SEI INSTITUTIONAL INVESTMENTS TRUST
N-1A/A, 1996-04-26
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<PAGE>   1
   
      AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON APRIL 26, 1996
    
                                                           File No. 33-58041
                                                           File No. 811-7257

- --------------------------------------------------------------------------------

                     SECURITIES AND EXCHANGE COMMISSION
                           Washington, D.C. 20549

                                  FORM N-1A

                      REGISTRATION STATEMENT UNDER THE
                           SECURITIES ACT OF 1933
                       PRE-EFFECTIVE AMENDMENT NO.        /X/

                                     and

                      REGISTRATION STATEMENT UNDER THE
                       INVESTMENT COMPANY ACT OF 1940
                             AMENDMENT NO. 1              /X/

                     SEI INSTITUTIONAL INVESTMENTS TRUST
             (Exact Name of Registrant as Specified in Charter)

                        c/o The CT Corporation System
                               2 Oliver Street
                         Boston, Massachusetts 02109
             (Address of Principal Executive Offices, Zip Code)

      Registrant's Telephone Number, including Area Code (610) 254-1000

                                DAVID G. LEE
                             C/O SEI CORPORATION
                           680 E. SWEDESFORD ROAD
                          WAYNE, PENNSYLVANIA 19087
                   (Name and Address of Agent for Service)

                                 Copies to:
                          RICHARD W. GRANT, ESQUIRE
                         MORGAN, LEWIS & BOCKIUS LLP
                            2000 ONE LOGAN SQUARE
                      PHILADELPHIA, PENNSYLVANIA  19103

- --------------------------------------------------------------------------------

              /X/ Approximate date of Proposed Public Offering:
                      As soon as practicable after the
                effective date of this Registration Statement

- --------------------------------------------------------------------------------

 Registrant hereby amends this Registration Statement on such date or dates
 as may be necessary to delay its effective date until the Registrant shall
  file a further amendment which specifically states that this Registration
 Statement shall thereafter become effective in accordance with Section 8(a)
   of the Securities Act of 1933 or until the Registration Statement shall
     become effective on such date as the Commission acting pursuant to
                      said Section 8(a) may determine.
 
  Pursuant to the provisions of Rule 24f-2 under the Investment Company Act
      of 1940, an indefinite number of units of beneficial interest are
              being registered by this Registration Statement.

- --------------------------------------------------------------------------------

<PAGE>   2
                     SEI INSTITUTIONAL INVESTMENTS TRUST

                            CROSS REFERENCE SHEET


   
<TABLE>
<CAPTION>
N-1A ITEM NO.                                     LOCATION
- --------------------------------------------------------------------------------

PART A - LARGE CAP, SMALL CAP, CORE FIXED INCOME, HIGH YIELD BOND,
INTERNATIONAL FIXED INCOME, EMERGING MARKETS EQUITY AND INTERNATIONAL EQUITY
FUNDS

<S>       <C>                                     <C>
Item 1.   Cover Page                              Cover Page                           
Item 2.   Synopsis                                Annual Operating Expenses            
Item 3.   Condensed Financial Information         (*)        
Item 4.   General Description of Registrant       The Trust; Investment Objectives     
                                                  and Policies; General Investment     
                                                  Policies; Description of             
                                                  Permitted Investments and Risk       
                                                  Factors                              
Item 5.   Management of the Fund                  General Information-Trustees of      
                                                  the Trust; The Money Managers;       
                                                  General Management of the Funds;     
Item 5a . Management Discussion and Analysis      (*) 
Item 6.   Capital Stock & Other Securities        General Information-Voting           
                                                  Rights, Shareholder Inquiries,       
                                                  Dividends; Taxes                     
                                                                                       
Item 7.   Purchase of Securities Being            Purchase and Redemption of Shares    
          Offered                                                                      
Item 8.   Redemption or Repurchase                Purchase and Redemption of Shares    
Item 9.   Pending Legal Proceedings               (*)


PART B - ALL FUNDS

Item 10.  Cover Page                              Cover Page
Item 11.  Table of Contents                       Table of Contents
Item 12.  General Information & History           The Trust
Item 13.  Investment Objectives & Policies        Investment Objectives and Policies;        
                                                  Investment Limitations; Securities          
                                                  Lending
Item 14.  Management of the Registrant            Trustees and Officers of the Trust   
                                                  (Prospectus); The Manager and             
                                                  Shareholder Servicing Agent
Item 15.  Control Persons & Principal Holders of  Trustees and Officers of the Trust
          Securities                              (Prospectus)
Item 16.  Investment Advisory & Other Services    GENERAL MANAGEMENT OF THE FUNDS 
                                                  (PROSPECTUS); THE MONEY MANAGERS 
                                                  (PROSPECTUS); The Manager; 
                                                  Distribution; Counsel &
                                                  Independent Public Accountants 
</TABLE>
    

<PAGE>   3
   
<TABLE>
<S>       <C>                                             <C>
Item 17.  Brokerage Allocation                            Fund Transactions
Item 18.  Capital Stock & Other Securities                Description of Shares
Item 19.  Purchase, Redemption, & Pricing of Securities   Purchase and Redemption of  
          Being Offered                                   Shares (Prospectus); Determination  
                                                          of Net Asset Value
Item 20.  Tax Status                                      Taxes (Prospectus); Taxes
Item 21.  Underwriters                                    Distribution
Item 22.  Calculation of Yield Quotation                  Performance
Item 23.  Financial Statements                            (*)
</TABLE>
    



PART C

 Information required to be included in Part C is set forth under the
 appropriate item, so numbered, in Part C of this Registration Statement.

(*) Not Applicable



                                     (ii)
<PAGE>   4
                      SEI INSTITUTIONAL INVESTMENTS TRUST

Large Cap Fund
Small Cap Fund
Core Fixed Income Fund
High Yield Bond Fund
International Fixed Income Fund
Emerging Markets Equity Fund
International Equity Fund


________ __, 1996

===============================================================================

This Prospectus sets forth concisely information about the above-referenced
funds.  Please read this Prospectus carefully before investing, and keep it on
file for future reference.

A Statement of Additional Information dated _______ __, 1996 has been filed
with the Securities and Exchange Commission and is available upon request and
without charge by writing the distributor, SEI Financial Services Company, 680
East Swedesford Road, Wayne, Pennsylvania 19087-1658 or by calling
1-800-342-5734.  The Statement of Additional Information is incorporated into
this Prospectus by reference.

SEI Institutional Investments Trust ("SIIT" or the "Trust") is an open-end
management investment company that offers certain institutions with investable
pools of assets that have signed an Investment Management Agreement with SEI
Financial Management Corporation a convenient means of investing in
professionally managed diversified and non-diversified portfolios of
securities.

THE HIGH YIELD BOND FUND INVESTS PRIMARILY, AND MAY INVEST ALL OF ITS ASSETS,
IN LOWER RATED BONDS, COMMONLY REFERRED TO AS "JUNK BONDS."  THESE SECURITIES
ARE SPECULATIVE AND ARE SUBJECT TO GREATER RISK OF LOSS OF PRINCIPAL AND
INTEREST THAN ARE INVESTMENTS IN HIGHER RATED BONDS.  BECAUSE INVESTMENT IN
SUCH SECURITIES ENTAILS GREATER RISKS, INCLUDING RISK OF DEFAULT, AN INVESTMENT
IN THE HIGH YIELD BOND FUND SHOULD NOT CONSTITUTE A COMPLETE INVESTMENT PROGRAM
AND MAY NOT BE APPROPRIATE FOR ALL INVESTORS.  INVESTORS SHOULD CAREFULLY
CONSIDER THE RISKS POSED BY AN INVESTMENT IN THE HIGH YIELD BOND FUND BEFORE
INVESTING.  SEE "INVESTMENT OBJECTIVES AND POLICIES," "GENERAL INVESTMENT
POLICIES AND RISK FACTORS - RISK FACTORS RELATING TO INVESTING IN LOWER RATED
SECURITIES" AND THE "APPENDIX."


===============================================================================


THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SECURITIES
AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS.  ANY REPRESENTATION TO THE CONTRARY IS
A CRIMINAL OFFENSE.

THE TRUST'S SHARES ARE NOT DEPOSITS OR OBLIGATIONS OF, OR GUARANTEED OR
ENDORSED BY, ANY BANK.  THE TRUST'S SHARES ARE NOT FEDERALLY INSURED BY THE
FEDERAL DEPOSIT INSURANCE CORPORATION, THE FEDERAL RESERVE BOARD OR ANY OTHER
GOVERNMENT AGENCY.  INVESTMENT IN THE SHARES INVOLVES RISK, INCLUDING POSSIBLE
LOSS OF THE PRINCIPAL AMOUNT INVESTED.
<PAGE>   5
<TABLE>
<CAPTION>

TABLE OF CONTENTS
=========================================================================================================================

                                                                                                                     Page
<S>                                                                                                                   <C>
ANNUAL OPERATING EXPENSES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   3

THE TRUST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5

ELIGIBLE INVESTORS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5

GENERAL MANAGEMENT OF THE FUNDS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   5

THE MONEY MANAGERS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   7

INVESTMENT OBJECTIVES AND POLICIES  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15

GENERAL INVESTMENT POLICIES AND RISK FACTORS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  20

INVESTMENT LIMITATIONS  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22

PURCHASE AND REDEMPTION OF SHARES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23

PERFORMANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24

TAXES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25

GENERAL INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26

DESCRIPTION OF PERMITTED INVESTMENTS AND RISK FACTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  28

APPENDIX  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1
</TABLE>





                                      -2-
<PAGE>   6

<TABLE>
<CAPTION>

         ANNUAL OPERATING EXPENSES (as a percentage of average net assets)
         -------------------------------------------------------------------------------------------------------
                                        Large Cap          Small Cap          Core Fixed         High Yield
                                        Fund               Fund               Income Fund        Bond Fund
         -------------------------------------------------------------------------------------------------------
         <S>                            <C>                <C>                <C>                <C>
         Management Fees (after fee     .27%               .54%               .17%               .38%
         waivers) (1)(2)
                                                                                                 .09%
         Other Expenses(3)(4):          .07%               .06%               .04%

         -------------------------------------------------------------------------------------------------------
         Total Fund Operating           .34%               .60%               .21%               .47%
         Expenses (after fee
         waivers)(4)
         =======================================================================================================
</TABLE>




<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------------------------------------------------------
                                               International Fixed        Emerging Markets Equity     International Equity
                                               Income Fund                Fund                        Fund
- ----------------------------------------------------------------------------------------------------------------------------
 <S>                                           <C>                        <C>                         <C>
 Management Fees(after fee waivers)(1)(2)      .34%                        .94%                       .38%

 Other Expenses(3)(4):                         .27%                        .37%                       .25%
 ---------------------------------------------------------------------------------------------------------------------------
 Total Fund Operating Expenses(after fee       .61%                       1.31%                       .63%
 waivers)(4)
============================================================================================================================
</TABLE>

   (1)   Each shareholder also enters into an Investment Management Agreement
         with SEI Financial Management Corporation ("SFM") for investment
         strategies and programs and asset allocation services, and agrees to
         pay annual fees calculated as a specified percentage of the client's
         average net assets invested in the Funds.

   (2)   SFM has agreed to waive, on a voluntary basis, a portion of its
         management fee, and the management fees shown reflect this voluntary
         waiver.  SFM reserves the right to terminate its waiver at any time in
         its sole discretion.  Absent such fee waiver, management fees would
         be:  Large Cap Fund, .45%, Small Cap Fund, .70%, Core Fixed Income
         Fund, .35%, High Yield Bond Fund, .54%, International Fixed Income,
         .50%, Emerging Markets Equity, 1.10%, and International Equity, .70%.

   (3)   "Other Expenses" are based on estimated amounts for the current fiscal
         year.

   (4)   SFM has agreed, on a voluntary basis, to waive a portion of its
         management fee and/or reimburse Other Expenses, and the Total
         Operating Expenses reflect these waivers and/or reimbursements.  In
         addition to the voluntary waivers and reimbursements, SFM has agreed
         to provide additional waivers and/or reimbursements to keep Other
         Expenses from exceeding current levels.  SFM reserves the right to
         terminate its voluntary waiver and/or reimbursement at any time in its
         sole discretion.  Absent such waivers and/or reimbursement, Total
         Operating Expenses would be:  Large Cap Fund, .52%, Small Cap Fund,
         .78%, Core Fixed Income Fund, .42%, High Yield Bond Fund, .63%,
         International Fixed Income, .83%, Emerging Markets Equity, 1.47%, and
         International Equity, .95%.





                                      -3-
<PAGE>   7

<TABLE>
<CAPTION>

 EXAMPLE
- -------------------------------------------------------------------------------------------------------------
                                                                  1 yr.      3 yrs.
 ------------------------------------------------------------------------------------------------------------
 <S>                                                             <C>        <C>       
 An investor in a Fund would pay the following expenses on a                          
 $1,000 investment assuming (1) a 5% annual return and (2)                            
 redemption at the end of each time period:                                           
          Large Cap Fund . . . . . . . . . . . . . . . . . .     $ 3.00     $11.00    
          Small Cap Fund . . . . . . . . . . . . . . . . . .     $ 6.00     $19.00    
          Core Fixed Income Fund . . . . . . . . . . . . . .     $ 2.00     $ 7.00    
          High Yield Bond Fund . . . . . . . . . . . . . . .     $ 5.00     $15.00    
          International Fixed Income Fund  . . . . . . . . .     $ 6.00     $20.00    
          Emerging Markets Equity Fund . . . . . . . . . . .     $13.00     $42.00    
          International Equity Fund  . . . . . . . . . . . .     $ 6.00     $20.00    

- -------------------------------------------------------------------------------------------------------------
</TABLE>


THE EXAMPLE SHOULD NOT BE CONSIDERED A REPRESENTATION OF PAST OR FUTURE
EXPENSES.  ACTUAL EXPENSES MAY BE GREATER OR LESS THAN THOSE SHOWN.

The purpose of the expense table and example is to assist the investor in
understanding the various costs and expenses that may be directly or indirectly
borne by investors in the Funds.  Additional information may be found under
"General Management of the Funds" and "The Money Managers."





                                      -4-
<PAGE>   8
THE TRUST
================================================================================

SEI Institutional Investments Trust ("SIIT" or the "Trust") is an open-end
management investment company, organized as a Massachusetts business trust
under a Declaration of Trust dated March 1, 1995.  The Declaration of Trust
permits the Trust to offer separate series ("funds") of units of beneficial
interest ("shares") and different classes of each fund.  Currently, the Trust
does not intend to issue additional classes of shares.  All consideration
received by the Trust for shares of any fund, and all assets of such fund
belong to that fund and would be subject to the liabilities related thereto.

The Trust pays its expenses, including the fees of its service providers, audit
and legal expenses, expenses of preparing prospectuses, proxy solicitation
materials and reports to shareholders, costs of custodial services and
registering the shares under federal and state securities laws, pricing,
insurance expenses, litigation and other extraordinary expenses, brokerage
costs, interest charges, taxes and organizational expenses.

This Prospectus offers shares of the following funds: Large Cap, Small Cap,
Core Fixed Income, High Yield Bond, International Fixed Income, Emerging
Markets Equity and International Equity Funds (each a "Fund" and, together, the
"Funds").  All of these Funds are diversified funds except for the
International Fixed Income Fund, which is a non-diversified fund.  Additional
information pertaining to the Trust may be obtained by writing SEI Financial
Services Company, 680 East Swedesford Road, Wayne, Pennsylvania 19087-1658, or
by calling 1-800-342-5734.


ELIGIBLE INVESTORS
================================================================================

Shares of the Funds are currently only offered to eligible investors.  Eligible
investors are principally institutions that who have investable pools of
assets, including defined benefit plans, defined contribution plans, health
care defined benefit plans and board-designated funds, insurance operating
funds, foundations, endowments, public plans and Taft-Hartley plans and have
entered into an Investment Management Agreement (the "Agreement") with SEI
Financial Management Corporation ("SFM")(collectively, "Eligible Investors").

Pursuant to the Agreement, SFM will consult with each Eligible Investor to
define its investment objectives, desired returns and tolerance for risk, and
to develop a plan for the allocation of assets among different asset classes.
The Agreement sets forth the fee to be paid to SFM, which is ordinarily
expressed as a percentage of the Eligible Investor's assets managed by SFM.
This fee, which is negotiated by the Eligible Investor and SFM, may include a
performance based fee or a fixed-dollar fee for certain specified services.
Either the Eligible Investor or SFM may terminate the Agreement upon written
notice as provided in the Agreement.


GENERAL MANAGEMENT OF THE FUNDS
================================================================================

SFM is a wholly-owned subsidiary of SEI Corporation ("SEI"), a financial
services company located in Wayne, Pennsylvania.  The principal business
address of SFM is 680 East Swedesford Road, Wayne, Pennsylvania, 19087-1658.
SEI was founded in 1968, and is a leading provider of investment solutions to
banks, institutional investors, investment advisers and insurance companies.
Affiliates of SFM have provided consulting advice to institutional investors
for more than 20 years, including





                                      -5-
<PAGE>   9

advice regarding selection and evaluation of money managers.  SFM currently
serves as manager and administrator to more than 29 investment companies,
including more than 273 funds, with more than $59 billion in assets as of
February 29, 1996.

SFM is the investment adviser for each Fund, and will operate as a "manager of
managers."  In this capacity, SFM will (i) have the ability to make investment
decisions for a Fund, and (ii) supervise the money managers (the "Money
Managers") that are responsible for the day-to-day investment management of a
Fund.  The Trust's Board of Trustees is responsible for overseeing the
operation of the Trust, including reviewing and approving the Trust's contracts
with SFM and the Money Managers.

SFM and its affiliates, SEI Fund Management ("SEI Management"), the Trust's
administrator, and SEI Financial Services Company ("SFS"), the Trust's
distributor, are responsible for providing general management, administrative,
investment advisory, portfolio management and distribution services to the
Funds and, subject to Board review and approval, will: (i) set the Funds'
overall investment strategies; (ii) recommend Money Managers; (iii) allocate
and, when appropriate, reallocate the Funds' assets among Money Managers; (iv)
monitor and evaluate Money Manager performance; and (v) oversee Money Manager
compliance with the Funds' investment objectives, policies and restrictions.

The Securities and Exchange Commission (the "SEC") has issued an exemptive
order (the "Order") that permits the Trust, with the approval of the Trust's
Board of Trustees, to retain Money Managers for a Fund without submitting the
Money Manager's contract with SFM to a vote of the Fund's shareholders.  The
Order also permits the non-disclosure of amounts payable by SFM under all such
contracts.  The Trust will notify shareholders of the appropriate Fund in the
event of any change in the identity of the Money Manager(s) for a Fund.

For its management services, SFM is entitled to a fee, which is calculated
daily and paid monthly, at the following annual rates (shown as a percentage of
the average daily net assets of each Fund):  Large Cap Fund, .40%; Small Cap
Fund, .65%; Core Fixed Income Fund, .30%; High Yield Bond Fund, .49%;
International Fixed Income Fund, .45%; Emerging Markets Equity Fund, 1.05%; and
International Equity Fund, .65%.  The advisory fee paid by the Emerging Markets
Equity Fund is higher than that paid by most other investment companies;
however, the Board of Trustees believes that the fees are competitive with
advisory fees paid by investment companies with similar investment objectives
and policies.  SFM pays each Money Manager for its services to a Fund from the
management fee SFM receives from that Fund.

SFS serves as the distributor pursuant to a distribution agreement with the
Trust.  No compensation is paid to the distributor for distribution services
for the shares of any Fund.  SEI Management will provide transfer agent and
shareholder recordkeeping services to the Trust and will provide the necessary
office space, equipment and personnel to operate and administer the Trust.  For
its services, SEI Management is entitled to a fee, which is calculated daily
and paid monthly, at annual rate of .05% of the average daily net assets of
each Fund.  SFM pays SEI Management for its services to a Fund from the
management fee SFM receives from that Fund.  The principal business address for
SFS is 680 East Swedesford Road, Wayne, Pennsylvania  19087-1658.





                                      -6-
<PAGE>   10
THE MONEY MANAGERS
================================================================================

Money Managers are selected for the Funds based primarily upon the research and
recommendations of SFM, which evaluates quantitatively and qualitatively a
Money Manager's skills and investment results in managing assets for specific
asset classes, investment styles and strategies.  The Money Managers are
responsible for the day-to-day management of all or a discrete portion of the
assets of a Fund, and are authorized to make investment decisions and place
orders on behalf of the Funds to effect the investment decisions made.
HOWEVER, SFM HAS ULTIMATE RESPONSIBILITY FOR THE INVESTMENT PERFORMANCE OF THE
FUNDS DUE TO ITS RESPONSIBILITY TO OVERSEE MONEY MANAGERS AND RECOMMEND THEIR
HIRING, TERMINATION AND REPLACEMENT.  Initially, the assets of each Fund will
be allocated among the Money Managers listed below.  However, SFM may change
the allocation of a Fund's assets among Money Managers at any time.

The following table sets forth information about the Money Managers selected
for the Funds by the Boards of Trustees (as of June 3, 1996).


<TABLE>
<CAPTION>

========================================================================================
 Fund                                              Money Managers
- ----------------------------------------------------------------------------------------
 <S>                         <C>
 Large Cap                   Alliance Capital Management L.P.
                             IDS Advisory Group Inc.
                             Provident Investment Counsel, Inc.
                             LSV Asset Management
                             Mellon Equity Associates
                             MERUS-UCA Capital Management
- ----------------------------------------------------------------------------------------
 Small Cap                   Apodaca-Johnston Capital Management
                             Nicholas-Applegate Capital Management
                             Wall Street Associates
                             Boston Partners Asset Management, L.P.
                             1838 Investment Advisors, L.P.
- ----------------------------------------------------------------------------------------
 International Equity        Acadian Asset Management, Inc.
                             Morgan Grenfell Investment Services, Ltd.
                             Schroder Capital Management International, Ltd.
- ----------------------------------------------------------------------------------------
 Emerging Markets Equity     Montgomery Asset Management, L.P.
- ----------------------------------------------------------------------------------------
 Core Fixed Income           Western Asset Management Company
                             Firstar Investment Research & Management Company
                             BlackRock Financial Management, Inc.
- ----------------------------------------------------------------------------------------
 High Yield Bond             BEA Associates
- ----------------------------------------------------------------------------------------
 International Fixed         Strategic Fixed Income, L.P.
 Income
========================================================================================
</TABLE>





                                      -7-
<PAGE>   11

1838 INVESTMENT ADVISORS, L.P.

1838 Investment Advisors, L.P. ("1838") acts as a Money Manager for a portion
of the Small Cap Fund, which is also advised by SFM, Apodaca-Johnston Capital
Management, Inc., Boston Partners Asset Management, L.P., Nicholas-Applegate
Capital Management, Inc. and Wall Street Associates.  As of March 31, 1996,
1838 managed $4.7 billion in assets, in large and small capitalization equity,
fixed income and balanced account funds.  Clients include corporate employee
benefit plans, municipalities, endowments, foundations, jointly trusteed plans,
insurance companies and wealthy individuals.  The principal address of 1838 is
100 Matsonford Road, Suite 320, Radnor, Pennsylvania 19087.

Edwin B. Powell, Joseph T. Doyle, Jr., Holly L. Guthrie and Cynthia R. Axlrod
are the Fund Managers for the portion of the Small Cap Fund's assets allocated
to 1838.  These individuals work as a team and share responsibility.  Mr. Doyle
has been with 1838 since 1988.  Mr. Powell managed small cap equity funds for
Provident Capital Management from 1987 to 1994.  Prior to joining 1838 in 1994,
Ms. Guthrie managed small cap equity funds for Provident Capital Management
from 1992 to 1994.  Prior to that, she was employed by CoreStates Investment
Advisers from 1987 to 1992 as an equity analyst and fund manager.  Prior to
joining 1838 in 1995, Ms. Axlrod was with Friess Associates from 1992 to 1995.
Prior to that, she was with Provident Capital Management from 1987 to 1992.

ACADIAN ASSET MANAGEMENT, INC.

Acadian Asset Management, Inc. ("Acadian") acts as a Money Manager for a
portion of the International Equity Fund, which is also advised by SFM, Morgan
Grenfell Investment Services Limited and Schroder Capital Management
International Limited.  Acadian, a wholly-owned subsidiary of United Asset
Management Corporation, was founded in 1977, and manages approximately $3
billion in assets invested globally.  The principal address of Acadian is Two
International Place, Boston, Massachusetts 02110.

A committee of investment professionals at Acadian are responsible for managing
the International Equity Fund's assets allocated to Acadian.

ALLIANCE CAPITAL MANAGEMENT L.P.

Alliance Capital Management L.P. ("Alliance") acts as a Money Manager for a
portion of the Large Cap Fund, which is also advised by SFM, IDS Advisory Group
Inc., LSV Asset Management, Mellon Equity Associates, MERUS-UCA Capital
Management and Provident Investment Counsel, Inc.  Alliance is a registered
investment adviser organized as a Delaware limited partnership, which
originated as Alliance Capital Management Corporation in 1971.  Alliance
Capital Management Corporation, an indirect wholly-owned subsidiary of The
Equitable Life Assurance Society of the United States, is the general partner
of Alliance.  As of March 31, 1996, Alliance managed more than $160 billion in
assets.  The principal address of Alliance is 1345 Avenue of the Americas, New
York, New York 10105.

A committee of investment professionals at Alliance manages the Large Cap
Fund's assets allocated to Alliance.





                                      -8-
<PAGE>   12

APODACA-JOHNSTON CAPITAL MANAGEMENT, INC.

Apodaca-Johnston Capital Management, Inc. ("Apodaca") acts as a Money Manager
for a portion of the Small Cap Fund, which is also advised by SFM, 1838, Boston
Partners Asset Management, L.P., Nicholas-Applegate Capital Management, Inc.
and Wall Street Associates.  Apodaca is a California corporation that is
equally owned by Scott Johnston, Jerry Apodaca Jr., and Jerry Apodaca, Sr.
Apodaca's predecessor was founded in 1985, and as of September 30, 1995,
Apodaca had approximately $290 million in assets under management.  Apodaca's
clients include pension and profit sharing plans, an endowment fund and an
investment company portfolio.  The principal address of Apodaca is 50
California Street, Suite 3315, San Francisco, California 94014.

The portion of the Small Cap Fund's assets allocated to Apodaca is managed by
Scott Johnston and Jerry C. Apodaca, Jr.  Mr. Johnston, a principal of Apodaca,
founded Apodaca's predecessor in 1985, and has 23 years of investment
experience.  Jerry C. Apodaca, Jr. joined the firm as a principal in 1991, and
has 12 years of investment experience.  Before joining Apodaca, Mr. Apodaca was
a Vice President of Marketing at Newport First Investments, Inc.

Apodaca has served as an investment adviser to only one investment company
portfolio and, as such, does not have extensive experience advising a highly
regulated entity such as an investment company.

BEA ASSOCIATES

BEA Associates ("BEA") acts as the Money Manager for the High Yield Bond Fund,
which is also advised by SFM.  BEA is a general partnership organized under the
laws of the State of New York and, together with its predecessor firms, has
been engaged in the investment advisory business for more than 50 years.
Credit Suisse Capital Corporation ("CS Capital") is an 80% partner in BEA and
CS Advisers Corp., a New York corporation which is a wholly-owned subsidiary of
CS Capital, is a 20% partner in BEA.  CS Capital is a wholly-owned subsidiary
of Credit Suisse Investment Corporation, which is a wholly-owned subsidiary of
Credit Suisse, the second largest Swiss bank, which, in turn, is a subsidiary
of CS Holding, a Swiss corporation.  BEA is registered as an investment adviser
under the Investment Advisers Act of 1940.

BEA is a diversified asset manager, handling global equity, balanced, fixed
income and derivative securities accounts for private individuals, as well as
corporate pension and profit-sharing plans, state pension funds, union funds,
endowments and other charitable institutions.  As of March 1, 1996, BEA managed
approximately $28 billion in assets.  BEA's principal business address is One
Citicorp Center, 153 East 53rd Street, New York, New York  10022.

The High Yield Bond Fund's assets are managed by Richard J. Lindquist, C.F.A.
Mr. Lindquist joined BEA in 1995 as a result of BEA's acquisition of CS First
Boston Investment Management, and has had 11 years of investment management
experience, including six years of experience working with high yield bonds.
Prior to joining CS First Boston, Mr.  Lindquist was with Prudential Insurance
Company of America where he managed high yield funds totalling approximately
$1.3 billion.

BLACKROCK FINANCIAL MANAGEMENT INC.

BlackRock Financial Management, Inc. ("BlackRock") acts as a Money Manager for
a portion of the Core Fixed Income Fund, which is also advised by SFM, Firstar
Investment Research & Management Company and Western Asset Management Company.
BlackRock, a registered investment adviser, is a





                                      -9-
<PAGE>   13

Delaware corporation.  BlackRock's predecessor was founded in 1988, and as of
March 1, 1996, BlackRock had $36.5 billion in assets under management.
BlackRock is wholly-owned by PNC Asset Management Group, Inc., a wholly-owned
subsidiary of PNC Bank, N.A.  PNC Bank, N.A.'s ultimate parent is PNC Bank
Corp., One PNC Plaza, Pittsburgh, Pennsylvania 15265, a bank holding company.
BlackRock provides investment advice to investment companies, trusts,
charitable organizations, pension and profit sharing plans and government
entities.  BlackRock's principal business address is 345 Park Avenue, 29th
Floor, New York, New York 10154.

BlackRock employs a team approach in managing the Fund assets allocated to
BlackRock; however, the Fund Manager who has day-to-day responsibility for the
portion of the Core Fixed Income Fund's assets allocated to BlackRock is Keith
Anderson.  Mr. Anderson is a Managing Director and Co-Head of Portfolio
Management at BlackRock, and has 13 years experience investing in fixed income
securities.  Prior to founding BlackRock in 1988, Mr. Anderson was a Vice
President in Fixed Income Research at The First Boston Corporation.

BOSTON PARTNERS ASSET MANAGEMENT, L.P.

Boston Partners Asset Management, L.P. ("BPAM") acts as a Money Manager for a
portion of the Small Cap Fund which is also advised by SFM, 1838, Apodaca,
Nicholas-Applegate Capital Management, Inc. and Wall Street Associates.  BPAM,
a Delaware limited partnership, is a registered investment adviser.  BPAM's
general partner, Boston Partners, Inc., One Financial Center, 43rd Floor,
Boston, Massachusetts 02111 owns approximately 20% of BPAM's partnership
interests.  Desmond J. Heathwood, Chief Investment Officer of BPAM, is the sole
shareholder of Boston's Partners, Inc.  BPAM was founded in April, 1995, and as
of December 31, 1995, it had approximately $5.5 billion in assets under
management.  BPAM's clients include corporations, endowments, foundations,
pension and profit sharing plans and two other investment companies.  The
principal business address of BPAM is One Financial Center, 43rd Floor, Boston,
Massachusetts 02111.

The portion of the Small Cap Fund's assets allocated to BPAM is managed by
Wayne J. Archambo, C.F.A.  Mr. Archambo has been employed by BPAM since its
organization, and has more than 10 years experience investing in equities.
Prior to joining BPAM, Mr. Archambo was a Senior Vice President and member of
the Equity Policy Committee at The Boston Company Asset Management, Inc.
("TBCAM"), where he participated in the creation of that firm's Small
Capitalization Value Product and Mid Capitalization Product.  Prior to Joining
TBCAM in 1989, Mr. Archambo spent six years as a fund manager/analyst for
Boston-based Systematic Investors.

FIRSTAR INVESTMENT RESEARCH & MANAGEMENT COMPANY

Firstar Investment Research & Management Company ("FIRMCO") acts as a Money
Manager for a portion of the Core Fixed Income Fund, which is also advised by
SFM, BlackRock and Western Asset Management Company.  FIRMCO is a registered
investment adviser, founded in 1986.  As of December 31, 1995, it had
approximately $15.6 billion in assets under management.  FIRMCO is a
wholly-owned subsidiary of Firstar Corporation, a bank holding company located
at 777 East Wisconsin Avenue, Milwaukee, Wisconsin 53202.  FIRMCO's clients
include pension and profit sharing plans, trusts and estates and one other
investment company.  The principal business address of FIRMCO is 777 East
Wisconsin Avenue, Suite 800, Milwaukee, Wisconsin 53202.





                                      -10-
<PAGE>   14

Mr. Charles Groeschell, a Senior Vice President of FIRMCO, has been employed by
FIRMCO or its affiliates since 1983, and has had 13 years experience in fixed
income investing.  Mr. Groeschell manages the portion of the Core Fixed Income
Fund's assets that is allocated to FIRMCO.

IDS ADVISORY GROUP INC.

IDS Advisory Group Inc. ("IDS") acts as a Money Manager for a portion of the
Large Cap Fund, which is also advised by SFM, Alliance, LSV Asset Management,
Mellon Equity Associates, MERUS-UCA Capital Management and Provident Investment
Counsel, Inc.  IDS is a registered investment adviser and wholly-owned
subsidiary of American Express Financial Corporation.  As of March 1, 1996, IDS
managed over $24 billion in assets with $5 billion of this total in large
capitalization growth domestic equities.  IDS was founded in 1972 to manage
tax-exempt assets for institutional clients.  The principal business address of
IDS is IDS Tower 10, Minneapolis, Minnesota 55440.

A committee composed of eight investment fund managers of the equity investment
team has been managing the Large Cap Fund's assets allocated to IDS since the
Fund's inception.  No individual person is primarily responsible for making
recommendations to that committee.

LSV ASSET MANAGEMENT

LSV Asset Management ("LSV") acts as a Money Manager for a portion of the Large
Cap Fund, which is also advised by SFM, Alliance, IDS, Mellon Equity
Associates, MERUS-UCA Capital Management and Provident Investment Counsel, Inc.
LSV is a registered investment adviser organized as a Delaware general
partnership, in which an affiliate of SFM owns a majority interest.  The
principal business address of LSV is 181 W. Madison Avenue, Chicago, Illinois
60602.

LSV makes investment decisions based on a quantitative computer model and,
based on its ongoing research and statistical analysis, makes adjustments to
the model.  Securities are identified for purchase or sale by the Portfolio
based upon the computer model and defined variance tolerances.  Purchases and
sales are effected by LSV based upon the output from the model.

Investment decisions for the Large Cap Fund's assets allocated to LSV are made
by the quantitative computer model.  Josef Lakonishok, Andrei Shleifer and
Robert Vishny, officers of LSV, monitor the quantitative analysis model on a
continuous basis, and make adjustments to the model based on their ongoing
research and statistical analysis.  Securities are identified for purchase or
sale by the Fund based upon the computer model and defined variance tolerances.
Purchases and sales are effected by LSV based upon the output from the model.

MELLON EQUITY ASSOCIATES

Mellon Equity Associates ("MEA") acts as a Money Manager for a portion of the
Large Cap Fund, which is also advised by SFM, Alliance, IDS, LSV, MERUS-UCA
Capital Management and Provident Investment Counsel, Inc.  MEA is a
Pennsylvania business trust founded in 1987, whose beneficial owners are Mellon
Bank, N.A. and MMIP, Inc.  MEA is a professional investment counseling firm
that provides investment management services to the equity and balanced
pension, public fund and profit-sharing investment management markets, and is
an investment adviser registered under the Investment Advisers Act of 1940, as
amended.  As of December 31, 1995, MEA had discretionary





                                      -11-
<PAGE>   15

management authority with respect to approximately $8.8 billion of assets.
MEA's predecessor organization had managed domestic equity tax-exempt
institutional accounts since 1947.  The principal business address for MEA is
500 Grant Street, Suite 3700, Pittsburgh, Pennsylvania 15258.

William P. Rydell and Robert A. Wilk manage the Large Cap Fund's assets
allocated to MEA.  Mr. Rydell is the President and Chief Executive Officer of
MEA, and has been managing individual and collectivized portfolios at MEA since
1982.  Mr. Wilk is a Senior Vice President and Portfolio Manager of MEA, and
has been involved with securities analysis, quantitative research, asset
allocation, trading and client services at MEA since April 1990.  Prior to
joining MEA, Mr. Wilk was in charge of portfolio management and conducted
quantitative research for another investment subsidiary of Mellon Bank
Corporation, Triangle Portfolio Associates.

MERUS-UCA CAPITAL MANAGEMENT

MERUS-UCA Capital Management ("MERUS-UCA") acts as a Money Manager for a
portion of the Large Cap Fund, which is also advised by SFM, Alliance, IDS,
LSV, MEA and Provident Investment Counsel, Inc.  MERUS-UCA is a separate
division of Union Bank of California, N.A. and provides equity and fixed-income
management services to a broad array of corporate and municipal clients.  As of
December 31, 1995, MERUS-UCA had discretionary management authority with
respect to approximately $11.9 billion of assets.  The principal address of
MERUS-UCA is 475 Sansom Street, San Francisco, California 94111.

A committee of investment professionals at MERUS-UCA manages the Large Cap
Fund's assets allocated to MERUS-UCA.

MONTGOMERY ASSET MANAGEMENT, L.P.

Montgomery Asset Management, L.P. ("MAM") acts as a Money Manager for the
Emerging Markets Equity Fund, which is also advised by SFM.  MAM is an
independent affiliate of Montgomery Securities, a San Francisco-based
investment banking firm. As of February 29, 1996, MAM had approximately $7.1
billion in assets under management. MAM has over four years experience
providing investment management services. The principal address of MAM is 600
Montgomery Street, San Francisco, California 94111.

Josephine S. Jimenez and Bryan L. Sudweeks share primary responsibility for the
Emerging Markets Equity Fund's assets allocated to Morgan Grenfell.  Ms.
Jimenez and Dr. Sudweeks have thirteen years and six years experience,
respectively, in emerging markets investment.  Both joined MAM in 1991.

MORGAN GRENFELL INVESTMENT SERVICES LIMITED

Morgan Grenfell Investment Services Limited ("Morgan Grenfell") acts as a Money
Manager for a portion of the International Equity Fund, which is also advised
by SFM, Acadian and Schroder Capital Management International Limited.  Morgan
Grenfell, a subsidiary of Morgan Grenfell Asset Management Limited, managed
over $12 billion in assets as of December 31, 1995.  Morgan Grenfell Asset
Management Limited, a wholly-owned subsidiary of Deutsche Bank, A.G., a German
financial services conglomerate, managed over $94 billion in assets as of
December 31, 1995.  Morgan Grenfell





                                      -12-
<PAGE>   16

has over 11 years experience in managing international funds for North American
clients.  It employs more than 15 European investment professionals.  Morgan
Grenfell attempts to exploit perceived inefficiencies present in the European
markets with original research and an emphasis on stock selection.  The
principal address of Morgan Grenfell is 20 Finsbury Circus, London, EC2M 1NB.

Julian R. Johnston and Jeremy G. Lodwick share primary responsibility for the
portion of the International Equity Fund's assets allocated to Morgan Grenfell.
Mr. Johnston has 20 years experience in European equity investment.  Mr.
Johnston joined Morgan Grenfell in 1984 and is currently the head of the Morgan
Grenfell Continental European investment team.  He speaks French, German,
Swedish and Danish fluently.  Mr. Lodwick has ten years experience in European
equity investment.  He joined Morgan Grenfell in 1986 and was a UK equity
research analyst before moving to New York where he was a member of the client
liaison and marketing team for five years.  He returned to the London office in
1991 to manage European equity funds.

NICHOLAS-APPLEGATE CAPITAL MANAGEMENT, INC.

Nicholas-Applegate Capital Management, Inc. ("Nicholas-Applegate") acts as a
Money Manager for a portion of the Small Cap Fund, which is also advised by
SFM, 1838, Apodaca, BPAM and Wall Street Associates.

Nicholas-Applegate has operated as an investment adviser that provides
investment services to employee benefit plans, endowments, foundations, other
institutions and investment companies since 1984.  As of December 31, 1995,
Nicholas-Applegate had discretionary management authority with respect to
approximately $29 billion of assets.  Nicholas-Applegate, pursuant to a
partnership agreement, is controlled by its general partner, Nicholas-Applegate
Capital Management Holdings, L.P. a limited partnership controlled by Arthur E.
Nicholas.  The principal business address of Nicholas-Applegate is 600 West
Broadway, 29th Floor, San Diego, California 92101.

Nicholas-Applegate manages the Small Cap Fund's assets allocated to
Nicholas-Applegate through its management team under the supervision of Mr.
Nicholas, founder and Chief Investment Officer of the firm.
Nicholas-Applegate's systems driven investment team, headed by Lawrence S.
Speidell, is primarily responsible for the day-to-day management of the Fund's
assets allocated to Nicholas-Applegate.  Mr. Speidell has been a fund manager
and investment team leader with Nicholas-Applegate since March, 1994.  Prior
to joining Nicholas-Applegate, he was an institutional portfolio manager with
Batterymarch Financial Management.

PROVIDENT INVESTMENT COUNSEL, INC.

Provident Investment Counsel, Inc. ("Provident") acts as a Money Manager for a
portion of the Large Cap Fund, which is also advised by SFM, Alliance, IDS,
LSV, MEA and MERUS-UCA.

Provident is a registered investment adviser, which, through its predecessors,
has been in business since 1951, and is a wholly-owned subsidiary of UAM.
Provident provides investment advice to corporations, public entities,
foundations and labor unions, as well as to other investment companies.  As of
December 31, 1995, Provident had over $16 billion in client assets under
management.

The principal business address of Provident is 300 North Lake Avenue, Pasadena,
California 91101.





                                      -13-
<PAGE>   17

A team consisting of the senior investment professionals is responsible for the
development of investment policy and strategy.  The implementation of these
decisions for the portion of the Large Cap Fund's assets allocated to Provident
is the responsibility of Lauro Guerra, Executive Vice President, and Jeffrey J.
Miller, Managing Director.  Mr. Guerra has been with Provident since 1983 and
Mr. Miller has been with the firm since 1972.

SCHRODER CAPITAL MANAGEMENT INTERNATIONAL LIMITED

Schroder Capital Management International Limited ("SC") acts as a Money
Manager for a portion of the International Equity Fund, which is also advised
by SFM, Acadian and Morgan Grenfell.  SC was founded in January 1989 and is a
wholly-owned indirect subsidiary of Schroders plc, the holding company parent
of an investment banking and investment management group of companies (the
"Schroder Group").  The investment management operations of the Schroder Group
are located in 17 countries worldwide, including seven in Asia.  As of December
31, 1995, the Schroder Group had over $110 billion in assets under management.
As of that date, SC, together with the U.S. affiliate, Schroder Capital
Management International, Inc., 787 Seventh Avenue, New York, New York, had
over $16 billion in assets under management.

The Schroder Group has research resources throughout the Asian region,
consisting of offices in Tokyo, Hong Kong, Singapore, Kuala Lumpur, Seoul,
Taipei Sydney, Bangkok, Shanghai and Jakarta, staffed by 41 investment
professionals.  SC's investment process emphasizes individual stock selection
and company research conducted by professionals at each local office, which is
integrated into SC's global research network by the manager of research in
London.  The principal address of SC is 33 Gutter Lane, London EC2V 8AS,
England.

John S. Ager, Louise Croset and Donald H.M. Farquharson share primary
responsibility for SC's portion of the Fund.  John S. Ager is a Senior Vice
President and Director of SC.  Mr. Ager has more than 20 years of experience in
managing client accounts invested in Asian countries and has been with the
Schroder Group since 1969 and with SC since 1989.  Ms. Croset is a First Vice
President and has been with SC since 1993.  Prior to joining SC, Ms. Croset
served as a Stock Analyst/Fund Manager with Wellington Management Company from
1987-1993.  Mr. Farquharson is a First Vice President of SC and has been with
the Schroder Group since 1983 and with SC since 1995.

STRATEGIC FIXED INCOME L.P.

Strategic Fixed Income L.P. ("SFI") acts as the Money Manager for the
International Fixed Income Fund, which is also advised by SFM.  SFI is a
limited partnership formed in 1991 under the laws of the State of Delaware, to
manage multi-currency fixed income funds.  The general partner of the firm is
Kenneth Windheim and the limited partner is Strategic Investment Management
("SIM").  As of March 1, 1995, SFI had approximately $5.4 billion of client
assets under management.  The principal address of SFI is 1001 Nineteenth
Street North, 17th Floor, Arlington, Virginia 22209.

Kenneth Windheim, President of SFI, is the portfolio manager of the
International Fixed Income Fund.  Mr. Windheim is assisted by Gregory Barnett
and David Jallits, Directors of SFI and Fund  Managers since the Fund's
inception.  Prior to forming SFI, Kenneth Windheim managed a global fixed
income portfolio at Prudential Asset Management.  Prior to joining SFI, Gregory
Barnett was portfolio manager for the Pilgrim Multi-Market Income Fund with
active use of foreign exchange option





                                      -14-
<PAGE>   18
strategies.  Prior to that, he was vice president and senior fixed income
portfolio manager at Lexington Management.  Prior to joining SFI, David Jallits
was senior Portfolio Manager for a hedge fund at Teton Partners.  From 1982 to
1994, he was Vice President and Global Fixed Income Portfolio Manager at The
Putnam Companies.

WALL STREET ASSOCIATES

Wall Street Associates ("WSA") serves as a Money Manager for a portion of the
Small Cap Fund, which is also advised by SFM, 1838, Apodaca, BPAM and
Nicholas-Applegate.  WSA was founded in 1987, and as of December 31, 1995, had
approximately $900 million in assets under management.  WAS provides investment
advisory services for institutional clients, an investment partnership for
which it serves as general partner, a group trust, for which it serves as sole
investment manager, and an offshore fund for foreign investors for which it
serves as the sole investment manager.  The principal business address of WSA
is at 1200 Prospect Street, Suite 100, La Jolla, California 92037.

William Jeffery III, Kenneth F. McCain, and Richard S. Coons, each of whom owns
1/3 of WSA, serve as fund managers for the portion of the Small Cap Fund's
assets allocated to WSA.  Each is a principal of WSA and, together, they have
73 years of investment management experience.

WSA has served as an investment sub-adviser to only one registered investment
company (since June 28, 1995), and, as such, does not have extensive experience
advising a highly regulated entity such as an investment company.

WESTERN ASSET MANAGEMENT COMPANY

Western Asset Management Company ("Western") acts as a Money Manager for a
portion of the Core Fixed Income Fund, which is also advised by SFM, BlackRock
and FIRMCO.  Western is a wholly-owned subsidiary of Legg Mason, Inc., a
financial services company located in Baltimore, Maryland.  Western was founded
in 1971 and specializes in the management of fixed income funds.  As of March
31, 1996, Western managed approximately $19.8 billion in client assets,
including $3 billion of investment company assets.  The principal business
address of Western is 117 East Colorado Boulevard, Pasadena, California 91105.

Kent S. Engel, Director and Chief Investment Officer of Western, is primarily
responsible for the day-to-day management of the portion of the Core Fixed
Fund's assets allocated to Western.  Mr. Engel has been with Western and its
predecessor since 1969.


INVESTMENT OBJECTIVES AND POLICIES
================================================================================

Each Fund's investment objective and policies are set forth below.  See
"General Investment Policies and Risk Factors" for information about
additional investment practices that some or all of the Funds may employ.





                                      -15-
<PAGE>   19

LARGE CAP FUND

The investment objective of the Large Cap Fund is long-term growth of capital
and income.  There can be no assurance that the Fund will achieve its
investment objective.

Under normal market conditions, the Fund will invest at least 65% of its total
assets in equity securities of large companies (i.e., companies with market
capitalizations of more than $1 billion at the time of purchase).  Any
remaining assets may be invested in fixed income securities or in equity
securities of smaller companies that the Fund's Money Managers believe are
appropriate in light of the Fund's objective.  Fixed income securities must be
rated investment grade or better, i.e., rated in one of the four highest rating
categories by a nationally recognized statistical rating organization
("NRSRO"), or, if not rated, determined to be of comparable quality by the
Fund's Money Managers.  Fixed income securities rated in the fourth highest
rating category lack outstanding investment characteristics, and have
speculative characteristics as well.

SMALL CAP FUND

The investment objective of the Small Cap Fund is capital appreciation.  There
can be no assurance that the Fund will achieve its investment objective.

Under normal market conditions, the Fund will invest at least 65% of its total
assets in the equity securities of smaller companies (i.e., companies with
market capitalizations of less than $1 billion at the time of purchase).  Any
remaining assets may be invested in fixed income securities or in equity
securities of larger companies that the Fund's Money Managers believe are
appropriate in light of the Fund's objective.  Fixed income securities must be
rated investment grade or better, i.e., rated in one of the four highest rating
categories by an NRSRO, or, if not rated, determined to be of comparable
quality by the Fund's Money Managers.  Fixed income securities rated in the
fourth highest rating category lack outstanding  investment characteristics,
and have speculative characteristics as well.


CORE FIXED INCOME FUND

The investment objective of the Core Fixed Income Fund is current income
consistent with the preservation of capital.  There can be no assurance that
the Fund will achieve its investment objective.

Under normal market conditions, the Fund will invest at least 65% of its total
assets in fixed income securities that are rated investment grade or better,
i.e., rated in one of the four highest rating categories by an NRSRO at the
time of purchase, or, if not rated are determined to be of comparable quality
by the Fund's Money Managers.  Fixed income securities rated in the fourth
highest rating category lack outstanding investment characteristics, and have
speculative characteristics as well.

The Fund may acquire all types of fixed income securities issued by domestic
and foreign private and governmental issuers, including mortgage-backed and
asset-backed securities.  The Fund may invest not only in traditional fixed
income securities, such as bonds and debentures, but in structured securities
that make interest and principal payments based upon the performance of
specified assets or indices.  Structured securities include mortgage-backed
securities such as pass-through certificates, collateralized mortgage
obligations and interest and principal only components of mortgage-backed
securities.  The Fund may also invest in mortgage dollar roll transactions and
Yankee obligations.





                                      -16-
<PAGE>   20

The Core Fixed Income Portfolio invests in a portfolio with a dollar-weighted
average duration that will, under normal market conditions, stay within plus or
minus 20% of what the Money Managers believe to be the average duration of the
domestic bond market as a whole.  The Money Managers base their analysis of the
average duration of the domestic bond market on bond market indices which they
believe to be representative.  The Money Managers currently use the Lehman
Aggregate Bond Index for this purpose.

HIGH YIELD BOND FUND

The investment objective of the High Yield Bond Fund is to maximize total
return.  There can be no assurance that the Fund will achieve its investment
objective.

Under normal market conditions, the Fund will invest at least 65% of its total
assets in fixed income securities that are rated below investment grade i.e.,
rated below the top four rating categories by a NRSRO at the time of purchase,
or, if not rated, determined to be of comparable quality by the Fund's Money
Manager.  Below investment grade securities are commonly referred to as "junk
bonds," and generally entail increased credit and market risk.  The achievement
of the Fund's investment objective may be more dependent on the Money Manager's
own credit analysis than would be the case if the Fund invested in higher rated
securities.  There is no bottom limit on the ratings of high yield securities
that may be purchased and held by the Fund.  These securities may have
predominantly speculative characteristics or may be in default.  Any remaining
assets may be invested in equity, investment grade fixed income and money
market securities that the Money Manager believes are appropriate in light of
the Fund's objective.

The Fund may acquire all types of fixed income securities issued by domestic
and foreign private and governmental issuers, including mortgage-backed and
asset-backed securities.  The Fund may also invest in Yankee obligations.  The
Fund's Money Manager may vary the average maturity of the securities in the
Fund without limit, and there is no restriction on the maturity of any
individual security.

The "Appendix" to this Prospectus sets forth a description of the bond rating
categories of several NRSROs.  Ratings of each NRSRO represents its opinion of
the safety of principal and interest payments (and not the market risk) of
bonds and other fixed income securities it undertakes to rate at the time of
issuance.  Ratings are not absolute standards of quality and may not reflect
changes in an issuer's creditworthiness.  Accordingly, although the Fund's
Money Manager will consider ratings, it will perform its own analyses and will
not rely principally on ratings.  The Fund's Money Manager will consider, among
other things, the price of the security and the financial history and
condition, the prospects and the management of an issuer in selecting
securities for the Fund.


INTERNATIONAL FIXED INCOME FUND

The International Fixed Income Fund seeks to provide capital appreciation and
current income.  There can be no assurance that the Fund will achieve its
investment objective.

Under normal market conditions, the Fund will invest in at least 65% of its
total assets in investment grade fixed income securities of non-U.S. issuers
located in at least three countries other than the





                                      -17-
<PAGE>   21

United States.  Any remaining assets may be invested in obligations issued or
guaranteed as to principal and interest by the United States Government, its
agencies or instrumentalities and preferred stocks.  The Fund also may engage
in short selling against the box.  Although the Fund will concentrate its
investments in relatively developed countries, the Fund may invest in
securities of companies located in and governments of emerging market
countries, including countries formerly controlled by communist governments.
Investments in such emerging markets countries will not exceed 5% of the Fund's
total assets at the time of purchase.  Such investments entail risks which
include the possibility of political or social instability, adverse changes in
investment or exchange control regulations, expropriation and withholding of
dividends at the source.  In addition, such securities may trade with less
frequency and volume than securities of companies and governments of more
developed, stable nations.

The Fund may acquire all types of fixed income securities issued by foreign
private and governmental issuers, including mortgage-backed and asset-backed
securities.  The Fund may invest not only in traditional fixed income
securities, such as bonds and debentures, but in structured securities that
derive interest and principal payments from specified assets or indices.  All
such investments will be in investment grade securities denominated in various
currencies, including the European Currency Unit.  Investment grade securities
are rated in one of the highest four rating categories by a NRSRO, or, if not
rated, determined to be of comparable quality as determined by the Fund's Money
Managers.  Fixed income securities rated in the fourth highest rating category
lack outstanding investment characteristics, and have speculative
characteristics as well.

There are no restrictions on the average maturity of the Fund or the maturity
of any single instrument.  Maturities may vary widely depending on the Fund's
Money Managers' assessment of interest rate trends and other economic and
market factors.

The dollar amount of short sales at any one time shall not exceed 25% of the
net equity of the Fund, and the value of the securities of any one issuer in
which the Fund is short may not exceed the lesser of 2.0% of the value of the
Fund's net assets or 2.0% of the securities of any class of any issuer.  Short
sales may be made only in securities that are fully listed on a national
securities exchange.  This provision does not apply to short sales against the
box.

The Fund is a non-diversified fund.  Investment in a non-diversified company
may entail greater risk than investment in a diversified company.  The Fund's
ability to focus its investments on a fewer number of issuers means that
economic, political or regulatory developments affecting the Fund's investment
securities could have a greater impact on the total value of the Fund than
would be the case if the Fund were diversified among more issuers.  The Fund
intends to comply with the diversification requirements of Subchapter M of the
Internal Revenue Code of 1986, as amended (the "Code").  See "Taxes" for
additional information.


EMERGING MARKETS EQUITY FUND

The Emerging Markets Equity Fund seeks to provide capital appreciation.  There
can be no assurance that the Fund will achieve its investment objective.





                                      -18-
<PAGE>   22

Under normal market conditions, the Fund will invest at least 65% of its total
assets in the equity securities of emerging market issuers.  The Fund's Money
Manager considers emerging market countries to be countries that possess an
emerging or developing economy and market according to the World Bank or the
United Nations.  The Fund's Money Manager considers emerging market issuers to
be companies the securities of which are principally traded in the capital
markets of emerging market countries; that derive at least 50% of their total
revenue from either goods produced or services rendered in emerging market
countries, regardless of where the securities of such companies are principally
traded; or that are organized under the laws of and have a principal office in
an emerging market country.  Under normal market conditions, the Fund maintains
investments in at least six emerging market countries and does not invest more
than 35% of its total assets in any one country.  Any remaining assets may be
invested in fixed income securities of emerging market governments and
companies.  Certain securities issued by governments of emerging market
countries are or may be eligible for conversion into investments in emerging
market companies under debt conversion programs sponsored by such governments.
The Fund may invest up to 5% of its total assets in securities that are rated
below investment grade.  Bonds rated below investment grade are often referred
to as "junk bonds."  Such securities involve greater risk of default or price
decline than investment grade securities.  See "Risks Factors Relating to
Investing in Lower Rated Securities" in "General Investment Policies and Risk
Factors."

When in the Fund's Money Manager's opinion there is an insufficient supply of
suitable securities from emerging market issuers, the Fund may invest up to 20%
of its total assets in the equity securities of non-emerging market companies
contained in the Morgan Stanley Capital International Europe, Australia and Far
East Index (the "EAFE Index").  These companies typically have larger average
market capitalizations than the emerging market companies in which the Fund
generally invests.

Securities of non-U.S. issuers purchased by the Fund may be purchased in
foreign markets, on U.S. registered exchanges or the over-the-counter market.
The Fund will typically invest in equity securities listed on recognized
foreign exchanges, but may also invest in securities traded in over-the-counter
markets.

INTERNATIONAL EQUITY FUND

The International Equity Fund seeks to provide capital appreciation.  There can
be no assurance that the Fund will achieve its investment objective.

Under normal market conditions, the Fund will invest at least 65% of its total
assets in the equity securities of non-U.S. issuers located in at least three
different countries other than the United States.   Any remaining assets will
be invested in U.S. or non-U.S. cash reserves and money market instruments.

Securities of non-U.S. issuers purchased by the Fund may be purchased in
foreign markets, on U.S. registered exchanges or the over-the-counter market.
The Fund will typically invest in equity securities listed on recognized
foreign exchanges, but may also invest in securities traded in over-the-counter
markets.





                                      -19-
<PAGE>   23

GENERAL INVESTMENT POLICIES AND RISK FACTORS
================================================================================

BORROWING
Each Fund may borrow money to meet redemptions or for temporary, emergency
purposes.  No Fund will purchase securities while its borrowings exceed 5% of
its total assets.

CONVERTIBLE SECURITIES
Each Fund may invest in convertible securities.

FORWARD FOREIGN CURRENCY CONTRACTS
The High Yield Bond, International Fixed Income, Emerging Markets Equity and
International Equity Funds may enter into forward foreign currency contracts.

ILLIQUID SECURITIES
Each Fund may invest in illiquid securities, including illiquid restricted
securities, up to 15% of their respective net assets.  However, restricted
securities, including Rule 144A securities and section 4(2) commercial paper,
that meet the criteria established by the Board of Trustees of the Trust will
be considered liquid.  In addition, the Emerging Markets Equity Fund's Money
Managers believe that carefully selected investments in joint ventures,
cooperatives, partnerships, private placements, unlisted securities and other
similar situations (collectively, "special situations") could enhance its
capital appreciation potential.  Investments in special situations may be
illiquid, as determined by the Emerging Markets Equity Fund's Money Manager
based on criteria approved by the Board of Trustees.  To the extent these
investments are deemed illiquid, the Emerging Markets Equity Fund's investment
in them will be consistent with its 15% restriction on investment in illiquid
securities.

INVESTMENT COMPANY SECURITIES AND PASSIVE FOREIGN INVESTMENT COMPANIES
Each Fund may invest up to 10% of its total assets in securities issued by
investment companies, including for the Emerging Markets Equity and
International Equity Funds, investments in securities issued by foreign
investment companies.  Investing in investment companies results in the
layering of expenses.  There are legal limits on the amount of such securities
that may be acquired by a Fund.  Each Fund may invest in the securities of
investment companies that have similar investment objectives and policies to
that Fund.

RISK FACTORS RELATING TO INVESTING IN LOWER RATED SECURITIES
The High Yield Bond and Emerging Markets Equity Funds may invest in lower rated
securities.  Fixed income securities are subject to the risk of an issuer's
ability to meet principal and interest payments on the obligation (credit
risk), and may also be subject to price volatility due to such factors as
interest rate sensitivity, market perception of the creditworthiness of the
issuer and general market liquidity (market risk).  Lower rated or unrated
(i.e., high yield) securities are more likely to react to developments
affecting market and credit risk than are more highly rated securities, which
primarily react to movements in the general level of interest rates.  The
market values of fixed income securities tend to vary inversely with the level
of interest rates. Yields and market values of high yield securities will
fluctuate over time, reflecting not only changing interest rates but the
market's perception of credit quality and the outlook for economic growth.
When economic conditions appear to be deteriorating, medium to lower rated
securities may decline in value due to heightened concern over credit quality,
regardless of prevailing interest rates.  Investors should carefully consider
the relative





                                      -20-
<PAGE>   24

risks of investing in high yield securities and understand that such securities
generally are not meant for short-term investing.

The high yield market is relatively new and its growth paralleled a long period
of economic expansion and an increase in merger, acquisition and leveraged
buyout activity.  Adverse economic developments can disrupt the market for high
yield securities, and severely affect the ability of issuers, especially highly
leveraged issuers, to service their debt obligations or to repay their
obligations upon maturity which may lead to a higher incidence of default on
such securities.  In addition, the secondary market for high yield securities,
which is concentrated in relatively few market makers, may not be as liquid as
the secondary market for more highly rated securities.  As a result, a Fund's
Money Managers could find it more difficult to sell these securities or may be
able to sell the securities only at prices lower than if such securities were
widely traded.  Furthermore, a Fund may experience difficulty in valuing
certain securities at certain times.  Prices realized upon the sale of such
lower rated or unrated securities, under these circumstances, may be less than
the prices used in calculating such Fund's net asset value.

Prices for high yield securities may be affected by legislative and regulatory
developments.  These laws could adversely affect a Fund's net asset value and
investment practices, the secondary market for high yield securities, the
financial condition of issuers of these securities and the value of outstanding
high yield securities.  For example, federal legislation requiring the
divestiture by federally insured savings and loan associations of their
investments in high yield bonds and limiting the deductibility of interest by
certain corporate issuers of high yield bonds adversely affected the market in
recent years.

Lower rated or unrated fixed income obligations also present risks based on
payment expectations.  If an issuer calls the obligations for redemption, a
Fund may have to replace the security with a lower yielding security, resulting
in a decreased return for investors.  If a Fund experiences unexpected net
redemptions, it may be forced to sell its higher rated securities, resulting in
a decline in the overall credit quality of the Fund's investment portfolio and
increasing the exposure of the Fund to the risks of high yield securities.

OBLIGATIONS OF SUPRANATIONAL ENTITIES
The Core Fixed Income, International Fixed Income, Emerging Markets Equity and
International Equity Funds may invest in obligations of supranational entities.

OPTIONS AND FUTURES
Each Fund may purchase or write options (including options on non-U.S. indices
and currencies), futures (including futures on U.S. Treasury obligations and
Eurodollar instruments) and options on futures.  Risks associated with
investing in options and futures may include lack of a liquid secondary market,
trading restrictions which may be imposed by an exchange, government
regulations which may restrict trading, an imperfect correlation between the
prices of securities held by a Fund and the price of an option or future and,
in the case of non-U.S. futures and options, the risks of investing in foreign
markets generally.

PORTFOLIO TURNOVER RATE 
Each Fund's annual portfolio turnover rate will generally not exceed 150%,
except for the Core Fixed Income Fund's portfolio turnover rate which will
generally not exceed 300%.  Such rates, if achieved, will result in higher
transaction costs and may result in additional taxes for shareholders.  See
"Taxes."





                                      -21-
<PAGE>   25

SECURITIES LENDING
Each Fund may lend its fund securities in order to realize additional income.

SECURITIES OF FOREIGN ISSUERS
Each Fund may invest in securities of foreign issuers consistent with its
overall policies, either directly or through American Depository Receipts
("ADRs") and, with respect to the Emerging Markets Equity and International
Equity Funds, Continental Depository Receipts ("CDRs"), European Depository
Receipts ("EDRs") and Global Depository Receipts ("GDRs").

TEMPORARY DEFENSIVE/LIQUIDITY NEEDS
In order to meet liquidity needs, or for temporary defensive purposes, each
Fund may invest up to 100% of its assets in cash and money market securities.

VARIABLE AND FLOATING RATE INSTRUMENTS
Each Fund may purchase instruments that pay interest on a variable or floating
rate basis.

WHEN-ISSUED OR DELAYED-DELIVERY SECURITIES
Each Fund may purchase securities on a when-issued or delayed-delivery basis,
including TBA mortgage-backed securities.

WARRANTS
Each Fund may purchase warrants.

For additional information regarding the Funds' permitted investments, see
"Description of Permitted Investments and Risk Factors" in this Prospectus and
"Description of Permitted Investments" in the Statement of Additional
Information.  For a description of the above ratings, see the "Appendix."

ZERO COUPON, PAY-IN-KIND AND DEFERRED PAYMENT SECURITIES
The Large Cap, Small Cap, Core Fixed Income, High Yield Bond and International
Fixed Income Funds may invest in zero coupon, pay-in-kind and deferred payment
securities.


INVESTMENT LIMITATIONS
================================================================================

The investment objectives and certain of the investment limitations are
fundamental policies of the Funds.  Fundamental policies cannot be changed with
respect to the Trust or a Fund without the consent of the holders of a majority
of the Trust's or that Fund's outstanding shares.

No Fund may:

1.       With respect to 75% of its total assets, (i) purchase securities of
         any issuer (except securities issued or guaranteed by the United
         States Government, its agencies or instrumentalities) if, as a result,
         more than 5% of its total assets would be invested in the securities
         of such issuer; or (ii) acquire more than 10% of the outstanding
         voting securities of any one issuer.  This restriction does not apply
         to the International Fixed Income Fund.





                                      -22-
<PAGE>   26

2.       Purchase any securities which would cause more than 25% of its total
         assets to be invested in the securities of one or more issuers
         conducting their principal business activities in the same industry,
         provided that this limitation does not apply to investments in
         securities issued or guaranteed by the United States Government, its
         agencies or instrumentalities.

For purposes of the industry concentration limitation, specified in paragraph 2
above, (i) utility companies will be divided according to their services, for
example, gas, gas transmission, electric and telephone will each be considered
a separate industry; (ii) financial service companies will be classified
according to end users of their services, for example, automobile finance, bank
finance and diversified finance will each be considered a separate industry;
(iii) supranational agencies will be deemed to be issuers conducting their
principal business activities in the same industry; and (iv) governmental
issuers within a particular country will be deemed to be conducting their
principal business activities in the same industry.

The foregoing percentage limitations will apply at the time of the purchase of
a security.  Additional fundamental and non-fundamental investment limitations
are set forth in the Statement of Additional Information.


PURCHASE AND REDEMPTION OF SHARES
===============================================================================

Shares of each Fund may be purchased or redeemed on days on which the New York
Stock Exchange is open for business (each, a "Business Day").

Shareholders who desire to purchase shares for cash must place their orders
with SFM prior to 4:00 p.m. Eastern time on any Business Day for the order to
be accepted on that Business Day.  Cash investments must be transmitted or
delivered in federal funds to the wire agent on the next Business Day following
the day the order is placed.  The Trust reserves the right to reject a purchase
order when the distributor determines that it is not in the best interest of
the Trust or its shareholders to accept such purchase order.

Purchases will be made in full and fractional shares of a Fund calculated to
three decimal places.  The Trust will send shareholders a statement of shares
owned after each transaction.  The purchase price of shares is the net asset
value next determined after a purchase order is received and accepted by the
Trust. The net asset value per share of each Fund is determined by dividing the
total market value of a Fund's investment and other assets, less any
liabilities, by the total number of outstanding shares of that Fund.  Net asset
value per share is determined daily at the close of business of the New York
Stock Exchange (currently 4:00 p.m. Eastern time) on each Business Day.

The market value of each portfolio security is obtained by SFM from an
independent pricing service.  Securities that have maturities of 60 days or
less at the time of purchase will be valued using the amortized cost method
(described in the Statement of Additional Information).  The pricing service
relies primarily on prices of actual market transactions as well as trader
quotations.  However, the pricing service may use a matrix system to determine
valuations of equity and fixed income securities.  This system considers such
factors as security prices, yields, maturities, call features, ratings and
developments relating to specific securities in arriving at valuations.  The
procedures used by the





                                      -23-
<PAGE>   27

pricing service and its valuations are reviewed by the officers of the Trust
under the general supervision of the Trustees.

Shares of a Fund may be purchased in exchange for securities included in the
Fund subject to SFM's determination that the securities are acceptable.
Securities accepted in an exchange will be valued at the market value.  All
accrued interest and subscription of other rights which are reflected in the
market price of accepted securities at the time of valuation become the
property of the Trust and must be delivered by the Shareholder to the Trust
upon receipt from the issuer.

SFM will not accept securities for a Fund unless (1) such securities are
appropriate for the Fund at the time of the exchange; (2) such securities are
acquired for investment and not for resale; (3) the Shareholder represents and
agrees that all securities offered to the Trust for the Fund are not subject to
any restrictions upon their sale by the Fund under the Securities Act of 1933,
or otherwise; (4) such securities are traded on the American Stock Exchange,
the New York Stock Exchange or on NASDAQ in an unrelated transaction with a
quoted sales price on the same day the exchange valuation is made or, if not
listed on such exchanges or on NASDAQ, have prices available from an
independent pricing service approved by the Trust's Board of Trustees; and (5)
the securities may be acquired under the investment restrictions applicable to
the Fund.

Shareholders who desire to redeem shares of a Fund must place their redemption
orders with SFM prior to 4:00 p.m.  Eastern time on any Business Day. The
redemption price is the net asset value per share of the Fund next determined
after receipt by SFM of the redemption order. Payment on redemption will be
made as promptly as possible and, in any event, within seven days after the
redemption order is received.

The Trust intends to generally make redemptions in cash.  The Trust may,
however, make redemptions in whole or in part by a distribution in kind of
readily marketable securities in lieu of cash.  Shareholders may incur
brokerage costs on the sale of any such securities so received in payment of
redemptions.

Purchase and redemption orders may be placed by telephone.  Neither the Trust
nor SFM will be responsible for any loss, liability, cost or expense for acting
upon wire instructions or upon telephone instructions that it reasonably
believes to be genuine.  The Trust and SFM will each employ reasonable
procedures to confirm that instructions communicated by telephone are genuine,
including requiring a form of personal identification prior to acting upon
instructions received by telephone and recording telephone instructions.

If market conditions are extraordinarily active, or other extraordinary
circumstances exist, and shareholders experience difficulties placing
redemption orders by telephone, shareholders may wish to consider placing their
order by other means.


PERFORMANCE
================================================================================

From time to time, a Fund may advertise yield and total return.  These figures
will be based on historical earnings and are not intended to indicate future
performance.  No representation can be made concerning actual yield or future
returns. The yield of a Fund refers to the annualized income





                                      -24-
<PAGE>   28

generated by an investment in the Fund over a specified 30-day period.  The
yield is calculated by assuming that the same amount of income generated by the
investment during that period is generated in each 30-day period over one year
and is shown as a percentage of the investment.

The total return of a Fund refers to the average compounded rate of return on a
hypothetical investment for designated time periods, assuming that the entire
investment is redeemed at the end of each period and assuming the reinvestment
of all dividend and capital gain distributions.

A Fund may periodically compare its performance to that of other mutual funds
tracked by mutual fund rating services (such as Lipper Analytical), or by
financial and business publications and periodicals, broad groups of comparable
mutual funds, unmanaged indices which may assume investment of dividends but
generally do not reflect deductions for administrative and management costs or
other investment alternatives.  A Fund may quote Morningstar, Inc., a service
that ranks  mutual funds on the basis of risk-adjusted performance.  A Fund may
use long-term performance of these capital markets to demonstrate general
long-term risk versus reward scenarios and could include the value of a
hypothetical investment in any of the capital markets.  A Fund may also quote
financial and business publications and periodicals as they relate to fund
management, investment philosophy and investment techniques.

A Fund may quote various measures of volatility and benchmark correlation in
advertising and may compare these measures to those of other funds.  Measures
of volatility attempt to compare historical share price fluctuations or total
returns to a benchmark while measures of benchmark correlation indicate how
valid a comparative benchmark might be.  Measures of volatility and correlation
are calculated using averages of historical data and cannot be calculated
precisely.


TAXES
================================================================================

The following summary of federal income tax consequences is based on current
tax laws and regulations, which may be changed by legislative, judicial or
administrative action.  No attempt has been made to present a detailed
explanation of the federal, state or local tax treatment of the Funds or their
shareholders.  Accordingly, shareholders are urged to consult their tax
advisers regarding specific questions as to federal, state and local taxes.
State and local tax consequences of an investment in a Fund may differ from the
federal income tax consequences described below.  Additional information
concerning taxes is set forth in the Statement of Additional Information.

TAX STATUS OF THE FUNDS
Each Fund is treated as a separate entity for federal income tax purposes and
is not combined with the Trust's other funds.  The Funds intend to qualify for
the special tax treatment afforded regulated investment companies ("RICs")
under Subchapter M of the Code so as to be relieved of federal income tax on
net investment company taxable income and net capital gains (the excess of net
long-term capital gain over net short-term capital losses) distributed to
shareholders.

TAX STATUS OF DISTRIBUTIONS
Each Fund distributes substantially all of its net investment income (including
net short-term capital gains) to shareholders.  Dividends from a Fund's net
investment income are taxable to its shareholders as ordinary income (whether
received in cash or in additional shares).  Distributions of net capital





                                      -25-
<PAGE>   29

gains are taxable to shareholders as long-term capital gains regardless of how
long the shareholder has held shares.  Dividends and [capital gains]
distributions will not qualify for the corporate dividends-received deduction.
The Funds will provide annual reports to shareholders of the federal income tax
status of all distributions.

Dividends declared by a Fund in October, November or December of any year and
payable to shareholders of record on a date in such a month will be deemed to
have been paid by the Fund and received by the Shareholders on December 31 of
the year declared if paid by the Fund at any time during the following January.

Each Fund intends to make sufficient distributions to avoid liability for the
federal excise tax applicable to RICs.

Investment income received by the Funds from sources within foreign countries
may be subject to foreign income taxes withheld at the source.  To the extent
that a Fund is liable for foreign income taxes so withheld, the Fund intends to
operate so as to meet the requirements of the Code to pass through to the
shareholders credit for foreign income taxes paid.  Although the Funds intend
to meet Code requirements to pass through credit for such taxes, there can be
no assurance that the Funds will be able to do so.

Each sale, exchange or redemption of Fund shares is a taxable transaction to
the shareholder.


GENERAL INFORMATION
================================================================================

TRUSTEES OF THE TRUST
The management and affairs of the Trust are supervised by the Trustees under
the laws of the Commonwealth of Massachusetts.  The Trustees have approved
contracts under which, as described above, certain companies provide essential
management services to the Trust.

VOTING RIGHTS
Each share held entitles the shareholder of record to one vote. The
shareholders of each Fund will vote separately on matters pertaining solely to
that Fund, such as any distribution plan.  As a Massachusetts business trust,
the Trust is not required to hold annual meetings of shareholders, but approval
will be sought for certain changes in the operation of the Trust and for the
election of Trustees under certain circumstances.  In addition, a Trustee may
be removed by the remaining Trustees or by shareholders at a special meeting
called upon written request of shareholders owning at least 10% of the
outstanding shares of the Trust. In the event that such a meeting is requested,
the Trust will provide appropriate assistance and information to the
shareholders requesting the meeting.

REPORTING
The Trust issues an unaudited financial report semi-annually and audited
financial statements annually. The Trust furnishes proxy statements and other
reports to shareholders of record.





                                      -26-
<PAGE>   30

SHAREHOLDER INQUIRIES
Shareholder inquiries should be directed to SEI Financial Management
Corporation, 680 East Swedesford Road, Wayne, Pennsylvania  19087-1658.

DIVIDENDS
Substantially all of the net investment income (exclusive of capital gains) of
each Fund is periodically declared and paid as a dividend.  Dividends currently
are paid periodically for the International Fixed Income, Emerging Markets
Equity and International Equity Funds and currently are paid on a monthly basis
for the Core Fixed Income and High Yield Bond Funds and currently are paid on a
quarterly basis for the Small Cap and Large Cap Funds.  Currently, net capital
gains for all the Funds (the excess of net long-term capital gain over net
short-term capital loss) realized, if any, will be distributed at least
annually.

Shareholders automatically receive all income dividends and capital gains
distributions in additional shares at the net asset value next determined
following the record date, unless the shareholder has elected to take such
payment in cash.  Shareholders may change their election by providing written
notice to SFM at least 15 days prior to the distribution.

Dividends and capital gains of each Fund are paid on a per-share basis. The
value of each share will be reduced by the amount of any such payment. If
shares are purchased shortly before the record date for a dividend or capital
gains distributions, a shareholder will pay the full price for the share and
receive some portion of the price back as a taxable dividend or distribution.

MASTER/FEEDER OPTION
The Trust may in the future seek to achieve any Fund's investment objective by
investing all of that Fund's assets in another investment company having the
same investment objective and substantially the same investment policies and
restrictions as those applicable to that Fund.  It is expected that any such
investment company would be managed by SFM in substantially the same manner as
the existing Fund.  The initial shareholder(s) of each Fund voted to vest such
authority in the sole discretion of the Trustees and such investment may be
made without further approval of the shareholders of the Funds.  However,
shareholders of the Funds will be given at least 30 days' prior notice of any
such investment.  Such investment would be made only if the Trustees determine
it to be in the best interests of a Fund and its shareholders.  In making that
determination the Trustees will consider, among other things, the benefits to
shareholders and/or the opportunity to reduce costs and achieve operational
efficiencies.  Although the Funds believe that the Trustees will not approve an
arrangement that is likely to result in higher costs, no assurance is given
that costs will be materially reduced if this option is implemented.

COUNSEL AND INDEPENDENT ACCOUNTANTS
Morgan, Lewis & Bockius LLP serves as counsel to the Trust.  Coopers & Lybrand
LLP serves as the independent accountants of the Trust.

CUSTODIAN
CoreStates Bank, N.A., Broad and Chestnut Streets, P.O. Box 7618, Philadelphia,
Pennsylvania  19101, acts as wire agent for each of the Funds and custodian for
the assets of the Large Cap, Small Cap, Core Fixed Income and High Yield Bond
Funds.  State Street Bank and Trust Company, 225 Franklin Street, Boston,
Massachusetts 02110, acts as custodian for the assets of the International





                                      -27-
<PAGE>   31

Fixed Income, Emerging Markets Equity and International Equity Funds.
CoreStates Bank, N.A. and State Street Bank and Trust Company (each a
"Custodian," and, together, the "Custodians") hold cash, securities and other
assets of the respective Funds for which they act as custodian as required by
the 1940 Act.


DESCRIPTION OF PERMITTED INVESTMENTS AND RISK FACTORS
================================================================================

The following is a description of the permitted investment practices for the
Funds, and the associated risk factors:

AMERICAN DEPOSITARY RECEIPTS ("ADRs"), EUROPEAN DEPOSITARY RECEIPTS ("EDRs")
and GLOBAL DEPOSITARY RECEIPTS ("GDRs") -- ADRs are securities, typically
issued by a U.S. financial institution (a "depositary"), that evidence
ownership interests in a security or a pool of securities issued by a foreign
issuer and deposited with the depositary.  ADRs include American Depositary
Shares and New York Shares.  EDRs, which are sometimes referred to as
Continental Depositary Receipts ("CDRs"), are securities, typically issued by a
non-U.S. financial institution, that evidence ownership interests in a security
or a pool of securities issued by either a U.S. or foreign issuer.  GDRs are
issued globally and evidence a similar ownership arrangement.  Generally, ADRs
are designed for trading in the U.S. securities market, EDRs are designed for
trading in European securities market and GDRs are designed for trading in
non-U.S. securities markets.  ADRs, EDRs, CDRs and GDRs may be available for
investment through "sponsored" or "unsponsored" facilities.  A sponsored
facility is established jointly by the issuer of the security underlying the
receipt and a depositary, whereas an unsponsored facility may be established by
a depositary without participation by the issuer of the receipt's underlying
security.  Holders of an unsponsored depositary receipt generally bear all the
costs of the unsponsored facility.  The depositary of an unsponsored facility
frequently is under no obligation to distribute shareholder communications
received from the issuer of the deposited security or to pass through to the
holders of the receipts voting rights with respect to the deposited securities.

ASSET-BACKED SECURITIES -- Asset-backed securities are secured by non-mortgage
assets such as company receivables, truck and auto loans, leases and credit
card receivables.  Such securities are generally issued as pass-through
certificates, which represent undivided fractional ownership interests in the
underlying pools of assets.  Such securities also may be debt instruments,
which are also known as collateralized obligations and are generally issued as
the debt of a special purpose entity, such as a trust, organized solely for the
purpose of owning such assets and issuing such debt.  A Fund may invest in
other asset-backed securities that may be created in the future if the Money
Managers determine that they are suitable.

CONVERTIBLE SECURITIES -- Convertible securities are corporate securities that
are exchangeable for a set number of another security at a prestated price.
Convertible securities typically have characteristics similar to both fixed
income and equity securities.  Because of the conversion feature, the market
value of a convertible security tends to move with the market value of the
underlying stock.  The value of a convertible security is also affected by
prevailing interest rates, the credit quality of the issuer, and any call
provisions.





                                      -28-
<PAGE>   32

DEMAND INSTRUMENTS --  Certain instruments may entail a demand feature which
permits the holder to demand payment of the principal amount of the instrument.
Demand instruments include variable rate demand notes.

DERIVATIVES -- Derivatives are investments that derive their value from other
securities, assets or indices.  The following may be considered derivative
securities:  futures, options on futures, options (e.g., puts and calls), swap
agreements, mortgage-backed securities (e.g., CMOs, REMICs, IOs and POs),
when-issued securities and forward commitments, floating and variable rate
securities, convertible securities, "stripped" U.S. Treasury securities (e.g.,
receipts and STRIPs), privately issued stripped securities (e.g., TIGRs, TRs
and CATS).  See elsewhere in this "Description of Permitted Investments and
Risk Factors" for discussions of these various instruments, and see "Investment
Objectives and Policies" for more information about any investment policies and
limitations applicable to their use.

EQUITY SECURITIES --  Equity securities represent ownership interests in a
company or corporation and consist of common stock, preferred stock, warrants
and other rights to acquire such instruments.  Equity securities may be listed
on exchanges or traded in the over-the-counter market.  Investments in common
stocks are subject to market risks which may cause their prices to fluctuate
over time.  The value of convertible securities is also affected by prevailing
interest rates, the credit quality of the issuer and any call provisions.
Changes in the value of fund securities will not necessarily affect cash income
derived from these securities, but will affect a Fund's net asset value.

Investments in the equity securities of small capitalization companies involves
greater risk than is customarily associated with larger, more established
companies due to the greater business risks of small size, limited markets and
financial resources, narrow product lines and the frequent lack of depth of
management.  The securities of small companies are often traded
over-the-counter and may not be traded in volumes typical on a national
securities exchange.  Consequently, the securities of smaller companies may
have limited market stability and may be subject to more abrupt or erratic
market movements than securities of larger, more established growth companies
or the market averages in general.

FIXED INCOME SECURITIES -- Fixed income securities are debt obligations issued
by corporations, municipalities and other borrowers.  The market value of fixed
income investments will generally change in response to interest rate changes
and other factors.  During periods of falling interest rates, the values of
outstanding fixed income securities generally rise.  Conversely, during periods
of rising interest rates, the values of such securities generally decline.
Moreover, while securities with longer maturities tend to produce higher
yields, the prices of longer maturity securities are also subject to greater
market fluctuations as a result of changes in interest rates.  Changes by
recognized agencies in the rating of any fixed income security and in the
ability of an issuer to make payments of interest and principal will also
affect the value of these investments.  Changes in the value of portfolio
securities will not affect cash income derived from these securities, but will
affect a Fund's net asset value.  Please also see other definitions in this
section that describe specific types of fixed income securities in greater
detail, including "Asset-Backed Securities," "Mortgage-Backed Securities,"
"U.S. Government Agencies," "U.S. Treasury Obligations," and "Yankee
Obligations."

FORWARD FOREIGN CURRENCY CONTRACTS -- A forward contract involves an obligation
to purchase or sell a specific currency amount at a future date, agreed upon by
the parties, at a price set





                                      -29-
<PAGE>   33

at the time of the contract.  A Fund may also enter into a contract to sell,
for a fixed amount of U.S. dollars or other appropriate currency, the amount of
foreign currency approximating the value of some or all of the Fund's
securities denominated in such foreign currency.

At the maturity of a forward contract, the Fund may either sell a fund security
and make delivery of the foreign currency, or it may retain the security and
terminate its contractual obligation to deliver the foreign currency by
purchasing an "offsetting" contract with the same currency trader, obligating
it to purchase, on the same maturity date, the same amount of the foreign
currency.  The Fund may realize a gain or loss from currency transactions.

FUTURES CONTRACTS AND OPTIONS ON FUTURES CONTRACTS -- Futures contracts provide
for the future sale by one party and purchase by another party of a specified
amount of a specific security at a specified future time and at a specified
price.  An option on a futures contract gives the purchaser the right, in
exchange for a premium, to assume a position in a futures contract at a
specified exercise price during the term of the option.  A Fund may use futures
contracts and related options for bona fide hedging purposes, to offset changes
in the value of securities held or expected to be acquired or be disposed of,
to minimize fluctuations in foreign currencies, or to gain exposure to a
particular market or instrument.  A Fund will minimize the risk that it will be
unable to close out a futures contract by only entering into futures contracts
which are traded on national futures exchanges.  In addition, a Fund will sell
only covered futures contracts and options on futures contracts.

Stock and bond index futures are futures contracts for various stock and bond
indices that are traded on registered securities exchanges.  A stock or bond
index futures contract obligates the seller to deliver (and the purchaser to
take) an amount of cash equal to a specific dollar amount times the difference
between the value of a specific stock or bond index at the close of the last
trading day of the contract and the price at which the agreement is made.

Stock and bond index futures contracts are bilateral agreements pursuant to
which two parties agree to take or make delivery of an amount of cash equal to
a specified dollar amount times the difference between the stock or bond index
value at the close of trading of the contract and the price at which the
futures contract is originally struck.  No physical delivery of the stocks or
bonds comprising the particular index is made; generally contracts are closed
out prior to the expiration date of the contracts.  No price is paid upon
entering into futures contracts.  Instead, a Fund would be required to deposit
an amount of cash or U.S. Treasury securities known as "initial margin."
Subsequent payments, called "variation margin," to and from the broker, would
be made on a daily basis as the value of the futures position varies (a process
known as "marking to market").  The margin is in the nature of a performance
bond or good-faith deposit on a futures contract.

Eurodollar instruments are U.S. dollar-denominated futures contracts or options
thereon which are linked to the London Interbank Offered Rate (LIBOR), although
foreign currency denominated instruments are available from time to time.
Eurodollar futures contracts enable purchasers to obtain a fixed rate for the
lending of funds and sellers to obtain a fixed rate for borrowings.

There are risks associated with these activities, including the following: (1)
the success of a hedging strategy may depend on an ability to predict movements
in the prices of individual securities, fluctuations in markets and movements
in interest rates, (2) there may be an imperfect or no





                                      -30-
<PAGE>   34

correlation between the changes in market value of the securities held by the
Fund and the prices of futures and options on futures, (3) there may not be a
liquid secondary market for a futures contract or option, (4) trading
restrictions or limitations may be imposed by an exchange, and (5) government
regulations may restrict trading in futures contracts and futures options.

A Fund may enter into futures contracts and options on futures contracts traded
on an exchange regulated by the Commodities Futures Trading Commission
("CFTC"), as long as, to the extent that such transactions are not for "bona
fide hedging purposes," the aggregate initial margin and premiums on such
positions (excluding the amount by which such options are in the money) do not
exceed 5% of a Fund's net assets.  A Fund may buy and sell futures contracts
and related options to manage its exposure to changing interest rates and
securities prices.  Some strategies reduce a Fund's exposure to price
fluctuations, while others tend to increase its market exposure.  Futures and
options on futures can be volatile instruments and involve certain risks that
could negatively impact a Fund's return.

In order to avoid leveraging and related risks, when a Fund purchases futures
contracts, it will collateralize its position by depositing an amount of cash
or liquid high-grade debt securities, equal to the market value of the futures
positions held, less margin deposits, in a segregated account its custodian.
Collateral equal to the current market value of the futures position will be
marked to market on a daily basis.

ILLIQUID SECURITIES -- Illiquid securities are securities that cannot be
disposed of within seven business days at approximately the price at which they
are being carried on the Fund's books.  Illiquid securities include demand
instruments with a demand notice period exceeding seven days, securities for
which there is no secondary market, and repurchase agreements with durations
over 7 days in length.

INVESTMENT COMPANIES -- Because of restrictions on direct investment by U.S.
entities in certain countries, investment in other investment companies may be
the most practical or only manner in which an international and global fund can
invest in the securities markets of those countries.  A Fund does not intend to
invest in other investment companies unless, in the judgment of its Money
Managers, the potential benefits of such investments exceed the associated
costs relative to the benefits and costs associated with direct investments in
the underlying securities.

Investments in closed-end investment companies may involve the payment of
substantial premiums above the net asset value of such issuers' fund
securities, and are subject to limitations under the 1940 Act.  As a
shareholder in an investment company, a Fund would bear its ratable share of
that investment company's expenses, including its advisory and administration
fees.

MONEY MARKET SECURITIES -- Money market securities are high-quality, short-term
debt instruments.  They consist of: (i) bankers' acceptances, certificates of
deposits, notes and time deposits of highly-rated U.S. and foreign banks; (ii)
U.S. Treasury obligations and obligations issued or guaranteed by the agencies
and instrumentalities of the U.S. Government; (iii) high-quality commercial
paper issued by U.S. and foreign corporations; (iv) debt obligations with a
maturity of one year or less issued by corporations with outstanding
high-quality commercial paper; (v) repurchase agreements involving any of the
foregoing obligations entered into with highly-rated banks and broker-dealers;
and (vi) foreign government obligations.





                                      -31-
<PAGE>   35

MORTGAGE-BACKED SECURITIES -- Mortgage-backed securities are instruments that
entitle the holder to a share of all interest and principal payments from
mortgages underlying the security.  The mortgages backing these securities
include conventional fifteen and thirty-year fixed-rate mortgages, graduated
payment mortgages, adjustable rate mortgages and balloon mortgages.  During
periods of declining interest rates, prepayment of mortgages underlying
mortgage-backed securities can be expected to accelerate.  Prepayment of
mortgages which underlie securities purchased at a premium often results in
capital losses, while prepayment of mortgages purchased at a discount often
results in capital gains.  Because of these unpredictable prepayment
characteristics, it is often not possible to predict accurately the average
life or realized yield of a particular issue.

Government Pass-Through Securities:  These are securities that are issued or
guaranteed by a U.S. Government agency representing an interest in a pool of
mortgage loans.  The primary issuers or guarantors of these mortgage-backed
securities are the Government National Mortgage Association ("GNMA"), the
Federal National Mortgage Association ("FNMA") and the Federal Home Loan
Mortgage Company ("FHLMC").  FNMA and FHLMC obligations are not backed by the
full faith and credit of the U.S. Government as GNMA certificates are, but FNMA
and FHLMC securities are supported by the instrumentalities' right to borrow
from the U.S. Treasury.  GNMA, FNMA and FHLMC each guarantees timely
distributions of interest to certificate holders.  GNMA and FNMA also each
guarantees timely distributions of scheduled principal.

Private Pass-Through Securities:  These are mortgage-backed securities issued
by a non-governmental entity, such as a trust. These securities include
collateralized mortgage obligations ("CMOs") and real estate mortgage
investment conduits ("REMICs") that are rated in one of the top two rating
categories.  While they are generally structured with one or more types of
credit enhancement, private pass-through securities typically lack a guarantee
by an entity having the credit status of a governmental agency or
instrumentality.

Commercial Mortgage-Backed Securities ("CMBS"):  CMBS are generally multi-class
or pass-through securities backed by a mortgage loan or a pool of mortgage
loans secured by commercial property, such as industrial and warehouse
properties, office buildings, retail space and shopping malls, multifamily
properties and cooperative apartments.  The commercial mortgage loans that
underlie CMBS have certain distinct characteristics.  Commercial mortgage loans
are generally not amortizing or not fully amortizing.  That is, at their
maturity date, repayment of the remaining principal balance or "balloon" is due
and is repaid through the attainment of an additional loan of sale of the
property.  Unlike most single family residential mortgages, commercial real
estate property loans often contain provisions which substantially reduce the
likelihood that such securities will be prepaid.  The provisions generally
impose significant prepayment penalties on loans and, in some cases there may
be prohibitions on principal prepayments for several years following
origination.

Collateralized Mortgage Obligations ("CMOs"):  CMOs are debt obligations or
multiclass pass-through certificates issued by agencies or instrumentalities of
the U.S. Government or by private originators or investors in mortgage loans.
In a CMO, series of bonds or certificates are usually issued in multiple
classes.  Principal and interest paid on the underlying mortgage assets may be
allocated among the several classes of a series of a CMO in a variety of ways.
Principal payments on the underlying mortgage assets may cause CMOs to be
retired substantially earlier then their stated maturities or final
distribution dates, resulting in a loss of all or part of any premium paid.





                                      -32-
<PAGE>   36

REMICs:  A REMIC is a CMO that qualifies for special tax treatment under the
Code and invests in certain mortgages principally secured by interests in real
property.  Investors may purchase beneficial interests in REMICs, which are
known as "regular" interests, or "residual" interests.  Guaranteed REMIC
pass-through certificates ("REMIC Certificates") issued by FNMA or FHLMC
represent beneficial ownership interests in a REMIC trust consisting
principally of mortgage loans or FNMA, FHLMC or GNMA-guaranteed mortgage
pass-through certificates.  For FHLMC REMIC Certificates, FHLMC guarantees the
timely payment of interest, and also guarantees the payment of principal as
payments are required to be made on the underlying mortgage participation
certificates.

Stripped Mortgage-Backed Securities ("SMBs"):  SMBs are usually structured with
two classes that receive specified proportions of the monthly interest and
principal payments from a pool of mortgage securities.  One class may receive
all of the interest payments and is thus termed an interest-only class ("IO"),
while the other class may receive all of the principal payments and is thus
termed the principal-only class ("PO").  The value of IOs tends to increase as
rates rise and decrease as rates fall; the opposite is true of POs.  SMBs are
extremely sensitive to changes in interest rates because of the impact thereon
of prepayment of principal on the underlying mortgage securities can experience
wide swings in value in response to changes in interest rates and associated
mortgage prepayment rates.  During times when interest rates are experiencing
fluctuations, such securities can be difficult to price on a consistent basis.
The market for SMBs is not as fully developed as other markets; SMBs therefore
may be illiquid.

MORTGAGE DOLLAR ROLLS -- Mortgage "dollar rolls" are transactions in which
mortgage-backed securities are sold for delivery in the current month and the
seller simultaneously contracts to repurchase substantially similar securities
on a specified future date.  Any difference between the sale price and the
purchase price is netted against the interest income foregone on the securities
sold to arrive at an implied borrowing rate.  Alternatively, the sale and
purchase transactions can be executed at the same price, with the Fund being
paid a fee as consideration for entering into the commitment to purchase.
Mortgage dollar rolls may be renewed prior to cash settlement and initially may
involve only a firm commitment agreement by the Fund to buy a security.  If the
broker-dealer to whom the Fund sells the security becomes insolvent, the Fund's
right to repurchase the security may be restricted.  Other risks involved in
entering into mortgage dollar rolls include the risk that the value of the
security may change adversely over the term of the mortgage dollar roll and
that the security the Fund is required to repurchase may be worth less than the
security that the Fund originally held.

To avoid any leveraging concerns, the Fund will place U.S. Government or other
liquid, high grade debt securities in a segregated account in an amount
sufficient to cover its repurchase obligation.

OBLIGATIONS OF SUPRANATIONAL ENTITIES -- Supranational entities are entities
established through the joint participation of several governments, and include
the Asian Development Bank, the Inter-American Development Bank, International
Bank for Reconstruction and Development (World Bank), African Development Bank,
European Economic Community, European Investment Bank and the Nordic Investment
Bank.  The governmental members, or "stockholders," usually make initial
capital contributions to the supranational entity and, in many cases, are
committed to make additional capital contributions if the supranational entity
is unable to repay its borrowings.

OPTIONS --  A put option gives the purchaser of the option the right to sell,
and the writer of the option the obligation to buy, the underlying commodity or
index at any time during the option period.





                                      -33-
<PAGE>   37

A call option gives the purchaser of the option the right to buy, and the
writer of the option the obligation to sell, the underlying security at any
time during the option period.  The initial purchase (sale) of an option
contract is an "opening transaction."  In order to close out an option
position, a Fund may enter into a "closing transaction," which is simply the
sale (purchase) of an option contract on the same security with the same
exercise price and expiration date as the option contract originally opened.
If a Fund is unable to effect a closing purchase transaction with respect to an
option it has written, it will not be able to sell the underlying security
until the option expires or the Fund delivers the security upon exercise.

A Fund may purchase put and call options on securities to protect against a
decline in the market value of the securities in its portfolio or to anticipate
an increase in the market value of securities that the Fund may seek to
purchase in the future.  A Fund purchasing put and call options pays a premium
therefor.  The premium paid to the writer is the consideration for undertaking
the obligations under the option contract.  If price movements in the
underlying securities are such that exercise of the options would not be
profitable for the Fund, loss of the premium paid may be offset by an increase
in the value of the Fund's securities or by a decrease in the cost of
acquisition of securities by the Fund.

A Fund may write covered call options on securities as a means of increasing
the yield on its fund and as a means of providing limited protection against
decreases in its market value.  When a Fund writes an option, if the underlying
securities do not increase or decrease to a price level that would make the
exercise of the option profitable to the holder thereof, the option generally
will expire without being exercised and the Fund will realize as profit the
premium received for such option.  When a call option of which a Fund is the
writer is exercised, the Fund will be required to sell the underlying
securities to the option holder at the strike price, and will not participate
in any increase in the price of such securities above the strike price.  When a
put option of which a Fund is the writer is exercised, the Fund will be
required to purchase the underlying securities at a price in excess of the
market value of such securities.

A Fund that may invest in the securities of a foreign issuer may also purchase
and write put and call options on foreign currencies to manage its exposure to
exchange rates.  Call options on foreign currency written by a Fund will be
"covered," which means that the Fund will own an equal amount of the underlying
foreign currency.  With respect to put options on foreign currency written by a
Fund, the Fund will establish a segregated account with its custodian bank
consisting of cash or liquid high-grade debt securities in an amount equal to
the amount the Fund would be required to pay upon exercise of the put.

Additionally, a Fund may purchase and write put and call options on indices and
enter into related closing transactions.  Options on an index give the holder
the right to receive, upon exercise of the option, an amount of cash if the
closing level of the underlying index is greater than (or less than, in the
case of puts) the exercise price of the option.  Alternatively, a Fund may
choose to terminate an option position by entering into a closing transaction.
All settlements are in cash, and gain or loss depends on price movements in the
particular market represented by the index generally, rather than the price
movements in individual securities.  All options written on indices must be
covered.  When a Fund writes an option on an index, it will establish a
segregated account containing cash or liquid high-grade debt securities with
its Custodian in an amount at least equal to the market value of the option,
and will maintain the account while the option is open or will otherwise cover
the transaction.  This amount of cash is equal to the difference between the
closing price of the index and the exercise





                                      -34-
<PAGE>   38
price of the option, expressed in dollars multiplied by a specified number.
Thus, unlike options on individual securities, the ability of a Fund to enter
into closing transactions depends upon the existence of a liquid secondary
market for such transactions.

A Fund may purchase and write options on an exchange or over-the-counter.
Over-the-counter options ("OTC options") differ from exchange-traded options in
several respects.  They are transacted directly with dealers and not with a
clearing corporation, and therefore entail the risk of non-performance by the
dealer.  OTC options are available for a greater variety of securities and for
a wider range of expiration dates and exercise prices than are available for
exchange-traded options.  Because OTC options are not traded on an exchange,
pricing is done normally by reference to information from a market maker.  It
is the position of the SEC that OTC options are generally illiquid.

Risk Factors.  Risks associated with options transactions include:  (1) the
success of a hedging strategy may depend on an ability to predict movements in
the prices of individual securities, fluctuations in markets and movements in
interest rates; (2) there may be an imperfect correlation between the movement
in prices of options and the securities underlying them; (3) there may not be a
liquid secondary market for options; and (4) while a Fund will receive a
premium when it writes covered call options, it may not participate fully in a
rise in the market value of the underlying security.

PRIVATIZATIONS -- Privatizations are foreign government programs for selling
all or part of the interests in government owned or controlled enterprises.
The ability of a U.S. entity to participate in privatizations in certain
foreign countries may be limited by local law, or the terms on which the Fund
may be permitted to participate may be less advantageous than those applicable
for local investors.  There can be no assurance that foreign governments will
continue to sell their interests in companies currently owned or controlled by
them or that privatization programs will be successful.

PAY-IN-KIND BONDS -- Investments of a Fund in fixed income securities may
include pay-in-kind bonds.  These are securities which pay interest in either
cash or additional securities, at the issuer's option, for a specified period.
Pay-in-kind bonds, like zero coupon bonds, are designed to give an issuer
flexibility in managing cash flow.  Pay-in-kind bonds are expected to reflect
the market value of the underlying debt plus an amount representing accrued
interest since the last payment.  Pay-in-kind bonds are usually less volatile
than zero coupon bonds, but more volatile than cash pay securities.

RECEIPTS --  Receipts are sold as zero coupon securities which means that they
are sold at a substantial discount and redeemed at face value at their maturity
date without interim cash payments of interest or principal.  This discount is
accreted over the life of the security, and such accretion will constitute the
income earned on the security for both accounting and tax purposes.  Because of
these features, such securities may be subject to greater interest rate
volatility than interest paying fixed income securities.  See also "Taxes."

REITs -- REITs are trusts that invest primarily in commercial real estate or
real estate-related loans.  The value of interests in REITs may be affected by
the value of the property owned or the quality of the mortgages held by the
trust.

REPURCHASE AGREEMENTS -- arrangements by which a Fund obtains a security and
simultaneously commits to return the security to the seller at an agreed upon
price (including principal and interest) on an agreed upon date within a number
of days from the date of purchase.  A Custodian





                                      -35-
<PAGE>   39

or its agent will hold the security as collateral for the repurchase agreement.
Collateral must be maintained at a value at least equal to 102% of the purchase
price.  A Fund bears a risk of loss in the event the other party defaults on
its obligations and the Fund is delayed or prevented from its right to dispose
of the collateral securities or if the Fund realizes a loss on the sale of the
collateral securities.  A Fund's Money Managers will enter into repurchase
agreements on behalf of the Fund only with financial institutions deemed to
present minimal risk of bankruptcy during the term of the agreement based on
guidelines established and periodically reviewed by the Trustees.  Repurchase
agreements are considered loans under the 1940 Act.

SECURITIES LENDING -- In order to generate additional income, a Fund may lend
securities that it owns pursuant to agreements requiring that the loan be
continuously secured by collateral consisting of cash, securities of the U.S.
Government or its agencies equal to at least 100% of the market value of the
securities lent.  A Fund continues to receive interest on the securities lent
while simultaneously earning interest on the investment of cash collateral.
Collateral is marked to market daily.  There may be risks of delay in recovery
of the securities or even loss of rights in the collateral should the borrower
of the securities fail financially or become insolvent.

SECURITIES OF FOREIGN ISSUERS -- There are certain risks connected with
investing in foreign securities.  These include risks of adverse political and
economic developments (including possible governmental seizure or
nationalization of assets), the possible imposition of exchange controls or
other governmental restrictions, less uniformity in accounting and reporting
requirements, the possibility that there will be less information on such
securities and their issuers available to the public, the difficulty of
obtaining or enforcing court judgments abroad, restrictions on foreign
investments in other jurisdictions, difficulties in effecting repatriation of
capital invested abroad and difficulties in transaction settlements and the
effect of delay on shareholder equity.  Foreign securities may be subject to
foreign taxes, and may be less marketable than comparable U.S. securities.  The
value of a Fund's investments denominated in foreign currencies will depend on
the relative strengths of those currencies and the U.S. dollars, and a Fund may
be affected favorably or unfavorably by changes in the exchange rates or
exchange control regulations between foreign currencies and the U.S. dollar.
Changes in foreign currency exchange rates also may affect the value of
dividends and interest earned, gains and losses realized on the sale of
securities and net investment income and gains if any, to be distributed to
shareholders by a Fund.  Furthermore, emerging market countries may have less
stable political environments than more developed countries.  Also it may be
more difficult to obtain a judgment in a court outside the United States.

SHORT SALES -- Selling securities short involves selling securities the Fund
does not own (but has borrowed) in anticipation of a decline in the market
price of such securities.  To deliver the securities to the buyer, the seller
must arrange through a broker to borrow the securities and, in so doing, the
seller becomes obligated to replace the securities borrowed at their market
price at the time of replacement.  In a short sale, the proceeds the seller
receives from the sale are retained by a broker until the seller replaces the
borrowed securities.  The seller may have to pay a premium to borrow the
securities and must pay any dividends or interest payable on the securities
until they are replaced.

A Fund may only sell securities short "against the box."  A short sale is
"against the box" if, at all times during which the short position is open, the
Fund owns at least an equal amount of the securities or securities convertible
into, or exchangeable without further consideration for, securities of the same
issue as the securities that are sold short.





                                      -36-
<PAGE>   40
The Fund may also maintain "short" positions in forward currency exchange
transactions, which involve the Fund's agreement to exchange currency that it
does not own at that time for another currency at a future date and specified
price in anticipation of a decline in the value of the currency sold short
relative to the currency that the Fund has contracted to receive in the
exchange.  To ensure that any short position of the Fund is not used to achieve
leverage, the Fund establishes with its Custodian a segregated account
consisting of cash or liquid, high grade debt securities equal to the
fluctuating market value of the currency as to which any short position is
being maintained.

SWAPS, CAPS, FLOORS AND COLLARS -- Interest rate swaps, mortgage swaps,
currency swaps and other types of swap agreements such as caps, floors and
collars are designed to permit the purchaser to preserve a return or spread on
a particular investment or portion of its portfolio, and to protect against any
increase in the price of securities a Fund anticipates purchasing at a later
date.  In a typical interest rate swap, one party agrees to make regular
payments equal to a floating interest rate times a "notional principal amount,"
in return for payments equal to a fixed rate times the same amount, for a
specific period of time.  Swaps may also depend on other prices or rates, such
as the value of an index or mortgage prepayment rates.

In a typical cap or floor agreement, one party agrees to make payments only
under specified circumstances, usually in return for payment of a fee by the
other party.  Swap agreements will tend to shift a Fund's investment exposure
from one type of investment to another.  Depending on how they are used, swap
agreements may increase or decrease the overall volatility of the Fund's
investments and their share price or yield.

U.S. GOVERNMENT AGENCY SECURITIES -- Obligations issued or guaranteed by
agencies of the U.S. Government, including, among others, the Federal Farm
Credit Bank, the Federal Housing Administration and the Small Business
Administration, and obligations issued or guaranteed by instrumentalities of
the U.S. Government, including, among others, the FHLMC, the Federal Land Banks
and the U.S. Postal Service.  Some of these securities are supported by the
full faith and credit of the U.S. Treasury (e.g., GNMA securities), others are
supported by the right of the issuer to borrow from the Treasury (e.g., Federal
Farm Credit Bank securities), while still others are supported only by the
credit of the instrumentality (e.g., FNMA securities).  Guarantees of principal
by agencies or instrumentalities of the U.S. Government may be a guarantee of
payment at the maturity of the obligation so that in the event of a default
prior to maturity there might not be a market and thus no means of realizing on
the obligation prior to maturity.  Guarantees as to the timely payment of
principal and interest do not extend to the value or yield of these securities
or to the value of a Fund's shares.

U.S. TREASURY OBLIGATIONS -- U.S. Treasury obligations consist of bills, notes
and bonds issued by the U.S. Treasury as well as separately traded interest and
principal component parts of such obligations that are transferable through the
Federal book-entry Principal Securities ("STRIPS").

U.S. TREASURY RECEIPTS -- U.S. Treasury receipts are interests in separately
traded interest and principal component parts of U.S. Treasury obligations that
are issued by banks or brokerage firms and are created by depositing U.S.
Treasury notes and obligations into a special account at a custodian bank.  The
custodian holds the interest and principal payments for the benefit of the
registered owners of the certificates of receipts.  The custodian arranges for
the issuance of the certificates or receipts evidencing ownership and maintains
the register.  Receipts include "Treasury Receipts" ("TRs"),





                                      -37-
<PAGE>   41

"Treasury Investment Growth Receipts" ("TIGRs"), "Liquid Yield Option Notes"
("LYONs") and "Certificates of Accrual on Treasury Securities" ("CATS").
TIGRs, LYONS and CATS are interests in private proprietary accounts while TRs
and STRIPS are interest in accounts sponsored by the U.S. Treasury.

VARIABLE AND FLOATING RATE INSTRUMENTS -- Certain obligations may carry
variable or floating rates of interest, and may involve a conditional or
unconditional demand feature.  Such instruments bear interest at rates that are
not fixed, but which vary with changes in specified market rates or indices.
The interest rates on these securities may be reset daily, weekly, quarterly or
some other reset period, and may have a floor or ceiling on interest rate
changes.  There is a risk that the current interest rate on such obligations
may not accurately reflect existing market interest rates.  A demand instrument
with a demand notice exceeding seven days may be considered illiquid if there
is no secondary market for such security.

WARRANTS -- Warrants are instruments giving holders the right, but not the
obligation, to buy equity or fixed income securities of a company at a given
price during a specified period.

WHEN-ISSUED AND DELAYED DELIVERY SECURITIES, INCLUDING TBA MORTGAGE-BACKED
SECURITIES -- When-issued or delayed delivery basis transactions involve the
purchase of an instrument with payment and delivery taking place in the future.
Delivery of and payment for these securities may occur a month or more after
the date of the purchase commitment.  A Fund will maintain with its Custodian a
separate account with liquid high-grade debt securities or cash in an amount at
least equal to these commitments.  The interest rate realized on these
securities is fixed as of the purchase date, and no interest accrues to a Fund
before settlement.  These securities are subject to market fluctuation due to
changes in market interest rates, and it is possible that the market value at
the time of settlement could be higher or lower than the purchase price if the
general level of interest rates has changed.  Although a Fund generally
purchases securities on a when-issued or forward commitment basis with the
intention of actually acquiring securities, a Fund may dispose of a when-issued
security or forward commitment prior to settlement if it deems it appropriate
to do so.  When investing in when-issued securities, a Fund will not accrue
income until delivery of the securities and will invest in such securities only
for purposes of actually acquiring the securities and not for purposes of
leveraging.

One form of when-issued or delayed-delivery security that a Portfolio may
purchase is a "to be announced" ("TBA") mortgage-backed security.  A TBA
mortgage-backed security transaction arises when a mortgage-backed security,
such as a GNMA pass-through security, is purchased or sold with specific pools
that will constitute that GNMA pass-through security to be announced on a
future settlement date.

YANKEE OBLIGATIONS -- Yankee obligations ("Yankees") are U.S.
dollar-denominated instruments of foreign issuers who either register with the
SEC or issue under Rule 144A under the Securities Act of 1933, as amended.
These obligations consist of debt securities (including preferred or preference
stock of non-governmental issuers), certificates of deposit, fixed time
deposits and bankers' acceptances issued by foreign banks, and debt obligations
of foreign governments or their subdivisions, agencies and instrumentalities,
international agencies and supranational entities.  Some securities issued by
foreign governments or their subdivisions, agencies and instrumentalities may
not be backed by the full faith and credit of the foreign government.





                                      -38-
<PAGE>   42


Investing in the securities of issuers based in any foreign country involves
special risks and considerations not typically associated with investing in
U.S. companies.  These include risks resulting from differences in accounting,
auditing and financial reporting standards, lower liquidity than U.S. fixed
income or debt securities, the possibility of nationalization, expropriation or
confiscatory taxation; adverse changes in investment or exchange control
regulations and political instability.  There may be less publicly available
information concerning foreign issuers of securities held by the Fund than is
available concerning U.S. issuers.  Purchases and sales of foreign securities
and dividends and interest payable on those securities may be subject to
foreign taxes and taxes may be withheld from dividend and interest payments on
those securities.  Foreign securities often trade with less frequency and
volume than domestic securities and therefore may exhibit greater price
volatility and a greater risk of liquidity.

The Yankee obligations selected for a Fund will adhere to the same quality
standards as those utilized for the selection of domestic debt obligations.

ZERO COUPON, PAY-IN-KIND AND DEFERRED PAYMENT SECURITIES -- Zero coupon
securities are securities that are sold at a discount to par value, and
securities on which interest payments are not made during the life of the
security.  Upon maturity, the holder is entitled to receive the par value of
the security.  While interest payments are not made on such securities, holders
of such securities are deemed to have received "phantom income" annually.
Because a Fund will distribute its "phantom income" to shareholders, to the
extent that shareholders elect to receive dividends in cash rather than
reinvesting such dividends in additional shares, the Fund will have fewer
assets with which to purchase income producing securities.  Alternatively,
shareholders may have to redeem shares to pay tax on this "phantom income." In
either case, a Fund may have to dispose of its fund securities under
disadvantageous circumstances to generate cash, or may have to leverage itself
by borrowing cash to satisfy distribution requirements.  A Fund accrues income
with respect to the securities prior to the receipt of cash payments.
Pay-in-kind securities are securities that have interest payable by delivery of
additional securities.  Upon maturity, the holder is entitled to receive the
aggregate par value of the securities.  Deferred payment securities are
securities that remain zero coupon securities until a predetermined date, at
which time the stated coupon rate becomes effective and interest becomes
payable at regular intervals.  Zero coupon, pay-in-kind and deferred payment
securities may be subject to greater fluctuation in value and lesser liquidity
in the event of adverse market conditions than comparably rated securities
paying cash interest at regular interest payment periods.

Additional information on permitted investments and risk factors can be found
in the Statement of Additional Information.





                                      -39-
<PAGE>   43

                                    APPENDIX

                     DESCRIPTION OF CORPORATE BOND RATINGS


DESCRIPTION OF MOODY'S LONG-TERM RATINGS

Aaa  Bonds which are rated Aaa are judged to be of the best quality.  They
carry the smallest degree of investment risk and are generally referred to as
"gilt edged."  Interest payments are protected by a large or by an
exceptionally stable margin and principal is secure.  While the various
protective elements are likely to change, such changes as can be visualized are
most unlikely to impair the fundamentally strong position of such issues.

Aa  Bonds which are rated Aa are judged to be of high quality by all standards.
Together with the Aaa group they comprise what are generally known as
high-grade bonds.  They are rated lower than the best bonds because margins of
protection may not be as large as in Aaa securities or fluctuation of
protective elements may be of greater amplitude or there may be other elements
present which make the long-term risk appear somewhat larger than the Aaa
securities.

A  Bonds which are rated A possess many favorable investment attributes and are
to be considered as upper-medium grade obligations.  Factors giving security to
principal and interest are considered adequate, but elements may be present
which suggest a susceptibility to impairment some time in the future.

Baa  Bonds which are rated Baa are considered as medium-grade obligations
(i.e., they are neither highly protected nor poorly secured).  Interest
payments and principal security appear adequate for the present but certain
protective elements may be  lacking or may be characteristically unreliable
over any great length of time.  Such bonds lack outstanding investment
characteristics and in fact have speculative characteristics as well.

Ba  Bonds which are rated Ba are judged to have speculative elements; their
future cannot be considered as well-assured.  Often the protection of interest
and principal payments may be very moderate and thereby not well safeguarded
during both good and bad times over the future.  Uncertainty of position
characterizes bonds in this class.

B  Bonds which are rated B generally lack characteristics of the desirable
investment.  Assurance of interest and principal payments or of maintenance of
other terms of the contract over any long period of time may be small.

Caa  Bonds which are rated Caa are of poor standing.  Such issues may be in
default or there may be present elements of danger with respect to principal or
interest.

Ca  Bonds which are rated Ca represent obligations which are speculative in a
high degree.  Such issues are often in default or have other marked
shortcomings.

C  Bonds which are rated C are the lowest rated class of bonds, and issues so
rated can be regarded as having extremely poor prospects of ever attaining any
real investment standing.





                                      A-1
<PAGE>   44


Moody's bond ratings, where specified, are applied to senior bank obligations
and insurance company senior policyholder and claims obligations with an
original maturity in excess of one year.  Obligations relying upon support
mechanisms such as letters-of-credit and bonds of indemnity are excluded unless
explicitly rated.

Obligations of a branch of a bank are considered to be domiciled in the country
in which the branch is located.  Unless noted as an exception, Moody's rating
on a bank's ability to repay senior obligations extends only to branches
located in countries which carry a Moody's sovereign rating.  Such branch
obligations are rated at the lower of the bank's rating or Moody's sovereign
rating for the bank deposits for the country in which the branch is located.

When the currency in which an obligation is denominated is not the same as the
currency of the country in which the obligation is domiciled, Moody's ratings
do not incorporate an opinion as to whether payment of the obligation will be
affected by the actions of the government controlling the currency of
denomination.  In addition, risk associated with bilateral conflicts between an
investor's home country and either the issuer's home country or the country
where an issuer branch is located are not incorporated into Moody's ratings.

Moody's makes no representation that rated bank obligations or insurance
company obligations are exempt from registration under the U.S. Securities Act
of 1933 or issued in conformity with any other applicable law or regulation.
Nor does Moody's represent that any specific bank or insurance company
obligation is legally enforceable or is a valid senior obligation of a rated
issuer.

Moody's ratings are opinions, not recommendations to buy or sell, and their
accuracy is not guaranteed.  A rating should be weighed solely as one factor in
an investment decision and you should make your own study and evaluation of any
issuer whose securities or debt obligations you consider buying or selling.

Note: Moody's applies numerical modifiers, 1, 2 and 3 in each generic rating
classification from Aa through B in its corporate bond rating system.  The
modifier 1 indicates that the security ranks in the higher end of its generic
rating category; the modifier 2 indicates a mid-range ranking; and the modifier
3 indicates that the issue ranks in the lower end of its generic rating
category.

DESCRIPTION OF STANDARD & POOR'S LONG-TERM RATINGS

INVESTMENT GRADE

AAA      Debt rated 'AAA' has the highest rating assigned by S&P.  Capacity to
         pay interest and repay principal is extremely strong.

AA       Debt rated 'AA' has a very strong capacity to pay interest and repay
         principal and differs from the highest rated debt only in small
         degree.

A        Debt rated 'A' has a strong capacity to pay interest and repay
         principal, although it is somewhat more susceptible to adverse effects
         of changes in circumstances and economic conditions than debt in
         higher-rated categories.





                                      A-2
<PAGE>   45

BBB      Debt rated 'BBB' is regarded as having an adequate capacity to pay
         interest and repay principal.  Whereas it normally exhibits adequate
         protection parameters, adverse economic conditions or changing
         circumstances are more likely to lead to a weakened capacity to pay
         interest and repay principal for debt in this category than in higher
         rated categories.

SPECULATIVE GRADE

         Debt rated 'BB', 'B', 'CCC', 'CC', and 'C' is regarded as having
predominantly speculative characteristics with respect to capacity to pay
interest and repay principal.  'BB' indicates the least degree of speculation
and 'C' the highest degree of speculation.  While such debt will likely have
some quality and protective characteristics, these are outweighed by large
uncertainties or major risk exposures to adverse conditions.

BB       Debt rated 'BB' has less near-term vulnerability to default than other
         speculative grade debt.  However, it faces major ongoing uncertainties
         or exposure to adverse business, financial, or economic conditions
         that could lead to inadequate capacity to meet timely interest and
         principal payments.  The 'BB' rating category is also used for debt
         subordinated to senior debt that is assigned an actual or implied
         'BBB-' rating.

B        Debt rate 'B' has greater vulnerability to default but presently has
         the capacity to meet interest payments and principal repayments.
         Adverse business, financial, or economic conditions would likely
         impair capacity or willingness to pay interest and repay principal.
         The 'B' rating category also is used for debt subordinated to senior
         debt that is assigned an actual or implied 'BB' or 'BB-' rating.

CCC      Debt rated 'CCC' has a current identifiable vulnerability to default,
         and is dependent on favorable business, financial, and economic
         conditions to meet timely payment of interest and repayment of
         principal.  In the event of adverse business, financial, or economic
         conditions, it is not likely to have the capacity to pay interest and
         repay principal.  The 'CCC' rating category also is used for debt
         subordinated to senior debt that is assigned an actual or implied 'B'
         or 'B-' rating.

CC       The rating 'CC' is typically applied to debt subordinated to senior
         debt which is assigned an actual or implied 'CCC' rating.

C        The rating 'C' is typically applied to debt subordinated to senior
         debt which is assigned an actual or implied 'CCC-' debt rating.  The
         'C' rating may be used to cover a situation where a bankruptcy
         petition has been filed, but debt service payments are continued.

CI       Debt rated 'CI' is reserved for income bonds on which no interest is
         being paid.

D        Debt is rated 'D' when the issue is in payment default, or the obligor
         has filed for bankruptcy.  The 'D' rating is used when interest or
         principal payments are not made on the date due, even if the
         applicable grace period has not expired, unless S&P believes that such
         payments will be made during such grace period.





                                      A-3
<PAGE>   46
         Plus (+) or minus (-): The ratings from 'AA' to 'CCC' may be modified
by the addition of a plus or minus sign to show relative standing within the
major rating categories.

DESCRIPTION OF DUFF & PHELPS' LONG-TERM DEBT RATINGS

AAA      Highest credit quality.  The risk factors are negligible, being only
         slightly more than for risk-free U.S. Treasury debt.

AA+      High credit quality.  Protection factors are strong.  Risk is modest
AA-      but may vary slightly from time to time because of economic
         conditions.

A+       Protection factors are average but adequate.  However, risk factors
A-       are more variable and greater in periods of economic stress.

BBB+     Below average protection factors but still considered sufficient for
BBB-     prudent investment.  Considerable variability in risk during economic
         cycles.

BB+      Below investment grade but deemed likely to meet obligations when due.
BB       Present or prospective financial protection factors fluctuate
BB-      according to industry conditions or company fortunes.  Overall quality
         may move up or down frequently within this category.

B+       Below investment grade and possessing risk that obligations will not
B        be met when due.  Financial protection factors will fluctuate widely
B-       according to economic cycles, industry conditions and/or company
         fortunes.  Potential exists for frequent changes in the rating within
         this category or into a higher or lower rating grade.

CCC      Well below investment grade securities.  Considerable uncertainty
         exists as to timely payment of principal, interest or preferred
         dividends. Protection factors are narrow and risk can be substantial
         with unfavorable economic/industry conditions, and/or with unfavorable
         company developments.

DD       Defaulted debt obligations.  Issuer failed to meet scheduled principal
         and/or interest payments.

DP       Preferred stock with dividend arrearages.

DESCRIPTION OF FITCH'S LONG-TERM RATINGS

INVESTMENT GRADE BOND

AAA      Bonds considered to be investment grade and of the highest credit
         quality.  The obligor has an exceptionally strong ability to pay
         interest and repay principal, which is unlikely to be affected by
         reasonably foreseeable events.

AA       Bonds considered to be investment grade and of very high credit
         quality.  The obligor's ability to pay interest and repay principal is
         very strong, although not quite as strong as bonds rated 'AAA'.
         Because bonds rated in the 'AAA' and 'AA' categories are not
         significantly





                                      A-4
<PAGE>   47

         vulnerable to foreseeable future developments, short-term debt of
         these issuers is generally rated 'F-1+'.

A        Bonds considered to be investment grade and of high credit quality.
         The obligor's ability to pay interest and repay principal is
         considered to be strong, but may be more vulnerable to adverse changes
         in economic conditions and circumstances than bonds with higher
         ratings.

BBB      Bonds considered to be investment grade and of satisfactory credit
         quality.  The obligor's ability to pay interest and repay principal is
         considered to be adequate.  Adverse changes in economic conditions and
         circumstances, however, are more likely to have adverse impact on
         these bonds, and therefore impair timely payment.  The likelihood that
         the ratings of these bonds will fall below investment grade is higher
         than for bonds with higher ratings.

SPECULATIVE GRADE BOND

BB       Bonds are considered speculative.  The obligor's ability to pay
         interest and repay principal may be affected over time by adverse
         economic changes.  However, business and financial alternatives can be
         identified which could assist the obligor in satisfying its debt
         service requirements.

B        Bonds are considered highly speculative.  While bonds in this class
         are currently meeting debt service requirements, the probability of
         continued timely payment of principal and interest reflects the
         obligor's limited margin of safety and the need for reasonable
         business and economic activity throughout the life of the issue.

CCC      Bonds have certain identifiable characteristics which, if not
         remedied, may lead to default.  The ability to meet obligations
         requires an advantageous business and economic environment.

CC       Bonds are minimally protected.  Default in payment of interest and/or
         principal seems probable over time.

C        Bonds are in imminent default in payment of interest or principal.

DDD, DD, AND D            Bonds are in default on interest and/or principal
                          payments.  Such bonds are extremely speculative and
                          should be valued on the basis of their ultimate
                          recovery value in liquidation or reorganization of
                          the obligor.  'DDD' represents the highest potential
                          for recovery on these bonds, and 'D' represents the
                          lowest potential for recovery.

PLUS (+) MINUS (-)        Plus and minus signs are used with a rating symbol to
                          indicate the relative position of a credit within the
                          rating category.  Plus and minus signs, however, are
                          not used in the 'AAA', 'DDD', 'DD', or 'D'
                          categories.





                                      A-5
<PAGE>   48

DESCRIPTION OF IBCA'S LONG-TERM RATINGS

AAA      Obligations for which there is the lowest expectation of investment
         risk.  Capacity for timely repayment of principal and interest is
         substantial, such that adverse changes in business, economic or
         financial conditions are unlikely to increase investment risk
         substantially.

AA       Obligations for which there is a very low expectation of investment
         risk.  Capacity for timely repayment of principal and interest is
         substantial.  Adverse changes in business, economic or financial
         conditions may increase investment risk, albeit not very
         significantly.

A        Obligations for which there is a low expectation of investment risk.
         Capacity for timely repayment of principal and interest is strong,
         although adverse changes in business, economic or financial conditions
         may lead to increased investment risk.

BBB      Obligations for which there is currently a low expectation of
         investment risk.  Capacity for timely repayment of principal and
         interest is adequate, although adverse changes in business, economic
         or financial conditions are more likely to lead to increased
         investment risk than for obligations in other categories.

BB       Obligations for which there is a possibility of investment risk
         developing.  Capacity for timely repayment of principal and interest
         exists, but is susceptible over time to adverse changes in business,
         economic or financial conditions.

B        Obligations for which investment risk exists.  Timely repayment of
         principal and interest is not sufficiently protected against adverse
         changes in business, economic or financial conditions.

CCC      Obligations for which there is a current perceived possibility of
         default.  Timely repayment of principal and interest is dependent on
         favorable business, economic or financial conditions.

CC       Obligations which are highly speculative or which have a high risk of
         default.

C        Obligations which are currently in default.

Notes:"+" or "-" may be appended to a rating to denote relative status within
major rating categories.

         Ratings of BB and below are assigned where it is considered that
speculative characteristics are present.

DESCRIPTION OF THOMSON BANKWATCH'S LONG-TERM DEBT RATINGS

INVESTMENT GRADE

AAA      The highest category; indicates that the ability to repay principal
         and interest on a timely basis is very high.

AA       The second-highest category; indicates a superior ability to repay
         principal and interest on a timely basis, with limited incremental
         risk compared to issues rated in the highest category.





                                      A-6
<PAGE>   49
A        The third-highest category; indicates the ability to repay principal
         and interest is strong.  Issues rated "A" could be more vulnerable to
         adverse developments (both internal and external) than obligations
         with higher ratings.

BBB      The lowest investment-grade category; indicates an acceptable capacity
         to repay principal and interest.  Issues rated "BBB" are, however,
         more vulnerable to adverse developments (both internal and external)
         than obligations with higher ratings.

Non-Investment Grade
(Issues regarded as having speculative characteristics in the likelihood of
timely repayment of principal and interest.)

BB       While not investment grade, the "BB" rating suggests that the
         likelihood of default is considerably less than for lower-rated
         issues.  However, there are significant uncertainties that could
         affect the ability to adequately service debt obligations.

B        Issues rated "B" show a higher degree of uncertainty and therefore
         greater likelihood of default than higher-rated issues.  Adverse
         developments could well negatively affect the payment of interest and
         principal on a timely basis.

CCC      Issues rated "CCC" clearly have a high likelihood of default, with
         little capacity to address further adverse changes in financial
         circumstances.

CC       "CC" is applied to issues that are subordinate to other obligations
         rated "CCC" and are afforded less protection in the event of
         bankruptcy or reorganization.

D        Default

Ratings in the Long-Term Debt categories may include a plus (+) or minus (-)
designation, which indicates where within the respective category the issue is
placed.





                                      A-7
<PAGE>   50

SEI INSTITUTIONAL INVESTMENTS TRUST

                MANAGER AND SHAREHOLDER SERVICING AGENT:
                SEI FINANCIAL MANAGEMENT CORPORATION

                DISTRIBUTOR:
                SEI FINANCIAL SERVICES COMPANY



                MONEY MANAGERS:
                1838 INVESTMENT ADVISORS, L.P.
                ACADIAN ASSET MANAGEMENT, INC.
                ALLIANCE CAPITAL MANAGEMENT L.P.
   
                APODACA-JOHNSTON CAPITAL MANAGEMENT, INC.
                BEA ASSOCIATES
                BLACKROCK FINANCIAL MANAGEMENT, INC.
                BOSTON PARTNERS ASSET MANAGEMENT, L.P.
                FIRSTAR INVESTMENT RESEARCH & MANAGEMENT COMPANY
    
                IDS ADVISORY GROUP, INC.
                LSV ASSET MANAGEMENT
                MELLON EQUITY ASSOCIATES
   
                MERUS-UCA CAPITAL MANAGEMENT
    
                MONTGOMERY ASSET MANAGEMENT, L.P.
                MORGAN GRENFELL INVESTMENT SERVICES LIMITED
   
                NICHOLAS-APPLEGATE CAPITAL MANAGEMENT, INC.
                PROVIDENT INVESTMENT COUNSEL, INC.
    
                SCHRODER CAPITAL MANAGEMENT INTERNATIONAL LIMITED
   
                SEI FINANCIAL MANAGEMENT CORPORATION
    
                STRATEGIC FIXED INCOME, L.P.
   
                WALL STREET ASSOCIATES
                WESTERN ASSET MANAGEMENT COMPANY
    

   
This STATEMENT OF ADDITIONAL INFORMATION is not a Prospectus.  It is intended
to provide additional information regarding the activities and operations of
the SEI Institutional Investments Trust (the "Trust") and should be read in
conjunction with the Trust's Prospectus dated ______ __, 1996.  A Prospectus
may be obtained through SEI Financial Services Company, 680 East Swedesford
Road, Wayne, Pennsylvania 19087.
    

   
<TABLE>
<CAPTION>
<S>                               <C>                                                                                <C>
                                  TABLE OF CONTENTS                                                                  
The Trust . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-2
Description of Permitted Investments  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S-2
Description of Ratings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .S-11
Investment Limitations  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-14
The Money Managers  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-17
The Manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-17
Distribution  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-18
Trustees and Officers of the Trust  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-19
Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-21
Purchase and Redemption of Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-22
Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-23
Fund Transactions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-25
Description of Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-26
Limitation of Trustees' Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-26
Voting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-27
Shareholder Liability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  S-27
</TABLE>
    

   
________ __, 1996
    
SEI-_-___-___





<PAGE>   51

THE TRUST

   
SEI Institutional Investments Trust (the "Trust") is an open-end management
investment company that has diversified and non-diversified funds.  The Trust
was organized as a Massachusetts business trust under a Declaration of Trust
dated March 1, 1995.  The Declaration of Trust permits the Trust to offer
separate series ("funds") of units of beneficial interest ("shares") and
different classes of shares.  Each share of each fund represents an equal
proportionate interest in that fund with each other share of that fund.
    

   
This Statement of Additional Information relates to the following funds:  Large
Cap, Small Cap, Core Fixed Income, High Yield Bond, International Fixed Income,
Emerging Markets Equity and International Equity Funds (each a "Fund," and,
collectively, the "Funds").
    

DESCRIPTION OF PERMITTED INVESTMENTS

   
ALL FUNDS MAY INVEST IN THE FOLLOWING INVESTMENTS AND ENGAGE IN THE FOLLOWING
    
INVESTMENT PRACTICES UNLESS SPECIFICALLY NOTED OTHERWISE.

   
ASSET-BACKED SECURITIES--securities backed by automobile receivables and
credit-card receivables and other securities backed by other types of
receivables or other assets.  Credit support for asset-backed securities may be
based on the underlying assets and/or provided through credit enhancements by a
third party.  Credit enhancement techniques include letters of credit,
insurance bonds, limited guarantees (which are generally provided by the
issuer), senior-subordinated structures and overcollateralization.  The Core
Fixed Income, High Yield Bond and International Fixed Income Funds may invest
in asset-backed securities.
    

   
Asset-backed securities are not issued or guaranteed by the United States
Government or its agencies or instrumentalities; however, the payment of
principal and interest on such obligations may be guaranteed up to certain
amounts and for a certain period by a letter of credit issued by a financial
institution (such as a bank or insurance company) unaffiliated with the issuers
of such securities.  The purchase of asset-backed securities raises risk
considerations peculiar to the financing instruments underlying such
securities.  For example, there is a risk that another party could acquire an
interest in the obligations superior to that of the holders of the asset-backed
securities.  There also is the possibility that recoveries on repossessed
collateral may not, in some cases, be available to support payments on those
securities.  Asset-backed securities entail prepayment risk, which may vary
depending on the type of asset, but is generally less than the prepayment risk
associated with mortgage-backed securities.  In addition, credit card
receivables are unsecured obligations of the card holder.
    

   
The market for asset-backed securities is at a relatively early stage of
development.  Accordingly, there may be limited secondary market for such
securities.
    

BANKERS' ACCEPTANCES--a bill of exchange or time draft drawn on and accepted by
a commercial bank. It is used by corporations to finance the shipment and
storage of goods and to furnish dollar exchange. Maturities are generally six
months or less.

CERTIFICATES OF DEPOSIT--a negotiable interest bearing instrument with a
specific maturity. Certificates of deposit are issued by banks and savings and
loan institutions in exchange for the deposit of funds and normally can be
traded in the secondary market, prior to maturity.  Certificates of deposit
have penalties for early withdrawal.





                                      S-2
<PAGE>   52


COMMERCIAL PAPER--the term used to designate unsecured short-term promissory
notes issued by corporations and other entities.  Maturities on these issues
vary from a few days to nine months.  (See "Description of Ratings").

   

    

CONVERTIBLE SECURITIES--convertible securities have characteristics similar to
both fixed income and equity securities.  Because of the conversion feature,
the market value of convertible securities tends to move together with the
market value of the underlying stock.  As a result, a Fund's selection of
convertible securities is based, to a great extent, on the potential for
capital appreciation that may exist in the underlying stock.  The value of
convertible securities is also affected by prevailing interest rates, the
credit quality of the issuer and any call provisions.
[/R]

   
    

   
    

SECURITIES OF FOREIGN ISSUERS--may consist of obligations of foreign branches
of U.S. banks and foreign banks, including European Certificates of Deposit,
European Time Deposits, Canadian Time Deposits and Yankee Certificates of
Deposit and investments in Canadian Commercial Paper, foreign securities and
Europaper.  In addition, a Fund may invest in American Depositary Receipts
("ADRs") traded on registered exchanges or NASDAQ.  While a Fund expects to
invest primarily in sponsored ADRs, a joint arrangement between the issuer and
the depositary, some ADRs may be unsponsored.  Unlike sponsored ADRs, the
holders of unsponsored ADRs bear all expenses and the depositary may not be
obligated to distribute shareholder communications or to pass through the
voting rights on the deposited securities.  These instruments may subject a
Fund to investment risks that differ in some respects from those related to
investments in obligations of U.S. domestic issuers.  Such risks include
future adverse political and economic





                                      S-3
<PAGE>   53

developments, the possible imposition of withholding taxes on interest or other
income, possible seizure, nationalization, or expropriation of foreign
deposits, the possible establishment of exchange controls or taxation at the
source, greater fluctuations in value due to changes in the exchange rates, or
the adoption of other foreign governmental restrictions which might adversely
affect the payment of principal and interest on such obligations.  Such
investments may also entail higher custodial fees and sales commissions than
domestic investments.  Foreign issuers of securities or obligations are often
subject to accounting treatment and engage in business practices different from
those respecting domestic issuers of similar securities or obligations.
Foreign branches of U.S. banks and foreign banks may be subject to less
stringent reserve requirements than those applicable to domestic branches of
U.S. banks.

FORWARD FOREIGN CURRENCY CONTRACTS--involve an obligation to purchase or sell a
specified currency at a future date at a price set at the time of the contract.
Forward currency contracts do not eliminate fluctuations in the values of fund
securities but rather allow a Fund to establish a rate of exchange for a future
point in time.

When entering into a contract for the purchase or sale of a security in a
foreign currency, a Fund may enter into a foreign forward currency contract for
the amount of the purchase or sale price to protect against variations, between
the date the security is purchased or sold and the date on which payment is
made or received, in the value of the foreign currency relative to the United
States Dollar or other foreign currency.

   
Also, when the Money Manager anticipates that a particular foreign currency may
decline substantially relative to the United States dollar or other leading
currencies, in order to reduce risk, a Fund may enter into a forward contract
to sell, for a fixed amount, the amount of foreign currency approximating the
value of its securities denominated in such foreign currency.  With respect to
any such forward foreign currency contract, it generally will not be possible
to match precisely the amount covered by that contract and the value of the
securities involved due to changes in the values of such securities resulting
from market movements between the date the forward contract is entered into and
the date it matures.  In addition, while forward currency contracts may offer
protection from losses resulting from declines in value of a particular foreign
currency, they also limit potential gains which might result from increases in
the value of such currency.  A Fund will also incur costs in connection with
forward foreign currency contracts and conversions of foreign currencies into
United States dollars.  The High Yield Bond, International Fixed Income,
Emerging Markets Equity and International Equity Funds may enter into forward
foreign currency contracts.  
    

Investment company shares that are purchased by a Fund shall be limited
to shares of money market open-end investment companies and the Fund's Money
Manager will waive its fee on that portion of the assets placed in such money
market open-end investment companies.


   
GNMA SECURITIES--securities issued by the Government National Mortgage
Association ("GNMA"), a wholly-owned U.S. Government corporation, are
guaranteed by GNMA as to the timely payment of principal and interest.
However, any premiums paid to purchase these instruments are not subject to
GNMA guarantees.  The market value and interest yield of these instruments can
vary due to market interest rate fluctuations and early prepayments of
underlying mortgages.  These securities represent ownership in a pool of
federally insured mortgage loans.  GNMA certificates consist of underlying
mortgages with a maximum maturity of 30 years.  However, due to scheduled and
unscheduled principal payments, GNMA certificates have a shorter average
maturity and, therefore, less principal volatility than a comparable 30-year
bond. Since prepayment rates vary widely, it is not possible to accurately
predict the average maturity of a particular GNMA pool.  The scheduled monthly
interest and principal payments relating to mortgages in the pool will be
"passed through" to investors.  GNMA securities differ from conventional bonds
in that principal is paid back to the certificate holders over the life of the
loan rather than at maturity.  As a result, a Fund will receive monthly
scheduled payments of principal and interest.  In addition, a Fund may receive
    





                                      S-4
<PAGE>   54

unscheduled principal payments representing prepayments on the underlying
mortgages.  Any prepayments will be reinvested at the then prevailing interest
rate.

Although GNMA certificates may offer yields higher than those available from
other types of U.S. Government securities, GNMA certificates may be less
effective than other types of securities as a means of "locking in" attractive
long-term rates because of the prepayment feature.

   
LOWER RATED SECURITIES--lower-rated bonds are commonly referred to as "junk
bonds" or high yield/high risk securities.  These securities are rated "Baa" or
"BBB" or lower by an NRSRO.  Each Fund may invest in securities rated as low as
"C" by Moody's or "D" by S&P.  These ratings indicate that the obligations are
speculative and may be in default.  In addition, each Fund may invest in
unrated securities subject to the restrictions stated in the Prospectus.  The
High Yield Bond and Emerging Markets Equity Funds will invest in junk bonds.
    

CERTAIN RISK FACTORS RELATING TO HIGH-YIELD, HIGH-RISK SECURITIES.  The
descriptions below are intended to supplement the discussion in the Prospectus
under "General Investment Policies and Risk Factors - Risk Factors Relating to
Investing in Lower Rated Securities."

GROWTH OF HIGH YIELD BOND, HIGH-RISK BOND MARKET.  The widespread expansion of
government, consumer and corporate debt within the U.S. economy has made the
corporate sector more vulnerable to economic downturns or increased interest
rates.  Further, an economic downturn could severely disrupt the market for
lower rated bonds and adversely affect the value of outstanding bonds and the
ability of the issuers to repay principal and interest.

SENSITIVITY TO INTEREST RATE AND ECONOMIC CHANGES.  Lower rated bonds are very
sensitive to adverse economic changes and corporate developments.  During an
economic down turn or substantial period of rising interest rates, highly
leveraged issuers may experience financial stress that would adversely affect
their ability to service their principal and interest payment obligations, to
meet projected business goals, and to obtain additional financing.  If the
issuer of a bond defaulted on its obligations to pay interest or principal or
entered into bankruptcy proceedings, a Fund may incur losses or expenses in
seeking recovery of amounts owed to it.  In addition, periods of economic
uncertainty and change can be expected to result in increased volatility of
market prices of high-yield, high-risk bonds and a Fund's net asset value.

PAYMENT EXPECTATIONS.  High-yield, high-risk bonds may contain redemption or
call provisions.  If an issuer exercised these provisions in a declining
interest rate market, a Fund would have to replace the security with a lower
yielding security, resulting in a decreased return for investors.  Conversely,
a high-yield, high-risk bond's value will decrease in a rising interest rate
market, as will the value of a Fund's assets.  If a Fund experiences
significant unexpected net redemptions, this may force it to sell high-yield,
high-risk bonds without regard to their investment merits, thereby decreasing
the asset base upon which expenses can be spread and possibly reducing the
Fund's rate of return.

LIQUIDITY AND VALUATION.  There may be little trading in the secondary market
for particular bonds, which may affect adversely a Fund's ability to value
accurately or dispose of such bonds.  Adverse publicity and investor
perception, whether or not based on fundamental analysis, may decrease the
vales and liquidity of high-yield, high-risk bonds, especially in a thin
market.

LEGISLATION.  Federal laws require the divestiture by federally insured savings
and loan associations of their investments in lower rated bonds and limit the
deductibility of interest by certain corporate issuers of high yield bonds.
These laws could adversely affect a Fund's net asset value and investment
practices, the secondary market for high yield securities, the financial
condition of issuers of these securities and the value of outstanding high
yield securities.





                                      S-5
<PAGE>   55


TAXES.  A Fund may purchase debt securities (such as zero-coupon or pay-in-kind
securities) that contain original issue discount.  Original issue discount that
accretes in a taxable year is treated as earned by a Fund and therefore is
subject to the distribution requirements of the Internal Revenue Code of 1986,
as amended (the "Code").  Because the original issue discount earned by a Fund
in a taxable year may not be represented by cash income, the Fund may have to
dispose of other securities and use the proceeds to make distributions to
shareholders.

   
    

   
MORTGAGE-BACKED SECURITIES--in which the Funds may invest in represent pools
of mortgage loans assembled for sale to investors by various governmental
agencies such as the GNMA and government-related organizations such as the
Federal National Mortgage Association ("FNMA") and the Federal Home Loan
Mortgage Corporation ("FHLMC").  In addition, the High Yield Bond may invest in
pools of mortgage loans from nongovernmental issuers such as commercial banks,
savings and loan institutions, mortgage bankers, and private mortgage insurance
companies.  Although certain mortgage-backed securities are guaranteed by a
third party or otherwise similarly secured, the market value of the security,
which may fluctuate, is not so secured.  If a Fund purchases a mortgage-backed
security at a premium, that portion may be lost if there is a decline in the
market value of the security whether resulting from changes in interest rates
or prepayments in the underlying mortgage collateral.  As with other
interest-bearing securities, the prices of such securities are inversely
affected by changes in interest rates.  However, though the value of a
mortgage-backed security may decline when interest rates rise, the converse is
not necessarily true since in periods of declining interest rates the mortgages
underlying the securities are prone to prepayment.  For this and other reasons,
a mortgage-backed security's stated maturity may be shortened by unscheduled
prepayments on the underlying mortgages and, therefore, it is not possible to
predict accurately the security's return to a Fund.  In addition, regular
payments received in respect of mortgage-backed securities include both
interest and principal.  No assurance can be given as to the return a Fund will
receive when these amounts are reinvested.
    

A Fund may also invest in mortgage-backed securities that are collateralized
mortgage obligations structured on pools of mortgage pass-through certificates
or mortgage loans.

   
There are a number of important differences among the agencies and
instrumentalities of the U.S. Government that issue mortgage-backed securities
and among the securities that they issue.  Mortgage-backed securities issued by
GNMA include GNMA Mortgage Pass-Through Certificates (also known as "Ginnie
Maes") which are guaranteed as to the timely payment of principal and interest
by GNMA and is backed by the full faith and credit of the United States.  GNMA
certificates also are supported by the authority of GNMA to borrow funds from
the U.S. Treasury to make payments under its guarantee.  Mortgage-backed
securities issued by FNMA include FNMA Guaranteed Mortgage Pass-Through
Certificates (also known as "Fannie Maes") which are solely the obligations of
the FNMA and are not backed by or entitled to the full faith and credit of the
United States.  FNMA is a government-sponsored organization owned entirely by
private stockholders.  Fannie Maes are guaranteed as to timely payment of the
principal and interest by FNMA.  Mortgage-backed securities issued by FHLMC
include FHLMC Mortgage Participation Certificates (also known as "Freddie Macs"
or "PCs").  FHLMC is a corporate instrumentality of the United States, created
pursuant to an Act of Congress, which is owned entirely by Federal Home Loan
Banks.  Freddie Macs are not guaranteed by the United States or by any Federal
Home Loan Banks and do not constitute a debt or obligation of the United States
or of any Federal Home Loan Bank.  Freddie Macs entitle the holder to timely
payment of interest, which is guaranteed by FHLMC.  FHLMC guarantees either
ultimate collection or timely payment of all principal payments on the
    





                                      S-6
<PAGE>   56

   
underlying mortgage loans.  FHLMC has in the past guaranteed only the ultimate
collection of principal of the underlying mortgage loan; however, FHLMC now
issues mortgage-backed securities (FHLMC Gold PCs) which also guarantee timely
payment of monthly principal reductions.  Government and private guarantees do
not extend to the securities' value, which is likely to vary inversely with
fluctuations in interest rates. When FHLMC does not guarantee timely payment of
principal, FHLMC may remit the amount due on account of its guarantee of
ultimate payment of principal at any time after default on an underlying
mortgage, but in no event later than one year after it becomes payable.  The
Core Fixed Income, High Yield Bond and International Fixed Income Funds may,
consistent with their respective investment objectives and policies, invest in
mortgage-backed securities issued or guaranteed by the U.S. Government or its
agencies or instrumentalities.  The High Yield Bond Fund may also purchase
mortgage-backed securities issued by non-governmental entities as set forth in
the Prospectus.
    

   
Parallel Pay Securities; PAC Bonds:  Parallel pay CMOs and REMICS are
structured to provide payments of principal on each payment date to more than
one class.  These simultaneous payments are taken into account in calculating
the stated maturity date or final distribution date of each class, which must
be retired by its stated maturity date or final distribution date, but may be
retired earlier.  It is possible that payments on one class of parallel pay
security may be deferred or subordinated to payments on other classes.  Planned
Amortization Class CMOs ("PAC Bonds") generally require payments of a specified
amount of principal on each payment date.  PAC Bonds are always parallel pay
CMOs with the required principal payment on such securities having the highest
priority after interest has been paid to all classes.
    

   
MORTGAGE DOLLAR ROLLS--or "covered rolls" are transactions in which a Fund
sells securities (usually mortgage-backed securities) and simultaneously
contracts to repurchase, typically in 30 or 60 days, substantially similar, but
not identical, securities on a specified future date.  During the roll period,
a Fund forgoes principal and interest paid on such securities.  A Fund is
compensated by the difference between the current sales price and the forward
price for the future purchase (often referred to as the "drop") as well as by
the interest earned on the cash proceeds of the initial sale.  A "covered roll"
is a specific type of mortgage dollar roll for which there is an offsetting
cash position or cash equivalent securities position that matures on or before
the forward settlement date of the mortgage dollar roll transaction.  As used
herein the term "mortgage dollar roll" refers to mortgage dollar rolls that are
not "covered rolls."  At the end of the roll commitment period, a Fund may or
may not take delivery of the securities it has contracted to purchase.  The
Core Fixed Income Fund may enter into mortgage dollar rolls.
    

   
OBLIGATIONS OF SUPRANATIONAL AGENCIES--may be purchased by the Core Fixed
Income, International Fixed Income, Emerging Markets Equity and International
Equity Funds.  Currently, each Fund intends to invest only in obligations
issued or guaranteed by the Asian Development Bank, Inter-American Development
Bank, European Coal and Steel Community, European Economic Community, European
Investment Bank and the Nordic Investment Bank.
    

   
PUT TRANSACTIONS--All of the Funds may purchase securities at a price which
would result in a yield to maturity lower than generally offered by the seller
at the time of purchase when a Fund can simultaneously acquire the right to
sell the securities back to the seller, the issuer or a third party (the
"writer") at an agreed-upon price at any time during a stated period or on a
certain date.  Such a right is generally denoted as a "standby commitment" or a
"put."  The purpose of engaging in transactions involving puts is to maintain
flexibility and liquidity to permit a Fund to meet redemptions and remain as
fully invested as possible in municipal securities.  A Fund reserves the right
to engage in put transactions.  The right to put the securities depends on the
writer's ability to pay for the securities at the time the put is exercised.  A
Fund would limit its put transactions to institutions which the Fund's Money
Managers believe present minimum credit risks, and the Fund's Money Managers
would use their best efforts to initially determine and continue to monitor the
financial strength of the sellers of the options by
    





                                      S-7
<PAGE>   57

evaluating their financial statements and such other information as is
available in the marketplace.  It may, however, be difficult to monitor the
financial strength of the writers because adequate current financial
information may not be available.  In the event that any writer is unable to
honor a put for financial reasons, a Fund would be a general creditor (i.e. on
a parity with all other unsecured creditors) of the writer.  Furthermore,
particular provisions of the contract between a Fund and the writer may excuse
the writer from repurchasing the securities; for example, a change in the
published rating of the underlying municipal securities or any similar event
that has an adverse effect on the issuer's credit or a provision in the
contract that the put will not be exercised except in certain special cases,
for example, to maintain fund liquidity.  A Fund could, however, at any time
sell the underlying fund security in the open market or wait until the fund
security matures, at which time it should realize the full par value of the
security.

The securities purchased subject to a put may be sold to third persons at any
time, even though the put is outstanding, but the put itself, unless it is an
integral part of the security as originally issued, may not be marketable or
otherwise assignable.  Therefore, the put would have value only to that
particular Fund.  Sale of the securities to third parties or lapse of time with
the put unexercised may terminate the right to put the securities.  Prior to
the expiration of any put option, a Fund could seek to negotiate terms for the
extension of such an option.  If such a renewal cannot be negotiated on terms
satisfactory to the Fund, the Fund could, of course, sell the fund security.
The maturity of the underlying security will generally be different from that
of the put.  There will be no limit to the percentage of fund securities that a
Fund may purchase subject to a put but the amount paid directly or indirectly
for puts which are not integral parts of the security as originally issued will
not exceed 1/2 of 1% of the value of the total assets of such Fund calculated
immediately after any such put is acquired.  For the purpose of determining the
"maturity" of securities purchased subject to an option to put, and for the
purpose of determining the dollar-weighted average maturity of a Fund including
such securities, the Trust will consider "maturity" to be the first date on
which it has the right to demand payment from the writer of the put although
the final maturity of the security is later than such date.

   
RECEIPTS--interests in separately traded interest and principal component parts
of U.S. Government obligations that are issued by banks or brokerage firms and
are created by depositing U.S. Government obligations into a special account at
a custodian bank.  The custodian holds the interest and principal payments for
the benefit of the registered owners of the certificates or receipts.  The
custodian arranges for the issuance of the certificates or receipts evidencing
ownership and maintains the register.  Receipts include "Treasury Receipts"
("TRs"), "Treasury Investment Growth Receipts" ("TIGRs"), and "Certificates of
Accrual on Treasury Securities" ("CATS").  TIGRs and CATS are interests in
private proprietary accounts while TRs and STRIPS (See "U.S. Treasury
Obligations") are interests in accounts sponsored by the U.S. Treasury.
Receipts are sold as zero coupon securities; for more information, see "Zero
Coupon Securities."  The Large Cap, Small Cap, Core Fixed Income and High Yield
Bond Funds may invest in receipts.
    

REPURCHASE AGREEMENTS--agreements under which securities are acquired from a
securities dealer or bank subject to resale on an agreed upon date and at an
agreed upon price which includes principal and interest. A Fund involved bears
a risk of loss in the event that the other party to a repurchase agreement
defaults on its obligations and the Fund is delayed or prevented from
exercising its rights to dispose of the collateral securities.  A Fund's Money
Managers enter into repurchase agreements only with financial institutions that
they deem to present minimal risk of bankruptcy during the term of the
agreement, based on guidelines that are periodically reviewed by the Board of
Trustees.  These guidelines currently permit each Fund to enter into repurchase
agreements only with approved banks and primary securities dealers, as
recognized by the Federal Reserve Bank of New York, which have minimum net
capital of $100 million, or with a member bank of the Federal Reserve System.
Repurchase agreements are considered to be loans collateralized by the
underlying security. Repurchase agreements entered into by a Fund will provide
that the underlying security at all times shall have a value at least equal to
102% of the price stated in the agreement.  This underlying security will be
marked to market daily.  A Fund's Money Managers will monitor compliance





                                      S-8
<PAGE>   58

with this requirement.  Under all repurchase agreements entered into by a Fund,
the Custodian or its agent must take possession of the underlying collateral.
However, if the seller defaults, a Fund could realize a loss on the sale of the
underlying security to the extent the proceeds of the sale are less than the
resale price.  In addition, even though the Bankruptcy Code provides protection
for most repurchase agreements, if the seller should be involved in bankruptcy
or insolvency proceedings, a Fund may incur delay and costs in selling the
security and may suffer a loss of principal and interest if the Fund is treated
as an unsecured creditor.

   
SECURITIES LENDING--in order to generate additional income, a Fund may lend the
securities in which it is invested pursuant to agreements requiring that the
loans be continuously secured by cash, securities of the U.S. Government or its
agencies, or any combination of cash and such securities, as collateral equal
to at least the market value at all times of the securities lent.  A Fund will
continue to receive interest on the securities lent while simultaneously
earning interest on the investment of the cash collateral in U.S. Government
securities.  However, a Fund will normally pay lending fees to such
broker-dealers and related expenses from the interest earned on invested
collateral.  There may be risks of delay in receiving additional collateral or
risks of delay in recovery of the securities or even loss of rights in the
collateral should the borrower of the securities fail financially.  However,
loans are made only to borrowers deemed by the Fund's Money Managers to be of
good standing and when, in the judgment of the Fund's Money Managers, the
consideration which can be earned currently from such securities loans
justifies the attendant risk.  Any loan may be terminated by either party upon
reasonable notice to the other party.  Each Fund may use the Distributor as a
broker in these transactions.
    

   
SWAPS, CAPS, FLOORS AND COLLARS--are sophisticated hedging instruments that
typically involve a small investment of cash relative to the magnitude of risk
assumed.  As a result, swaps can be highly volatile and have a considerable
impact on a Fund's performance.  Swap agreements are subject to risks related
to the counterparty's ability to perform, and may decline in value if the
counterparty's creditworthiness deteriorates.  A Fund may also suffer losses if
it is unable to terminate outstanding swap agreements or reduce its exposure
through offsetting transactions.  Any obligation a Fund may have under these
types of arrangements will be covered by setting aside liquid high grade
securities in a segregated account.  A Fund will enter into swaps only with
counterparties believed to be creditworthy.
    

   
The buyer of an interest rate cap obtains the right to receive payments to the
extent that a specific interest rate exceeds an agreed-upon level, while the
seller of an interest rate floor is obligated to make payments to the extent
that a specified interest rate falls below an agreed-upon level.  An interest
rate collar combines elements of buying a cap and selling a floor.
    

TIME DEPOSITS--a non-negotiable receipt issued by a bank in exchange for the
deposit of funds. Like a certificate of deposit, it earns a specified rate of
interest over a definite period of time; however, it cannot be traded in the
secondary market.

   
Time deposits with a withdrawal penalty are considered to be illiquid
securities.  The High Yield Bond, International Fixed Income, Emerging Markets
Equity and International Equity Funds may invest in time deposits.
    

U.S. GOVERNMENT AGENCY OBLIGATIONS--agencies of the United States Government
that issue obligations, including, among others, Export Import Bank of the
United States, Farmers Home Administration, Federal Farm Credit System, Federal
Housing Administration, Government National Mortgage Association, Maritime
Administration, Small Business Administration and The Tennessee Valley
Authority.  A Fund may purchase securities issued or guaranteed by the GNMA
which represent participations in Veterans Administration and Federal Housing
Administration backed mortgage pools.





                                      S-9
<PAGE>   59

Obligations of instrumentalities of the United States Government include
securities issued by, among others, Federal Home Loan Banks, FHLMC, Federal
Intermediate Credit Banks, Federal Land Banks, FNMA and the United States
Postal Service.  Some of these securities are supported by the full faith and
credit of the United States Treasury (e.g., GNMA), others are supported by the
right of the issuer to borrow from the Treasury and still others are supported
only by the credit of the instrumentality (e.g., FNMA).  Guarantees of
principal by agencies or instrumentalities of the U.S. Government may be a
guarantee of payment at the maturity of the obligation so that in the event of
a default prior to maturity there might not be a market and thus no means of
realizing the value of the obligation prior to maturity.  Guarantees as to the
timely payment of principal and interest do not extend to the value or yield of
these securities nor to the value of a Fund's shares.

U.S. TREASURY OBLIGATIONS--bills, notes and bonds issued by the U.S. Treasury
and separately traded interest and principal component parts of such
obligations that are transferable through the Federal book-entry system known
as Separately Traded Registered Interest and Principal Securities ("STRIPS").
No Fund may actively trade STRIPS.  STRIPS are sold as zero coupon securities;
for more information, see "Zero Coupon Securities."

VARIABLE OR FLOATING RATE INSTRUMENTS--may involve a demand feature and may
include variable amount master demand notes available through the Custodian, or
otherwise.  Variable or floating rate instruments bear interest at a rate which
varies with changes in market rates.  The holder of an instrument with a demand
feature may tender the instrument back to the issuer at par prior to maturity.
A variable amount master demand note is issued pursuant to a written agreement
between the issuer and the holder, its amount may be increased by the holder or
decreased by the holder or issuer, it is payable on demand, and the rate of
interest varies based upon an agreed formula.  The quality of the underlying
credit must, in the opinion of the Fund's managers, be equivalent to the
long-term bond or commercial paper ratings applicable to permitted investments
for each Fund.  Each Fund's Money Managers will monitor on an ongoing basis the
earning power, cash flow, and liquidity ratios of the issuers of such
instruments and will similarly monitor the ability of an issuer of a demand
instrument to pay principal and interest on demand.

In case of obligations which include a put feature at the option of the debt
holder, the date of the put may be used as an effective maturity date for the
purpose of determining weighted average fund maturity.

WHEN-ISSUED SECURITIES--involve the purchase of debt obligations on a
when-issued basis, in which case delivery and payment normally take place
within 45 days after the date of commitment to purchase.  A Fund will only make
commitments to purchase obligations on a when-issued basis with the intention
of actually acquiring the securities, but may sell them before the settlement
date.  The when-issued securities are subject to market fluctuation, and no
interest accrues to the purchaser during this period.  The payment obligation
and the interest rate that will be received on the securities are each fixed at
the time the purchaser enters into the commitment.  Purchasing obligations on a
when-issued basis is a form of leveraging and can involve a risk that the
yields available in the market when the delivery takes place may actually be
higher than those obtained in the transaction itself.  In that case there could
be an unrealized loss at the time of delivery.  A Fund will establish a
segregated account with its Custodian and maintain liquid assets in an amount
at least equal in value to that Fund's commitments to purchase when-issued
securities.  If the value of these assets declines, the Fund involved will
place additional liquid assets in the account on a daily basis so that the
value of the assets in the account is equal to the amount of such commitments.

ZERO COUPON SECURITIES--STRIPS and receipts (TRs, TIGRs and CATS) are sold as
zero coupon securities, that is, fixed income securities that have been
stripped of their unmatured interest coupons.  Zero coupon securities are sold
at a (usually substantial) discount and redeemed at face value at their
maturity date without interim cash payments of interest or principal.  The
amount of this discount is accreted over the life of the security, and the
accretion constitutes the income earned on the security for both accounting and
tax purposes.  Because of these features, the market prices of zero coupon
securities are generally more





                                      S-10
<PAGE>   60

volatile than the market prices of securities that have similar maturity but
that pay interest periodically.  Zero coupon securities are likely to respond
to a greater degree to interest rate changes than are non-zero coupon
securities with similar maturity and credit qualities.  See also "Taxes."

   
CORPORATE ZERO COUPON SECURITIES:  Corporate zero coupon securities are:  (i)
notes or debentures which do not pay current interest and are issued at
substantial discounts from par value, or (ii) notes or debentures that pay no
current interest until a stated dated one or more years into the future, after
which the issuer is obligated to pay interest until maturity, usually at a
higher rate than if interest were payable from the date of issuance and may
also make interest payments in kind (e.g., with identical zero coupon
securities).  Such corporate zero coupon securities, in addition to the risks
identified above, are subject to the risk of the issuer's failure to pay
interest and repay principal in accordance with the terms of the obligation.  A
Fund must accrete the discount or interest on high-yield bonds structured as
zero coupon securities as income even though it does not receive a
corresponding cash interest payment until the security's maturity or payment
date.  The Large Cap, Small Cap, Core Fixed Income, High Yield Bond and
International Fixed Income Funds may invest in zero coupon and corporate zero
coupon securities.
    

   
    

   
    

DESCRIPTION OF RATINGS

DESCRIPTION OF MOODY'S SHORT-TERM RATINGS

PRIME-1  Issuers rated Prime-1 (or supporting institutions) have a superior
ability for repayment of senior short-term debt obligations.  Prime-1 repayment
ability will often be evidenced by many of the following characteristics:
- --Leading market positions in well-established industries.  
- --High rates of return on funds employed. 
- --Conservative capitalization structure with moderate reliance on debt and 
  ample asset protection.  
- --Broad margins in earnings coverage of fixed financial charges and high 
  internal cash generation.
- --Well-established access to a range of financial markets and assured sources
  of alternate liquidity.

PRIME-2  Issuers rated Prime-2 (or supporting institutions) have a strong
ability for repayment of senior short-term debt obligations.  This will
normally be evidenced by many of the characteristics cited above but to a
lesser degree.  Earnings trends and coverage ratios, while sound, may be more
subject to variation.  Capitalization characteristics, while still appropriate,
may be more affected by external conditions.  Ample alternate liquidity is
maintained.

PRIME-3  Issuers rated Prime-3 (or supporting institutions) have an acceptable
ability for repayment of senior short-term obligations.  The effect of
industry characteristics and market compositions may be more pronounced.
Variability in earnings and profitability may result in changes in the level of
debt protection measurements and may require relatively high financial
leverage.  Adequate alternate liquidity is maintained.

NOT PRIME  Issuers rated Not Prime do not fall within any of the Prime rating
categories.





                                      S-11
<PAGE>   61

STANDARD & POOR'S SHORT-TERM RATINGS

A-1      This highest category indicates that the degree of safety regarding
         timely payment is strong.  Debt determined to possess extremely strong
         safety characteristics is denoted with a plus sign (+) designation.

A-2      Capacity for timely payment on issues with this designation is
         satisfactory.  However, the relative degree of safety is not as high
         as for issues designated 'A-1'.

A-3      Debt carrying this designation has an adequate capacity for timely
         payment.  It is, however, more vulnerable to the adverse effects of
         changes in circumstances than obligations carrying the higher
         designations.

B        Debt rated 'B' is regarded as having only speculative capacity for
         timely payment.

C        This rating is assigned to short-term debt obligations with a doubtful
         capacity for payment.

D        This rating indicates that the obligation is in payment default.

DESCRIPTION OF DUFF & PHELPS' SHORT-TERM RATINGS

Duff 1+  Highest certainty of timely payment.  Short-term liquidity, including
         internal operating factors and/or access to alternative sources of
         funds, is outstanding, and safety is just below risk-free U.S. Treasury
         short-term obligations.

Duff 1   Very high certainty of timely payment.  Liquidity factors are excellent
         and supported by good fundamental protection factors.  Risk factors are
         minor.

Duff 1-  High certainty of timely payment.  Liquidity factors are strong and
         supported by good fundamental protection factors.  Risk factors are
         very small.

GOOD GRADE

Duff 2   Good certainty of timely payment.  Liquidity factors and company
         fundamentals are sound.  Although ongoing funding needs may enlarge
         total financing requirements, access to capital markets is good.
         Risk factors are small.

SATISFACTORY GRADE

Duff 3   Satisfactory liquidity and other protection factors qualify issue as to
         investment grade.  Risk factors are larger and subject to more
         variation.  Nevertheless, timely payment is expected.

NON-INVESTMENT GRADE

Duff 4   Speculative investment characteristics.  Liquidity is not sufficient to
         insure against disruption in debt service.  Operating factors and
         market access may be subject to a high degree of variation.

DEFAULT

Duff 5   Issuer failed to meet scheduled principal and/or interest payments.





                                      S-12
<PAGE>   62

DESCRIPTION OF FITCH'S SHORT-TERM RATINGS

F-1+     Exceptionally Strong Credit Quality.  Issues assigned this rating are
         regarded as having the strongest degree of assurance for timely
         payment.

F-1      Very Strong Credit Quality.  Issues assigned this rating reflect an
         assurance of timely payment only slightly less in degree than issues
         rated 'F-1+'

F-2      Good Credit Quality.  Issues assigned this rating have a satisfactory
         degree of assurance for timely payment, but the margin of safety is not
         as great as for issues assigned 'F-1+' and 'F-1' ratings.

F-3      Fair Credit Quality.  Issues assigned this rating have characteristics
         suggesting that the degree of assurance for timely payment is adequate,
         however, near-term adverse changes could cause these securities to be
         rated below investment grade.

F-S      Weak Credit Quality.  Issues assigned this rating have characteristics
         suggesting a minimal degree of assurance for timely payment and are
         vulnerable to near-term adverse changes in financial and economic
         conditions.

D        Default.  Issues assigned this rating are in actual or imminent payment
         default.

LOC      The symbol LOC indicates that the rating is based on a letter of credit
         issued by a commercial bank.

DESCRIPTION OF IBCA'S SHORT-TERM RATINGS (UP TO 12 MONTHS)

A1+      Obligations supported by the highest capacity for timely repayment.

A1       Obligations supported by a strong capacity for timely repayment.

A2       Obligations supported by a satisfactory capacity for timely repayment,
         although such capacity may be susceptible to adverse changes in
         business, economic, or financial conditions.

A3       Obligations supported by an adequate capacity for timely repayment.
         Such capacity is more susceptible to adverse changes in business,
         economic, or financial conditions than for obligations in higher
         categories.

B        Obligations for which the capacity for timely repayment is susceptible
         to adverse changes in business, economic, or financial conditions.

C        Obligations for which there is an inadequate capacity to ensure timely
         repayment.

D        Obligations which have a high risk of default or which are currently in
         default.

DESCRIPTION OF THOMSON BANKWATCH'S SHORT-TERM RATINGS

TBW-1    The highest category; indicates a very high likelihood that principal
         and interest will be paid on a timely basis.

TBW-2    The second-highest category; while the degree of safety regarding
         timely repayment of principal and interest is strong, the relative
         degree of safety is not as high as for issues rated "TBW-1". 





                                      S-13
<PAGE>   63

TBW-3    The lowest investment-grade category; indicates that while the
         obligation is more susceptible to adverse developments (both
         internal and external) than those with higher ratings, the
         capacity to service principal and interest in a timely fashion is
         considered adequate.

TBW-4    The lowest rating category; this rating is regarded as non-investment
         grade and therefore speculative.


INVESTMENT LIMITATIONS

FUNDAMENTAL POLICIES

A Fund may not:

   
1.       Borrow money in an amount exceeding 33 1/3% of the value of its total
         assets, provided that, for purposes of this limitation, investment
         strategies which either obligate a Fund to purchase securities or
         require a Fund to segregate assets are not considered to be borrowings.
         To the extent that its borrowings exceed 5% of its assets, (i) all
         borrowings will be repaid before making additional investments and any
         interest paid on such borrowings will reduce income, and (ii) asset
         coverage of at least 300% is required.
    

   
    

   
2.       Make loans if, as a result, more than 33 1/3% of its total assets would
         be lent to other parties, except that each Fund may (i) purchase or
         hold debt instruments in accordance with its investment objective and
         policies; (ii) enter into repurchase agreements; and (iii) lend its
         securities.
    

   
3.       Purchase or sell real estate, physical commodities, or commodities
         contracts, except that each Fund may purchase (i) marketable securities
         issued by companies which own or invest in real estate (including real
         estate investment trusts), commodities, or commodities contracts, and
         (ii) commodities contracts relating to financial instruments, such as
         financial futures contracts and options on such contracts.
    

   
4.       Issue senior securities (as defined in the Investment Company Act of
         1940, as amended (the "1940 Act") except as permitted by rule,
         regulation or order of the Securities and Exchange Commission ("SEC").
    

   
    




                                     S-14


<PAGE>   64
   
    

   
    

   
    

   
    

   
    

   
    

   
    

   
5.       Act as an underwriter of securities of other issuers except as it may 
         be deemed an underwriter in selling a portfolio security.
    

   
6.       Invest in interests in oil, gas or other mineral exploration or 
         development programs and oil, gas or mineral leases.
    

   
    





                                     S-15
<PAGE>   65


   
    

   
    

   
The foregoing percentages will apply at the time of the purchase of a security
and shall not be violated unless an excess or deficiency occurs, immediately
after or as a result of a purchase of such security.  These investment
limitations and the investment limitations in the Prospectus are fundamental
policies of the Trust and may not be changed without shareholder approval.
    


   
NON-FUNDAMENTAL POLICIES
    

   
The following investment limitations are non-fundamental policies of the Trust
and may change without shareholder approval.
    

A Fund may not:

   
1.       Pledge, mortgage or hypothecate assets except to secure borrowings
         permitted by the Fund's fundamental limitation on borrowing.
    

   
2.       Invest in companies for the purpose of exercising control.
    

   
3.       Purchase securities on margin or effect short sales, except that each
         Fund may (i) obtain short-term credits as necessary for the clearance
         of security transactions, (ii) provide initial and variation margin
         payments in connection with transactions involving futures contracts
         and options on such contracts, and (iii) make short sales "against the
         box" or in compliance with the SEC's position regarding the asset
         segregation requirements of section 18 of the 1940 Act.
    

   
4.       Invest its assets in securities of any investment company, except (i)
         by purchase in the open market involving only customary brokers'
         commissions, (ii) in connection with mergers, acquisitions of assets,
         or consolidations, or (iii) as otherwise permitted by the 1940 Act.
    

   
5.       Purchase or retain securities of an issuer if, to the knowledge of the
         Trust, an officer, trustee, partner or director of the Trust or any
         investment adviser of the Trust owns beneficially more than 1/2 of the
         1% of the shares or securities of such issuer and all such officers,
         trustees, partners and directors owning more than 1/2 of 1% of such
         shares or securities together own more than 5% of such shares or
         securities.
    

   
6.       Purchase securities of any company which has (with predecessors) a
         record of less than three years continuing operations if, as a result,
         more than 5% of the total assets (taken at current value) would be
         invested in such securities.
    

   
7.       Purchase illiquid securities, i.e., securities that cannot be disposed
         of for their approximate carrying value in seven days or less  (which 
         term includes repurchase agreements and time deposits maturing in 
         more than seven days) if, in the aggregate, more than 15% of its total
         assets would be invested in illiquid securities. Notwithstanding the 
         foregoing, securities eligible to be re-sold under Rule 144A of the 
         1933 Act may be treated as liquid securities under procedures adopted
         by the Board of Trustees. 
    





                                      S-16
<PAGE>   66


   
8.       Purchase securities which are not readily marketable or which must be
         registered under the 1933 Act, as amended, before they may be sold to
         the public, if, in the aggregate, more than 15% of its total assets
         would be invested in such restricted securities.
    

   
Pursuant to rules and regulations under the 1940 Act, a Fund is prohibited from
acquiring the securities of other investment companies if, as a result of such
acquisition, the Fund owns more than 3% of the total voting stock of the
company; securities issued by any one investment company represent more than 5%
of the total Fund assets; or securities (other than treasury stock) issued by
all investment companies represent more than 10% of the total assets of the
Fund.  A Fund's purchase of such investment company securities results in the
bearing of expenses such that shareholders would indirectly bear a
proportionate share of the operating expenses of such investment companies,
including advisory fees.
    

   
ADDITIONAL RESTRICTIONS
    

   
The following are non-fundamental investment limitations that are currently
required by one or more states in which the Trust sells shares of the Funds.
These limitations are in addition to, and in some cases more restrictive than,
the fundamental and non-fundamental investment limitations listed above.  A
limitation may be changed or eliminated if the relevant state(s) changes or
eliminates its policy regarding such investment restriction.
    

   
1.       A Fund may not invest more than 5% of its net assets in warrants;
         provided that of this 5% no more than 2% will be in warrants that are
         not listed on the New York Stock Exchange or the American Stock
         Exchange.
    

   
2.       A Fund may not invest in the securities of other investment companies
         except by purchase in the open market where no commission or profit to
         a sponsor or dealer results from the purchase other than the customary
         broker's commission, or except when the purchase is part of a plan of
         merger, consolidation, reorganization or acquisition.
    

   
3.       A Fund may not make short sales, except for short sales "against the
         box."
    

THE MONEY MANAGERS

   
Each Money Manager Agreement provides that a Money Manager shall not be
protected against any liability to the Trust or its shareholders by reason of
willful misfeasance, bad faith or gross negligence on its part in the
performance of its duties or from reckless disregard of its obligations or
duties thereunder.  In addition, certain of the Sub-Advisory Agreements provide
that the Sub-Adviser shall not be protected against any liability to the Trust
or its shareholders by reason of willful misfeasance, bad faith or negligence
on its part in the performance of its duties, or from reckless disregard of its
obligations or duties thereunder.
    

The continuance of each Money Manager Agreement must be specifically approved
at least annually (i) by the vote of a majority of the outstanding shares of
that Fund or by the Trustees, and (ii) by the vote of a majority of the
Trustees who are not parties to such Agreement or "interested persons" of any
party thereto, cast in person at a meeting called for the purpose of voting on
such approval.  Each Money Manager Agreement will terminate automatically in
the event of its assignment, and is terminable at any time without penalty by
the Trustees of the Trust or, with respect to a Fund, by a majority of the
outstanding shares of that Fund, on not less than 30 days nor more than 60 days
written notice to the Money Manager or by the Money Manager on 90 days written
notice to the Trust.

   
THE MANAGER
    





                                      S-17
<PAGE>   67


The Management Agreement provides that SFM shall not be liable for any error of
judgment or mistake of law or for any loss suffered by the Trust in connection
with the matters to which the Management Agreement relates, except a loss
resulting from willful misfeasance, bad faith or gross negligence on the part
of SFM in the performance of its duties or from reckless disregard of its
duties and obligations thereunder.

The continuance of the Management Agreement must be specifically approved at
least annually (i) by the vote of a majority of the Trustees or by the vote of
a majority of the outstanding voting securities of that Fund, and (ii) by the
vote of a majority of the Trustees of the Trust who are not parties to the
Management Agreement or an "interested person" (as that term is defined in the
1940 Act) of any party thereto, cast in person at a meeting called for the
purpose of voting on such approval.  The Management Agreement is terminable at
any time as to any Fund without penalty by the Trustees of the Trust, by a vote
of a majority of the outstanding shares of the Fund or by SFM on not less than
30 days nor more than 60 days written notice.

   
SFM, a wholly owned subsidiary of SEI Corporation ("SEI"), was organized as a
Delaware corporation in 1969 and has its principal business offices at 680 East
Swedesford Road, Wayne, PA  19087-1658.  Alfred P. West, Jr., Henry H. Greer
and Carmen V. Romeo constitute the Board of Directors of SFM and SEI Financial
Services Company (the "Distributor").  Mr. West is the Chairman of the Board
and Chief Executive Officer of SFM, the Distributor and of SEI.  Mr. Greer is
the President and Chief Operating Officer of SFM, the Distributor and of SEI.
SEI and its subsidiaries are leading providers of funds evaluation services,
trust accounting systems, and brokerage and information services to financial
institutions, institutional investors and money managers.  SFM also serves as
administrator to the following other mutual funds:  The Achievement Funds
Trust, The Advisors' Inner Circle Fund, The Arbor Fund, ARK Funds, Bishop
Street Funds, CoreFunds, Inc., CrestFunds, Inc., CUFUND, First American Funds,
Inc., First American Investment Funds, Inc., FMB Funds, Inc., Insurance
Investment Products Trust, Inventor Funds, Inc., Marquis Funds(R), Monitor
Funds, Morgan Grenfell Investment Trust, The PBHG Funds, Inc., The Pillar
Funds, Rembrandt Funds(R), 1784 Funds, SEI Asset Allocation Trust, SEI Daily
Income Trust, SEI Index Funds, SEI Institutional Managed Trust, SEI
International Trust, SEI Liquid Asset Trust, SEI Tax Exempt Trust, Stepstone
Funds, STI Classic Funds and STI Classic Variable Trust.
    

If operating expenses of any Fund exceed limitations established by certain
states, SFM will pay such excess.  SFM will not be required to bear expenses of
any Fund to an extent which would result in the Fund's inability to qualify as
a regulated investment company under provisions of the Internal Revenue Code.
The term "expenses" is defined in such laws or regulations, and generally
excludes brokerage commissions, distribution expenses, taxes, interest and
extraordinary expenses.

DISTRIBUTION

   
    



                                      S-18
<PAGE>   68


   
The Distributor, a wholly-owned subsidiary of SEI, and the Trust are parties to
a distribution agreement ("Distribution Agreement").  The Distribution
Agreement shall be reviewed and ratified at least annually (i) by the Trust's
Trustees or by the vote of a majority of the outstanding shares of the Trust,
and (ii) by the vote of a majority of the Trustees of the Trust who are not
parties to the Distribution Agreement or interested persons (as defined in the
1940 Act) of any party to the Distribution Agreement, cast in person at a
meeting called for the purpose of voting on such approval.  The Distribution
Agreement will terminate in the event of any assignment, as defined in the 1940
Act, and is terminable with respect to a particular Fund on not less than sixty
days' notice by the Trust's Trustees, by vote of a majority of the outstanding
shares of such Fund or by the Distributor.  The Distributor will receive no
compensation for the distribution of Fund shares.
    

   
    

TRUSTEES AND OFFICERS OF THE TRUST

   
The Trustees and executive officers of the Trust, their respective dates of
birth and their principal occupations for the last five years are set forth
below.  Each may have held other positions with the named companies during that
period.  Unless otherwise noted, the business address of each Trustee and
executive officer is SEI Financial Management Corporation, 680 East Swedesford
Road, Wayne, PA 19087.  Certain trustees and officers of the Trust also serve
as trustees and officers of some or all of the following:  The Achievement
Funds Trust; The Advisors' Inner Circle Fund; The Arbor Fund; ARK Funds; Bishop
Street Funds; CoreFunds, Inc.; CrestFunds, Inc.; CUFUND; First American Funds,
Inc.; First American Investment Funds, Inc.; FMB Funds, Inc.; Insurance
Investment Products Trust; Inventor Funds, Inc.; Marquis Funds(R); Monitor
Funds; Morgan Grenfell Investment Trust; The Pillar Funds; The PBHG Funds,
Inc.; Rembrandt Funds(R); SEI Asset Allocation Trust; SEI Daily Income Trust;
SEI Index Funds; SEI Institutional Managed Trust; SEI International Trust; SEI
Liquid Asset Trust; SEI Tax Exempt Trust; 1784 Funds; Stepstone Funds; STI
Classic Funds; and STI Classic Variable Trust, each of which is an open-end
management investment company managed by SEI Financial Management Corporation
and, except for Rembrandt Funds(R), distributed by SEI Financial Services
Company.
    

   
ROBERT A. NESHER (8/17/46) - Chairman of the Board of Trustees* - Retired since
1994.  Executive Officer - Executive Vice President of SEI, 1986-1994.
Director and Executive Vice President of the Manager and Executive Vice
President of the Distributor, September, 1981-1994.
    

   
RICHARD F. BLANCHARD (1/21/20) - Trustee** - P.O. Box 76, Canfield Road,
Convent Station, NJ 07961.  Private Investor.  Director of AEA Investors Inc.
(acquisition and investment firm) June 1981-86, Director of Baker Hughes Corp.
(oil service company) 1976-88.  Director of Imperial Clevite Industries
(transportation equipment company) 1981-87.  Executive Vice President of
American Express Company (financial services company), responsible for the
investment function, before June 1981.
    





                                      S-19
<PAGE>   69


   
WILLIAM M. DORAN (5/26/40) - Trustee* - 2000 One Logan Square, Philadelphia, PA
19103.  Partner of Morgan, Lewis & Bockius LLP, counsel to the Trust, Manager
and Distributor, Director and Secretary of SEI and Secretary of the Manager and
Distributor.
    

   
F. WENDELL GOOCH (12/3/32) - Trustee** - P.O. Box 190, Paoli, IN 47454.
President, Orange County Publishing Co., Inc., since October 1981.  Publisher
of the Paoli News and the Paoli Republican and Editor of the Paoli Republican
since January 1981; President, H & W Distribution, Inc. since July 1984.
Executive Vice President, Trust Department, Harris Trust and Savings Bank and
Chairman of the Board of Directors of The Harris Trust Company of Arizona
before January 1981.  Trustee of STI Classic Funds.
    

   
FRANK E. MORRIS (12/30/23) - Trustee** - 105 Walpole Street, Dover, MA  02030.
Retired since 1990.  Peter Drucker Professor of Management, Boston College
since 1989.  President, Federal Reserve Bank of Boston, 1968-1988.  Trustee of
The Arbor Fund, Marquis Funds, Advisors' Inner Circle Fund, Advisors' Inner
Circle Fund II, Inc. and FFB Lexicon Funds.
    

   
JAMES M. STOREY (4/12/31) - Trustee** - Ten Post Office Square, Boston, MA,
02109.  Retired since 1993.  Formerly Partner of Dechert Price & Rhoads (law
firm).
    

   
DAVID LEE (4/16/52) - President, Chief Executive Officer - Senior Vice
President of the Distributor since 1993.  Vice President of the Distributor
since 1991.  President, GW Sierra Trust Funds prior to 1991.
    

   
KATHRYN L. STANTON (11/18/58) - Vice President, Assistant Secretary - Vice
President, Assistant Secretary of SEI, the Manager and Distributor since 1994.
Associate, Morgan, Lewis & Bockius LLP (law firm), 1989-1994.
    

   
SANDRA K. ORLOW (10/18/53) - Vice President, Assistant Secretary - Vice
President and Assistant Secretary of the Manager and Distributor since 1988.
Corporate Legal Assistant, Omni Exploration (oil and gas investment) prior to
1983.
    

   
KEVIN P. ROBINS (4/15/61) - Vice President, Assistant Secretary - Senior Vice
President and General Counsel of SEI, the Manager and the Distributor, and
Assistant Secretary of SEI since 1994.  Secretary of the Manager and the
Distributor since 1994.  Vice President and Assistant Secretary of SEI, the
Manager and Distributor, 1992-1994.  Associate, Morgan, Lewis & Bockius LLP
(law firm) prior to 1992.
    

   
JOSEPH M. LYDON (9/27/59) - Vice President, Assistant Secretary - Director of
Business Administration of Fund Resources, SEI Corporation since 1995.  Vice
President of Fund Group and Vice President of Dreman Value Management
(investment adviser), President of Dreman Financial Services, Inc. prior to
1995.
    

   
TODD CIPPERMAN (2/14/66) - Vice President, Assistant Secretary - Vice President
and Assistant Secretary of SEI, the Manager and the Distributor since 1995.
Associate, Dewey Ballantine (law firm), 1994-1995.  Associate, Winston & Strawn
(law firm), 1991-1994.
    

   
JEFFREY A. COHEN (4/22/61) - Controller, Chief Financial Officer - CPA, Vice
    





                                      S-20
<PAGE>   70
   
President, International and Domestic Funds Accounting, SEI Corporation since
1991.  Audit Manager, Price Waterhouse prior to 1991.
    

   
RICHARD W. GRANT (10/25/45) - Secretary - 2000 One Logan Square,  Philadelphia,
PA 19103, Partner, Morgan, Lewis & Bockius LLP, counsel to the Trust, Manager
and Distributor.
    

- ------------------------------------------------------
   
(*)      Messrs. Nesher and Doran are Trustees who may be deemed to be
         "interested persons" of the Trust as the term is defined in the
         Investment Company Act of 1940 (the "1940 Act").
(**)     Messrs. Blanchard, Gooch, Morris and Storey serve as members of the
         Audit Committee of the Trust.
    


   
The Trustees and officers of the Trust own, as a group, less than 1% of the
outstanding shares of the Trust.  The Trust pays the fees for unaffiliated
Trustees.  Compensation of officers and affiliated Trustees of the Trust is
paid by the Manager.
    


   
                               COMPENSATION TABLE
    

   
<TABLE>
<CAPTION>
                                  Aggregate                                                       Total Compensation
      Name of Person,         Compensation from         Pension or         Estimated Annual      From Registrant and
          Position           Registrant for the    Retirement Benefits       Benefits Upon      Trust Complex Paid to
                                                    Accrued as Part of        Retirement           Trustees for the
                                                      Fund Expenses                               Fiscal Year Ended
      ---------------        ------------------    -------------------     ----------------      --------------------
    <S>                          <C>                       <C>                    <C>          <C>
    Richard Blanchard            $14,521.37                $0                     $0           $14,521.37 for
                                                                                               services on 7 boards
                                            
    F. Wendell Gooch             $14,521.37                $0                     $0           $14,521.37 for
                                                                                               services on 7 boards
                                            
    Frank E. Morris              $14,521.37                $0                     $0           $14,521.37 for
                                                                                               services on 7 boards
                                            
    James Storey                 $14,521.37                $0                     $0           $14,521.37 for
                                                                                               services on 7 boards
                                            
    Robert A. Nesher*                $0                    $0                     $0           $0 for services on 7
                                                                                               boards
                                            
    William M. Doran*                $0                    $0                     $0           $0 for services on 7
                                                                                               boards
</TABLE>
    

- ------------------------------------------------------
   
*   Trustees who are "interested persons" as defined in the 1940 Act.
    


PERFORMANCE

From time to time, each Fund may advertise yield and/or total return. These
figures will be based on historical earnings and are not intended to indicate
future performance.

The yield of a Fund refers to the annualized income generated by an investment
in the Fund over a specified 30-day period. The yield is calculated by assuming
that the income generated by the investment during that period generated each
period over one year and is shown as a percentage of the investment. In
particular, yield will be calculated according to the following formula: Yield
= 2[(((a-b)/cd) + 1)6-1], where a = dividends and interest earned during the
period; b = expenses accrued for the period (net of





                                      S-21
<PAGE>   71
reimbursement); c = the current daily number of shares outstanding during the
period that were entitled to receive dividends; and d = the maximum offering
price per share on the last day of the period.  

The total return of a Fund refers to the average compounded rate of return to a
hypothetical investment for designated time periods (including, but not limited
to, the period from which the Fund commenced operations through the specified 
date), assuming that the entire investment is redeemed at the end of each 
period. In particular, total return will be calculated according to the 
following formula: P(1 + T)(n) = ERV, where P = a hypothetical initial payment 
of $1,000; T = average annual total return; n = number of years; and ERV = 
ending redeemable value of a hypothetical $1,000 payment made at the beginning 
of the designated time period as of the end of such period.

   
    

The Funds may, from time to time, compare their performance to other mutual
funds tracked by mutual fund rating services, to broad groups of comparable
mutual funds or to unmanaged indices which may assume investment of dividends
but generally do not reflect deductions for administrative and management
costs.

From time to time the Trust may include the names of clients of the Money
Managers in advertisements and/or sales literature for the Trust.

PURCHASE AND REDEMPTION OF SHARES

The purchase and redemption price of shares is the net asset value of each
share.  A Fund's securities are valued by SFM pursuant to valuations provided
by an independent pricing service (generally the last quoted sale price). Fund
securities listed on a securities exchange for which market quotations are
available are valued at the last quoted sale price on each Business Day
(defined as days on which the New York Stock Exchange is open for business) or,
if there is no such reported sale, at the most recently quoted bid price.
Unlisted securities for which market quotations are readily available are
valued at the most recently quoted bid price. The pricing service may also use
a matrix system to determine valuations. This system considers such factors as
security prices, yields, maturities, call features, ratings and developments
relating to specific securities in arriving at valuations. The procedures of
the pricing service and its valuations are reviewed by the officers of the
Trust under the general supervision of the Trustees.

It is currently the Trust's policy to pay all redemptions in cash.  The Trust
retains the right, however, to alter this policy to provide for redemptions in
whole or in part by a distribution in kind of readily marketable





                                      S-22

<PAGE>   72

securities held by a Fund in lieu of cash.  Shareholders may incur brokerage
charges on the sale of any such securities so received in payment of
redemptions.  However, a shareholder will at all times be entitled to aggregate
cash redemptions from all Funds of the Trust during any 90-day period of up to
the lesser of $250,000 or 1% of the Trust's net assets.

A gain or loss for federal income tax purposes may be realized by a taxable
shareholder upon an in-kind redemption depending upon the shareholder's basis
in the shares of the Trust redeemed.

The Trust reserves the right to suspend the right of redemption and/or to
postpone the date of payment upon redemption for any period during which
trading on the New York Stock Exchange is restricted, or during the existence
of an emergency (as determined by the SEC by rule or regulation) as a result of
which disposal or evaluation of the fund securities is not reasonably
practicable, or for such other periods as the SEC may by order permit.  The
Trust also reserves the right to suspend sales of shares of the Funds for any
period during which the New York Stock Exchange, the Manager, the Distributor,
the Money Managers and/or the Custodian are not open for business.

   

    

   
The securities may be traded on foreign markets on days other than Business
Days and the net asset value of a Fund may be computed on days when such
foreign markets are closed.  In addition, foreign markets may close at times
other than 4:00 p.m. Eastern time.  As a consequence, the net asset value of a
share of a Fund may not reflect all events that may affect the value of the
Fund's foreign securities unless the Money Managers determine that such events
materially affect net asset value in which case net asset value will be
determined by consideration of other factors.
    

TAXES

The following is only a summary of certain additional federal tax
considerations generally affecting the Funds and their shareholders that are
not described in the Funds' Prospectus.  No attempt is made to present a
detailed explanation of the federal, state or local tax treatment of the Funds
or their shareholders and the discussion here and in the Funds' Prospectus is
not intended as a substitute for careful tax planning.

This discussion of federal income tax consequences is based on the Code and the
regulations issued thereunder as in effect on the date of this Statement of
Additional Information.  New legislation, as well as administrative changes or
court decisions, may significantly change the conclusions expressed herein, and
may have a retroactive effect with respect to the transactions contemplated
herein.

Each Fund is treated as a separate entity for federal income tax purposes and
is not combined with the Trust's other Funds.  Each Fund intends to qualify as
a regulated investment company ("RIC") under Subchapter M of the Code so that
it will be relieved of federal income tax on that part of its income that is
distributed to shareholders.  In order to qualify for treatment as a RIC, a
Fund must distribute annually to its shareholders at least 90% of its
investment company taxable income (generally, net investment income plus the
excess, if any, of net short-term capital gain over net long-term capital
losses) ("Distribution Requirement") and also must meet several additional
requirements. Among these requirements are the following:  (i) at least 90% of
a Fund's gross income each taxable year must be derived from dividends,
interest, payments with respect to securities loans, and gains from the sale or
other disposition of stock, securities or foreign currencies, or other income
derived with respect to its business of investing in such stock





                                      S-23
<PAGE>   73

or securities or currencies; (ii) less than 30% of a Fund's gross income each
taxable year may be derived from the sale or other disposition of stock,
securities or certain other assets held for less than three months; (iii) at
the close of each quarter of a Fund's taxable year, at least 50% of the value
of its total assets must be represented by cash and cash items, U.S. government
securities, securities of other RICs and other securities, with such other
securities limited, in respect of any one issuer, to an amount that does not
exceed 5% of the value of a Fund's assets and that does not represent more than
10% of the outstanding voting securities of such issuer; and (iv) at the close
of each quarter of a Fund's taxable year, not more than 25% of the value of its
assets may be invested in securities (other than U.S. government securities or
the securities of other RICs) of any one issuer or of two or more issuers which
the Fund controls and which are engaged in the same, similar, or related trades
or businesses.

Notwithstanding the Distribution Requirement described above, which only
requires a Fund to distribute at least 90% of its annual investment company
taxable income and does not require any minimum distribution of net capital
gain, a Fund will be subject to a nondeductible 4% federal excise tax to the
extent it fails to distribute by the end of any calendar year at least 98% of
its ordinary income for that year and 98% of its capital gain net income (the
excess of short- and long-term capital gain over short- and long-term capital
loss) for the one-year period ending on October 31 of that year, plus certain
other amounts.  Each Fund intends to make sufficient distributions to avoid
liability for the federal excise tax.  A Fund may in certain circumstances be
required to liquidate Fund investments in order to make sufficient
distributions to avoid federal excise tax liability at a time when the
investment advisor might not otherwise have chosen to do so, and liquidation of
investments in such circumstances may affect the ability of a Fund to satisfy
the requirements for qualification as a RIC.

Any gain or loss recognized on a sale, exchange or redemption of shares of a
Fund by a shareholder who is not a dealer in securities generally will be
treated as a long-term capital gain or loss if the shares have been held for
more than twelve months and otherwise will be treated as a short-term capital
gain or loss.  However, if shares on which a shareholder has received a capital
gains distribution are subsequently sold, exchanged or redeemed and such shares
have been held for six months or less, any loss recognized will be treated as a
long-term capital loss to the extent of the capital gain distribution.

If a Fund fails to qualify as a RIC for any year, all of its income will be
subject to federal income tax at corporate rates, and its distributions
(including capital gain distributions) generally will be taxable as ordinary
income dividends to its shareholders, subject to the dividends received
deduction for eligible corporate shareholders.

A Fund will be required in certain cases to withhold and remit to the United
States Treasury 31% of amounts payable to any shareholder who (1) has provided
the Fund either an incorrect tax identification number or no number at all, (2)
who is subject to backup withholding by the Internal Revenue Service for
failure to properly report payments of interest or dividends, or (3) who has
failed to certify to the Fund that such shareholder is not subject to backup
withholding.

Dividends and interest received by a Fund may be subject to income, withholding
or other taxes imposed by foreign countries and United States possessions that
would reduce the yield on a Fund's securities.  Tax conventions between certain
countries and the United States may reduce or eliminate these taxes.  Foreign
countries generally do not impose taxes on capital gains with respect to
investments by foreign investors.  If more than 50% of the value of a Fund's
total assets at the close of its taxable year consists of securities of foreign
corporations, a Fund will be eligible to, and will, file an election with the
Internal Revenue Service that will enable shareholders, in effect, to receive
the benefit of the foreign tax credit with respect to any foreign and United
States possessions income taxes paid by a Fund.  Pursuant to the election, a
Fund will treat those taxes as dividends paid to its shareholders.  Each
shareholder will be required to include a proportionate share of those taxes in
gross income as income received from a foreign source and must treat the amount
so included as if the shareholder had paid the foreign tax directly.  The
shareholder may then





                                      S-24

<PAGE>   74

either deduct the taxes deemed paid by him or her in computing his or her
taxable income or, alternatively, use the foregoing information in calculating
the foreign tax credit (subject to significant limitations) against the
shareholder's federal income tax.  If a Fund makes the election, it will report
annually to its shareholders the respective amounts per share of the Fund's
income from sources within, and taxes paid to, foreign countries and United
States possessions.

STATE TAXES

A Fund is not liable for any income or franchise tax in Massachusetts if it
qualifies as a RIC for federal income tax purposes. Distributions by a Fund to
shareholders and the ownership of shares may be subject to state and local
taxes.  Shareholders should consult their own tax advisers regarding the affect
of federal, state and local taxes in their own individual circumstances.

FUND TRANSACTIONS

   
Money Managers make decisions to buy or sell securities independently from one
another.  Thus, one Money Manager could sell a security at approximately the
same time another Money Manager for the same Fund is purchasing the same type
of security.  In addition, when a Money Manager's services are terminated
and/or a new Money Manager is retained, the new Money Manager may significantly
restructure the Fund's portfolio.  These practices may increase the Funds'
portfolio turnover rates, realization of gains or losses, brokerage commissions
and other transaction based costs.  
    

The Trust has no obligation to deal with any dealer or group of dealers in the
execution of transactions in fund securities. Subject to policies established
by the Trustees, the Money Managers are responsible for placing orders to
execute Fund transactions. In placing orders, it is the Trust's policy to seek
to obtain the best net results taking into account such factors as price
(including the applicable dealer spread), size, type and difficulty of the
transaction involved, the firm's general execution and operational facilities,
and the firm's risk in positioning the securities involved. While the Money
Managers generally seek reasonably competitive spreads or commissions, the
Trust will not necessarily be paying the lowest spread or commission available.
The Trust will not purchase fund securities from any affiliated person acting
as principal except in conformity with the regulations of the SEC.

The money market securities in which a Fund invests are traded primarily in the
over-the-counter market.  Bonds and debentures are usually traded
over-the-counter, but may be traded on an exchange.  Where possible, the Money
Managers will deal directly with the dealers who make a market in the
securities involved except in those circumstances where better prices and
execution are available elsewhere.  Such dealers usually are acting as
principal for their own account.  On occasion, securities may be purchased
directly from the issuer.  Money market securities are generally traded on a
net basis and do not normally involve either brokerage commissions or transfer
taxes.  The cost of executing fund securities transactions of a Fund will
primarily consist of dealer spreads and underwriting commissions.

   
It is expected that the Funds may execute brokerage or other agency
transactions through the Distributor, a registered broker-dealer, for a
commission, in conformity with the 1940 Act, the Securities Exchange Act of
1934, as amended, and rules of the SEC.  Under these provisions, the
Distributor is permitted to receive and retain compensation for effecting fund
transactions for a Fund on an exchange.  These provisions further require that
commissions paid to the Distributor by the Trust for exchange transactions not
exceed "usual and customary" brokerage commissions. The rules define "usual and
customary" commissions to include amounts which are "reasonable and fair
compared to the commission, fee or other remuneration received or to be
received by other brokers in connection with
    





                                      S-25

<PAGE>   75

comparable transactions involving similar securities being purchased or sold on
a securities exchange during a comparable period of time." In addition, a Fund
may direct commission business to one or more designated broker-dealers,
including the Distributor, in connection with such broker-dealer's payment of
certain of the Fund's expenses.  The Trustees, including those who are not
"interested persons" of the Trust, have adopted procedures for evaluating the
reasonableness of commissions paid to the Distributor and will review these
procedures periodically.

Since the Trust does not market its shares through intermediary brokers or
dealers, it is not the Trust's practice to allocate brokerage or principal
business on the basis of sales of its shares which may be made through such
firms.  However, the Fund's Money Managers may place fund orders with qualified
broker-dealers who recommend the Trust to clients, and may, when a number of
brokers and dealers can provide best price and execution on a particular
transaction, consider such recommendations by a broker or dealer in selecting
among broker-dealers.

The Trust does not expect to use one particular dealer, but a Fund's Money
Managers may, consistent with the interests of the Fund, select brokers on the
basis of the research services they provide to the Fund's Money Managers.  Such
services may include analysis of the business or prospects of a company,
industry or economic sector or statistical and pricing services.  Information
so received by the Money Manager will be in addition to and not in lieu of the
services required to be performed by a Fund's Money Managers under the Advisory
and/or Sub-Advisory Agreements.  If in the judgement of a Fund's Money Managers
the Funds, or other accounts managed by the Fund's Money Managers, will be
benefitted by supplemental research services, the Fund's Money Managers are
authorized to pay brokerage commissions to a broker furnishing such services
which are in excess of commissions which another broker may have charged for
effecting the same transaction.  The expenses of a Fund's Money Managers will
not necessarily be reduced as a result of the receipt of such supplemental
information.

   
In addition, SFM has adopted a policy respecting the receipt of research and
related products and services in connection with transactions effected for
Funds operating within the "Manager of Managers" structure.  Under this policy,
SFM and the various firms that serve as sub-advisers to certain Funds of the
Trust, in the exercise of joint investment discretion over the assets of a
Fund, will direct a substantial portion of a Fund's brokerage to the
Distributor in consideration of the Distributor's provision of research and
related products to SFM for use in performing its advisory responsibilities.
All such transactions directed to the Distributor must be accomplished in a
manner that is consistent with the Trust's policy to achieve best net results,
and must comply with the Trust's procedures regarding the execution of
transactions through affiliated brokers.
    

DESCRIPTION OF SHARES

The Declaration of Trust authorizes the issuance of an unlimited number of
shares of each Fund, each of which represents an equal proportionate interest
in that Fund. Each share upon liquidation entitles a shareholder to a pro rata
share in the net assets of that Fund.  Shareholders have no preemptive rights.
The Declaration of Trust provides that the Trustees of the Trust may create
additional series of shares or separate classes of funds.  Share certificates
representing the shares will not be issued.


LIMITATION OF TRUSTEES' LIABILITY

The Declaration of Trust provides that a Trustee shall be liable only for his
or her own willful defaults and, if reasonable care has been exercised in the
selection of officers, agents, employees or administrators, shall not be liable
for any neglect or wrongdoing of any such person. The Declaration of Trust also
provides that the Trust will indemnify its Trustees and officers against
liabilities and expenses incurred in connection with





                                      S-26
<PAGE>   76

actual or threatened litigation in which they may be involved because of their
offices with the Trust unless it is determined in the manner provided in the
Declaration of Trust that they have not acted in good faith in the reasonable
belief that their actions were in the best interests of the Trust.  However,
nothing in the Declaration of Trust shall protect or indemnify a Trustee
against any liability for his or her willful misfeasance, bad faith, gross
negligence or reckless disregard of his or her duties.

VOTING

Where the Prospectus for the Funds or this Statement of Additional Information
state that an investment limitation or a fundamental policy may not be changed
without shareholder approval, such approval means the vote of (i) 67% or more
of the Fund's shares present at a meeting if the holders of more than 50% of
the outstanding shares of the Fund are present or represented by Proxy, or (ii)
more than 50% of the Fund's outstanding shares, whichever is less.

SHAREHOLDER LIABILITY

The Trust is an entity of the type commonly known as a "Massachusetts business
trust."  Under Massachusetts law, shareholders of such a Trust could, under
certain circumstances, be held personally liable as partners for the
obligations of the Trust.  Even if, however, the Trust were held to be a
partnership, the possibility of the shareholders' incurring financial loss for
that reason appears remote because the Trust's Declaration of Trust (i)
contains an express disclaimer of shareholder liability for obligations of the
Trust and requires that notice of such disclaimer be given in each agreement,
obligation or instrument entered into or executed by or on behalf of the Trust
or the Trustees, and (ii) provides for indemnification out of the Trust
property for any shareholders held personally liable for the obligations of the
Trust.





                                      S-27
<PAGE>   77

                       REPORT OF INDEPENDENT ACCOUNTANTS

To the Shareholders and Board of Directors
  of SEI Institutional Investments Trust:


We have audited the accompanying Statement of Assets and Liabilities of SEI
Institutional Investments Trust (comprised of the Large Cap Fund, Small Cap
Fund, Core Fixed Income Fund, High Yield Bond Fund, International Fixed Income
Fund, Emerging Markets Equity Fund, and International Equity Fund) as of April
16, 1996.  This financial statement is the responsibility of the Trust's
management.  Our responsibility is to express an opinion on this financial
statement based on our audit.

We conducted our audit in accordance with generally accepted auditing standards.
Those standards require that we plan and perform the audit to obtain reasonable
assurance about whether the financial statement is free of material
misstatement.  An audit also includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statement.  An audit
also includes assessing the accounting principles used and significant estimates
made by management, as well as evaluating the overall financial statement
presentation.  We believe that our audit provides a reasonable basis for our
opinion.

In our opinion, the financial statement referred to above presents fairly, in
all material respects, the financial position of SEI Institutional Investments
Trust as of April 16, 1996 in conformity with generally accepted accounting
principles.


/s/ COOPERS & LYBRAND L.L.P.
- ----------------------------
COOPERS & LYBRAND L.L.P.


2400 Eleven Penn Center
Philadelphia, Pennsylvania
April 22, 1996
<PAGE>   78
SEI Institutional Investments Trust
Statements of Assets and Liabilities
as of April 16, 1996



<TABLE>
<CAPTION>
                                                          ----------------------------------------------------------------
                                                          High            International     Emerging         International
                                                          Yield Bond      Fixed Income      Markets Equity          Equity
                                                          Fund            Fund              Fund                      Fund
                                                          ----------------------------------------------------------------
<S>                                                       <C>             <C>               <C>                     <C>
ASSETS:                                                                                                                  
   Cash                                                      $100            $100              $100                   $100
   Deferred Organizational Costs                            9,000           9,000             9,000                  9,000
                                                          ----------------------------------------------------------------
                                                                                                                          
   Total Assets                                             9,100           9,100             9,100                  9,100
                                                          ----------------------------------------------------------------
                                                                                                                          
LIABILITIES:                                                                                                              
   Due to Manager                                           9,000           9,000             9,000                  9,000
                                                          ----------------------------------------------------------------
                                                                                                                          
NET ASSETS:                                                                                                               
   Fund Shares (unlimited authorization-no par value)                                                                     
     based on 10, 10, 10 and 10 outstanding shares                                                                         
     of beneficial interest, respectively                    $100            $100              $100                   $100
                                                          ----------------------------------------------------------------
                                                                                                                          
NET ASSET VALUE, OFFERING PRICE, AND                                                                                      
   REDEMPTION PRICE PER SHARE                              $10.00          $10.00            $10.00                 $10.00
                                                          ================================================================
</TABLE>


The accompanying notes are an integral part of the financial statements.

<PAGE>   79
SEI Institutional Investments Trust
Statements of Assets and Liabilities
As of April 16, 1996



<TABLE>
<CAPTION>
                                                           ------------------------------------------
                                                            Large           Small           Core     
                                                             Cap             Cap         Fixed Income
                                                            Fund            Fund            Fund     
                                                           ------------------------------------------
<S>                                                        <C>             <C>               <C>      
ASSETS:                                                                                              
   Cash                                                      $100            $100           $99,400 
   Deferred Organizational Costs                            9,000           9,000             9,000  
                                                           ------------------------------------------
                                                                                                     
   Total Assets                                             9,100           9,100           108,400  
                                                           ------------------------------------------
                                                                                                     
LIABILITIES:                                                                                         
   Due to Manager                                           9,000           9,000             9,000  
                                                           ------------------------------------------
                                                                                                     
NET ASSETS:                                                                                          
   Fund Shares (unlimited authorization-no par value)                                                
     based on 10, 10 and 9,940 outstanding shares                                                    
     of beneficial interest, respectively                    $100            $100           $99,400  
                                                           ------------------------------------------
                                                                                                     
NET ASSET VALUE, OFFERING PRICE, AND                                                                 
   REDEMPTION PRICE PER SHARE                              $10.00          $10.00            $10.00 
                                                           ==========================================
</TABLE>


The accompanying notes are an integral part of the financial statements. 

<PAGE>   80
SEI INSTITUTIONAL INVESTMENTS TRUST
NOTES TO FINANCIAL STATEMENTS

1.  ORGANIZATION:

SEI Institutional Investments Trust (the "Trust") was organized as a
Massachusetts business trust under a Declaration of Trust dated March 1, 1995.
The Trust is registered under the Investment Company Act of 1940, as amended,
as an open-end management investment company with seven funds: Large Cap Fund,
Small Cap Fund, Core Fixed Income Fund, High Yield Bond Fund, International
Fixed Income Fund, Emerging Markets Equity Fund and the International Equity
Fund (collectively the "Funds", and each of these, a "Fund"). All of these
Funds are diversified funds with the exception of the International Fixed
Income Fund, which is non-diversified. The Funds' prospectus provides a
description of each Fund's investment objectives, policies and strategies. The
assets of each fund are segregated, and a shareholder's interest is limited to
the fund in which shares are held. The Trust has not commenced operation except
those related to organizational matters and the sale of initial shares of
beneficial interest to SEI Financial Management Corporation ("SFM") on April 16,
1996.

2.  ORGANIZATIONAL COSTS AND TRANSACTIONS WITH AFFILIATES:

Organizational costs have been capitalized by the Trust and will be amortized
on a straight line basis over a period of sixty months commencing with
operations. In the event any of the initial shares of the Trust are redeemed by
any holder thereof during the period that the Trust is amortizing its
organizational costs, the redemption proceeds payable to the holder thereof by
the Trust will be reduced by the unamortized organizational costs in the same
ratio as the number of initial shares being redeemed bears to the number of
initial shares outstanding at the time of redemption. These costs include legal
fees of approximately $50,000 for organizational work performed by a law firm
of which an officer of the Trust is a Partner.

Certain officers of the Trust are also officers of SFM and/or SEI Financial
Services Company. The Trust pays each unaffiliated Trustee an annual fee for
attendance of quarterly, interim and committee meetings. Compensation of
officers and affiliated Trustees is paid by the SFM.

3.  MANAGEMENT AND DISTRIBUTION AGREEMENTS:

The Trust intends to enter into the following service agreements:

Under an Investment Advisory Agreement with the Trust, SFM will act as
investment adviser to each Fund. For its investment advisory services to the
Trust, SFM will receive an annual fee which is calculated daily and paid
monthly at the following annual rates (shown as a percentage of the average
daily net assets of each Fund): Large Cap Fund, 0.40%; Small Cap Fund, 0.65%;
Core Fixed Income Fund, 0.30%; High Yield Bond Fund; 0.49%; International Fixed
Income Fund, 0.45%; Emerging Markets Equity fund, 1.05% and International Equity
Fund, 0.65%. SFM has agreed, on a voluntary basis, to waive all or a portion 
of its investment advisory fee. In addition, SFM reserves the right to 
terminate its waivers at any time in its full discretion.
<PAGE>   81
SEI INSTITUTIONAL INVESTMENTS TRUST
NOTES TO FINANCIAL STATEMENTS-CONCLUDED

Under the Administration Agreement with the Trust, SFM or an affiliate (the
"Administrator") will provide the Trust with overall management services, and
act as transfer agent, dividend disbursing agent and shareholder servicing
agent. For its services, the Administrator will receive an annual fee which is
calculated daily and paid monthly at an annual rate of .05% of the average
daily net assets of each Fund. The Administrator has agreed on a voluntary
basis, to waive all or a portion of its administration fee and/or reimburse
other expenses. In addition, the Administrator reserves the right to terminate
its waivers and/or reimbursements at any time in its full discretion.

The Trust and SEI Financial Services Company ("SFS") intend to enter into a
Distribution agreement pursuant to which SFS will provide distribution services
to the Trust. SFS will not be compensated for distribution services provided to
the Trust.

<PAGE>   82
SEI INSTITUTIONAL INVESTMENTS TRUST - DEFERRED ORGANIZATIONAL COSTS


Estimated as of 4/16/96

Legal                         50,000
Printing                      10,000
Auditing                       3,000
                          
Total                         63,000


Estimated amount allocated
 to each portfolio             9,000

<PAGE>   83
                          PART C. OTHER INFORMATION


Item 24.  Financial Statements and Exhibits:

   (a) Not Applicable


   (b) Additional Exhibits:

   
   (1)    Registrant's Declaration of Trust is incorporated herein by
          reference to Registrant's Registration Statement on Form N-1A (File 
          No. 33-58041), filed with the Securities and Exchange Commission on 
          March 10, 1995.
   (2)    Registrant's By-Laws are incorporated herein by reference to
          Registrant's Registration Statement on Form N-1A (File No. 33-58041),
          filed with the Securities and Exchange Commission on March 10, 1995.
   (3)    Not Applicable.
   (4)    Not Applicable.
   (5)(a) Form of Investment Advisory Agreement between the Trust and SEI
          Financial Management Corporation is filed herewith.
   (5)(b) Form of Investment Sub-Advisory Agreement between the Trust
          and 1838 Investment Advisors, L.P. with respect to the Trust's
          Small Cap Fund is filed herewith.
   (5)(c) Form of Investment Sub-Advisory Agreement between the Trust and
          Acadian Asset Management, L.P. with respect to the Trust's
          International Equity Fund is filed herewith.
   (5)(d) Form of Investment Sub-Advisory Agreement between the Trust and
          Alliance Capital Management L.P. with respect to the Trust's Large Cap
          Fund is filed herewith.
   (5)(e) Form of Investment Sub-Advisory Agreement between the Trust and
          Apodaca-Johnston Capital Management, Inc. with respect to the Trust's
          Small Cap Fund is filed herewith.
   (5)(f) Form of Investment Sub-Advisory Agreement between the Trust and
          BEA Associates with respect to the High Yield Bond Fund is filed
          herewith.
   (5)(g) Form of Investment Sub-Advisory Agreement between the Trust and
          BlackRock Financial Management, Inc. with respect to the Core Fixed
          Income Fund is filed herewith.
   (5)(h) Form of Investment Sub-Advisory Agreement between the Trust and
          Boston Partners Asset Management, L.P. with respect to the Small Cap
          Fund is filed herewith.
   (5)(i) Form of Investment Sub-Advisory Agreement between the Trust and
          Firstar Investment Research & Management Company with respect to the
          Core Fixed Income Fund is filed herewith.
   (5)(j) Form of Investment Sub-Advisory Agreement between the Trust and
          IDS Advisory Group, L.P. with respect to the Trust's Large Cap Fund is
          filed herewith.
   (5)(k) Form of Investment Sub-Advisory Agreement between the Trust and
          LSV Asset Management with respect to the Trust's Large Cap Fund is
          filed herewith.
   (5)(l) Form of Investment Sub-Advisory Agreement between the Trust
          and Mellon Equity Associates with respect to the Large Cap Fund is
          filed herewith.
   (5)(m) Form of Investment Sub-Advisory Agreement between the Trust and
          MERUS-UCA Capital Management with respect to the Large Cap Fund is
          filed herewith.
   (5)(n) Form of Investment Sub-Advisory Agreement between the Trust and
          Montgomery Asset Management, L.P. with respect to the Emerging Markets
          Equity Fund is filed herewith.
    
   (5)(o) Form of Investment Sub-Advisory Agreement between the Trust and
          Morgan Grenfell Investment Services Limited with respect to the
          International Equity Fund is filed herewith.
   (5)(p) Form of Investment Sub-Advisory Agreement between the Trust and
          Nicholas-Applegate Capital Management, Inc. with respect to the Small
          Cap Fund is filed herewith.
<PAGE>   84
   
   (5)(q) Form of Investment Sub-Advisory Agreement between the Trust and
          Provident Investment Counsel, Inc. with respect to the Large Cap Fund
          is filed herewith.
   (5)(r) Form of Investment Sub-Advisory Agreement between the Trust and
          Schroder Capital Management International Limited with respect to the
          International Equity Fund is filed herewith.
   (5)(s) Form of Investment Sub-Advisory Agreement between the Trust and
          Strategic Fixed Income L.P. with respect to the International Fixed
          Income Fund is filed herewith.
   (5)(t) Form of Investment Sub-Advisory Agreement between the Trust
          and Wall Street Associates with respect to the Small Cap Fund is
          filed herewith.
   (5)(u) Form of Investment Sub-Advisory Agreement between the Trust and
          Western Asset Management Company with respect to the Core Fixed Income
          Fund is filed herewith.
   (5)(v) Form of Administration Agreement between the Trust and SEI Fund
          Management is filed herewith.
   (6)    Form of Distribution Agreement between the Trust and SEI Financial
          Services Company is filed herewith.
   (7)    Not Applicable.
   (8)(a) Form of Custodian Agreement between the Trust and CoreStates
          Bank, N.A. with respect to the Trust's Large Cap, Small Cap, Core 
          Fixed Income and High Yield Bond Funds is filed herewith.
   (9)    Not Applicable.
  (10)    Form of Opinion and Consent of Counsel is filed herewith.
  (11)    Consent of Independent Public Accountants filed herewith.
  (12)    Not Applicable.
  (13)    Not Applicable.
  (14)    Not Applicable.
  (15)    Not Applicable.
  (16)    Performance Quotation Computation is filed herewith.


    As of ______ __, 1996
    

   
<TABLE>
<CAPTION>
                                                            NUMBER OF
                                                             RECORD
                     TITLE OF CLASS                          HOLDERS
                     --------------                          -------
      <S>                                                       <C>
      Large Cap Fund .......................................... 0
      Small Cap Fund .......................................... 0
      Core Fixed Income Fund .................................. 0
      High Yield Bond Fund .................................... 0
      International Fixed Income Fund ......................... 0
      Emerging Markets Equity Fund ............................ 0
      International Equity Fund ............................... 0
</TABLE>
    

   
    

Item 27. Indemnification:

Article VIII of the Agreement and Declaration of Trust is filed as Exhibit 1 to
the Registration Statement. Insofar as indemnification for liabilities arising
under the Securities Act of 1933 may be permitted to trustees, directors,
officers and controlling persons of the Registrant by the Registrant pursuant
to the Declaration of 




                                      2
<PAGE>   85
Trust or otherwise, the Registrant is aware that in the opinion of the
Securities and Exchange Commission, such indemnification is against public
policy as expressed in the Act and, therefore, is unenforceable. In the event
that a claim for indemnification against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by trustees, directors,
officers or controlling persons of the Registrant in connection with the
successful defense of any act, suite or proceeding) is asserted by such
trustees, directors, officers or controlling persons in connection with the
shares being registered, the Registrant will, unless in the opinion of its
counsel the matter has been settled by controlling precedent, submit to a court
of appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Act and will be governed by the final
adjudication of such issues.

Item 28. Business and Other Connections of Money Managers:

     Other business, profession, vocation, or employment of a substantial
nature in which each director or principal officer of each Money Manager is or
has been, at any time during the last two fiscal years, engaged for his own
account or in the capacity of director, officer, employee, partner or trustee
are as follows:

1838 INVESTMENT ADVISORS, L.P.

   
1838 Investment Advisors L.P. ("1838") is a money manager for Registrant's the
Small Cap Fund.  The principal business address of 1838 is 5 Radnor Corporate
Center, 100 Matsonford Road, Suite 320, Radnor, Pennsylvania 19087.  1838 is an
investment money manager registered under the Advisers Act.
    

The list required by this Item 28 of officers and directors of Acadian,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by 1838 pursuant to the Advisers Act (SEC File No. 801-33025).

ACADIAN ASSET MANAGEMENT, INC.

   
Acadian Asset Management, Inc. ("Acadian") is a money manager for the
Registrant's International Equity Fund.  The principal business address of
Acadian is 260 Franklin Street, Boston, Massachusetts 02110.  Acadian is an
investment money manager registered under the Advisers Act.
    

The list required by this Item 28 of officers and directors of Acadian,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Acadian pursuant to the Advisers Act (SEC File No. 28078).

ALLIANCE CAPITAL MANAGEMENT

   
Alliance Capital Management L.P. ("Alliance") is a money manager for the
Registrant's Large Cap Fund.  The principal business address of Alliance is
1345 Avenue of the Americas, New York, New York 10105.  Alliance is an
investment money manager registered under the Advisers Act.
    

The list required by this Item 28 of officers and directors of Alliance,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Alliance pursuant to the Advisers Act (SEC File No.
801-32361).


                                      3
<PAGE>   86
   
APODACA-JOHNSTON CAPITAL MANAGEMENT, INC.

Apodaca-Johnston Capital Management, Inc. is an investment sub-advisor for the
Registrant's Small Cap Growth Portfolio.  The principal address of
Apodaca-Johnston Capital Management, Inc. is 30 California Street, Suite 3315,
San Francisco, California 94111.  Apodaca-Johnston Capital Management, Inc. is
an investment adviser registered under the Advisers Act.

The list required by this Item 28 of officers and directors of Apodaca-Johnston
Capital Management, Inc., together with information as to any other business
profession, vacation, or employment of a substantial nature engaged in by such
officers and directors during the past two years is incorporated by reference
to Schedules A and D of Form ADV filed by Apodaca-Johnston Capital Management,
Inc. to the Advisers Act (SEC File No. 801-29032).

BEA ASSOCIATES

BEA Associates ("BEA") is the money manager for the Registrant's High Yield
Fund.  The principal business address of BEA is One Citicorp Center, 153 East
53rd Street, New York, New York 10022.  BEA is an investment money manager
registered under the Advisers Act.

The list required by this Item 28 of officers and directors of BEA, together
with information as to any other business, profession, vocation or employment
of a substantial nature engaged in by such officers and directors during the
past two years, is incorporated by reference to Schedules A and D of Form ADV
filed by BEA pursuant to the Advisers Act (SEC File No. 801-37170).

BLACKROCK FINANCIAL MANAGEMENT, INC.

BlackRock Financial Management, Inc. ("BlackRock") is a money manager for the
Registrant's Core Fixed Income Fund.  The principal business address of
BlackRock is 345 Park Avenue, 29th Floor, New York, New York 101542.
BlackRock is an investment money manager registered under the Advisers Act.

The list required by this Item 28 of officers and directors of BlackRock,
together with information as to any other business, profession, vocation or
employment of a substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by BlackRock pursuant to the Advisers Act (SEC File No.
801-48433).

BOSTON PARTNERS ASSET MANAGEMENT, L.P.

Boston Partners Asset Management, L.P. ("BPAM") is a money manager for the
Registrant's Small Cap Fund.  The principal business address of BPAM is One
Financial Center, 43rd Floor, Boston, Massachusetts 02111.  BPAM is an
investment money manager registered under the Advisers Act.

The list required by this Item 28 of officers and directors of BPAM, together
with information as to any other business, profession, vocation or employment
of a substantial nature engaged in by such officers and directors during the
past two years, is incorporated by reference to Schedules A and D of Form ADV
filed by BPAM pursuant to the Advisers Act (SEC File No. 801-49059).

FIRSTAR INVESTMENT RESEARCH & MANAGEMENT COMPANY

Firstar Investment Research & Management Company ("FIRMCO") is a money manager
for the Registrant's Core Fixed Income Fund.  The principal business address of
FIRMCO is 777 East Wisconsin Avenue, Suite 800, Milwaukee, Wisconsin 53202.
FIRMCO is an investment money manager registered under the Advisers Act.

The list required by this Item 28 of officers and directors of FIRMCO, together
with information as to any other business, profession, vocation or employment
of a substantial nature engaged in by such officers and directors during the
past two years, is incorporated by reference to Schedules A and D of Form ADV
filed by FIRMCO pursuant to the Advisers Act (SEC File No. 801-28084).

IDS ADVISORY GROUP INC.

IDS Advisory Group Inc. ("IDS") is a money manager for the Registrant's Large
Cap Fund.  The principal business address of IDS is IDS Tower 10, Minneapolis,
Minnesota 55400-0010.  IDS is an investment money manager registered under the
Advisers Act.
    


                                      4
<PAGE>   87
The list required by this Item 28 of officers and directors of IDS, together
with information as to any other business, profession, vocation or employment
of substantial nature engaged in by such officers and directors during the past
two years, is incorporated by reference to Schedules A and D of Form ADV filed
by IDS pursuant to the Advisers Act (SEC File No. 801-25943).

LSV ASSET MANAGEMENT

   
LSV Asset Management ("LSV") is a money manager for the Registrant's Large Cap
Fund.  The principal business address of LSV is 181 West Madison Street,
Chicago, Illinois  60602.  LSV is an investment money manager registered under
the Advisers Act.
    

The list required by this Item 28 of officers and directors of LSV, together
with information as to any other business, profession, vocation or employment
of substantial nature engaged in by such officers and directors during the past
two years, is incorporated by reference to Schedules A and D of Form ADV filed
by LSV pursuant to the Advisers Act (SEC File No. 801-38734).

MELLON EQUITY ASSOCIATES

   
Mellon Equity Associates ("MEA") is a money manager for the Registrant's Large
Cap Fund.  The principal business address of MEA is 500 Grant Street, Suite
3700, Pittsburgh, PA  15258.  MEA is an investment money manager registered
under the Advisers Act.

The list required by this Item 28 of officers and directors of MEA, together
with information as to any other business, profession, vocation or employment
of substantial nature engaged in by such officers and directors during the past
two years, is incorporated by reference to Schedule A and D of Form ADV filed
by MEA pursuant to the Advisers Act (SEC File No. 801-28692).


MERUS-UCA CAPITAL MANAGEMENT

MERUS-UCA Capital Management ("MERUS-UCA") is a money manager for the
Registrant's Large Cap Fund.  The principal business address of MERUS-UCA is
475 Sansom Street, San Francisco, California  94111.  MERUS-UCA is an
investment money manager registered under the Advisers Act.
    


<TABLE>
<CAPTION>
       NAME AND POSITION                                         CONNECTION WITH
    WITH INVESTMENT ADVISER       NAME OF OTHER COMPANY           OTHER COMPANY
    -----------------------       ---------------------           -------------
<S>                              <C>                                 <C>
Stanley F. Farrar                Sullivan & Cromwell                 Partner        
Director of Adviser              
                                                                                    
Kazuo Ibuki                      The Mitsubishi Bank Limited         Chairman       
Director                         
                                                                                    
Raymond E. Miles                 Univ. of California                                
Director of Adviser              School of Bus. Admin.               Dean           
                                                                                    
J. Fernado Niedbla               Infotec Development, Inc.           Chairman & CEO 
Director of Adviser              
</TABLE>


                                      5
<PAGE>   88
<TABLE>
<CAPTION>
       NAME AND POSITION                                                     CONNECTION WITH
    WITH INVESTMENT ADVISER              NAME OF OTHER COMPANY                OTHER COMPANY
    -----------------------              ---------------------                -------------
<S>                                      <C>                                 <C>

Hiroo Nozawa                             BanCal Tri-State Corporation        Chairman, President & CEO          
Director of Adviser                                                                                             
Chairman, President & CEO                                                                                       
                                                                                                                
Carl W. Robertson                        Warland Investments Company         Managing Director                  
Director of Adviser                                                                                             
                                                                                                                
Paul W. Steere                           Bogle & Gates                       Partner                            
Director of Adviser                                                                                             
                                                                                                                
Charles R. Scott                         Intermark, Inc.                     President & CEO                    
Director of Adviser                                                                                             
                                                                                                                
Henry T. Swigert                         ESCO Corporation                    Chairman                           
Director of Adviser                                                                                             
                                                                                                                
Yasuyuki Hirai                           The Mitsubishi Bank                        --                     
Director of Adviser,                                                                                            
Chief Executive Officer                                                                                         
                                                                                                                
Minoru Noda                                     --                                  --                     
Director of Adviser,                                                                                            
Vice Chairman Credit & Finance                                                                                  
                                                                                                                
Samuel L. Williams                       Hufstedler, Miller                                                     
Director of Adviser                      Kaus & Beardsley                    Partner                            
                                                                                                                
Roy A. Henderson                                --                                  --                     
Director of Advisor,                                                                                            
Chairman, Regional Banking                                                                                      
                                                                                                                
Takejiro Sneyoshi                        MBL New York Branch                 Director & General Manager         
Director of Adviser                                                                                             
                                                                                                                
Peter R. Butcher                                --                                 --                     
Executive Vice President                                                                                        
Chief Credit Officer                                                                                            
                                                                                                                
David W. Ehlers                                 --                                 --                     
Executive Vice President                                                                                        
Chief Financial Officer                                                                                         
                                                                                                                
Michael Spilsbury                               --                                 --                     
Executive Vice President                                                                                        
Resources & Services Sector                                                                                     
                                                                                                                
William R. Sweet                                --                                 --                     
Executive Vice President                                                                                        
Wholesale & International Group                                                                                 
</TABLE>


                                      6
<PAGE>   89
<TABLE>
<CAPTION>
       NAME AND POSITION                                                     CONNECTION WITH
    WITH INVESTMENT ADVISER              NAME OF OTHER COMPANY                OTHER COMPANY
    -----------------------              ---------------------                -------------
<S>                                                 <C>                              <C>
James M. Castro                                     --                               --                                        
Secretary                                                                                                      

Luke Mazor                                          --                               --                            
Senior Vice President & Manager                     
</TABLE>

MONTGOMERY ASSET MANAGEMENT, L.P.

   
Montgomery Asset Management, L.P. ("MAM") is a money manager for the
Registrant's Emerging Markets Equity Fund.  The principal business address of
MAM is 600 Montgomery Street, San Francisco, California 94111.  MAM is an
investment money manager registered under the Advisers Act.
    

The list required by this Item 28 of officers and directors of MAM, together
with information as to any other business, profession, vocation or employment
of substantial nature engaged in by such officers and directors during the past
two years, is incorporated by reference to Schedules A and D of Form ADV filed
by MAM pursuant to the Advisers Act (SEC File No. 801-36790).

MORGAN GRENFELL INVESTMENT SERVICES LIMITED

   
Morgan Grenfell Investment Services Limited ("Morgan Grenfell") is a money
manager for the Registrant's International Equity Fund.  The principal business
address of Morgan Grenfell is 20 Finsbury Circus, London EC2M INB, England.
Morgan Grenfell is an investment money manager registered under the Advisers
Act.
    

The list required by this Item 28 of officers and directors of Morgan Grenfell,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Morgan Grenfell pursuant to the Advisers Act (SEC File No.
801-12880).

   
NICHOLAS-APPLEGATE CAPITAL MANAGEMENT, INC.

Nicholas-Applegate Capital Management, Inc. ("Nicholas-Applegate") is a money
manager for the Registrant's Small Cap Fund.  The principal business address of
Nicholas-Applegate is 600 West Broadway, 29th Floor, San Diego, California
92101.  Nicholas-Applegate is an investment money manager registered under the
Advisers Act.

The list required by this Item 28 of officers and directors of
Nicholas-Applegate, together with information as to any other business,
profession, vocation or employment of substantial nature engaged in by such
officers and directors during the past two years, is incorporated by reference
to Schedules A and D of Form ADV filed by Nicholas-Applegate pursuant to the
Advisers Act (SEC File No. 801-21442).

PROVIDENT INVESTMENT COUNSEL, INC.

Provident Investment Counsel, Inc. ("Provident") is a money manager for the
Registrant's Large Cap Fund.  The principal business address of Provident is
300 North Lake Avenue, Pasadena, CA 91101.  Provident is an investment money
manager registered under the Advisers Act.

The list required by this Item 28 of officers and directors of Provident,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and
    


                                      7
<PAGE>   90
   
directors during the past two years, is incorporated by reference to Schedules 
A and D of Form ADV filed by Provident pursuant to the Advisers Act (SEC File 
No. 801-47993).
    

SCHRODER CAPITAL MANAGEMENT INTERNATIONAL LIMITED

   
Schroder Capital Management International Limited ("Schroder") is a money
manager for the Registrant's International Equity Fund.  The principal business
address of Schroder is 33 Gutter Lane, London EC2V 8AS, England.  Schroder is
an investment money manager registered under the Adviser Act.
    

The list required by this Item 28 of officers and directors of Schroder,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Schroder pursuant to the Advisers Act (SEC File No.
801-15834).

SEI FINANCIAL MANAGEMENT CORPORATION

   
SEI Financial Management Company ("SFM") is the money manager for the Large
Cap, Small Cap, Core Fixed Income, High Yield Bond, International Fixed Income,
Emerging Markets Equity and International Equity Funds.  The principal address
of SFM is 680 East Swedesford Road, Wayne, Pennsylvania 19087.  SFM is an
investment money manager registered under the Advisers Act.
    

The list required by this Item 28 of officers and directors of SFM, together
with information as to any other business profession, vocation, or employment
of a substantial nature engaged in by such officers and directors during the
past two years is incorporated by reference to Schedules A and D of Form ADV
filed by SFM to the Advisers Act (SEC File No. 801-24593).

STRATEGIC FIXED INCOME L.P.

   
Strategic Fixed Income L.P. ("Strategic") is a money manager for the
Registrant's International Fixed Income Fund.  The principal business address
of Strategic is 1001 Nineteenth Street North, 17th Floor, Arlington, Virginia
22209.  Strategic is an investment money manager registered under the Advisers
Act.
    

The list required by this Item 28 of officers and directors of Strategic,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Strategic pursuant to the Advisers Act (SEC File No.
801-38734).

   
WALL STREET ASSOCIATES

Wall Street Associates ("WSA") is a money manager for the Registrant's Small
Cap Fund.  The principal address for WSA is 1200 Prospect Street, Suite 100, La
Jolla, California 92037.  WSA is an investment money manager registered under
the Advisers Act.

The list required by this Item 28 of officers and directors of WSA, together
with information as to any other business, profession, vocation or employment
of substantial nature engaged in by such officers and directors during the past
two years, is incorporated by reference to Schedules A and D of Form ADV filed
by WSA pursuant to the Advisers Act (SEC File No. 801-30019).
    


                                      8

<PAGE>   91
WESTERN ASSET MANAGEMENT COMPANY

   
Western Asset Management Company ("Western") is a money manager for the
Registrant's Core Fixed Income Fund.  The principal business address of Western
is 117 East Colorado Boulevard, Pasadena, California 91105.  Western is an
investment money manager registered under the Advisers Act.
    

The list required by this Item 28 of officers and directors of Western,
together with information as to any other business, profession, vocation or
employment of substantial nature engaged in by such officers and directors
during the past two years, is incorporated by reference to Schedules A and D of
Form ADV filed by Western pursuant to the Advisers Act (SEC File No.
801-08162).

   
    

Item 29.  Principal Underwriters:

   
(a)  Furnish the name of each investment company (other than the Registrant)
     for which each principal underwriter currently distributing the securities
     of the Registrant also acts as a principal underwriter, distributor or
     investment adviser.
    

     Registrant's distributor, SEI Financial Services Company ("SFS"), acts as
     distributor for:
   
<TABLE>
     <S>                                                 <C>     
     SEI Daily Income Trust                              July 15, 1982    
     SEI Liquid Asset Trust                              November 29, 1982
     SEI Tax Exempt Trust                                December 3, 1982 
     SEI Index Funds                                     July 10, 1985    
     SEI Institutional Managed Trust                     January 22, 1987 
     SEI International Trust                             August 30, 1988  
     Stepstone Funds                                     January 30, 1991 
     The Advisors' Inner Circle Fund                     November 14, 1991
     The Pillar Funds                                    February 28, 1992
     CUFUND                                              May 1, 1992      
     STI Classic Funds                                   May 29, 1992     
     CoreFunds, Inc.                                     October 30, 1992 
     First American Funds, Inc.                          November 1, 1992 
     First American Investment Funds, Inc.               November 1, 1992 
     The Arbor Fund                                      January 28, 1993 
     1784 Funds                                          June 1, 1993     
     The PBHG Funds, Inc.                                July 16, 1993    
     Marquis Funds(R)                                    August 17, 1993  
     Morgan Grenfell Investment Trust                    January 3, 1994  
     Inventor Funds, Inc.                                August 1, 1994   
     The Achievement Funds Trust                         December 27, 1994
     Insurance Investment Products Trust                 December 30, 1994
     Bishop Street Funds                                 January 27, 1995 
     CrestFunds, Inc.                                    March 1, 1995    
     STI Classic Variable Trust                          August 18, 1995  
     ARK Funds                                           November 1, 1995 
     Monitor Funds                                       January 11, 1996 
     FMB Funds, Inc.                                     March 1, 1996    
     SEI Asset Allocation Trust                          April 1, 1996    
</TABLE>
    

     SFS provides numerous financial services to investment managers,
     pension plan sponsors, and bank trust departments.  These services
     include portfolio evaluation, performance measurement and consulting
     services ("Funds Evaluation") and automated execution, clearing and
     settlement of securities transactions ("MarketLink").


                                      9
<PAGE>   92
   
(b) Furnish the Information required by the following table with respect to
each director, officer or partner of each principal underwriter named in the
answer to Item 21 of Part B.  Unless otherwise noted, the business address of
each director or officer is 680 East Swedesford Road, Wayne, PA 19087.


<TABLE>
<CAPTION>
                              Position and Office                                  Positions and Offices
Name                          with Underwriter                                     with Registrant
- ----                          ----------------                                     ---------------
<S>                           <C>                                                  <C>
Alfred P. West, Jr.           Director, Chairman & Chief Executive Officer                 --
Henry H. Greer                Director, President & Chief Operating Officer                --
Carmen V. Romeo               Director, Executive Vice President & Treasurer               --
Gilbert L. Beebower           Executive Vice President                                     --
Richard B. Lieb               Executive Vice President                                     --
Charles A. Marsh              Executive Vice President-Capital Resources Division          --
Leo J. Dolan, Jr.             Senior Vice President                                        --
Carl A. Guarino               Senior Vice President                                        --
Jerome Hickey                 Senior Vice President                                        --
David G. Lee                  Senior Vice President                                        --
William Madden                Senior Vice President                                        --
A. Keith McDowell             Senior Vice President                                        --
Dennis J. McGonigle           Senior Vice President                                        --
Hartland J. McKeown           Senior Vice President                                        --
James V. Morris               Senior Vice President                                        --
Steven Onofrio                Senior Vice President                                        --
Kevin P. Robins               Senior Vice President, General Counsel &               Sale Trustee, Controller, 
                              Secretary                                              President and Chief Executive Officer
Robert Wagner                 Senior Vice President                                        --
Patrick K. Walsh              Senior Vice President                                        --
Kenneth Zimmer                Senior Vice President                                        --
Robert Crudup                 Managing Director                                            --
Vic Galef                     Managing Director                                            --
Kim Kirk                      Managing Director                                            --
John Krzeminski               Managing Director                                            --
Carolyn McLaurin              Managing Director                                            --
Barbara Moore                 Managing Director                                            --
Donald Pepin                  Managing Director                                            --
Mark Samuels                  Managing Director                                            --
Wayne M. Withrow              Managing Director                                            --
Michael Duncan                Vice President                                               --
Robert S. Ludwig              Vice President                                               --
Vicki Malloy                  Vice President                                               --
Robert Aller                  Vice President                                               --
Steve Bendinelli              Vice President                                               --
Gordon W. Carpenter           Vice President                                               --
Todd Cipperman                Vice President & Assistant Secretary                         --
Ed Daly                       Vice President                                               --
Jeff Drennen                  Vice President                                               --
Kathy Heilig                  Vice President                                               --
Larry Hutchison               Vice President                                               --

</TABLE>
    


                                      10
<PAGE>   93
   
<TABLE>
<CAPTION>
                              Position and Office                                  Positions and Offices
Name                          with Underwriter                                     with Registrant
- ----                          ----------------                                     ---------------
<S>                           <C>                                                          <C>
Michael Kantor                Vice President                                               --
Samuel King                   Vice President                                               --
Donald H. Korytowski          Vice President                                               --
Jack May                      Vice President                                               --
W. Kelso Morrill              Vice President                                               --
Sandra K. Orlow               Vice President & Assistant Secretary            
Larry Pokora                  Vice President                                               --
Kim Rainey                    Vice President                                               --
Paul Sachs                    Vice President                                               --
Steve Smith                   Vice President                                               --
Daniel Spaventa               Vice President                                               --
Kathryn L. Stanton            Vice President & Assistant Secretary                   
William Zawaski               Vice President                                               --
James Dougherty               Director of Brokerage Services                               --
</TABLE>
    


Item 30.  Location of Accounts and Records:

     Books or other documents required to be maintained by Section 31(a) of the
Investment Company Act of 1940, and the rules promulgated thereunder, are
maintained as follows:

     (a)  With respect to Rules 31a-1(a); 31a-1(b)(1); (2)(a) and (b); (3);
     (6); (8); (12); and 31a-1(d), the required books and records are
     maintained at the offices of Registrant's Custodians:

                       CoreStates Bank, N.A.                
                       Broad and Chestnut Streets           
                       P.O. Box 7618                        
                       Philadelphia, PA  19101              
                                                            
   
                       State Street Bank and Trust Company   
                       225 Franklin Street
                       Boston, MA  02110                    
    


     (b)/(c)  With respect to Rules 31a-1(a); 31a-1(b)(1),(4); (2)(C) and (D);
     (4); (5); (6); (8); (9); (10); (11); and 31a-1(f), the required books and
     records are maintained at the offices of Registrant's Manager:

   
                       SEI Financial Management Corporation 
                       680 East Swedesford Road             
                       Wayne, PA 19087                      
    


     (c)  With respect to Rules 31a-1(b)(5),(6),(9) and 10 and 31a-1(f), the
     required books and records are maintained at the principal offices of the
     Registrant's Money Managers:

                       1838 Investment Advisors, L.P.



                                      11
<PAGE>   94
                       5 Radnor Corporate Center                      
                       100 Matsonford Road                            
                       Suite 320                                      
                       Radnor, Pennsylvania 19087                     
                                                                      
                       Acadian Asset Management                       
                       260 Franklin Street                            
                       Boston, Massachusetts 02110                    
                                                                      
                       Alliance Capital Management                    
                       1345 Avenue of the Americas                    
                       New York, New York 10105                       
                                                                      
   
                       Apodaca-Johnston Capital Management, Inc. 
                       50 California Street                      
                       Suite 3315                                
                       San Francisco, California  94111          

                       BEA Associates                                 
                       One Citicorp Center                            
                       153 East 53rd Street                           
                       New York, New York  10022                      
                                                                      
                       BlackRock Financial Management, Inc.           
                       345 Park Avenue
                       29th Floor
                       New York, New York  10154

                       Boston Partners Asset Management, L.P.            
                       One Financial Center                              
                       43rd Floor                                        
                       Boston, Massachusetts 02111                       
                                                                         
                       Firstar Investment Research & Management Company  
                       777 East Wisconsin Avenue                         
                       Suite 800                                         
                       Milwaukee, Wisconsin 53202                        
                                                                         
                       IDS Advisory Group Inc.                           
                       IDS Tower 10                                      
                       Minneapolis, Minnesota 55400-0010                 
    
                                                                         
                       LSV Asset Management                              
                       181 West Madison Street                           
                       Chicago, Illinois 60602                           
                                                                         
                       Mellon Equity Associates                          
                       500 Grant Street                                  
                       Suite 3700                            
                       Pittsburgh, PA  15258                 
                                                                         
   
                       MERUS-UCA Capital Management                      
                       475 Sansom Street                                 
                       San Francisco, CA  94111                          
    
                                                                         
                       Montgomery Asset Management, L.P.                 




                                      12
<PAGE>   95
                       600 Montgomery Street                             
                       San Francisco, California 94111                   
                                                                         
                       Morgan Grenfell Investment Services Limited       
                       20 Finsbury Circus                                
                       London EC2M INB                                   
                       England

   
                       Nicholas-Applegate Capital Management, Inc. 
                       600 West Broadway                           
                       29th Floor                                  
                       San Diego, California 92101                 

                       Provident Investment Counsel, Inc.                
                       300 North Lake Avenue                             
                       Penthouse                                         
                       Pasadena, CA 91101                                
    
                                                                         
                       Schroder Capital Management International Limited 
                       33 Gutterlane                                     
                       London ECZV 8AS                                   
                       England                                           

   
                       SEI Financial Management Corporation              
                       680 East Swedesford Road                          
                       Wayne, PA 19087                                   
                                                                         
                       Strategic Fixed Income L.P.                       
                       1001 Nineteenth Street North, 17th Floor          
                       Arlington, VA 22209                               

                       Wall Street Associates         
                       1200 Prospect Street           
                       Suite 100                      
                       La Jolla, California 92037     
    
                                                      
                       Western Asset Management       
                       117 East Colorado Boulevard    
                       Pasadena, CA 91105             

   
    

Item 31.  Management Services:

     None.

Item 32.  Undertakings:

     Registrant undertakes to file a post-effective amendment containing
reasonably current financial statements, which need not be certified, within
four to six months of the effective date of the Registrant's 1933 Act
Registration Statement or the commencement of the operations of each Fund,
whichever is later.

     Registrant hereby undertakes that whenever Shareholders meeting the
requirements of Section 16(c) of the Investment Company Act of 1940 inform the
Board of Trustees of their desire to communicate with Shareholders of the
Trust, the Trustees will inform such Shareholders as to the approximate number
of Shareholders of record and the approximate cost of mailing or afford said
Shareholders access to a list of Shareholders.


                                      13
<PAGE>   96


     Registrant undertakes to hold a meeting of Shareholders for the purpose of
voting upon the question of removal of a Trustee(s) when requested in writing
to do so by the holders of at least 10% of Registrant's outstanding shares and
in connection with such meetings to comply with the provisions of Section 16(c)
of the Investment Company Act of 1940 relating to Shareholder communications.

     Registrant undertakes to furnish each person to whom a prospectus for any
series of the Registrant is delivered with a copy of the Registrant's latest
annual report to shareholders for such series, when such annual report is
issued containing information called for by Item 5A of Form N-1A, upon request
and without charge.


                                      14

<PAGE>   97

                                    NOTICE

     A copy of the Agreement and Declaration of Trust of SEI Institutional
Investments Trust is on file with the Secretary of State of The Commonwealth of
Massachusetts and notice is hereby given that this Registration Statement has
been executed on behalf of the Trust by an officer of the Trust as an officer
and by its Trustees as trustees and not individually and the obligations of or
arising out of this Registration Statement are not binding upon any of the
Trustees, Officers, or Shareholders individually but are binding only upon the
assets and property of the Trust.



                                      15
<PAGE>   98
                                  SIGNATURES

   
Pursuant to the requirements of the Securities Act of 1933, as amended, and the
Investment Company Act of 1940, as amended, the Registrant has duly caused this
Pre-Effective Amendment to be signed on its behalf by the undersigned,
thereunto duly authorized, in the City of Wayne in the Commonwealth of
Pennsylvania on the 24th day of April, 1996.
    



                                         SEI INSTITUTIONAL INVESTMENTS TRUST


                                         By:   /s/ Kevin P. Robins
                                               -----------------------
                                               Kevin P. Robins




   
        Pursuant to the requirements of the Securities Act of 1933, this 
Amendment to the Registration Statement has been signed below by the following
persons in the capacity on the date(s) indicated.
    



   
/s/ Kevin P. Robins                      Sole Trustee, Controller April 24, 1996
- -------------------                                               --------
Kevin P. Robins                          President and Chief
                                         Executive Officer
    
                                          




                                      16
<PAGE>   99
                                Exhibit Index


   
<TABLE>
<CAPTION>
Exhibit                                                                                      Page
- -------                                                                                      ----
<S>    <C>
(1)    Registrant's Declaration of Trust is incorporated herein by reference to
       Registrant's Registration Statement on Form N-1A (File No. 33-58041),
       filed with the Securities and Exchange Commission on March 10, 1995.
(2)    Registrant's By-Laws are incorporated herein by reference to Registrant's
       Registration Statement on Form N-1A (File No. 33-58041), filed with the
       Securities and Exchange Commission on March 10, 1995.
(3)    Not Applicable.
(4)    Not Applicable.
(5)(a) Form of Investment Advisory Agreement between the Trust and SEI Financial
       Management Corporation is filed herewith.
(5)(b) Form of Investment Sub-Advisory Agreement between the Trust and 1838
       Investment Advisors, L.P. with respect to the Trust's Small Cap Fund is
       filed herewith.
(5)(c) Form of Investment Sub-Advisory Agreement between the Trust and
       Acadian Asset Management, L.P. with respect to the Trust's Core
       International Equity Fund is filed herewith.
(5)(d) Form of Investment Sub-Advisory Agreement between the Trust and
       Alliance Capital Management L.P. with respect to the Trust's Large Cap
       Growth Fund is filed herewith.
(5)(e) Form of Investment Sub-Advisory Agreement between the Trust and
       Apodaca-Johnston Capital Management, Inc. with respect to the Trust's
       Small Cap Fund is filed herewith.
(5)(f) Form of Investment Sub-Advisory Agreement between the Trust and CS
       First Boston Investment Management Corporation with respect to the High
       Yield Bond Fund is filed herewith.
(5)(g) Form of Investment Sub-Advisory Agreement between the Trust and
       BlackRock Financial Management, Inc. with respect to the Core Fixed Income
       Fund is filed herewith.
(5)(h) Form of Investment Sub-Advisory Agreement between the Trust and
       Boston Partners Asset Management, L.P. with respect to the Small Cap Fund
       is filed herewith.
(5)(i) Form of Investment Sub-Advisory Agreement between the Trust and
       Firstar Investment Research & Management Company with respect to the Core
       Fixed Income Fund is filed herewith.
(5)(j) Form of Investment Sub-Advisory Agreement between the Trust and IDS
       Advisory Group, L.P. with respect to the Trust's Large Cap Fund is filed
       herewith.
(5)(k) Form of Investment Sub-Advisory Agreement between the Trust and LSV
       Asset Management with respect to the Trust's Large Cap Fund is filed
       herewith.
(5)(l) Form of Investment Sub-Advisory Agreement between the Trust and
       Mellon Equity Associates with respect to the Large Cap Fund is filed
       herewith.
(5)(m) Form of Investment Sub-Advisory Agreement between the Trust and
       MERUS-UCA Capital Management with respect to the Large Cap Fund is filed
       herewith.
(5)(n) Form of Investment Sub-Advisory Agreement between the Trust and
       Montgomery Asset Management, L.P. with respect to the Emerging Markets
       Equity Fund is filed herewith.
</TABLE>
    



                                      17

<PAGE>   100
   
<TABLE>
<CAPTION>
Exhibit                                                                                      Page
- -------                                                                                      ----
<S>    <C>
(5)(o) Form of Investment Sub-Advisory Agreement between the Trust and
       Morgan Grenfell Investment Services Limited with respect to the
       International Equity Fund is filed herewith.
(5)(p) Form of Investment Sub-Advisory Agreement between the Trust and
       Nicholas-Applegate Capital Management, Inc. with respect to the Small Cap
       Fund is filed herewith.
(5)(q) Form of Investment Sub-Advisory Agreement between the Trust and
       Provident Investment Counsel, Inc. with respect to the Large Cap Fund is
       filed herewith.
(5)(r) Form of Investment Sub-Advisory Agreement between the Trust and
       Schroder Capital Management International Limited with respect to the
       International Equity Fund is filed herewith.
(5)(s) Form of Investment Sub-Advisory Agreement between the Trust and
       Strategic Fixed Income L.P. with respect to the International Fixed Income
       Fund is filed herewith.
(5)(t) Form of Investment Sub-Advisory Agreement between the Trust and Wall
       Street Associates with respect to the Small Cap Fund is filed herewith.
(5)(u) Form of Investment Sub-Advisory Agreement between the Trust and
       Western Asset Management Company with respect to the Core Fixed Income
       Fund is filed herewith.
(5)(v) Form of Administration Agreement between the Trust and SEI Fund Management
       is filed herewith.
(6)    Form of Distribution Agreement between the Trust and SEI Financial
       Services Company is filed herewith.
(7)    Not Applicable.
(8)    Form of Custodian Agreement between the Trust and CoreStates Bank,
       N.A. with respect to the Trust's Large Cap, Small Cap, Core Fixed Income
       and High Yield Bond Funds is filed herewith.
(9)    Not Applicable.
(10)   Form of Opinion and Consent of Counsel is filed herewith.
(11)   Consent of Independent Public Accountants filed herewith.
(12)   Not Applicable.
(13)   Not Applicable.
(14)   Not Applicable.
(15)   Not Applicable.
(16)   Performance Quotation Computation is filed herewith.
</TABLE>
    


                                      18



<PAGE>   1
                                                                    EXHIBIT 5(a)

                          ADMINISTRATION AGREEMENT
                     SEI INSTITUTIONAL INVESTMENTS TRUST

     THIS AGREEMENT is made as of this _____ day of __________, 1996, by and
between SEI Institutional Investments Trust, a Massachusetts business trust
(the "Trust"), and SEI Fund Management (the "Administrator"), a Delaware
corporation.

     WHEREAS, the Trust is an open-end diversified management investment
company registered under the Investment Company Act of 1940, as amended (the
"1940 Act"), consisting of several series of shares of Common Stock; and

     WHEREAS, the Trust desires the Administrator to provide, and the
Administrator is willing to provide, management and administrative services to
such portfolios of the Trust as the Trust and the Administrator may agree on
("Portfolios") and as listed on the schedules attached hereto ("Schedules") and
made a part of this Agreement, on the terms and conditions hereinafter set
forth;

     NOW, THEREFORE, in consideration of the premises and the covenants
hereinafter contained, the Trust and the Administrator hereby agree as follows:

     ARTICLE 1. Retention of the Administrator.  The Trust hereby retains the
Administrator to act as the administrator of the Portfolios and to furnish the
Portfolios with the management and administrative services as set forth in
Article 2 below. The Administrator hereby accepts such employment to perform
the duties set forth below.

     The Administrator shall, for all purposes herein, be deemed to be an
independent contractor and, unless otherwise expressly provided or authorized,
shall have no authority to act for or represent the Trust in any way and shall
not be deemed an agent of the Trust.

     ARTICLE 2.  Administrative and Accounting Services.  The Administrator
shall perform or supervise the performance by others of other administrative
services in connection with the operations of the Portfolios, and, on behalf of
the Trust, will investigate, assist in the selection of and conduct relations
with custodians, depositories, accountants, legal counsel, underwriters,
brokers and dealers, corporate fiduciaries, insurers, banks and persons in any
other capacity deemed to be necessary or desirable for the Portfolios'
operations. The Administrator shall provide the Trustees of the Trust with such
reports regarding investment performance and compliance with investment
policies and applicable laws, rules and regulations as they may reasonably
request but shall have no responsibility for supervising the performance by any
investment adviser or sub-adviser of its responsibilities.  The Administrator
may appoint a sub-administrator to perform certain of the services to be
performed by the Administrator hereunder.

     The Administrator shall provide the Trust with administrative services,
regulatory reporting, fund accounting and related portfolio accounting
services, all necessary office space, equipment, personnel, compensation and
facilities (including facilities for Shareholders' and Trustees' meetings) for
handling the affairs of the Portfolios and such other services as the Trustees
may, from time to time, reasonably request and the Administrator shall, from
time to time, reasonably determine to be necessary to perform its obligations
under this Agreement.  In addition, at the request of the Trust's Board of
Trustees (the "Trustees"), the Administrator shall make reports to the Trustees
concerning the performance of its obligations hereunder.

     Without limiting the generality of the foregoing, the Administrator shall:

<PAGE>   2



      (A)  calculate contractual Trust expenses and control all
           disbursements for the Trust, and as appropriate compute the
           Trust's yields, total return, expense ratios, portfolio turnover
           rate and, if required, portfolio average dollar-weighed maturity;

      (B)  assist Trust counsel with the preparation of prospectuses,
           statements of additional information, registration  statements, and
           proxy materials;

      (C)  prepare such reports, applications and documents (including
           reports regarding the sale and redemption of Shares as may be
           required in order to comply with Federal and state securities law)
           as may be necessary or desirable to register the Trust's shares with
           state securities authorities, monitor sale of Trust shares for
           compliance with state securities laws and file with the appropriate
           state securities authorities the registration statements and reports
           for the Trust and the Trust's shares and all amendments thereto, as
           may be necessary or convenient to register and keep effective the
           Trust and the Trust's shares with state securities authorities to
           enable the Trust to make a continuous offering of its shares;

      (D)  develop and prepare communications to shareholders, including
           the annual report to shareholders, coordinate mailing prospectuses,
           notices,  proxy statements, proxies  and other reports to Trust
           shareholders, and supervise and facilitate the solicitation of
           proxies solicited by the Trust for all shareholder meetings,
           including tabulation process for shareholder meetings;

      (E)  coordinate with Trust counsel the preparation and negotiation
           of, and administer contracts on behalf of the Trust with, among
           others, the Trust's investment adviser, distributor, custodian, and
           transfer agent;

      (F)  maintain the Trust's general ledger and prepare the Trust's
           financial statements, including expense accruals and payments,
           determine the net asset value of the Trust's assets and of the
           Trust's shares, and supervise the Trust's transfer agent with
           respect to the payment of dividends and other distributions to
           shareholders;

      (G)  calculate performance data of the Trust and its portfolios
           for dissemination to information services covering the investment
           company industry;

      (H)  coordinate and supervise the preparation and filing of the
           Trust's tax returns;

      (I)  examine and review the operations and performance of the
           various organizations providing services to the Trust or any
           Portfolio of the Trust, including, without limitation, the Trust's
           investment adviser, distributor, custodian, transfer agent, outside
           legal counsel and independent public accountants, and at the request
           of the Trustees, report to the Trustees on the performance of
           organizations;

      (J)  assist with the layout and printing of publicly disseminated
           prospectuses and assist with and coordinate layout and printing of
           the Trust's semi-annual and annual reports to shareholders;

      (K)  provide internal legal and administrative services as
           requested by the Trust from time to time;
<PAGE>   3

      (L)  assist with the design, development, and operation of the
           Trust, including new portfolio and class investment objectives, 
           policies and structure;

      (M)  provide individuals acceptable to the Trustees for
           nomination, appointment, or election as officers of the Trust, who
           will be responsible for the management of certain of the Trust's
           affairs as determined by the Trustees;

      (N)  advise the Trust and its Trustees on matters concerning the
           Trust and its affairs;

      (O)  obtain and keep in effect fidelity bonds and directors and
           officers/errors and omissions insurance policies for the Trust in
           accordance with the requirements of Rules 17g-1 and 17d-1(7) under
           the 1940 Act as such bonds and policies are approved by the Trust's
           Board of Trustees;

      (P)  monitor and advise the Trust and its Portfolios on their
           registered investment company status under the Internal Revenue Code
           of 1986, as amended;

      (Q)  perform all administrative services and functions of the
           Trust and each Portfolio to the extent administrative services and
           functions are not provided to the Trust or such Portfolio pursuant
           to the Trust's or such Portfolio's investment advisory agreement,
           distribution agreement, custodian agreement and transfer agent
           agreement;

      (R)  furnish advice and recommendations with respect to other
           aspects of the business and affairs of the Portfolios as the Trust
           and the Administrator shall determine desirable; and

      (S)  prepare and file with the SEC the semi-annual report for the
           Trust on Form N-SAR and all required notices pursuant to Rule 24f-2.

Also, the Administrator will perform other services for the Trust as agreed
from time to time, including, but not limited to performing internal audit
examinations; mailing the annual reports of the Portfolios; preparing an annual
list of shareholders; and mailing notices of shareholders' meetings, proxies
and proxy statements, for all of which the Trust will pay the Administrator's
out-of-pocket expenses.

     ARTICLE 3. Allocation of Charges and Expenses.

     (A) The Administrator.  The Administrator shall furnish at its own expense
the executive, supervisory and clerical personnel necessary to perform its
obligations under this Agreement. The Administrator shall also provide the
items which it is obligated to provide under this Agreement, and shall pay all
compensation, if any, of officers of the Trust as well as all Trustees of the
Trust who are affiliated persons of the Administrator or any affiliated
corporation of the Administrator; provided, however, that unless otherwise
specifically provided, the Administrator shall not be obligated to pay the
compensation of any employee of the Trust retained by the Trustees of the Trust
to perform services on behalf of the Trust.

     (B) The Trust.  The Trust assumes and shall pay or cause to be paid all
other expenses of the Trust not otherwise allocated herein, including, without
limitation, organizational costs, taxes, expenses for legal and auditing
services, the expenses of preparing (including typesetting), printing and
mailing reports, prospectuses, statements of additional information, proxy
solicitation material and notices to existing Shareholders, all expenses
incurred in connection with issuing and redeeming Shares, the costs of
custodial services, the cost of initial and ongoing registration of the Shares
under Federal and state 
<PAGE>   4

securities laws, fees and out-of-pocket expenses of Trustees who are not
affiliated persons of the Administrator or the investment adviser to the
Trust or any affiliated corporation of the Administrator or the investment
Adviser, the costs of Trustees  meetings, insurance, interest, brokerage costs,
litigation and other extraordinary or nonrecurring expenses, and all fees and
charges of investment advisers to the Trust.

     ARTICLE 4. Compensation of the Administrator.

     (A) Administration Fee.  For the services to be rendered, the facilities
furnished and the expenses assumed by the Administrator pursuant to this
Agreement, the Trust shall pay to the Administrator compensation at an annual
rate specified in the Schedules. Such compensation shall be calculated and
accrued daily, and paid to the Administrator monthly.

     If this Agreement becomes effective subsequent to the first day of a month
or terminates before the last day of a month, the Administrator's compensation
for that part of the month in which this Agreement is in effect shall be
prorated in a manner consistent with the calculation of the fees as set forth
above. Payment of the Administrator's compensation for the preceding month
shall be made promptly.

     (B) Compensation from Transactions.  The Trust hereby authorizes any
entity or person associated with the Administrator which is a member of a
national securities exchange to effect any transaction on the exchange for the
account of the Trust which is permitted by Section 11 (a) of the Securities
Exchange Act of 1934 and Rule 11a2-2(T) thereunder, and the Trust hereby
consents to the retention of compensation for such transactions in accordance
with Rule 11a2-2(T) (a) (2) (iv).

     (C) Survival of Compensation Rates.  All rights of compensation under this
Agreement for services performed as of the termination date shall survive the
termination of this Agreement.

     ARTICLE 5. Limitation of Liability of the Administrator.  The duties of
the Administrator shall be confined to those expressly set forth herein, and no
implied duties are assumed by or may be asserted against the Administrator
hereunder. The Administrator shall not be liable for any error of judgment or
mistake of law or for any loss arising out of any investment or for any act or
omission in carrying out its duties hereunder, except a loss resulting from
willful misfeasance, bad faith or negligence in the performance of its duties,
or by reason of reckless disregard of its obligations and duties hereunder,
except as may otherwise be provided under provisions of applicable law which
cannot be waived or modified hereby. (As used in this Article 5, the term
"Administrator" shall include directors, officers, employees and other agents
of the Administrator as well as that corporation itself..)

     So long as the Administrator, or its agents, acts in good faith and with
due diligence and without  negligence, the Trust assumes full responsibility
and shall indemnify the Administrator and hold it harmless from and against any
and all actions, suits and claims, whether groundless or otherwise, and from
and against any and all losses, damages, costs, charges, reasonable counsel
fees and disbursements, payments, expenses and liabilities (including
reasonable investigation expenses) arising directly or indirectly out of said
administration, transfer agency, and dividend disbursing relationships to the
Trust or any other service rendered to the Trust hereunder. The indemnity and
defense provisions set forth herein shall indefinitely survive the termination
of this Agreement.

     The rights hereunder shall include the right to reasonable advances of
defense expenses in the event of any pending or threatened litigation with
respect to which indemnification hereunder may ultimately be merited. In order
that the indemnification provision contained herein shall apply, however, it is
understood that if in any case the Trust may be asked to indemnify or hold the
Administrator harmless, the Trust shall be fully and promptly advised of all
pertinent facts concerning the situation in 

<PAGE>   5

question, and it is further understood that the Administrator will use all
reasonable care to identify and notify the Trust promptly concerning any
situation which presents or appears likely to present the probability of such a
claim for indemnification against the Trust, but failure to do so in good faith
shall not affect the rights hereunder.

     The Trust shall be entitled to participate at its own expense or, if it so
elects, to assume the defense of any suit brought to enforce any claims subject
to this indemnity provision.  If the Trust elects to assume the defense of any
such claim, the defense shall be conducted by counsel chosen by the Trust and
satisfactory to the Administrator, whose approval shall not be unreasonably
withheld.  In the event that the Trust elects to assume the defense of any suit
and retain counsel, the Administrator shall bear the fees and expenses of any
additional counsel retained by it.  If the Trust does not elect to assume the
defense of a suit, it will reimburse the Administrator for the reasonable fees
and expenses of any counsel retained by the Administrator.

     The Administrator may apply to the Trust at any time for instructions and
may consult counsel for the Trust or its own counsel and with accountants and
other experts with respect to any matter arising in connection with the
Administrator's duties, and the Administrator shall not be liable or
accountable for any action taken or omitted by it in good faith in accordance
with such instruction or with the opinion of such counsel, accountants or other
experts.

     Also, the Administrator shall be protected in acting upon any document
which it reasonably believes to be genuine and to have been signed or presented
by the proper person or persons. Nor shall the Administrator be held to have
notice of any change of authority of any officers, employee or agent of the
Trust until receipt of written notice thereof from the Trust.

     ARTICLE 6. Activities of the Administrator.  The services of the
Administrator rendered to the Trust are not to be deemed to be exclusive. The
Administrator is free to render such services to others and to have other
businesses and interests. It is understood that Trustees, officers, employees
and Shareholders of the Trust are or may be or become interested in the
Administrator, as directors, officers, employees and shareholders or otherwise
and that directors, officers, employees and shareholders of the Administrator
and its counsel are or may be or become similarly interested in the Trust, and
that the Administrator may be or become interested in the Trust as a
Shareholder or otherwise.

     ARTICLE 7. Confidentiality.  The Administrator agrees on behalf of itself
and its employees to treat confidentially all records and other information
relative to the Trust and its prior, present or potential Shareholders and
relative to the Adviser and its prior, present or potential customers, except,
after prior notification to and approval in writing by the Trust, which
approval shall not be unreasonably withheld and may not be withheld where the
Administrator may be exposed to civil or criminal contempt proceedings for
failure to comply, when requested to divulge such information by duly
constituted authorities, or when so requested by the Trust.

     ARTICLE 8. Equipment Failures.  In the event of equipment failures beyond
the Administrator's control, the Administrator shall, at no additional expense
to the Trust, take reasonable steps to minimize service interruptions but shall
have no liability with respect thereto.  The Administrator shall develop and
maintain a plan for recovery from equipment failures which may include
contractual arrangements with appropriate parties making reasonable provision
for emergency use of electronic data processing equipment to the extent
appropriate equipment is available.

     ARTICLE 9. Compliance With Governmental Rules and Regulations.  The
Administrator undertakes to comply with all applicable requirements of the 1933
Act, the 1934 Act, the 1940 Act and 

<PAGE>   6


any laws, rules and regulations of governmental authorities having jurisdiction
with respect to the duties to be performed by the Administrator hereunder.

     ARTICLE 10.  Duration and Termination of this Agreement.  This Agreement
shall become effective on the date set forth in the Schedules and shall remain
in effect for the initial term of the Agreement (the "Initial Term") and each
renewal term thereof (each, a "Renewal Term"), each as set forth in the
Schedules, unless terminated in accordance with the provisions of this Article
10.  This Agreement may be terminated only:  (a) by the mutual written
agreement of the parties; (b) by either party hereto on 90 days  written
notice, as of the end of the Initial Term or the end of any Renewal Term; (c)
by either party hereto on such date as is specified in written notice given by
the terminating party, in the event of a material breach of this Agreement by
the other party, provided the terminating party has notified the other party of
such breach at least 45 days prior to the specified date of termination and the
breaching party has not remedied such breach by the specified date; (d)
effective upon the liquidation of the Administrator; or (e) as to any Portfolio
or the Trust, effective upon the liquidation of such Portfolio or the Trust, as
the case may be.  For purposes of this Article 10, the term "liquidation" shall
mean a transaction in which the assets of the Administrator, the Trust or a
Portfolio are sold or otherwise disposed of and proceeds therefrom are
distributed in cash to the shareholders in complete liquidation of the
interests of such shareholders in the entity.

     This Agreement shall not be assignable by the Administrator, without the
prior written consent of the Trust, except to an entity that is controlled by,
or under common control, with, the Administrator.

     ARTICLE 11.  Amendments.  This Agreement or any part hereof may be changed
or waived only by an instrument in writing signed by the party against which
enforcement of such change or waiver is sought.

     ARTICLE 12.  Certain Records.  The Administrator shall maintain customary
records in connection with its duties as specified in this Agreement. Any
records required to be maintained and preserved pursuant to Rules 31a-1 and
31a-2 under the 1940 Act which are prepared or maintained by the Administrator
on behalf of the Trust shall be prepared and maintained at the expense of the
Administrator, but shall be the property of the Trust and will be made
available to or surrendered promptly to the Trust on request.

     In case of any request or demand for the inspection of such records by
another party, the Administrator shall notify the Trust and follow the Trust's
instructions as to permitting or refusing such inspection; provided that the
Administrator may exhibit such records to any person in any case where it is
advised by its counsel that it may be held liable for failure to do so, unless
(in cases involving potential exposure only to civil liability) the Trust has
agreed to indemnify the Administrator against such liability.

     ARTICLE 13.  Definitions of Certain Terms.  The terms "interested person"
and "affiliated person," when used in this Agreement, shall have the respective
meanings specified in the 1940 Act and the rules and regulations thereunder,
subject to such exemptions as may be granted by the Securities and Exchange
Commission.

     ARTICLE 14.  Notice.  Any notice required or permitted to be given by
either party to the other shall be deemed sufficient if sent by registered or
certified mail, postage prepaid, addressed by the party giving notice to the
other party at the last address furnished by the other party to the party
giving notice: if to the Trust, at c/o Kevin P. Robins, General Counsel, SEI
Fund Management, 680 East Swedesford Road, Wayne, PA 19087; and if to the
Administrator at 680 East Swedesford Road, Wayne, PA 19087-1658.

<PAGE>   7

     ARTICLE 15.  Governing Law.  This Agreement shall be construed in
accordance with the laws oft he Commonwealth of Massachusetts and the
applicable provisions of the 1940 Act. To the extent that the applicable laws
of the Commonwealth of Massachusetts, or any of the provisions herein, conflict
with the applicable provisions of the 1940 Act, the latter shall control.

     ARTICLE 16. Multiple Originals.  This Agreement may be executed in two or
more counterparts, each of which when so executed shall be deemed to be an
original, but such counterparts shall together constitute but one and the same
instrument.

     ARTICLE 17.    Limitation of Liability.  The Administrator is hereby
expressly put on notice of the limitation of liability as set forth in Article
XI of the Trust's Declaration of Trust and agrees that the obligations pursuant
to this Agreement of a particular Portfolio and of the Trust with respect to
that Portfolio shall be limited solely to the assets of that Portfolio, and the
Administrator shall not seek satisfaction of any such obligation from any other
Portfolio, the shareholders of any Portfolio, the Trustees, officers, employees
or agents of the Trust, or any of them.

<PAGE>   8


     ARTICLE 18.  Binding Agreement.  This Agreement, and the rights and
obligations of the parties and the Portfolios hereunder, shall be binding on,
and inure to the benefit of, the parties and the Portfolios and the respective
successors and assigns of each of them.

     IN WITNESS WHEREOF, the parties hereto have executed and delivered this
Agreement as of the day and year first above written.

SEI INSTITUTIONAL INVESTMENTS TRUST

By:
   ----------------------

Attest:
        -----------------

SEI FUND MANAGEMENT

By: 
    ---------------------

Attest:
        -----------------
<PAGE>   9



                                  SCHEDULE
                       TO THE ADMINISTRATION AGREEMENT
                          DATED AS OF APRIL 1, 1996
                                   BETWEEN
                     SEI INSTITUTIONAL INVESTMENTS TRUST
                                     AND
                             SEI FUND MANAGEMENT


Portfolios:  This Agreement shall apply to all Portfolios of the Trust, either
             now in the future created.  The following is a listing of the
             current portfolios of the Trust: Large Cap, Small Cap, Core Fixed
             Income, High Yield Bond, International Fixed Income, Emerging
             Markets Equity and International Equity Funds (collectively, the
             "Portfolios").

Fees:        Pursuant to Article 4, Section A, the Trust shall pay the
             Administrator compensation for services rendered to the Portfolios
             at an annual rate, which is calculated daily and paid monthly, at
             a maximum administrative fee equal to .05% of each Portfolios'
             average daily net assets.

Term:        This Agreement shall become effective on ________, 1996, and shall
             remain in effect for an Initial Term of two (2) years from such
             date and, thereafter, for successive Renewal Terms of one (1) year
             each, unless and until this Agreement is terminated in accordance
             with the provisions of Article 10 hereof.




<PAGE>   1
                                                                   EXHIBIT 5(b)

                      INVESTMENT SUB-ADVISORY AGREEMENT
                     SEI INSTITUTIONAL INVESTMENTS TRUST

     AGREEMENT made this _____ day of _____________, 1996, by and among SEI
Financial Management Corporation, (the "Adviser") and 1838 Investment Advisors,
L.P. (the "Sub-Adviser").

     WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

     WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ___,  1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Small Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

     WHEREAS, the Adviser, with the approval of the Trust, desires to retain
the Sub-Adviser to provide investment advisory services to the Adviser in
connection with the management of the Portfolio, and the Sub-Adviser is willing
to render such investment advisory services.

     NOW, THEREFORE, the parties hereto agree as follows:

1.   DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and the
     Trust's Board of Trustees, the Sub-Adviser shall manage the investment
     operations of the Portfolio and the composition of the Portfolio,
     including the purchase, retention and disposition of securities and other
     assets, in accordance with the Portfolio's investment objectives, policies
     and restrictions as stated in the Portfolio's prospectus and statement of
     additional information,  as currently in effect and as amended or
     supplemented from time to time (referred to collectively as the
     "Prospectus"), and subject to the following:

(a)  The Sub-Adviser shall provide supervision of the Portfolio's investments
     and determine from time to time  what investments and securities will be
     purchased, retained or sold by the Portfolio, and what portion of the
     assets will be invested or held uninvested in cash.

(b)  In the performance of its duties and obligations under this Agreement,
     the Sub-Adviser shall act in conformity with the Trust's Declaration of
     Trust (as defined herein) and the Prospectus and with the instructions and
     directions of the Adviser and of the Board of Trustees of the Trust and
     will conform to and comply with the requirements of the 1940 Act, the
     Internal Revenue Code of 1986, and all other applicable federal and state
     laws and regulations, as each is amended from time to time.

(c)  The Sub-Adviser shall determine the securities to be purchased or
     sold by the Portfolio and will place orders with or through such persons,
     brokers or dealers to carry out the policy with respect to brokerage set
     forth in the Portfolio's Registration Statement (as defined herein) and
     Prospectus or as the Board of Trustees or the Adviser may direct from time
     to time, in conformity with federal securities laws.  In executing
     Portfolio transactions and selecting brokers or dealers, the Sub-Adviser
     will use its best efforts to seek on behalf of the Portfolio the best
     overall terms available.  In assessing the best overall terms available
     for any transaction, the Sub-Adviser shall consider all factors that it
     deems relevant, including the breadth of the market in the security, the
     price of the security, the financial condition and execution capability of
     the broker or dealer, and the reasonableness of the commission, if any,
     both for the specific transaction and on a continuing basis.  In
     evaluating the best overall terms available, and in selecting the
     broker-dealer to execute a particular transaction the Sub-Adviser may also
     consider the brokerage and research services (as those terms are defined
     in Section 28(e) of the Securities Exchange Act of 1934) provided to the
     Portfolio and/or other accounts over which the Sub-Adviser or an affiliate
     of the Sub-Adviser may exercise investment discretion.  The Sub-Adviser is
     authorized, subject to the prior approval of the Trust's Board of
     Trustees, to pay to a broker or dealer who provides such brokerage and
     research services a commission for executing a portfolio transaction for
     any of the Portfolios which is in excess of the amount of commission
     another broker or dealer would have charged for effecting that transaction
     if, but only if, the Sub-Adviser determines in good faith that such
     commission was reasonable in relation to the value of the brokerage and
     research services provided by such broker or dealer - - viewed in terms of
     that particular transaction or terms of the overall responsibilities of
     the Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser if
     authorized to allocate purchase and sale orders for portfolio securities
     to brokers or dealers (including brokers and dealers that are affiliated
     with the Sub-Adviser or the Trust's principal underwriter) to take into
     account the sale of shares of the Trust if the Sub-Adviser believes that
     the quality of the transaction and the commission are comparable to what
     they would be with other qualified firms.  In no instance, however, will
     any Portfolio's securities be purchased from or sold to the Sub-Adviser,
     the Trust's principal underwriter, or any affiliated person of either the
     Trust, the Sub-Adviser or the principal underwriter, acting as principal
     in the transaction, except to the extent permitted by the Securities and
     Exchange Commission and the 1940 Act.

(d)  The Sub-Adviser shall maintain all books and records with respect to the
     Portfolio's portfolio transactions required by subparagraphs (b)(5), (6),
     (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act
     and shall render to the Adviser or Board of Trustees such periodic and
     special reports as the Adviser or Board of Trustees may reasonably
     request.

      The Sub-Adviser shall keep the Portfolio's books and records required to
      be maintained by the Sub-Adviser of this Agreement and shall timely
      furnish to the Adviser all information relating to the Sub-Adviser's
      services under this Agreement needed by the Adviser to keep the other
      books and records of the Portfolio required by Rule 31a-1 under the 1940
      Act.  The Sub-Adviser 

<PAGE>   2


      shall also furnish to the Adviser any other information that is
      required to be filled by the Adviser or the Trust with the Securities and
      Exchange Commission ("SEC") or sent to shareholders under the 1940 Act
      (including the rules adopted thereunder) or any exemptive or other relief
      that the Adviser or the Trust obtains from the SEC.  The Sub-Adviser
      agrees that all records that it maintains on behalf of the Portfolio are
      property of the Portfolio and the Sub-Adviser will surrender promptly to
      the Portfolio any of such records upon the Portfolio's request; provided,
      however, that the Sub-Adviser may retain a copy of such records.  In
      addition, for the duration of this Agreement, the  Sub-Adviser shall
      preserve for the periods prescribed by Rule  31a-2 under the 1940 Act any
      such records as are required to be maintained by it pursuant to this
      Agreement, and shall transfer said records to any successor Sub-Adviser
      upon the termination of his Agreement (or, if there is no successor
      Sub-Adviser, to the Adviser).

(e)  The Sub-Adviser shall provide the Portfolio's custodian on each business
     day with information relating to all transactions concerning the
     Portfolio's assets and shall provide the Adviser with such information
     upon request of the Adviser.

(f)  The investment management services provided by the Sub-Adviser under this
     Agreement are not to be deemed exclusive and the Sub-Adviser shall be free
     to render similar services to others, as long as such services do not
     impair the services rendered to the Adviser or the Trust.

(g)  The Sub-Adviser shall promptly notify the Adviser of any
     financial condition that is likely to impair the Sub-Adviser's ability to
     fulfill its commitment under this Agreement.

     Services to be furnished by the Sub-Adviser under this Agreement may be
     furnished through the medium of any of the Sub-Adviser's partners,
     officers or employees.

2.   DUTIES OF THE ADVISER.  The Adviser shall continue to have responsibility
     for all services to be provided to the Portfolio pursuant to the Advisory
     Agreement and shall oversee and review the Sub-Adviser's performance of
     its duties under this Agreement; provided, however, that nothing herein
     shall be construed to relieve the Sub-Adviser of responsibility for
     compliance with the Portfolio's investment objectives, policies, and
     restrictions, as provided in Section 1 hereunder.

3.   DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
     copies properly certified or authenticated of each of the following
     documents:

(a)  The Trust's Agreement and Declaration of Trust, as filed with the
     Secretary of State of the Commonwealth of Massachusetts (such Agreement
     and Declaration of Trust, as in effect on the date of this Agreement and
     as amended from time to time, herein called the "Declaration of Trust");

(b)  By-Laws of the Trust (such By-Laws, as in effect on the date of this
     Agreement and as amended from time to time, are herein called the
     "By-Laws");

(c)  Prospectus(es) of the Portfolio.

4.   COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the
     Sub-Adviser pursuant to this Agreement, the Adviser will pay the
     Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
     therefor, a sub-advisory fee at the rate specified in the Schedule(s)
     which is attached hereto and made part of this Agreement.  The fee will be
     calculated based on the average monthly market value of investments under
     management and will be paid to the Sub-Adviser monthly.  The Sub-Adviser
     may, in its discretion and from time to time, waive a portion of its fee.

5.   LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not be
     liable for any error of judgment or for any loss suffered by the Adviser
     in connection with performance of its obligations under this Agreement,
     except a loss resulting from a breach of fiduciary duty with respect to
     the receipt of compensation for services (in which case any award of
     damages shall be limited to the period and the amount set forth in Section
     36(b)(3) of the 1940 Act), or a loss resulting from willful misfeasance,
     bad faith or negligence on the Sub-Adviser's part in the performance of
     its duties or from reckless disregard of its obligations and duties under
     this Agreement, except as may otherwise be provided under provisions of
     applicable state law which cannot be waived or modified hereby.

6.   REPORTS.  During the term of this Agreement, the Adviser agrees to
     furnish the Sub-Adviser at its principal office all prospectuses, proxy
     statements, reports to stockholders, sales literature or other materials
     prepared for distribution to stockholders of the Portfolios, the Trust or
     the public that refer to the Sub-Adviser or its clients in any way prior
     to use thereof and not to use material if the Sub-Adviser reasonably
     objects in writing within five business days (or such other period as may
     be mutually agreed) after receipt thereof.  The Sub-Adviser's right to
     object to such materials is limited to the portions of such materials that
     expressly relate to the Sub-Adviser, its services and its clients.  The
     Adviser agrees to use its reasonable best efforts to ensure that materials
     prepared by its employees or agents or its affiliates that refer to the
     Sub-Adviser or its clients in any way are consistent with those materials
     previously approved by the Sub-Adviser as referenced in the first sentence
     of this paragraph.  Sales literature may be furnished to the Sub-Adviser
     by first class or overnight mail, facsimile transmission equipment or hand
     delivery.

7.   CHANGE IN THE SUB-ADVISER S MEMBERSHIP.  The Sub-Adviser agrees that it
     shall notify the Trust of any change in the 

<PAGE>   3


     membership of the Sub-Adviser within a reasonable time after such
     change.

8.   INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the
     Adviser from and against any and all claims, losses, liabilities or
     damages (including reasonable attorney's fees and other related expenses)
     howsoever arising from or in connection with this Agreement or the
     performance by the Sub-Adviser of its duties hereunder; provided, however,
     that the Sub-Adviser shall not be required to indemnify or otherwise hold
     the Adviser harmless under this Section 8 where the claim against, or the
     loss, liability or damage experienced by the Adviser, is caused by or is
     otherwise directly related to the Adviser's own willful misfeasance, bad
     faith or negligence, or to the reckless disregard of its duties under this
     Agreement.

9.   DURATION AND TERMINATION.  This Agreement shall become effective upon its
     approval by the Trust's Board of Trustees and by the vote of a majority of
     the outstanding voting securities of the Portfolio; provided, however,
     that at any time the Adviser shall have obtained exemptive relief from the
     SEC permitting it to engage a Sub-Adviser without first obtaining approval
     of the Agreement from a majority of the outstanding voting securities of
     the Portfolio(s) involved, the Agreement shall become effective upon its
     approval by the Trust's Board of Trustees.  Any Sub-Adviser so selected
     and approved shall be without the protection accorded by shareholder
     approval of an investment adviser's receipt of compensation under Section
     36(b) of the 1940 Act.

     This Agreement shall continue in effect for a period of more than two      
     years from the date hereof only so long as continuance is specifically
     approved at least annually in conformance with the 1940 Act; provided,
     however, that this Agreement may be terminated with respect to the
     Portfolio (a) by the Portfolio at any time, without the payment of any
     penalty, by the vote of a majority of Trustees of the Trust or by the vote
     of a majority of the outstanding voting securities of such Portfolio, (b)
     by the Adviser at any time, without the payment of any penalty, on not
     more than 60 days' nor less than 30 days' written notice to the other
     party, or (c) by the Sub-Adviser at any time, without the payment of any
     penalty, on 90 days' written notice to the other party. This Agreement
     shall terminate automatically and immediately in the event of its
     assignment, or in the event of a termination of the Adviser's agreement
     with the Trust.  As used in this Section 9, the terms "assignment" and
     "vote of a majority of the outstanding voting securities" shall have the
     respective meanings set forth in the 1940 Act and the rules and
     regulations thereunder, subject to such exceptions as may be granted by
     the Commission under the 1940 Act.

10.  GOVERNING LAW.  This Agreement shall be governed by the internal laws of
     the Commonwealth of Massachusetts, without regard to conflict of law
     principles; provided, however, that nothing herein shall be construed as
     being inconsistent with the 1940 Act.

11.  SEVERABILITY.  Should any part of this Agreement be held invalid by a
     court decision, statute, rule or otherwise, the remainder of this
     Agreement shall not be affected thereby.  This Agreement shall be binding
     upon and shall inure to the benefit of the parties hereto and their
     respective successors.

12.  NOTICE:  Any notice, advice or report to be given pursuant to this
     Agreement shall be deemed sufficient if delivered or mailed by registered, 
     certified or overnight mail, postage prepaid addressed by the party giving
     notice to the other party at the last address furnished by the other
     party:



     To the Adviser at:            SEI Financial Management Corporation  
                                   680 East Swedesford Road              
                                   Wayne, PA 19087                       
                                   Attention:  Legal Department          

     To the Sub-Adviser at:        1838 Investment Advisors, L.P.        
                                   5 Radnor Corporate Center             
                                   100 Matsonford Road, Suite 320        
                                   Radnor, Pa 19087                      

13.  ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
     understanding between the parties hereto, and supersedes all prior
     agreements and understandings relating to this Agreement's subject matter.
     This Agreement may be executed in any number of counterparts, each of
     which shall be deemed to be an original, but such counterparts shall,
     together, constitute only one instrument.

Where the effect of a requirement of the 1940 Act reflected in any provision of
this Agreement is altered by a rule, regulation or order of the Commission,
whether of special or general application, such provision shall be deemed to
incorporate the effect of such rule, regulation or order.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first
written above.


SEI Financial Management Corporation    1838 Investment Advisors, L.P.

By:                                     By:
   ---------------------------------       ---------------------------------

Title:                                  Title:
      -------------------------------         ------------------------------

<PAGE>   4



                                 SCHEDULE A
                                   TO THE
                           SUB-ADVISORY AGREEMENT
                                   BETWEEN
                    SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                       1838 INVESTMENT ADVISORS, L.P.


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Small Cap                                      .50%



<PAGE>   1

                                                                  EXHIBIT 5(c)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

     AGREEMENT made this ____ day of ____________, 1996, by and among SEI
Financial Management Corporation, (the "Adviser") and Acadian Asset Management,
Inc. (the "Sub-Adviser").

     WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

     WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ______, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the International Equity
Portfolio (the "Portfolio"), which is a series of the Trust; and

     WHEREAS, the Adviser, with the approval of the Trust, desires to retain
the Sub-Adviser to provide investment advisory services to the Adviser in
connection with the management of the Portfolio, and the Sub-Adviser is willing
to render such investment advisory services.

NOW, THEREFORE, the parties hereto agree as follows:

1.   DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and the
     Trust's Board of Trustees, the Sub-Adviser shall manage the investment
     operations of the Portfolio and the composition of the Portfolio,
     including the purchase, retention and disposition of securities and other
     assets, in accordance with the Portfolio's investment objectives, policies
     and restrictions as stated in the Portfolio's prospectus and statement of
     additional information,  as currently in effect and as amended or
     supplemented from time to time (referred to collectively as the
     "Prospectus"), and subject to the following:

(a)  The Sub-Adviser shall provide supervision of the Portfolio's investments
     and determine from time to time  what investments and securities will be
     purchased, retained or sold by the Portfolio, and what portion of the
     assets will be invested or held uninvested in cash.

(b)  In the performance of its duties and obligations under this Agreement,
     the Sub-Adviser shall act in conformity with the Trust's Declaration of
     Trust (as defined herein) and the Prospectus and with the instructions and
     directions of the Adviser and of the Board of Trustees of the Trust and
     will conform to and comply with the requirements of the 1940 Act, the
     Internal Revenue Code of 1986, and all other applicable federal and state
     laws and regulations, as each is amended from time to time.

(c)  The Sub-Adviser shall determine the securities to be purchased or
     sold by the Portfolio and will place orders with or through such persons,
     brokers or dealers to carry out the policy with respect to brokerage set
     forth in the Portfolio's Registration Statement (as defined herein) and
     Prospectus or as the Board of Trustees or the Adviser may direct from time
     to time, in conformity with federal securities laws.  In executing
     Portfolio transactions and selecting brokers or dealers, the Sub-Adviser
     will use its best efforts to seek on behalf of the Portfolio the best
     overall terms available.  In assessing the best overall terms available
     for any transaction, the Sub-Adviser shall consider all factors that it
     deems relevant, including the breadth of the market in the security, the
     price of the security, the financial condition and execution capability of
     the broker or dealer, and the reasonableness of the commission, if any,
     both for the specific transaction and on a continuing basis.  In
     evaluating the best overall terms available, and in selecting the
     broker-dealer to execute a particular transaction the Sub-Adviser may also
     consider the brokerage and research services (as those terms are defined
     in Section 28(e) of the Securities Exchange Act of 1934) provided to the
     Portfolio and/or other accounts over which the Sub-Adviser or an affiliate
     of the Sub-Adviser may exercise investment discretion.  The Sub-Adviser is
     authorized, subject to the prior approval of the Trust's Board of
     Trustees, to pay to a broker or dealer who provides such brokerage and
     research services a commission for executing a portfolio transaction for
     any of the Portfolios which is in excess of the amount of commission
     another broker or dealer would have charged for effecting that transaction
     if, but only if, the Sub-Adviser determines in good faith that such
     commission was reasonable in relation to the value of the brokerage and
     research services provided by such broker or dealer - - viewed in terms of
     that particular transaction or terms of the overall responsibilities of
     the Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser if
     authorized to allocate purchase and sale orders for portfolio securities
     to brokers or dealers (including brokers and dealers that are affiliated
     with the Sub-Adviser or the Trust's principal underwriter) to take into
     account the sale of shares of the Trust if the Sub-Adviser believes that
     the quality of the transaction and the commission are comparable to what
     they would be with other qualified firms.  In no instance, however, will
     any Portfolio's securities be purchased from or sold to the Sub-Adviser,
     the Trust's principal underwriter, or any affiliated person of either the
     Trust, the Sub-Adviser or the principal underwriter, acting as principal
     in the transaction, except to the extent permitted by the Securities and
     Exchange Commission and the 1940 Act.

(d)  The Sub-Adviser shall maintain all books and records with respect to the
     Portfolio's portfolio transactions required by subparagraphs (b)(5), (6),
     (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act
     and shall render to the Adviser or Board of Trustees such periodic and
     special reports as the Adviser or Board of Trustees may reasonably
     request.

     The Sub-Adviser shall keep the Portfolio's books and records required
     to be maintained by the Sub-Adviser of this Agreement and shall timely
     furnish to the Adviser all information relating to the Sub-Adviser's
     services under this Agreement needed by the Adviser to keep the other
     books and records of the Portfolio required by Rule 31a-1 under the 1940
     Act.  The Sub-Adviser 

<PAGE>   2


     shall also furnish to the Adviser any other information that is
     required to be filled by the Adviser or the Trust with the Securities and
     Exchange Commission ("SEC") or sent to shareholders under the 1940 Act
     (including the rules adopted thereunder) or any exemptive or other relief
     that the Adviser or the Trust obtains from the SEC.  The Sub-Adviser
     agrees that all records that it maintains on behalf of the Portfolio are
     property of the Portfolio and the Sub-Adviser will surrender promptly to
     the Portfolio any of such records upon the Portfolio's request; provided,
     however, that the Sub-Adviser may retain a copy of such records.  In
     addition, for the duration of this Agreement, the  Sub-Adviser shall
     preserve for the periods prescribed by Rule  31a-2 under the 1940 Act any
     such records as are required to be maintained by it pursuant to this
     Agreement, and shall transfer said records to any successor Sub-Adviser
     upon the termination of this Agreement (or, if there is no successor
     Sub-Adviser, to the Adviser).

(e)  The Sub-Adviser shall provide the Portfolio's custodian on each business
     day with information relating to all transactions concerning the
     Portfolio's assets and shall provide the Adviser with such information
     upon request of the Adviser.

(f)  The investment management services provided by the Sub-Adviser under this
     Agreement are not to be deemed exclusive and the Sub-Adviser shall be free
     to render similar services to others, as long as such services do not
     impair the services rendered to the Adviser or the Trust.

(g)  The Sub-Adviser shall promptly notify the Adviser of any financial
     condition that is likely to impair the Sub-Adviser's ability to fulfill
     its commitment under this Agreement.

     Services to be furnished by the Sub-Adviser under this Agreement may be
     furnished through the medium of any of the Sub-Adviser's partners,
     officers or employees.

2.   DUTIES OF THE ADVISER.  The Adviser shall continue to have responsibility
     for all services to be provided to the Portfolio pursuant to the Advisory
     Agreement and shall oversee and review the Sub-Adviser's performance of
     its duties under this Agreement; provided, however, that nothing herein
     shall be construed to relieve the Sub-Adviser of responsibility for
     compliance with the Portfolio's investment objectives, policies, and
     restrictions, as provided in Section 1 hereunder.

3.   DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
     copies properly certified or authenticated of each of the following
     documents:

(a)  The Trust's Agreement and Declaration of Trust, as filed with the
     Secretary of State of the Commonwealth of Massachusetts (such Agreement
     and Declaration of Trust, as in effect on the date of this Agreement and
     as amended from time to time, herein called the "Declaration of Trust");

(b)  By-Laws of the Trust (such By-Laws, as in effect on the date of this
     Agreement and as amended from time to time, are herein called the
     "By-Laws");

(c)  Prospectus(es) of the Portfolio.

4.   COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the
     Sub-Adviser pursuant to this Agreement, the Adviser will pay the
     Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
     therefor, a sub-advisory fee at the rate specified in the Schedule(s)
     which is attached hereto and made part of this Agreement.  The fee will be
     calculated based on the average monthly market value of investments under
     management and will be paid to the Sub-Adviser monthly.  The Sub-Adviser
     may, in its discretion and from time to time, waive a portion of its fee.

5.   LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not be
     liable for any error of judgment or for any loss suffered by the Adviser
     in connection with performance of its obligations under this Agreement,
     except a loss resulting from a breach of fiduciary duty with respect to
     the receipt of compensation for services (in which case any award of
     damages shall be limited to the period and the amount set forth in Section
     36(b)(3) of the 1940 Act), or a loss resulting from willful misfeasance,
     bad faith or negligence on the Sub-Adviser's part in the performance of
     its duties or from reckless disregard of its obligations and duties under
     this Agreement, except as may otherwise be provided under provisions of
     applicable state law which cannot be waived or modified hereby.

6.   REPORTS.  During the term of this Agreement, the Adviser agrees to
     furnish the Sub-Adviser at its principal office all prospectuses, proxy
     statements, reports to stockholders, sales literature or other materials
     prepared for distribution to stockholders of the Portfolios, the Trust or
     the public that refer to the Sub-Adviser or its clients in any way prior
     to use thereof and not to use material if the Sub-Adviser reasonably
     objects in writing within five business days (or such other period as may
     be mutually agreed) after receipt thereof.  The Sub-Adviser's right to
     object to such materials is limited to the portions of such materials that
     expressly relate to the Sub-Adviser, its services and its clients.  The
     Adviser agrees to use its reasonable best efforts to ensure that materials
     prepared by its employees or agents or its affiliates that refer to the
     Sub-Adviser or its clients in any way are consistent with those materials
     previously approved by the Sub-Adviser as referenced in the first sentence
     of this paragraph.  Sales literature may be furnished to the Sub-Adviser
     by first class or overnight mail, facsimile transmission equipment or hand
     delivery.

7.   INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the
     Adviser from and against any and all claims, losses, 


<PAGE>   3

     liabilities or damages (including reasonable attorney's fees and other
     related expenses) howsoever arising from or in connection with this
     Agreement or the performance by the Sub-Adviser of its duties hereunder;
     provided, however, that the Sub-Adviser shall not be required to indemnify
     or otherwise hold the Adviser harmless under this Section 7 where the
     claim against, or the loss, liability or damage experienced by the
     Adviser, is caused by or is otherwise directly related to the Adviser's
     own willful misfeasance, bad faith or negligence, or to the reckless
     disregard of its duties under this Agreement.

8.   DURATION AND TERMINATION.  This Agreement shall become effective upon its
     approval by the Trust's Board of Trustees and by the vote of a majority of
     the outstanding voting securities of the Portfolio; provided, however,
     that at any time the Adviser shall have obtained exemptive relief from the
     SEC permitting it to engage a Sub-Adviser without first obtaining approval
     of the Agreement from a majority of the outstanding voting securities of
     the Portfolio(s) involved, the Agreement shall become effective upon its
     approval by the Trust's Board of Trustees.  Any Sub-Adviser so selected
     and approved shall be without the protection accorded by shareholder
     approval of an investment adviser's receipt of compensation under Section
     36(b) of the 1940 Act.

     This Agreement shall continue in effect for a period of more than two      
     years from the date hereof only so long as continuance is specifically
     approved at least annually in conformance with the 1940 Act; provided,
     however, that this Agreement may be terminated with respect to the
     Portfolio (a) by the Portfolio at any time, without the payment of any
     penalty, by the vote of a majority of Trustees of the Trust or by the vote
     of a majority of the outstanding voting securities of such Portfolio, (b)
     by the Adviser at any time, without the payment of any penalty, on not
     more than 60 days' nor less than 30 days' written notice to the other
     party, or (c) by the Sub-Adviser at any time, without the payment of any
     penalty, on 90 days' written notice to the other party. This Agreement
     shall terminate automatically and immediately in the event of its
     assignment, or in the event of a termination of the Adviser's agreement
     with the Trust.  As used in this Section 8, the terms "assignment" and
     "vote of a majority of the outstanding voting securities" shall have the
     respective meanings set forth in the 1940 Act and the rules and
     regulations thereunder, subject to such exceptions as may be granted by
     the Commission under the 1940 Act.

9.   GOVERNING LAW.  This Agreement shall be governed by the internal laws of
     the Commonwealth of Massachusetts, without regard to conflict of law
     principles; provided, however, that nothing herein shall be construed as
     being inconsistent with the 1940 Act.

10.  SEVERABILITY.  Should any part of this Agreement be held invalid by a
     court decision, statute, rule or otherwise, the remainder of this
     Agreement shall not be affected thereby.  This Agreement shall be binding
     upon and shall inure to the benefit of the parties hereto and their
     respective successors.

11.  NOTICE:  Any notice, advice or report to be given pursuant to this
     Agreement shall be deemed sufficient if delivered or mailed by registered,
     certified or overnight mail, postage prepaid addressed by the party giving
     notice to the other party at the last address furnished by the other
     party:


     To the Adviser at:            SEI Financial Management Corporation   
                                   680 East Swedesford Road               
                                   Wayne, PA 19087                        
                                   Attention:  Legal Department           

     To the Sub-Adviser at:        Acadian Asset Management, Inc.         
                                   Two International Place                
                                   Boston, MA 02110                       
                                   Attention: President                   

12.  ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
     understanding between the parties hereto, and supersedes all prior
     agreements and understandings relating to this Agreement's subject matter.
     This Agreement may be executed in any number of counterparts, each of
     which shall be deemed to be an original, but such counterparts shall,
     together, constitute only one instrument.

Where the effect of a requirement of the 1940 Act reflected in any provision of
this Agreement is altered by a rule, regulation or order of the Commission,
whether of special or general application, such provision shall be deemed to
incorporate the effect of such rule, regulation or order.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first
written above.


SEI Financial Management Corporation      Acadian Asset Management, Inc.

By:                                       By:  
     ----------------------------------        -------------------------------
Title:                                    Title: 
        -------------------------------          -----------------------------

<PAGE>   4



                                 SCHEDULE A
                                   TO THE
                           SUB-ADVISORY AGREEMENT
                                   BETWEEN
                    SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                       ACADIAN ASSET MANAGEMENT, INC.

                                      
Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:


International Equity                 .325% on first $150 million
                                     .25% on next $150 million
                                     .20% over $300 million



<PAGE>   1

                                                                  EXHIBIT 5(d)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

     AGREEMENT made this _____ day of ____________, 1996, by and among SEI
Financial Management Corporation, (the "Adviser") and Alliance Capital
Management L.P. (the "Sub-Adviser").

     WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

     WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____,  1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Large Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

     WHEREAS, the Adviser, with the approval of the Trust, desires to retain
the Sub-Adviser to provide investment advisory services to the Adviser in
connection with the management of the Portfolio, and the Sub-Adviser is willing
to render such investment advisory services.

     NOW, THEREFORE, the parties hereto agree as follows:

1.   DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and the
     Trust's Board of Trustees, the Sub-Adviser shall manage the investment  of
     all of the securities and other assets of the Portfolio entrusted to it
     hereunder, including the purchase, retention and disposition of securities
     and other assets, in accordance with the Portfolio's investment
     objectives, policies and restrictions as stated in the Portfolio's
     prospectus and statement of additional information,  as currently in
     effect and as amended or supplemented from time to time (referred to
     collectively as the "Prospectus"), and subject to the following:

(a)  The Sub-Adviser shall provide supervision of the Portfolio's investments
     and determine from time to time  what investments and securities will be
     purchased, retained or sold by the Portfolio, and what portion of the
     assets will be invested or held uninvested in cash.

(b)  In the performance of its duties and obligations under this Agreement,
     the Sub-Adviser shall act in conformity with the Trust's Declaration of
     Trust (as defined herein) and the Prospectus and with the instructions and
     directions of the Adviser and of the Board of Trustees of the Trust and
     will conform to and comply with the requirements of the 1940 Act, the
     Internal Revenue Code of 1986, and all other applicable federal and state
     laws and regulations, as each is amended from time to time. The Adviser
     agrees promptly to deliver any amendment or supplement to the Prospectus
     to the Sub-Adviser on an on-going basis, and until the Adviser delivers
     any such amendment or supplement to its Sub-Adviser, the Sub-Adviser shall
     be fully protected in relying on the Prospectus as previously furnished.

<PAGE>   2



(c)  The Sub-Adviser shall determine the securities to be purchased or
     sold by the Portfolio and will place orders with or through such persons,
     brokers or dealers to carry out the policy with respect to brokerage set
     forth in the Portfolio's Registration Statement and Prospectus or as the
     Board of Trustees or the Adviser may direct from time to time, in
     conformity with federal securities laws.  In executing Portfolio
     transactions and selecting brokers or dealers, the Sub-Adviser will use
     its best efforts to seek on behalf of the Portfolio the best overall terms
     available.  In assessing the best overall terms available for any
     transaction, the Sub-Adviser shall consider all factors that it deems
     relevant, including the breadth of the market in the security, the price
     of the security, the financial condition and execution capability of
     the broker or dealer, and the reasonableness of the commission, if any,
     both for the specific transaction and on a continuing basis.  In
     evaluating the best overall terms available, and in selecting the
     broker-dealer to execute a particular transaction the Sub-Adviser may also
     consider the brokerage and research services (as those terms are defined
     in Section 28(e) of the Securities Exchange Act of 1934) provided to the
     Portfolio and/or other accounts over which the Sub-Adviser or an affiliate
     of the Sub-Adviser may exercise investment discretion.  The Sub-Adviser is
     authorized, subject to the prior approval of the Trust's Board of
     Trustees, to pay to a broker or dealer who provides such brokerage and
     research services a commission for executing a portfolio transaction for
     any of the Portfolios which is in excess of the amount of commission
     another broker or dealer would have charged for effecting that transaction
     if, but only if, the Sub-Adviser determines in good faith that such
     commission was reasonable in relation to the value of the brokerage and
     research services provided by such broker or dealer - - viewed in terms of
     that particular transaction or terms of the overall responsibilities of
     the Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser is
     authorized to allocate purchase and sale orders for portfolio securities
     to brokers or dealers (including brokers and dealers that are affiliated
     with the Sub-Adviser or the Trust's principal underwriter) to take into
     account the sale of shares of the Trust if the Sub-Adviser believes that
     the quality of the transaction and the commission are comparable to what
     they would be with other qualified firms.  In no instance, however, will
     any Portfolio's securities be purchased from or sold to the Sub-Adviser,
     the Trust's principal underwriter, or any affiliated person of either the
     Trust, the Sub-Adviser or the principal underwriter, acting as principal
     in the transaction, except to the extent permitted by the Securities and
     Exchange Commission and the 1940 Act.

(d)  The Sub-Adviser shall maintain all books and records with respect to the
     Portfolio's portfolio transactions required by subparagraphs (b)(5), (6),
     (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act
     and shall render to the Adviser or Board of Trustees such periodic and
     special reports as the Adviser or Board of Trustees may reasonably
     request.

     The Sub-Adviser shall keep the Portfolio's books and records required
     to be maintained by the Sub-Adviser  by this Agreement and shall timely
     furnish to the Adviser all information relating to the Sub-Adviser's
     services under this Agreement needed by the Adviser to keep the other
     books and records of the Portfolio required by Rule 31a-1 under the 1940
     Act.  The Sub-Adviser shall also furnish to the Adviser any other
     information 


                                      2
<PAGE>   3

     that is required to be filed by the Adviser or the Trust with the
     Securities and Exchange Commission ("SEC") or sent to shareholders under
     the 1940 Act (including the rules adopted thereunder) or any exemptive or
     other relief that the Adviser or the Trust obtains from the SEC.  The
     Sub-Adviser agrees that all records that it maintains on behalf of the
     Portfolio are property of the Portfolio and the Sub-Adviser will surrender
     promptly to the Portfolio any of such records upon the Portfolio's
     request; provided, however, that the Sub-Adviser may retain a copy of such
     records.  In addition, for the duration of this Agreement, the 
     Sub-Adviser shall preserve for the periods prescribed by Rule  31a-2 under
     the 1940 Act any such records as are required to be maintained by it
     pursuant to this Agreement, and shall transfer said records to any
     successor Sub-Adviser upon the termination of his Agreement (or, if there
     is no successor Sub-Adviser, to the Adviser).

(e)  The Sub-Adviser shall provide the Portfolio's custodian on each business
     day with information relating to all transactions concerning the
     Portfolio's assets and shall provide such information and such periodic or
     special reports as the Adviser or Board of Trustees may reasonably
     request.

(f)  Adviser understands that the Sub-Adviser now acts, will continue to
     act and may act in the future as investment manager or adviser to
     fiduciary and other managed accounts, and as investment manager or adviser
     to other investment companies, including any offshore entities, or
     accounts, and the Portfolio has no objection to the Sub-Adviser's so
     acting, provided that whenever the Portfolio and one or more other
     investment companies or accounts managed or advised by the Sub-Adviser
     have available funds for investment, investments suitable and appropriate
     for each will be allocated in accordance with a formula believed to be
     equitable to each company and account.  The Adviser recognizes that in
     some cases this procedure may adversely affect the size of the position
     obtainable for the Portfolio.  In addition, the Adviser understands that
     the persons employed by the Sub-Adviser to assist in the performance of
     the Sub-Adviser's duties under this Agreement will not devote their full
     time to such service and nothing contained in this Agreement shall be
     deemed to limit or restrict the right of the Sub-Adviser or any affiliate
     of the Sub-Adviser to engage in and devote time and attention to other
     businesses or to render services of whatever kind or nature.

(g)  The Sub-Adviser shall promptly notify the Adviser of any financial
     condition that is likely to impair the Sub-Adviser's ability to fulfill
     its commitment under this Agreement.

     Services to be furnished by the Sub-Adviser under this Agreement may be
     furnished through the medium of any of the Sub-Adviser's partners,
     officers or employees.

2.   DUTIES OF THE ADVISER.  The Adviser shall continue to have responsibility
     for all services to be provided to the Portfolio pursuant to the Advisory
     Agreement and shall oversee and review the Sub-Adviser's performance of
     its duties under this Agreement; provided, however, that nothing herein
     shall be construed to relieve the Sub-Adviser of responsibility for
     compliance with the Portfolio's investment objectives, policies, and
     restrictions, as provided in Section 1 hereunder.

3.   DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
     copies properly 


                                      3
<PAGE>   4

     certified or authenticated of each of the following documents:

(a)  The Trust's Agreement and Declaration of Trust, as filed with the
     Secretary of State of the Commonwealth of Massachusetts (such Agreement
     and Declaration of Trust, as in effect on the date of this Agreement and
     as amended from time to time, herein called the "Declaration of Trust");

(b)  By-Laws of the Trust (such By-Laws, as in effect on the date of this
     Agreement and as amended from time to time, are herein called the
     "By-Laws");

(c)  Prospectus(es) of the Portfolio.

(d)  The Trust's most recent Registration Statement as filed with the
     Securities and Exchange Commission.


4.   COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the
     Sub-Adviser pursuant to this Agreement, the Adviser will pay the
     Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
     therefor, a sub-advisory fee at the rate specified in Schedule A which is
     attached hereto and made part of this Agreement.  The fee will be
     calculated based on the average monthly market value of investments under
     management and will be paid to the Sub-Adviser monthly.  The Sub-Adviser
     may, in its discretion and from time to time, waive a portion of its fee.

5.   LIMITATION OF LIABILITY OF THE SUB-ADVISER. The Sub-Adviser shall not be
     liable for any error of judgment or for any loss suffered by the Adviser
     in connection with the performance of its obligations under this
     Agreement, except a loss resulting from (i) willful misfeasance, bad faith
     or negligence on the Sub-Adviser's part in the performance of its duties,
     or (ii) reckless disregard of its obligations and duties under this
     Agreement, or (iii) a violation of law or any duty imposed by federal or
     state law.

6.   REPORTS.  During the term of this Agreement, the Adviser agrees to
     furnish the Sub-Adviser at its principal office all prospectuses,
     proxy statements, reports to stockholders, sales literature or other
     materials prepared for distribution to stockholders of the Portfolios, the
     Trust or the public that refer to the Sub-Adviser or its clients in any
     way prior to use thereof and not to use material if the Sub-Adviser
     reasonably objects in writing within five business days (or such other
     period as may be mutually agreed) after receipt thereof.  The
     Sub-Adviser's right to object to such materials is limited to the portions
     of such materials that expressly relate to the Sub-Adviser, its services
     and its clients. The Adviser agrees to use its reasonable best efforts to
     ensure that materials prepared by its employees or agents or its
     affiliates that refer to the Sub-Adviser or its clients in any way are
     consistent with those materials previously approved by the Sub-Adviser as
     referenced in the first sentence of this paragraph.  Sales literature may
     be furnished to the Sub-Adviser by first class or overnight mail,
     facsimile transmission equipment or hand delivery.

7.   CHANGE IN THE SUB-ADVISER'S MEMBERSHIP.  The Sub-Adviser agrees that it
     shall notify 



                                      4
<PAGE>   5

     the Adviser of any change in the membership of the general partners of
     the Sub-Adviser within a reasonable time after such change.

8.   INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the
     Adviser from and against any and all claims, losses, liabilities or
     damages (including reasonable attorney's fees and other related expenses)
     howsoever arising from or in connection with this Agreement or the
     performance by the Sub-Adviser of its duties hereunder; provided, however,
     that the Sub-Adviser shall not be required to indemnify or otherwise hold
     the Adviser harmless under this Section 8 where the claim against, or the
     loss, liability or damage experienced by the Adviser, is caused by or is
     otherwise directly related to the Adviser's own willful misfeasance, bad
     faith or negligence, or to the reckless disregard of its duties under this
     Agreement.

9.   DURATION AND TERMINATION.  This Agreement shall become effective upon its
     approval by the Trust's Board of Trustees and by the vote of a majority of
     the outstanding voting securities of the Portfolio; provided, however,
     that at any time the Adviser shall have obtained exemptive relief from the
     SEC permitting it to engage a Sub-Adviser without first obtaining approval
     of the Agreement from a majority of the outstanding voting securities of
     the Portfolio(s) involved, the Agreement shall become effective upon its
     approval by the Trust's Board of Trustees.  Any Sub-Adviser so selected
     and approved shall be without the protection accorded by shareholder
     approval of an investment adviser's receipt of compensation under Section
     36(b) of the 1940 Act.

     This Agreement shall continue in effect for a period of more than two      
     years from the date hereof only so long as continuance is specifically
     approved at least annually in conformance with the 1940 Act; provided,
     however, that this Agreement may be terminated with respect to the
     Portfolio (a) by the Portfolio at any time, without the payment of any
     penalty, by the vote of a majority of Trustees of the Trust or by the vote
     of a majority of the outstanding voting securities of such Portfolio, (b)
     by the Adviser at any time, without the payment of any penalty, on not
     more than 60 days' nor less than 30 days' written notice to the other
     party, or (c) by the Sub-Adviser at any time, without the payment of any
     penalty, on 90 days' written notice to the other party. This Agreement
     shall terminate automatically and immediately in the event of its
     assignment, or in the event of a termination of the Adviser's agreement
     with the Trust.  As used in this Section 9, the terms "assignment" and
     "vote of a majority of the outstanding voting securities" shall have the
     respective meanings set forth in the 1940 Act and the rules and
     regulations thereunder, subject to such exceptions as may be granted by
     the Commission under the 1940 Act.

10.  GOVERNING LAW.  This Agreement shall be governed by the internal laws of
     the Commonwealth of Massachusetts, without regard to conflict of law
     principles; provided, however, that nothing herein shall be construed as
     being inconsistent with the 1940 Act.

11.  SEVERABILITY.  Should any part of this Agreement be held invalid by a      
     court decision, statute, rule or otherwise, the remainder of this
     Agreement shall not be affected thereby.  This Agreement shall be binding
     upon and shall inure to the benefit of the parties hereto and their
     respective successors.



                                      5
<PAGE>   6


12.  NOTICE:  Any notice, advice or report to be given pursuant to this
     Agreement shall be deemed sufficient if delivered or mailed by registered,
     certified or overnight mail, postage prepaid addressed by the party giving
     notice to the other party at the last address furnished by the other
     party:

     To the Adviser at:      SEI Financial Management Corporation     
                             680 East Swedesford Road                 
                             Wayne, PA 19087                          
                             Attention:  Legal Department             

     To the Sub-Adviser at:  Alliance Capital Management L.P.         
                             1345 Avenue of the Americas              
                             New York, NY 10105                       
                             Attention: Corporate Legal and           
                             Attention: Thomas Leavitt SVP            

13.  NAMES.  The Trust may use the names "Alliance Capital Management L.P.",
     "Alliance Capital Management", "Alliance Capital", or "Alliance" only  for
     so long as this Agreement or any extension, renewal, or amendment hereof
     remains in effect.  At such times as this Agreement shall no longer be in
     effect, the Trust shall cease to use such names or any other name
     indicating that it is advised by or otherwise connected with the
     Sub-Adviser.

14.  ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
     understanding between the parties hereto, and supersedes all prior
     agreements and understandings relating to this Agreement's subject matter.
     This Agreement may be executed in any number of counterparts, each of
     which shall be deemed to be an original, but such counterparts shall,
     together, constitute only one instrument.

     A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

     Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first
written above.


SEI Financial Management Corporation  Alliance Capital Management L.P.

By:                                   By: Alliance Capital Management
   ------------------------------     Corporation, its General
                                      Partner

Title:                                By:
      ---------------------------        -----------------------------
<PAGE>   7



                                 SCHEDULE A
                                   TO THE
                           SUB-ADVISORY AGREEMENT
                                   BETWEEN
                    SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                      ALLIANCE CAPITAL MANAGEMENT L.P.

Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:


Large Cap                                      .25%




                                      7




<PAGE>   1

                                                                EXHIBIT 5(e)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this ____ day of __________, 1996, between SEI
Financial Management Corporation, (the "Adviser") and Apodaca-Johnston Capital
Management, Inc. (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Small Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets will
         be purchased, retained or sold by the Portfolio, and what portion of
         the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as provided in subparagraph (a) and will place orders
         with or through such persons, brokers or dealers to carry out the
         policy with respect to brokerage set forth in the Portfolio's
         Registration Statement (as defined herein) and Prospectus or as the
         Board of Trustees or the Adviser may direct from time to time, in
         conformity with federal securities laws.  In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will
         use its best efforts to seek on behalf of the Portfolio the best
         overall terms available.  In
<PAGE>   2

         assessing the best overall terms available for any transaction, the
         Sub-Adviser shall consider all factors that it deems relevant,
         including the breadth of the market in the security, the price of the
         security, the financial condition and execution capability of the
         broker or dealer, and the reasonableness of the commission, if any,
         both for the specific transaction and on a continuing basis.  In
         evaluating the best overall terms available, and in selecting the
         broker-dealer to execute a particular transaction, the Sub-Adviser may
         also consider the brokerage and research services provided (as those
         terms are defined in Section 28(e) of the Securities Exchange Act of
         1934).  Consistent with any guidelines established by the Board of
         Trustees of the Trust, the Sub-Adviser is authorized to pay to a
         broker or dealer who provides such brokerage and research services a
         commission for executing a portfolio transaction for the Portfolio
         which is in excess of the amount of commission another broker or
         dealer would have charged for effecting that transaction if, but only
         if, the Sub-Adviser determines in good faith that such commission was
         reasonable in relation to the value of the brokerage and research
         services provided by such broker or dealer - - viewed in terms of that
         particular transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser if
         authorized to allocate purchase and sale orders for securities to
         brokers or dealers (including brokers and dealers that are affiliated
         with the Adviser, Sub-Adviser or the Trust's principal underwriter) to
         take into account the sale of shares of the Trust if the Sub-Adviser
         believes that the quality of the transaction and the commission are
         comparable to what they would be with other qualified firms.  In no
         instance, however, will the Portfolio's Assets be purchased from or
         sold to the Adviser, Sub-Adviser, the Trust's principal underwriter,
         or any affiliated person of either the Trust, Adviser, the Sub-Adviser
         or the principal underwriter, acting as principal in the transaction,
         except to the extent permitted by the Securities and Exchange
         Commission and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall provide to the Adviser or the Board
         of Trustees such periodic and special reports, balance sheets or
         financial information, and such other information with regard to its
         affairs as the Adviser or Board of Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.  The Sub-Adviser shall also
         furnish to the Adviser any other information relating to the Assets
         that is required to be filed by the Adviser or the Trust with the
         Securities and Exchange Commission ("SEC") or sent to shareholders
         under the 1940 Act (including the rules adopted thereunder) or any
         exemptive or other relief that the Adviser or the Trust obtains from
         the SEC.  The Sub-Adviser agrees that all records that it maintains on
         behalf of the Portfolio are property of the Portfolio and the
         Sub-Adviser will surrender promptly to the Portfolio any of such
         records upon the Portfolio's request; provided, however, that the
         Sub-Adviser may retain a copy of such records.  In addition, for the
         duration of this Agreement, the Sub-Adviser shall preserve for the
         periods prescribed by Rule 31a-2 under the 1940 Act any such records
         as are required to be maintained by it pursuant to this Agreement, and
         shall transfer said records to any
<PAGE>   3

         successor Sub-Adviser upon the termination of his Agreement (or, if
         there is no successor Sub-Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance with the Trust's Declaration of Trust
         (as defined herein), the Prospectus, the instructions and directions
         of the Board of Trustees of the Trust, the requirements of the 1940
         Act, the Internal Revenue Code of 1986, and all other applicable
         federal and state laws and regulations, as each is amended from time
         to time.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser
<PAGE>   4

         agrees to accept as full compensation therefor, a sub-advisory fee at
         the rate specified in the Schedule(s) which is attached hereto and
         made part of this Agreement.  The fee will be calculated based on the
         average monthly market value of the Assets under the Sub-Adviser's
         management and will be paid to the Sub-Adviser monthly.  Except as may
         otherwise be prohibited by law or regulation (including any then
         current SEC staff thereon), the Sub-Adviser may, in its discretion and
         from time to time, waive a portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with the performance of its obligations under
         this Agreement, except a loss resulting from a breach of fiduciary
         duty with respect to the receipt of compensation for services (in
         which case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.

6.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; the actions of
         the Sub-Adviser under this Agreement; provided, however, that the
         Sub-Adviser's obligation under this Section 6 shall be reduced to the
         extent that the claim against, or the loss, liability or damage
         experienced by the Adviser, is caused by or is otherwise directly
         related to the Adviser's own willful misfeasance, bad faith or
         negligence, or to the reckless disregard of its duties under this
         Agreement.

7.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio.

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         Adviser.  This Agreement shall terminate automatically and immediately
         in the event of its assignment, or in the event of a termination of
         the Adviser's agreement with the Trust.  As used in this Section 7,
         the terms "assignment" and "vote of a majority of the outstanding
         voting securities" shall have the respective meanings set forth in the
         1940 Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the Commission under the 1940 Act.
<PAGE>   5

8.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

9.       SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

10.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:            SEI Financial Management Corporation
                                       680 East Swedesford Road
                                       Wayne, PA 19087
                                       Attention:  Legal Department
                                      
         To the Sub-Adviser at:        Apodaca-Johnston Capital Management, Inc.
                                       50 California Street
                                       Suite 3315
                                       San Francisco, CA 94111
                                       Attention: President

11.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

                                                                      
SEI Financial Management Corporation       Apodaca-Johnston Capital Management, 
                                           Inc.                               
                                                                              
By:                                        By:                                
     ------------------------                   -------------------------------
                                                                              
Name:                                      Name:                              
     ------------------------                   -------------------------------
                                                                              
Title:                                     Title:                             
                                                                              
     ------------------------                   -------------------------------
<PAGE>   6

                                 SCHEDULE A
                                   TO THE
                SUB-ADVISORY AGREEMENT DATED AUGUST ___, 1995
                                   BETWEEN
                    SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                  APODACA-JOHNSTON CAPITAL MANAGEMENT, INC.


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Small Cap Portfolio                                      .50%

<PAGE>   1
                                                                EXHIBIT 5(f)


                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this ______ day of ___________, 1996, between SEI
Financial Management Corporation, (the "Adviser") and BEA Associates (the
"Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ______, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the High Yield Bond
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage the
         investment of all of the securities and other assets of the Portfolio
         entrusted to it hereunder (the "Assets") including the purchase,
         retention and disposition of  the Assets, in accordance with the
         Portfolio's investment objectives, policies and restrictions as stated
         in the Portfolio's prospectus and statement of additional information,
         as currently in effect and as amended or supplemented from time to
         time (referred to collectively as the "Prospectus"), and subject to
         the following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets will
         be purchased, retained or sold by the Portfolio, and what portion of
         the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the investment
         objectives, policies and limitations with respect to the Portfolio set
         forth in the Trust's Declaration of Trust (as defined herein) and  the
         Prospectus and with applicable instructions and directions of the
         Adviser and of the Board of Trustees of the Trust and will conform to
         and comply with the requirements of the 1940 Act, the Internal Revenue
         Code of 1986, and all other applicable federal and state laws and
         regulations, as each is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as provided in subparagraph (a) and will place orders
         with or through such persons, brokers or dealers, including the
         Sub-Adviser or affiliates thereof, in accordance with the policy with
         respect to brokerage set forth in the Portfolio's Registration 
         Statement and Prospectus or as the Trust's Board of Trustees or the
         Adviser may direct from time to
<PAGE>   2

         time, in conformity with federal securities laws.  In executing
         Portfolio transactions and selecting brokers or dealers, the
         Sub-Adviser will use its best efforts to seek on behalf of the
         Portfolio the best overall terms available.  In assessing the best
         overall terms available for any transaction, the Sub-Adviser shall
         consider all factors that it deems relevant, including the breadth of
         the market in the security, the price of the security, the financial
         condition and execution capability of the broker or dealer, and the
         reasonableness of the commission, if any, both for the specific
         transaction and on a continuing basis.  In evaluating the best overall
         terms available, and in selecting the broker-dealer to execute a
         particular transaction the Sub-Adviser may also consider the brokerage
         and research services (as those terms are defined in Section 28(e) of
         the Securities Exchange Act of 1934) provided to the Portfolio and/or
         other accounts over which the Sub-Adviser or an affiliate of the
         Sub-Adviser may exercise investment discretion.  The Sub-Adviser is
         authorized to pay to a broker or dealer who provides such brokerage
         and research services a commission for executing a portfolio
         transaction for  the Portfolio which is in excess of the amount of
         commission another broker or dealer would have charged for effecting
         that transaction if, but only if, the Sub-Adviser determines in good
         faith that such commission was reasonable in relation to the value of
         the brokerage and research services provided by such broker or dealer
         - - viewed in terms of that particular transaction or in terms of the
         overall responsibilities of the Sub-Adviser to the Portfolio and the
         accounts as to which the Sub-Adviser exercises investment discretion.
         It is recognized that the services provided by such brokers or dealers
         may be useful to the Sub-Adviser in connection with the Sub-Adviser's
         services to other clients.  In no instance, however, will any of the
         Portfolio's Assets be purchased from or sold to the Adviser,
         Sub-Adviser, the Trust's principal underwriter, or any affiliated
         person of either the Trust, the Sub-Adviser or the principal
         underwriter, acting as principal in the transaction, except to the
         extent permitted by the Securities and Exchange Commission and the
         1940 Act.  On occasions when the Sub-Adviser deems the purchase or
         sale of a security to be in the best interest of the Portfolio as well
         as other customers, the Sub-Adviser may, to the extent permitted by
         applicable laws and regulations, but shall not be obligated to,
         aggregate the securities to be sold or purchased in order to obtain
         the best execution and lower brokerage commissions, if any.  In such
         event, allocation of the securities so purchased or sold, as well as
         expenses incurred in the transaction, will be made by the Sub-Adviser
         in the manner it considers to be fair and equitable and consistent
         with its fiduciary obligation to the Portfolio, and, if applicable, to
         other customers.

         The Adviser acknowledges that in order to comply with federal
         securities laws and related regulatory requirements, there may be
         periods when the Sub-Adviser will not be permitted to initiate or
         recommend certain types of transactions in the securities or issuers
         for which affiliates of the Sub-Adviser are performing investment
         banking services, and neither the Trust nor the Adviser will be
         advised of that fact.  For example, during certain periods when
         affiliates of the Sub-Adviser are engaged in an underwriting or other
         distribution of a company's securities, the Sub-Adviser may be
         prohibited from purchasing or recommending the purchase of certain
         securities of that company for its clients.  Similarly, the
         Sub-Adviser may on occasion be prohibited from selling or recommending
         the sale of securities of a company for which affiliates are providing
         investment banking services.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions
<PAGE>   3

         involving the Assets required by subparagraphs (b)(5), (6), (7), (9),
         (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940 Act and
         shall render to the Adviser or the Trust's Board of Trustees such
         periodic and special reports as the Adviser or the Trust's Board of
         Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.  The Sub-Adviser shall also
         furnish to the Adviser any other information relating to the Assets
         that is required to be filed by the Adviser or the Trust with the
         Securities and Exchange Commission ("SEC") or sent to shareholders
         under the 1940 Act (including the rules adopted thereunder) or any
         exemptive or other relief that the Adviser or the Trust obtains from
         the SEC.  The Sub-Adviser agrees that all records that it maintains on
         behalf of the Portfolio are property of the Portfolio and the
         Sub-Adviser will surrender promptly to the Portfolio any of such
         records upon the Portfolio's request; provided, however, that the
         Sub-Adviser may retain a copy of such records.  In addition, for the
         duration of this Agreement, the Sub-Adviser shall preserve for the
         periods prescribed by Rule 31a-2 under the 1940 Act any such records
         as are required to be maintained by it pursuant to this Agreement, and
         shall transfer said records to any successor Sub-Adviser upon the
         termination of this Agreement (or, if there is no successor 
         Sub-Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Assets and shall provide the Adviser with such information upon
         request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to other clients, as long as
         such services do not impair the services rendered to the Adviser or
         the Trust.  The Sub-Adviser may give advice, and take action, with
         respect to any of its other clients that may differ from the advice
         given, or the time or nature of action taken, with respect to the
         Portfolio.  The Sub-Adviser shall have no obligation to purchase or
         sell for the Portfolio or to recommend for purchase or sale by the
         Portfolio, any securities that the Sub-Adviser, its principals,
         affiliates or employees may purchase for themselves or for any other
         clients.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance, with respect to the
<PAGE>   4

         Portfolio, with the Trust's Declaration of Trust (as defined herein),
         the Prospectus, the instructions and directions of the Board of
         Trustees of the Trust, the requirements of the 1940 Act, the Internal
         Revenue Code of 1986, and all other applicable federal and state laws
         and regulations, as each is amended from time to time.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

         Copies of any amendments to the above documents will be furnished
         promptly to the Sub-Adviser.

4.       COMPENSATION TO THE SUB-ADVISER. For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any then current SEC staff interpretation), the
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.


5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with the performance of its obligations under
         this Agreement, except a loss resulting from a breach of fiduciary
         duty with respect to the receipt of compensation for services (in
         which case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.

         The Sub-Adviser shall not be responsible for any loss incurred by
         reason of any act or omission of any broker-dealer; provided,
         however, that the Sub-Adviser shall use reasonable care in its
         selection and use of brokers in effecting transactions for the
         Portfolio.  The Sub-Adviser shall have no obligation to seek to obtain
         any material non-public ("inside") information about any issuer of
         securities, nor to purchase or sell, or to
<PAGE>   5

         recommend for purchase or sale, for the Portfolio the securities of
         any issuer on the basis of any such information as may come into its
         possession.

         The Adviser acknowledges and agrees that the Sub-Adviser makes no
         representation and warranty, express or implied, that any level of
         performance or investment results will be achieved by the Portfolio or
         that the Portfolio will perform comparably with any standard or index,
         including other clients of the Sub-Adviser whether public or private.

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all prospectuses,
         proxy statements, reports to stockholders, sales literature or other
         materials prepared for distribution to stockholders of the Portfolios,
         the Trust or the public that refer to the Sub-Adviser or its clients
         in any way prior to use thereof and not to use such material if the
         Sub-Adviser reasonably objects in writing within five business days
         (or such other period as may be mutually agreed) after receipt
         thereof.  The Sub-Adviser's right to object to such materials is
         limited to the portions of such materials that expressly relate to the
         Sub-Adviser, its services and its clients.  The Adviser agrees to use
         its reasonable best efforts to ensure that materials prepared by its
         agents or its affiliates that refer to the Sub-Adviser or its clients
         in any way are consistent with those materials previously approved by
         the Sub-Adviser as referenced in the first sentence of this
         paragraph.  Sales literature may be furnished to the Sub-Adviser by
         first class or overnight mail, facsimile transmission equipment or
         hand delivery.

7.       PORTFOLIO COMPOSITION.  The Adviser shall provide (or cause the
         Trust's custodian to provide) timely information to the Sub-Adviser
         regarding such matters as the composition of the Assets and cash
         available for investment in the Portfolio and cash requirements (with
         respect to the redemption of Portfolio shares) and such other
         information as the parties may reasonably agree upon.

8.       EXPENSES.  The Sub-Adviser shall bear expenses incurred by it in
         connection with its duties hereunder, including payment for
         compensation of and office space for its officers and employees
         engaged in providing services hereunder, but shall not be responsible
         for any expenses of the Trust.

9.       CUSTODY.  The cash and assets of the Portfolio shall be held by
         CoreStates Bank, N.A. (the "Custodian"), which the Adviser hereby
         represents has agreed to act as custodian for the Portfolio.  The
         Sub-Adviser shall at no time have custody or physical control of the
         Assets in the Portfolio.  In addition, the Sub-Adviser shall not be
         liable for any act or omission of the Custodian.  The Sub-Adviser
         shall give instructions to the Custodian in writing or orally (at the
         discretion of the Custodian) and confirmed in writing as soon as
         practicable thereafter.  The Adviser shall instruct the Custodian to
         provide the Sub-Adviser with such periodic reports concerning the
         status of the Portfolio as the Sub-Adviser and the Adviser may agree
         from time to time.  The Adviser shall provide the Sub-Adviser with a
         copy of the Portfolio's agreement with the Custodian and any
         modification thereto and will notify the Sub-Adviser in advance of a
         change in the Custodian.

10.      REPRESENTATIONS AND WARRANTIES OF THE ADVISER.  The Adviser represents
         and warrants
<PAGE>   6

         to the Sub-Adviser that (a) the Adviser has the authority to act on
         behalf of the Trust and has and will continue to convey to the
         Sub-Adviser all relevant information regarding the Trust and the
         Portfolio including, but not limited to, any relevant investment
         restrictions of the Trust and the Portfolio; (b) this Agreement has
         been duly authorized, executed and delivered by the Adviser and
         constitutes its valid and binding obligation, enforceable in
         accordance with its terms; (c) no governmental authorizations,
         approvals, consents or filings are required in connection with the
         execution, delivery or performance of this Agreement by the Adviser;
         (d) the execution, delivery and performance of this Agreement by the
         Adviser will not violate or result in any default under the Adviser's
         certificate of incorporation or by-laws (or equivalent constituent
         documents), any contract or other agreement to which the Adviser is a
         party or by which its assets may be bound or any statute or any rule,
         regulation or order of any government agency or body; (e) the Assets
         of the Portfolio do not and will not constitute assets of any employee
         benefit plan within the meaning of Section 3(3) of the Employee
         Retirement Security Act of 1974 or Section 4975(e) of the Internal
         Revenue Code of 1986 and this Agreement and the transactions
         contemplated hereby will not constitute an investment by a "benefit
         plan investor" within the meaning of DOL Reg. Section 2510.3-101; and
         (f) the Adviser has received a copy of Part II of the Sub-Adviser's
         Form ADV as most recently filed with the SEC.

11.      DIRECTIONS TO SUB-ADVISER.  All directions by or on behalf of the
         Adviser to the Sub-Adviser shall be in writing signed either (a) by a
         director or officer of the Adviser, or (b) by a duly authorized agent
         of the Adviser.  The Sub-Adviser shall be fully protected in relying
         upon any direction signed in the appropriate manner with respect to
         any instruction, direction or approval of the Adviser.  The
         Sub-Adviser shall also be fully protected when acting upon any
         instrument, certificate or paper the Sub-Adviser reasonably believes
         to be genuine and to be signed or presented by the proper person or
         persons.  The Sub-Adviser shall be under no duty to make any
         investigation or inquiry as to any statement contained in any such
         writing and may accept the same as conclusive evidence of the truth
         and accuracy of the statements therein contained.

12.      PROXIES, TENDER OFFERS, CLASS ACTIONS, ETC.  Subject to any other
         written instructions of the Adviser, the Sub-Adviser is hereby
         appointed the Adviser's agent and attorney-in-fact on behalf of the
         Portfolio in its discretion to vote, tender or convert any of the
         Assets; to execute proxies, waivers, consents, account documentation,
         agreements, contracts, and other instruments with respect to the
         Assets; to endorse, transfer or deliver the Assets and to participate
         in or consent to any class action, plan of reorganization, merger,
         combination, consolidation, liquidation or similar plan with reference
         to the Assets; and the Sub-Adviser shall not incur any liability to
         the Adviser or the Portfolio by reason of any exercise of, or failure
         to exercise, any such discretion.  Notwithstanding the provisions of
         this Section 12, if the Sub-Adviser determines that it, or any of its
         affiliates, has an adverse or potentially adverse interest with
         respect to the vote or other requested action, the Sub-Adviser shall
         so inform the Adviser, which shall thereupon become responsible for
         the determination on such vote or other action.

13.      INDEMNIFICATION.  (a) The Adviser shall indemnify and hold harmless
         the Sub-Adviser, its officers, directors, employees, agents and each
         person, if any, who controls the Sub-Adviser within the meaning of
         Section 15 of the Securities Act of 1933 (the "1933 Act") (any and all
         such persons shall be referred to as "Sub-Adviser Indemnified Party"),
<PAGE>   7

         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) howsoever
         arising from or in connection with this Agreement or the performance
         by the Adviser of its duties hereunder; provided, however, that the
         Adviser shall not be required to indemnify or otherwise hold any
         particular Sub-Adviser Indemnified Party harmless under this Section
         13 where the claim against, or the loss, liability or damage
         experienced by the Sub-Adviser Indemnified Party is caused by or is
         otherwise directly related to such Sub-Adviser Indemnified Party's own
         willful misfeasance, bad faith or negligence, or to the reckless
         disregard of its duties under this Agreement.

         (b) The Sub-Adviser shall indemnify and hold harmless the Adviser, its
         officers, directors, employees, agents and each person, if any, who
         controls the Adviser within the meaning of Section 15 of the 1933 Act
         (any and all such persons shall be referred to as "Adviser Indemnified
         Party") from and against any and all claims, losses, liabilities or
         damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with this Agreement
         or the performance by the Sub-Adviser of its duties hereunder;
         provided, however, that the Sub-Adviser shall not be required to
         indemnify or otherwise hold any particular Adviser Indemnified Party
         harmless under this Section 13 where the claim against, or the loss,
         liability or damage experienced by the Adviser Indemnified Party, is
         caused by or is otherwise directly related to such Adviser Indemnified
         Party's own willful misfeasance, bad faith or negligence, or to the
         reckless disregard of its duties under this Agreement.

14.      DURATION AND TERMINATION.  This Agreement shall become effective as of
         the date hereof.

         This Agreement shall continue in effect until the earlier of (i) a
         period two years from the date hereof only so long as continuance is
         specifically approved at least annually in conformance with the 1940
         Act or (ii) the approval by a majority of the outstanding voting
         securities of the Portfolio of an Investment Sub-Advisory Agreement
         with substantially the same terms and conditions except with respect
         to compensation to the Sub-Adviser; provided, however, that this
         Agreement may be terminated with respect to the Portfolio (a) by the
         Portfolio at any time, without the payment of any penalty, by the vote
         of a majority of Trustees of the Trust or by the vote of a majority of
         the outstanding voting securities of such Portfolio, (b) by the
         Adviser at any time, without the payment of any penalty, on not more
         than 60 days' nor less than 30 days' written notice to the
         Sub-Adviser, or (c) by the Sub-Adviser at any time, without the
         payment of any penalty, on 90 days' written notice to the Adviser.
         This Agreement shall terminate automatically and immediately in the
         event of its assignment, or in the event of a termination of the
         Adviser's agreement with the Trust.  As used in this Section 14, the
         terms "assignment" and "vote of a majority of the outstanding voting
         securities" shall have the respective meanings set forth in the 1940
         Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the SEC under the 1940 Act.

15.      GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.
<PAGE>   8

16.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

17.      NOTICE.  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:               SEI Financial Management Corporation
                                          680 East Swedesford Road
                                          Wayne, PA 19087
                                          Attention:  Legal Department
                                         
         To the Sub-Adviser at:           BEA Associates
                                          153 East 53rd Street
                                          New York, NY 10022
                                          Attn.: President

18.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.
<PAGE>   9


Where the effect of a requirement of the 1940 Act reflected in any provision of
this Agreement is altered by a rule, regulation or order of the SEC, whether of
special or general application, such provision shall be deemed to incorporate
the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation                     BEA Associates

By:                                                      By:
- --------------------------------------------------------------------------------

Name:                                                    Name:
- --------------------------------------------------------------------------------

Title:                                                   Title:
- --------------------------------------------------------------------------------
<PAGE>   10

                                 SCHEDULE A
                                   TO THE
                           SUB-ADVISORY AGREEMENT
                                   BETWEEN
                    SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                               BEA ASSOCIATES


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

High Yield Bond Portfolio                                .3375%

<PAGE>   1
                                                                   Exhibit 5(g)



                        INVESTMENT SUB-ADVISORY AGREEMENT
                       SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this ____ day of _________, 1996, between SEI Financial
Management Corporation, (the "Adviser") and BlackRock Financial Management, Inc.
(the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Core Fixed Income
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to retain
the Sub-Adviser to provide investment advisory services to the Adviser in
connection with the management of the Portfolio, and the Sub-Adviser is willing
to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER. Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of the
         securities and other assets of the Portfolio entrusted to it hereunder
         (the "Assets"), including the purchase, retention and disposition of
         the Assets, in accordance with the Portfolio's investment objectives,
         policies and restrictions as stated in the Portfolio's prospectus and
         statement of additional information, as currently in effect and as
         amended or supplemented from time to time (referred to collectively as
         the "Prospectus"), and subject to the following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets will
         be purchased, retained or sold by the Portfolio, and what portion of
         the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of Trustees
         of the Trust and will conform to and comply with the requirements of
         the 1940 Act, the Internal Revenue Code of 1986, and all other
         applicable federal and state laws and regulations, as each is amended
         from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio 

                                        1
<PAGE>   2
         as provided in subparagraph (a) and will place orders with or through
         such persons, brokers or dealers to carry out the policy with respect
         to brokerage set forth in the Portfolio's Registration Statement (as
         defined herein) and Prospectus or as the Board of Trustees or the
         Adviser may direct from time to time, in conformity with federal
         securities laws. In executing Portfolio transactions and selecting
         brokers or dealers, the Sub-Adviser will use its best efforts to seek
         on behalf of the Portfolio the best overall terms available. In
         assessing the best overall terms available for any transaction, the
         Sub-Adviser shall consider all factors that it deems relevant,
         including the breadth of the market in the security, the price of the
         security, the financial condition and execution capability of the
         broker or dealer, and the reasonableness of the commission, if any,
         both for the specific transaction and on a continuing basis. In
         evaluating the best overall terms available, and in selecting the
         broker-dealer to execute a particular transaction, the Sub-Adviser may
         also consider the brokerage and research services provided (as those
         terms are defined in Section 28(e) of the Securities Exchange Act of
         1934). Consistent with any guidelines established by the Board of
         Trustees of the Trust, the Sub-Adviser is authorized to pay to a broker
         or dealer who provides such brokerage and research services a
         commission for executing a portfolio transaction for the Portfolio
         which is in excess of the amount of commission another broker or dealer
         would have charged for effecting that transaction if, but only if, the
         Sub-Adviser determines in good faith that such commission was
         reasonable in relation to the value of the brokerage and research
         services provided by such broker or dealer - - viewed in terms of that
         particular transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio. In addition, the Sub-Adviser if
         authorized to allocate purchase and sale orders for securities to
         brokers or dealers (including brokers and dealers that are affiliated
         with the Adviser, Sub-Adviser or the Trust's principal underwriter) to
         take into account the sale of shares of the Trust if the Sub-Adviser
         believes that the quality of the transaction and the commission are
         comparable to what they would be with other qualified firms. In no
         instance, however, will the Portfolio's Assets be purchased from or
         sold to the Adviser, Sub-Adviser, the Trust's principal underwriter, or
         any affiliated person of either the Trust, Adviser, the Sub-Adviser or
         the principal underwriter, acting as principal in the transaction,
         except to the extent permitted by the Securities and Exchange
         Commission ("SEC") and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act. The Sub-Adviser shall provide to the Adviser or the Board of
         Trustees such periodic and special reports, balance sheets or financial
         information, and such other information with regard to its affairs as
         the Adviser or Board of Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the Assets
         required to be maintained by the Sub-Adviser under this Agreement and
         shall timely furnish to the Adviser all information relating to the
         Sub-Adviser's services under this Agreement needed by the Adviser to 
         keep the other books and records of the 

                                        2
<PAGE>   3
         Portfolio required by Rule 31a-1 under the 1940 Act. The Sub-Adviser
         shall also furnish to the Adviser any other information relating to the
         Assets that is required to be filed by the Adviser or the Trust with
         the SEC or sent to shareholders under the 1940 Act (including the rules
         adopted thereunder) or any exemptive or other relief that the Adviser
         or the Trust obtains from the SEC. The Sub-Adviser agrees that all
         records that it maintains on behalf of the Portfolio are property of
         the Portfolio and the Sub-Adviser will surrender promptly to the
         Portfolio any of such records upon the Portfolio's request; provided,
         however, that the Sub-Adviser may retain a copy of such records. In
         addition, for the duration of this Agreement, the Sub-Adviser shall
         preserve for the periods prescribed by Rule 31a-2 under the 1940 Act
         any such records as are required to be maintained by it pursuant to
         this Agreement, and shall transfer said records to any successor
         sub-adviser upon the termination of this Agreement (or, if there is no
         successor sub-adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser shall
         be free to render similar services to others, as long as such services
         do not impair the services rendered to the Adviser or the Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to fulfill
         its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio. The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may be
         furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER. The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement; provided,
         however, that in connection with its management of the Assets, nothing
         herein shall be construed to relieve the Sub-Adviser of responsibility
         for compliance with the Trust's Declaration of Trust (as defined
         herein), the Prospectus, the instructions and directions of the Board
         of Trustees of the Trust, the requirements of the 1940 Act, the
         Internal Revenue Code of 1986, and all other applicable federal and 
         state laws and regulations, as each is amended from time to 

                                        3
<PAGE>   4
         time.

3.       DELIVERY OF DOCUMENTS. The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such Agreement
         and Declaration of Trust, as in effect on the date of this Agreement
         and as amended from time to time, herein called the "Declaration of
         Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER. For the services to be provided by the
         Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement. The fee will
         be calculated based on the average monthly market value of the Assets
         under the Sub-Adviser's management and will be paid to the Sub-Adviser
         monthly. Except as may otherwise be prohibited by law or regulation
         (including any then current SEC staff interpretation), the Sub-Adviser
         may, in its discretion and from time to time, waive a portion of its
         fee.

5.       INDEMNIFICATION. The Sub-Adviser shall indemnify and hold harmless the
         Adviser from and against any and all claims, losses, liabilities or
         damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; provided,
         however, that the Sub-Adviser's obligation under this Section 5 shall
         be reduced to the extent that the claim against, or the loss, liability
         or damage experienced by the Adviser, is caused by or is otherwise
         directly related to the Adviser's own willful misfeasance, bad faith or
         negligence, or to the reckless disregard of its duties under this
         Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) howsoever
         arising from or in connection with the performance of the Adviser's
         obligations under this Agreement; provided, however, that the Adviser's
         obligation under this Section 5 shall be reduced to the extent that the
         claim against, or the loss, liability or damage experienced by the
         Sub-Adviser, is caused by or is otherwise directly related to the
         Sub-Adviser's own willful misfeasance, bad faith or negligence, or to
         the reckless disregard of its duties under this Agreement.

                                        4
<PAGE>   5
6.       DURATION AND TERMINATION. This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio. This
         Agreement shall continue in effect for a period of more than two years
         from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio and, (b) by the Adviser at any time, without the payment of
         any penalty, on not more than 60 days' nor less than 30 days' written
         notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         Adviser. This Agreement shall terminate automatically and immediately
         in the event of its assignment, or in the event of a termination of the
         Adviser's agreement with the Trust. As used in this Section 6, the
         terms "assignment" and "vote of a majority of the outstanding voting
         securities" shall have the respective meanings set forth in the 1940
         Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the Commission under the 1940 Act.

7.       GOVERNING LAW. This Agreement shall be governed by the internal laws of
         the Commonwealth of Massachusetts, without regard to conflict of law
         principles; provided, however, that nothing herein shall be construed
         as being inconsistent with the 1940 Act.

8.       SEVERABILITY. Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby. This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

9.       NOTICE: Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

To the Adviser at:                         SEI Financial Management
                                           Corporation
                                           680 East Swedesford Road
                                           Wayne, PA 19087
                                           Attention:  Legal Department

To the Sub-Adviser at:                     BlackRock Financial Management, Inc.
                                           345 Park Avenue, 30th Floor
                                           New York, NY 10154
                                           Attn:  President

                                        5
<PAGE>   6
10.      ENTIRE AGREEMENT. This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter. This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust is on file with the Secretary of
State of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first written
above.

SEI Financial Management Corporation       BlackRock Financial Management, Inc.
By:                                        By:

- ------------------------------------       ------------------------------------

Name:                                      Name:

                                           ------------------------------------

Title:  Vice President                     Title:

                                           ------------------------------------

                                        6
<PAGE>   7
                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                     BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                       AND
                      BLACKROCK FINANCIAL MANAGEMENT, INC.



Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Core Fixed Income Portfolio                 .15%

                                        7


<PAGE>   1
                                                                    EXHIBIT 5(h)
                                                                
                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this ____ day of ____________, 1996, between SEI
Financial Management Corporation, (the "Adviser") and Boston Partners Asset
Management, L.P. (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June _____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Small Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information, as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, on a discretionary basis, in consultation with
         and subject to the direction of the Adviser, determine from time to
         time what Assets will be purchased, retained or sold by the Portfolio,
         and what portion of the Assets will be invested or held uninvested in
         cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as




                                      1
<PAGE>   2

         provided in subparagraph (a) and will place orders with or through
         such persons, brokers or dealers to carry out the policy with respect
         to brokerage set forth in the Portfolio's Registration Statement (as
         defined herein) and Prospectus or as the Board of Trustees or the
         Adviser may direct from time to time, in conformity with federal
         securities laws.  In executing Portfolio transactions and selecting
         brokers or dealers, the Sub-Adviser will use its best efforts to seek
         on behalf of the Portfolio the best overall terms available.  In
         assessing the best overall terms available for any transaction, the
         Sub-Adviser shall consider all factors that it deems relevant,
         including the breadth of the market in the security, the price of the
         security, the financial condition and execution capability of the
         broker or dealer, and the reasonableness of the commission, if any,
         both for the specific transaction and on a continuing basis.  In
         evaluating the best overall terms available, and in selecting the
         broker-dealer to execute a particular transaction, the Sub-Adviser may
         also consider the brokerage and research services provided (as those
         terms are defined in Section 28(e) of the Securities Exchange Act of
         1934).  Consistent with any guidelines established by the Board of
         Trustees of the Trust, the Sub-Adviser is authorized to pay to a
         broker or dealer who provides such brokerage and research services a
         commission for executing a portfolio transaction for the Portfolio
         which is in excess of the amount of commission another broker or
         dealer would have charged for effecting that transaction if, but only
         if, the Sub-Adviser determines in good faith that such commission was
         reasonable in relation to the value of the brokerage and research
         services provided by such broker or dealer - - viewed in terms of that
         particular transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser if
         authorized to allocate purchase and sale orders for securities to
         brokers or dealers (including brokers and dealers that are affiliated
         with the Adviser, Sub-Adviser or the Trust's principal underwriter) to
         take into account the sale of shares of the Trust if the Sub-Adviser
         believes that the quality of the transaction and the commission are
         comparable to what they would be with other qualified firms.  In no
         instance, however, will the Portfolio's Assets be purchased from or
         sold to the Adviser, Sub-Adviser, the Trust's principal underwriter,
         or any affiliated person of either the Trust, Adviser, the Sub-Adviser
         or the principal underwriter, acting as principal in the transaction,
         except to the extent permitted by the Securities and Exchange
         Commission ("SEC") and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall provide to the Adviser or the Board
         of Trustees such periodic and special reports, balance sheets or
         financial information, and such other information with regard to its
         affairs as the Adviser or Board of Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.  The Sub-Adviser shall also
         furnish to the Adviser any other information relating to the Assets
         that is required to be filed by the Adviser or the Trust with the SEC
         or sent to shareholders under the 1940 Act (including the rules





                                      2
<PAGE>   3

         adopted thereunder) or any exemptive or other relief that the Adviser
         or the Trust obtains from the SEC.  The Sub-Adviser agrees that all
         records that it maintains on behalf of the Portfolio are property of
         the Portfolio and the Sub-Adviser will surrender promptly to the
         Portfolio any of such records upon the Portfolio's request; provided,
         however, that the Sub-Adviser may retain a copy of such records.  In
         addition, for the duration of this Agreement, the  Sub-Adviser shall
         preserve for the periods prescribed by Rule 31a-2 under the 1940 Act
         any such records as are required to be maintained by it pursuant to
         this Agreement, and shall transfer said records to any successor
         sub-adviser upon the termination of this Agreement (or, if there is no
         successor sub-adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.  In addition, it is understood that the Sub-Adviser performs
         investment advisory services for various clients other than the
         Adviser.  The Sub-Adviser may give advice and take action in the
         performance of its duties with respect to any of its other clients
         which may differ from the advice given, or the timing or nature of
         action taken, with respect to the Assets.  Nothing in this Agreement
         shall be deemed to impose upon the Sub-Adviser any obligation to
         purchase or sell for the Portfolio any security or other property
         which Sub-Adviser purchases or sells for its own account or for the
         account of any other client.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance with the Trust's Declaration of Trust
         (as defined herein), the Prospectus, the instructions and directions
         of the Board of Trustees of the Trust, the requirements of the 1940
         Act, the Internal Revenue Code of 1986, and all other applicable
         federal and state laws and regulations, as each is amended from time
         to time.





                                      3
<PAGE>   4

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any then current SEC staff interpretation), the
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; provided,
         however, that the Sub-Adviser's obligation under this Section 5 shall
         be reduced to the extent that the claim against, or the loss,
         liability or damage experienced by the Adviser, is caused by or is
         otherwise directly related to an explicit instruction by the Adviser
         or the Adviser's own willful misfeasance, bad faith or negligence, or
         to the reckless disregard of its duties under this Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) howsoever
         arising from or in connection with the performance of the Adviser's
         obligations under this Agreement; provided, however, that the
         Adviser's obligation under this Section 5 shall be reduced to the
         extent that the claim against, or the loss, liability or damage
         experienced by the Sub-Adviser, is caused by or is otherwise directly
         related to the Sub-Adviser's own willful misfeasance, bad faith or
         negligence, or to the reckless disregard of its duties under this
         Agreement.

6.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio.  This
         Agreement shall continue in effect for a period of more than two years
         from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this





                                      4
<PAGE>   5

         Agreement may be terminated with respect to the Portfolio (a) by the
         Portfolio at any time, without the payment of any penalty, by the vote
         of a majority of Trustees of the Trust or by the vote of a majority of
         the outstanding voting securities of the Portfolio, (b) by the Adviser
         at any time, without the payment of any penalty, on not more than 60
         days' nor less than 30 days' written notice to the Sub-Adviser, or (c)
         by the Sub-Adviser at any time, without the payment of any penalty,
         on 90 days' written notice to the Adviser.  This Agreement shall
         terminate automatically and immediately in the event of its
         assignment, or in the event of a termination of the Adviser's
         agreement with the Trust.  As used in this Section 6, the terms
         "assignment" and "vote of a majority of the outstanding voting
         securities" shall have the respective meanings set forth in the 1940
         Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the SEC under the 1940 Act.

7.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

8.       SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

9.       NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:               SEI Financial Management Corporation
                                          680 East Swedesford Road
                                          Wayne, PA 19087
                                          Attention:  Legal Department
                                          
         To the Sub-Adviser at:           Boston Partners Asset Management, L.P.
                                          One Financial Center
                                          43rd Floor
                                          Boston, MA 02111
                                          attn:  President

10.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

11.      INFORMATION.  The Sub-Adviser will notify the Adviser of any change in
         the composition of its partners within a reasonable time after such
         change.





                                      5
<PAGE>   6


12.      FORM ADV, PART II.  Adviser represents that Sub-Adviser has delivered
         to it a copy of Part II of Sub-Adviser's current Form ADV as required
         by the Investment Advisers Act of 1940.  If Adviser did not receive
         Part II of Sub-Adviser's Form ADV at least 48 hours prior to entering
         into the Agreement, Adviser may terminate this Agreement without
         penalty within five business days hereof.

         A copy of the Declaration of Trust is on file with the Secretary of
State of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation     Boston Partners Asset Management, L.P. 
                                                                                
                                                                                
By:                                      By:  Boston Partners, Inc., the General
     -------------------------------          Partner                           
                                              
                                         By:                                    
                                              ----------------------------------
                                                                                
Name:                                    Name:                                  
     -------------------------------          ----------------------------------
Title:                                   Title:                                 
      ------------------------------           ---------------------------------





                                      6
<PAGE>   7

                                  SCHEDULE A
                                    TO THE
                            SUB-ADVISORY AGREEMENT
                                   BETWEEN
                     SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                    BOSTON PARTNERS ASSET MANAGEMENT, L.P.



Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Small Cap Portfolio                                      .50%





                                      7

<PAGE>   1

                                                              EXHIBIT 5(i)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of ________, 1996, between SEI Financial
Management Corporation, (the "Adviser") and Firstar Investment Research &
Management Company (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June _____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Core Fixed Income
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information, as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets
         will be purchased, retained or sold by the Portfolio, and what portion
         of the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as provided in subparagraph (a) and will place orders
         with or through such persons, brokers or dealers to carry out the
         policy with respect to brokerage set forth in the Portfolio's
         Registration Statement (as defined herein) and Prospectus or as the
         Board of Trustees or the Adviser may direct from time to time, in
         conformity with federal securities laws.  In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will
         use its best efforts to seek on behalf of the Portfolio the best
         overall terms available.  In assessing the best overall terms
         available for any transaction, the Sub-Adviser shall consider all
         factors that it deems relevant, including the breadth of the market in
         the security, the price of the security, the financial condition and
         execution capability of the broker or dealer, and the reasonableness
         of the commission, if any, both for the specific transaction and on a
         continuing basis.  In evaluating the best overall terms available, and
         in selecting the broker-dealer to execute a particular transaction,
         the Sub-Adviser may also consider the brokerage and research services
         provided (as those terms are defined in Section 28(e) of the
         Securities Exchange Act of 1934).  Consistent with any guidelines
         established by the Board of Trustees of the Trust, The Sub-Adviser is
         authorized to pay to a broker or dealer who provides such brokerage
         and research services a commission for executing a portfolio
         transaction for the Portfolio which is in excess of the amount of
         commission another broker or dealer would have charged for effecting
         that transaction if, but only if, the Sub-Adviser determines in good
         faith that such commission was reasonable in relation to the value of
         the brokerage and research services provided by such broker or dealer
         - - viewed in terms of that particular transaction or terms of the
         overall responsibilities of the Sub-Adviser to the Portfolio.  In
         addition, the Sub-Adviser if authorized to allocate purchase and sale
         orders for securities to brokers or dealers (including brokers and
         dealers that are affiliated with the Adviser, Sub-Adviser or the
         Trust's principal underwriter) to take into account the sale of shares
         of the Trust if the Sub-Adviser believes that the quality of the
         transaction and the commission are comparable to what they would be
         with other qualified firms.  In no instance, however, will the
         Portfolio's Assets be purchased from or sold to the Adviser,
         Sub-Adviser, the Trust's principal underwriter, or any affiliated
         person of either the Trust, Adviser, the Sub-Adviser or the principal
         underwriter, acting as principal in the transaction, except to the
         extent permitted by the Securities and Exchange Commission ("SEC") and
         the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall provide to the Adviser or the Board
         of Trustees such periodic and special reports, balance sheets or
         financial information, and such other information with regard to its
         affairs as the Adviser or Board of Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this


                                      1
<PAGE>   2

         Agreement needed by the Adviser to keep the other books and records of
         the Portfolio required by Rule 31a-1 under the 1940 Act.  The
         Sub-Adviser shall also furnish to the Adviser any other information
         relating to the Assets that is required to be filed by the Adviser or
         the Trust with the SEC or sent to shareholders under the 1940 Act
         (including the rules adopted thereunder) or any exemptive or other
         relief that the Adviser or the Trust obtains from the SEC.  The
         Sub-Adviser agrees that all records that it maintains on behalf of the
         Portfolio are property of the Portfolio and the Sub-Adviser will
         surrender promptly to the Portfolio any of such records upon the
         Portfolio's request; provided, however, that the Sub-Adviser may
         retain a copy of such records.  In addition, for the duration of this
         Agreement, the Sub-Adviser shall preserve for the periods prescribed
         by Rule 31a-2 under the 1940 Act any such records as are required to
         be maintained by it pursuant to this Agreement, and shall transfer
         said records to any successor sub-adviser upon the termination of this
         Agreement (or, if there is no successor sub-adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance with the Trust's Declaration of Trust
         (as defined herein), the Prospectus, the instructions and directions
         of the Board of Trustees of the Trust, the requirements of the 1940
         Act, the Internal Revenue Code of 1986, and all other applicable
         federal and state laws and regulations, as each is amended from time
         to time.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any then current SEC staff interpretation), the
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; provided,
         however, that the Sub-Adviser's obligation under this Section 5 shall
         be reduced to the extent that the claim against, or the loss,
         liability or damage experienced by the Adviser, is caused by or is
         otherwise directly related to the Adviser's own willful misfeasance,
         bad faith or negligence, or to the reckless disregard of its duties
         under this Agreement.

6.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio.





                                       2
<PAGE>   3

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         Adviser.  This Agreement shall terminate automatically and immediately
         in the event of its assignment, or in the event of a termination of
         the Adviser's agreement with the Trust.  As used in this Section 6,
         the terms "assignment" and "vote of a majority of the outstanding
         voting securities" shall have the respective meanings set forth in the
         1940 Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the SEC under the 1940 Act.

7.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

8.       SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

9.       NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:     SEI Financial Management Corporation
                                680 East Swedesford Road
                                Wayne, PA 19087
                                Attention:  Legal Department
                                       
         To the Sub-Adviser at: Firstar Investment Research & Management Company
                                777 E. Wisconsin Avenue, Suite 1800
                                Milwaukee, WI 53202
                                Attn:  President

10.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust is on file with the Secretary of
State of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation       Firstar Investment Research & 
                                             Management Company

By:                                        By:                                
     -------------------------------            ------------------------------
                                                                              
Name:                                      Name:                              
     -------------------------------            ------------------------------
                                                                              
Title:                                     Title:                             
     -------------------------------            ------------------------------
                                              




                                       3
<PAGE>   4

                                  SCHEDULE A
                                    TO THE
                            SUB-ADVISORY AGREEMENT
                                   BETWEEN
                     SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
               FIRSTAR INVESTMENT RESEARCH & MANAGEMENT COMPANY



Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Core Fixed Income Portfolio                            .10%




                                      4

<PAGE>   1
                                                           EXHIBIT 5(j)
         

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of ______________, 1996, by and among
SEI Financial Management Corporation, (the "Adviser") and IDS Advisory Group
Inc. (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated _______, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Large Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage the
         investment of all of the securities and other assets of the Portfolio
         entrusted to it hereunder, including the purchase, retention and
         disposition of securities and other assets, in accordance with the
         Portfolio's investment objectives, policies and restrictions as stated
         in the Portfolio's prospectus and statement of additional information,
         as currently in effect and as amended or supplemented from time to
         time (referred to collectively as the "Prospectus"), and subject to
         the following:

(a)      The Sub-Adviser shall provide supervision of the Portfolio's
         investments and determine from time to time  what investments and
         securities will be purchased, retained or sold by the Portfolio, and
         what portion of the assets will be invested or held uninvested in
         cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the securities to be purchased or sold
         by the Portfolio and will place orders with or through such persons,
         brokers or dealers to carry out the policy with respect to brokerage
         set forth in the Portfolio's Registration Statement and Prospectus or
         as the Board of Trustees or the Adviser may direct from time to time,
         in conformity with federal securities laws.  In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will
         use its best efforts to seek on behalf of the Portfolio the best
         overall terms available.  In assessing the best overall terms
         available for
<PAGE>   2

         any transaction, the Sub-Adviser shall consider all factors that it
         deems relevant, including the breadth of the market in the security,
         the price of the security, the financial condition and execution
         capability of the broker or dealer, and the reasonableness of the
         commission, if any, both for the specific transaction and on a
         continuing basis.  In evaluating the best overall terms available, and
         in selecting the broker-dealer to execute a particular transaction the
         Sub-Adviser may also consider the brokerage and research services (as
         those terms are defined in Section 28(e) of the Securities Exchange
         Act of 1934) provided to the Portfolio and/or other accounts over
         which the Sub-Adviser or an affiliate of the Sub-Adviser may exercise
         investment discretion.  The Sub-Adviser is authorized, to pay to a
         broker or dealer who provides such brokerage and research services a
         commission for executing a portfolio transaction for any of the
         Portfolios which is in excess of the amount of commission another
         broker or dealer would have charged for effecting that transaction if,
         but only if, the Sub-Adviser determines in good faith that such
         commission was reasonable in relation to the value of the brokerage
         and research services provided by such broker or dealer - - viewed in
         terms of that particular transaction or terms of the overall
         responsibilities of the Sub-Adviser to the Portfolio and other
         accounts.  In addition, the Sub-Adviser is authorized to allocate
         purchase and sale orders for portfolio securities to brokers or
         dealers (including brokers and dealers that are affiliated with the
         Sub-Adviser or the Trust's principal underwriter) to take into account
         the sale of shares of the Trust if the Sub-Adviser believes that the
         quality of the transaction and the commission are comparable to what
         they would be with other qualified firms.  In no instance, however,
         will any Portfolio's securities be purchased from or sold to the
         Sub-Adviser, the Trust's principal underwriter, or any affiliated
         person of either the Trust, the Sub-Adviser or the principal
         underwriter, acting as principal in the transaction, except to the
         extent permitted by the Securities and Exchange Commission and the
         1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         the Portfolio's portfolio transactions required by subparagraphs
         (b)(5), (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1
         under the 1940 Act and shall render to the Adviser or Board of
         Trustees such periodic and special reports as the Adviser or Board of
         Trustees may reasonably request.  Upon reasonable request and for
         purposes of a Securities and Exchange Commission or other regulatory
         inspection, the Adviser will furnish Sub-Adviser with information
         maintained by it as Adviser to the Portfolio.

         The Sub-Adviser shall keep the Portfolio's books and records required
         to be maintained by the Sub-Adviser by this Agreement and shall timely
         furnish to the Adviser all information relating to the Sub-Adviser's
         services under this Agreement needed by the Adviser to keep the other
         books and records of the Portfolio required by Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall also furnish to the Adviser any other
         information that is required to be filed by the Adviser or the Trust
         with the Securities and Exchange Commission ("SEC") or sent to
         shareholders under the 1940 Act (including the rules adopted
         thereunder) or any exemptive or other relief that the Adviser or the
         Trust obtains from the SEC.  The Sub-Adviser agrees that all records
         that it maintains on behalf of the Portfolio are property of the
         Portfolio and the Sub-Adviser will surrender promptly to the Portfolio
         any of such records upon the Portfolio's request; provided, however,
         that the Sub-Adviser may retain a copy of such records.  In addition,
         for the duration of this





                                       2
<PAGE>   3

         Agreement, the  Sub-Adviser shall preserve for the periods prescribed
         by Rule  31a-2 under the 1940 Act any such records as are required to
         be maintained by it pursuant to this Agreement, and shall transfer
         said records to any successor Sub-Adviser upon the termination of his
         Agreement (or, if there is no successor Sub-Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.
        
(h)      The Sub-Adviser shall review all proxy solicitation materials
         and be responsible for voting and handling all proxies in relation to 
         the securities held in the Portfolio.  The Adviser shall instruct
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that nothing herein shall be construed to relieve
         the Sub-Adviser of responsibility for compliance with the Portfolio's
         investment objectives, policies, and restrictions, as provided in
         Section 1 hereunder.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser





                                       3
<PAGE>   4

         agrees to accept as full compensation therefor, a sub-advisory fee at
         the rate specified in the Schedule(s) which is attached hereto and
         made part of this Agreement.  The fee will be calculated based on the
         average monthly market value of investments under management and will
         be paid to the Sub-Adviser monthly.  The Sub-Adviser may, in its
         discretion and from time to time, waive a portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with the performance of the Sub-Adviser's
         obligations under this Agreement, except a loss resulting from a
         breach of fiduciary duty with respect to the receipt of compensation
         for services (in which case any award of damages shall be limited to
         the period and the amount set forth in Section 36(b)(3) of the 1940
         Act), or a loss resulting from willful misfeasance, bad faith or
         negligence on the Sub-Adviser's part in the performance of its duties
         or from reckless disregard of its obligations and duties under this
         Agreement, except as may otherwise be provided under provisions of
         applicable state law which cannot be waived or modified hereby.

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all prospectuses,
         proxy statements, reports to stockholders, sales literature or other
         materials prepared for distribution to stockholders of the Portfolios,
         the Trust or the public that refer to the Sub-Adviser or its clients
         in any way prior to use thereof and not to use material if the
         Sub-Adviser reasonably objects in writing within five business days
         (or such other period as may be mutually agreed) after receipt
         thereof.  The Sub-Adviser's right to object to such materials is
         limited to the portions of such materials that expressly relate to the
         Sub-Adviser, its services and its clients.  The Adviser agrees to use
         its reasonable best efforts to ensure that materials prepared by its
         employees or agents or its affiliates that refer to the Sub-Adviser or
         its clients in any way are consistent with those materials previously
         approved by the Sub-Adviser as referenced in the first sentence of
         this paragraph.  Sales literature may be furnished to the Sub-Adviser
         by first class or overnight mail, facsimile transmission equipment or
         hand delivery.

7.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with  the
         performance by the Sub-Adviser of its duties under this Agreement;
         provided, however, that the Sub-Adviser shall not be required to
         indemnify or otherwise hold the Adviser harmless under this Section 7
         where the claim against, or the loss, liability or damage experienced
         by the Adviser, is caused by or is otherwise directly related to the
         Adviser's own willful misfeasance, bad faith or negligence, or to the
         reckless disregard of its duties under this Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) howsoever
         arising from or in connection with the performance by the Adviser of
         its duties under this Agreement; provided, however, that the Adviser
         shall not be required to indemnify  or otherwise hold the Sub-Adviser
         harmless under this Section





                                       4
<PAGE>   5

         7 where the claim against, or the loss, liability or damage
         experienced by the Sub-Adviser, is caused by or is otherwise directly
         related to the Sub-Adviser's own willful misfeasance, bad faith or
         negligence, or to the reckless disregard of its duties under this
         Agreement.

8.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio;
         provided, however, that at any time the Adviser shall have obtained
         exemptive relief from the SEC permitting it to engage a Sub-Adviser
         without first obtaining approval of the Agreement from a majority of
         the outstanding voting securities of the Portfolio(s) involved, the
         Agreement shall become effective upon its approval by the Trust's
         Board of Trustees.  Any Sub-Adviser so selected and approved shall be
         without the protection accorded by shareholder approval of an
         investment adviser's receipt of compensation under Section 36(b) of
         the 1940 Act.

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of such
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the other party, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         other party.  This Agreement shall terminate automatically and
         immediately in the event of its assignment, or in the event of a
         termination of the Adviser's agreement with the Trust.  As used in
         this Section 8, the terms "assignment" and "vote of a majority of the
         outstanding voting securities" shall have the respective meanings set
         forth in the 1940 Act and the rules and regulations thereunder,
         subject to such exceptions as may be granted by the Commission under
         the 1940 Act.

9.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

10.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

11.      NOTICE.  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:





                                       5
<PAGE>   6


         To the Adviser at:            SEI Financial Management Corporation
                                       680 East Swedesford Road
                                       Wayne, PA 19087
                                       Attention:  Legal Department
                                       
         To the Sub-Adviser at:        IDS Advisory Group Inc.
                                       IDS Tower 10
                                       Minneapolis, MN 55440
                                       Attention: President


12.      MISCELLANEOUS.   The Trust may be identified by name in the
         Sub-Adviser's current client list. Such list may be used with third
         parties. The Sub-Adviser is an affirmative action company.

13.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.



         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation        IDS Advisory Group Inc.

By:                                         By:
   --------------------------------            -------------------------------

Title:                                      Title:
      -----------------------------               ----------------------------




                                       6
<PAGE>   7

                                  SCHEDULE A
                                    TO THE
                            SUB-ADVISORY AGREEMENT
                                   BETWEEN
                     SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                           IDS ADVISORY GROUP INC.


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Large Cap Portfolio                          .25%





                                      7

<PAGE>   1
                                                                 EXHIBIT (k)
                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of ___________, 1996, by and among SEI
Financial Management Corporation, (the "Adviser") and LSV Asset Management (the
"Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ___, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Large Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage the
         investment operations of the Portfolio and the composition of the
         Portfolio, including the purchase, retention and disposition of
         securities and other assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall provide supervision of the Portfolio's
         investments and determine from time to time  what investments and
         securities will be purchased, retained or sold by the Portfolio, and
         what portion of the assets will be invested or held uninvested in
         cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the securities to be purchased or sold
         by the Portfolio and will place orders with or through such persons,
         brokers or dealers to carry out the policy with respect to brokerage
         set forth in the Portfolio's Registration Statement (as defined
         herein) and Prospectus or as the Board of Trustees or the Adviser may
         direct from time to time, in conformity with federal securities laws.
         In executing Portfolio transactions and selecting brokers or dealers,
         the Sub-Adviser will use its best efforts to seek on behalf of the
         Portfolio the best overall terms available.  In assessing the best
         overall terms available for any transaction, the Sub-Adviser shall
         consider all factors that it deems relevant, including the breadth of
         the market in the security, the price of the security, the financial
         condition and execution capability of the broker or dealer, and the
         reasonableness of the commission, if any, both for the specific
         transaction and on a continuing basis.  In evaluating the best overall
         terms available, and in selecting the broker-dealer to execute a
         particular transaction the Sub-Adviser may also consider the brokerage
         and research services (as those terms are defined in Section 28(e) of
         the Securities Exchange Act of 1934) provided to the Portfolio and/or
         other accounts over which the Sub-Adviser or an affiliate of the
         Sub-Adviser may exercise investment discretion.  The Sub-Adviser is
         authorized, subject to the prior approval of the Trust's Board of
         Trustees, to pay to a broker or dealer who provides such brokerage and
         research services a commission for executing a portfolio transaction
         for any of the Portfolios which is in excess of the amount of 
         commission another broker or dealer would have charged for effecting 
         that transaction if, but only if, the Sub-Adviser determines in good 
         faith that such commission was reasonable in relation to the value of 
         the brokerage and research services provided by such broker or dealer 
         - - viewed in terms of that particular transaction or terms of the 
         overall responsibilities of the Sub-Adviser to the Portfolio.  In 
         addition, the Sub-Adviser if authorized to allocate purchase and sale 
         orders for portfolio securities to brokers or dealers (including 
         brokers and dealers that are affiliated with the Sub-Adviser or the 
         Trust's principal underwriter) to take into account the sale of shares
         of the Trust if the Sub-Advisor believes that the quality of the 
         transaction and the commission are comparable to what they would be
         with other qualified firms.  In no instance, however, will any 
         Portfolio's securities be purchased from or sold to the Sub-Adviser, 
         the Trust's principal underwriter, or any affiliated person of either 
         the Trust, the Sub-Adviser or the principal underwriter, acting as 
         principal in the transaction, except to the extent permitted by the 
         Securities and Exchange Commission and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         the Portfolio's portfolio transactions required by subparagraphs
         (b)(5), (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1
         under the 1940 Act and shall render to the Adviser or Board of
         Trustees such periodic and special reports as the Adviser or Board of
         Trustees may reasonably request.

         The Sub-Adviser shall keep the Portfolio's books and records required
         to be maintained by the Sub-Adviser of this Agreement and shall timely
         furnish to the Adviser all information relating to the Sub-Adviser's
         services under this Agreement needed by the Adviser to keep the other
         books and records of the Portfolio required by Rule 31a-1 under the
         1940 Act.  The Sub-Adviser





                                       
<PAGE>   2

         shall also furnish to the Adviser any other information that is
         required to be filled by the Adviser or the Trust with the Securities
         and Exchange Commission ("SEC") or sent to shareholders under the 1940
         Act (including the rules adopted thereunder) or any exemptive or other
         relief that the Adviser or the Trust obtains from the SEC.  The
         Sub-Adviser agrees that all records that it maintains on behalf of the
         Portfolio are property of the Portfolio and the Sub-Adviser will
         surrender promptly to the Portfolio any of such records upon the
         Portfolio's request; provided, however, that the Sub-Adviser may
         retain a copy of such records.  In addition, for the duration of this
         Agreement, the  Sub-Adviser shall preserve for the periods prescribed
         by Rule  31a-2 under the 1940 Act any such records as are required to
         be maintained by it pursuant to this Agreement, and shall transfer
         said records to any successor Sub-Adviser upon the termination of his
         Agreement (or, if there is no successor Sub-Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub- Adviser's ability to
         fulfill its commitment under this Agreement.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that nothing herein shall be construed to relieve
         the Sub-Adviser of responsibility for compliance with the Portfolio's
         investment objectives, policies, and restrictions, as provided in
         Section 1 hereunder.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of
         investments under management and will be paid to the Sub-Adviser
         monthly.  The Sub-Adviser may, in its discretion and from time to
         time, waive a portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with performance of its obligations under this
         Agreement, except a loss resulting from a breach of fiduciary duty
         with respect to the receipt of compensation for services (in which
         case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all prospectuses,
         proxy statements, reports to stockholders, sales literature or other
         materials prepared for distribution to stockholders of the Portfolios,
         the Trust or the public that refer to the Sub-Adviser or its clients
         in any way prior to use thereof and not to use material if the
         Sub-Adviser reasonably objects in writing within five business days
         (or such other period as may be mutually agreed) after receipt
         thereof.  The Sub-Adviser's right to object to such materials is
         limited to the portions of such materials that expressly relate to the
         Sub-Adviser, its services and its clients.  The Adviser agrees to use
         its reasonable best efforts to ensure that materials prepared by its
         employees or agents or its affiliates that refer to the Sub-Adviser or
         its clients in any way are consistent with those materials previously
         approved by the Sub-Adviser as referenced in the first sentence of
         this paragraph.  Sales literature may be furnished to the Sub-Adviser
         by first class or overnight mail, facsimile transmission equipment or
         hand delivery.

7.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses,





                                       
<PAGE>   3

         liabilities or damages (including reasonable attorney's fees and other
         related expenses) howsoever arising from or in connection with this
         Agreement or the performance by the Sub-Adviser of its duties
         hereunder; provided, however, that the Sub-Adviser shall not be
         required to indemnify or otherwise hold the Adviser harmless under
         this Section 7 where the claim against, or the loss, liability or
         damage experienced by the Adviser, is caused by or is otherwise
         directly related to the Adviser's own willful misfeasance, bad faith
         or negligence, or to the reckless disregard of its duties under this
         Agreement.

8.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio;
         provided, however, that at any time the Adviser shall have obtained
         exemptive relief from the SEC permitting it to engage a Sub-Adviser
         without first obtaining approval of the Agreement from a majority of
         the outstanding voting securities of the Portfolio(s) involved, the
         Agreement shall become effective upon its approval by the Trust's
         Board of Trustees.  Any Sub-Adviser so selected and approved shall be
         without the protection accorded by shareholder approval of an
         investment adviser's receipt of compensation under Section 36(b) of
         the 1940 Act.

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of such
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the other party, or (c) by the Sub- Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         other party.  This Agreement shall terminate automatically and
         immediately in the event of its assignment, or in the event of a
         termination of the Adviser's agreement with the Trust.  As used in
         this Section 8, the terms "assignment" and "vote of a majority of the
         outstanding voting securities" shall have the respective meanings set
         forth in the 1940 Act and the rules and regulations thereunder,
         subject to such exceptions as may be granted by the Commission under
         the 1940 Act.

9.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

10.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

11.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:          SEI Financial Management Corporation
                                     680 East Swedesford Road
                                     Wayne, PA 19087
                                     Attention:  Legal Department
                                     
         To the Sub-Adviser at:      LSV Asset Management
                                     181 W. Madison Avenue
                                     Chicago, IL 60602
                                     Attention: President



12.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

Where the effect of a requirement of the 1940 Act reflected in any provision of
this Agreement is altered by a rule, regulation or order of the Commission,
whether of special or general application, such provision shall be deemed to
incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation            LSV Asset Management
                                                  By SEI Funds, Inc.,
                                                  a general partner
                                                  
By:                                             By:
    ----------------------------------            ---------------------------- 

Title:                                          Title:
       -------------------------------                ------------------------
<PAGE>   4

                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
                              LSV ASSET MANAGEMENT


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Large Cap Portfolio                        .20%





                                                            

<PAGE>   1

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of _________________, 1996, by and among
SEI Financial Management Corporation, (the "Adviser") and Mellon Equity
Associates (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June _____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Large Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage the
         investment operations of the Portfolio and the composition of the
         Portfolio, including the purchase, retention and disposition of
         securities and other assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall provide supervision of the Portfolio's
         investments and determine from time to time  what investments and
         securities will be purchased, retained or sold by the Portfolio, and
         what portion of the assets will be invested or held uninvested in
         cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the securities to be purchased or sold
         by the Portfolio and will place orders with or through such persons,
         brokers or dealers to carry out the policy with respect to brokerage
         set forth in the Portfolio's Registration Statement  and Prospectus or
         as the Board of Trustees or the Adviser may direct from time to time,
         in conformity with federal securities laws.  In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will
         use its best efforts to seek on behalf of the Portfolio the best
         overall terms available.  In assessing the best overall terms
         available for any transaction, the Sub-Adviser shall consider all
         factors that it deems relevant, which may include the breadth of the
         market in the security, the price of the security, the financial
         condition and execution capability of the broker or dealer, and the
         reasonableness of the commission, if any, both for the specific
         transaction and on a continuing basis.  In evaluating the best overall
         terms available, and in selecting the broker-dealer to execute
<PAGE>   2

         a particular transaction the Sub-Adviser may also consider the
         brokerage and research services (as those terms are defined in Section
         28(e) of the Securities Exchange Act of 1934) provided to the
         Portfolio and/or other accounts over which the Sub-Adviser or an
         affiliate of the Sub-Adviser may exercise investment discretion.  The
         Sub-Adviser is authorized, subject to the prior approval of the
         Trust's Board of Trustees, to pay to a broker or dealer who provides
         such brokerage and research services a commission for executing a
         portfolio transaction for any of the Portfolios which is in excess of
         the amount of commission another broker or dealer would have charged
         for effecting that transaction if, but only if, the Sub-Adviser
         determines in good faith that such commission was reasonable in
         relation to the value of the brokerage and research services provided
         by such broker or dealer - - viewed in terms of that particular
         transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser is
         authorized to allocate purchase and sale orders for portfolio
         securities to brokers or dealers (including brokers and dealers that
         are affiliated with the Sub-Adviser or the Trust's principal
         underwriter) to take into account the sale of shares of the Trust if
         the Sub-Adviser believes that the quality of the transaction and the
         commission are comparable to what they would be with other qualified
         firms.  In no instance, however, will the  Portfolio's securities be
         purchased from or sold to the Sub-Adviser, the Trust's principal
         underwriter, or any affiliated person of either the Trust, the
         Sub-Adviser or the principal underwriter, acting as principal in the
         transaction, except to the extent permitted by the Securities and
         Exchange Commission and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         the Portfolio's portfolio transactions required by subparagraphs
         (b)(5), (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1
         under the 1940 Act and shall render to the Adviser or Board of
         Trustees such periodic and special reports as the Adviser or Board of
         Trustees may reasonably request.

         The Sub-Adviser shall keep the Portfolio's books and records required
         to be maintained by the Sub-Adviser of this Agreement and shall timely
         furnish to the Adviser all information relating to the Sub-Adviser's
         services under this Agreement needed by the Adviser to keep the other
         books and records of the Portfolio required by Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall also furnish to the Adviser any other
         information that is required to be filed by the Adviser or the Trust
         with the Securities and Exchange Commission ("SEC") or sent to
         shareholders under the 1940 Act (including the rules adopted
         thereunder) or any exemptive or other relief that the Adviser or the
         Trust obtains from the SEC.  The Sub-Adviser agrees that all records
         that it maintains on behalf of the Portfolio are property of the
         Portfolio and the Sub-Adviser will surrender promptly to the Portfolio
         any of such records upon the Portfolio's request; provided, however,
         that the Sub-Adviser may retain a copy of such records.  In addition,
         for the duration of this Agreement, the  Sub-Adviser shall preserve
         for the periods prescribed by Rule 31a-2 under the 1940 Act any such
         records as are required to be maintained by it pursuant to this
         Agreement, and shall transfer said records to any successor
         Sub-Adviser upon the termination of this Agreement (or, if there is no
         successor Sub-Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to



                                      2

<PAGE>   3

         impair the Sub-Adviser's ability to fulfill its commitment under this
         Agreement.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that nothing herein shall be construed to relieve
         the Sub-Adviser of responsibility for compliance with the Portfolio's
         investment objectives, policies, and restrictions, as provided in
         Section 1 hereunder.  The Adviser hereby covenants to promptly provide
         the Sub-Adviser with copies of any amendment or supplement to the
         Portfolio's Registration Statement as well as all applicable trading
         guidelines and procedures established for the Portfolio.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

(d)      The Adviser hereby covenants to promptly furnish the
         Sub-Adviser with copies of any amendments or supplements to such
         documents.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in Schedule A which
         is attached hereto and made part of this Agreement.  The fee will be
         calculated based on the average monthly market value of investments
         under management and will be paid to the Sub-Adviser monthly.  The
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with performance of its obligations under this
         Agreement, except a loss resulting from a breach of fiduciary duty
         with respect to the receipt of compensation for services (in which
         case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all prospectuses,
         proxy statements, reports to stockholders, sales literature or





                                      3
<PAGE>   4
         other materials prepared for distribution to stockholders of the
         Portfolios, the Trust or the public that refer to the Sub-Adviser or
         its clients in any way prior to use thereof and not to use material if
         the Sub-Adviser reasonably objects in writing within five business
         days (or such other period as may be mutually agreed) after receipt
         thereof.  The Sub-Adviser's right to object to such materials is
         limited to the portions of such materials that expressly relate to the
         Sub-Adviser, its services and its clients.  The Adviser agrees to use
         its reasonable best efforts to ensure that materials prepared by its
         employees or agents or its affiliates that refer to the Sub-Adviser or
         its clients in any way are consistent with those materials previously
         approved by the Sub-Adviser as referenced in the first sentence of
         this paragraph.  Sales literature may be furnished to the Sub-Adviser
         by first class or overnight mail, facsimile transmission equipment or
         hand delivery.

7.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         by the Sub-Adviser of its duties under this Agreement; provided,
         however, that the Sub-Adviser shall not be required to indemnify or
         otherwise hold the Adviser harmless under this Section 7 where the
         claim against, or the loss, liability or damage experienced by the
         Adviser, is caused by or is otherwise directly related to the
         Adviser's own willful misfeasance, bad faith or negligence, or to the
         reckless disregard of its duties under this Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) howsoever
         arising from or in connection with the performance by the Adviser of
         its duties under this Agreement; provided, however, that the Adviser
         shall not be required to indemnify or otherwise hold the Sub-Adviser
         harmless under this Section 7 where the claim against, or the loss,
         liability or damage experienced by the Sub-Adviser, is caused by or is
         otherwise directly related to the Sub-Adviser's own willful
         misfeasance, bad faith or negligence, or to the reckless disregard of
         its duties under this Agreement.

8.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio;
         provided, however, that at any time the Adviser shall have obtained
         exemptive relief from the SEC permitting it to engage a Sub-Adviser
         without first obtaining approval of the Agreement from a majority of
         the outstanding voting securities of the Portfolio involved, the
         Agreement shall become effective upon its approval by the Trust's
         Board of Trustees.  Any Sub-Adviser so selected and approved shall be
         without the protection accorded by shareholder approval of an
         investment adviser's receipt of compensation under Section 36(b) of
         the 1940 Act.

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of such
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the other party, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         other party.  This Agreement shall terminate automatically and
         immediately in the event of its assignment, or in the event of a
         termination of the Adviser's agreement with the Trust.  As used in
         this Section 8, the terms "assignment" and "vote of a majority of the
         outstanding voting securities" shall have the respective meanings set
         forth in the 1940 Act and the rules and regulations thereunder,
         subject to




                                      4
<PAGE>   5

         such exceptions as may be granted by the Commission under the 1940
         Act.

9.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

10.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

11.      NOTICE.  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:            SEI Financial Management Corporation
                                       680 East Swedesford Road
                                       Wayne, PA 19087
                                       Attention:  Legal Department
                                       
         To the Sub-Adviser at:        Mellon Equity Associates
                                       500 Grant Street, Suite 3700
                                       Pittsburgh, Pa 15258
                                       Attention: President


12.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

Where the effect of a requirement of the 1940 Act reflected in any provision of
this Agreement is altered by a rule, regulation or order of the Commission,
whether of special or general application, such provision shall be deemed to
incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation              Mellon Equity Associates

By:                                               By:
   ---------------------------------                 --------------------------

Title:                                            Title:
      ------------------------------                    -----------------------



                                      5
<PAGE>   6

                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
                            MELLON EQUITY ASSOCIATES


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Large Cap Portfolio                          .20%




                                      6

<PAGE>   1
                                                                   Exhibit 5(m)



                        INVESTMENT SUB-ADVISORY AGREEMENT
                       SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of ______, 1996, between SEI Financial
Management Corporation, (the "Adviser") and MERUS-UCA Capital Management, a
division of the Union Bank of California (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ___, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Large Cap Portfolio (the
"Portfolio"), each a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to retain
the Sub-Adviser to provide investment advisory services to the Adviser in
connection with the management of the Portfolio, and the Sub-Adviser is willing
to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER. Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of the
         securities and other assets of the Portfolio entrusted to it hereunder
         (the "Assets"), including the purchase, retention and disposition of
         the Assets, in accordance with the Portfolio's investment objectives,
         policies and restrictions as stated in the Portfolio's prospectus and
         statement of additional information, as currently in effect and as
         amended or supplemented from time to time (referred to collectively as
         the "Prospectus"), and subject to the following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets will
         be purchased, retained or sold by the Portfolio, and what portion of
         the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of Trustees
         of the Trust and will conform to and comply with the requirements of
         the 1940 Act, the Internal Revenue Code of 1986, and all other
         applicable federal and state laws and regulations, as each is amended
         from time to time.

                                       1
<PAGE>   2
(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as provided in subparagraph (a) and will place orders
         with or through such persons, brokers or dealers to carry out the
         policy with respect to brokerage set forth in the Portfolio's
         Registration Statement (as defined herein) and Prospectus or as the
         Board of Trustees or the Adviser may direct from time to time, in
         conformity with federal securities laws. In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will use
         its best efforts to seek on behalf of the Portfolio the best overall
         terms available. In assessing the best overall terms available for any
         transaction, the Sub-Adviser shall consider all factors that it deems
         relevant, including the breadth of the market in the security, the
         price of the security, the financial condition and execution capability
         of the broker or dealer, and the reasonableness of the commission, if
         any, both for the specific transaction and on a continuing basis. In
         evaluating the best overall terms available, and in selecting the
         broker-dealer to execute a particular transaction, the Sub-Adviser may
         also consider the brokerage and research services provided (as those
         terms are defined in Section 28(e) of the Securities Exchange Act of
         1934). Consistent with any guidelines established by the Board of
         Trustees of the Trust, the Sub-Adviser is authorized to pay to a broker
         or dealer who provides such brokerage and research services a
         commission for executing a portfolio transaction for the Portfolio
         which is in excess of the amount of commission another broker or dealer
         would have charged for effecting that transaction if, but only if, the
         Sub-Adviser determines in good faith that such commission was
         reasonable in relation to the value of the brokerage and research
         services provided by such broker or dealer - - viewed in terms of that
         particular transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio. In addition, the Sub-Adviser if
         authorized to allocate purchase and sale orders for securities to
         brokers or dealers (including brokers and dealers that are affiliated
         with the Adviser, Sub-Adviser or the Trust's principal underwriter) to
         take into account the sale of shares of the Trust if the Sub-Adviser
         believes that the quality of the transaction and the commission are
         comparable to what they would be with other qualified firms. In no
         instance, however, will the Portfolio's Assets be purchased from or
         sold to the Adviser, Sub-Adviser, the Trust's principal underwriter, or
         any affiliated person of either the Trust, Adviser, the Sub-Adviser or
         the principal underwriter, acting as principal in the transaction,
         except to the extent permitted by the Securities and Exchange
         Commission ("SEC") and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act. The Sub-Adviser shall provide to the Adviser or the Board of
         Trustees such periodic and special reports, balance sheets or financial
         information, and such other information with regard to its affairs as
         the Adviser or Board of Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the Assets
         required to be maintained by the Sub-Adviser under this Agreement and
         shall timely furnish to the Adviser all information relating to the
         Sub-Adviser's services under this

                                        2
<PAGE>   3
         Agreement needed by the Adviser to keep the other books and records of
         the Portfolio required by Rule 31a-1 under the 1940 Act. The
         Sub-Adviser shall also furnish to the Adviser any other information
         relating to the Assets that is required to be filed by the Adviser or
         the Trust with the SEC) or sent to shareholders under the 1940 Act
         (including the rules adopted thereunder) or any exemptive or other
         relief that the Adviser or the Trust obtains from the SEC. The
         Sub-Adviser agrees that all records that it maintains on behalf of the
         Portfolio are property of the Portfolio and the Sub-Adviser will
         surrender promptly to the Portfolio any of such records upon the
         Portfolio's request; provided, however, that the Sub-Adviser may retain
         a copy of such records. In addition, for the duration of this
         Agreement, the Sub-Adviser shall preserve for the periods prescribed by
         Rule 31a-2 under the 1940 Act any such records as are required to be
         maintained by it pursuant to this Agreement, and shall transfer said
         records to any successor sub-adviser upon the termination of this
         Agreement (or, if there is no successor sub-adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser shall
         be free to render similar services to others, as long as such services
         do not impair the services rendered to the Adviser or the Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to fulfill
         its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio. The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may be
         furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER. The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement; provided,
         however, that in connection with its management of the Assets, nothing
         herein shall be construed to relieve the Sub-Adviser of responsibility
         for compliance with the Trust's Declaration of Trust (as defined
         herein), the Prospectus, the instructions and directions of the Board
         of Trustees of the Trust, the requirements of the 1940 Act, the
         Internal Revenue Code of 1986, and all other

                                        3
<PAGE>   4
         applicable federal and state laws and regulations, as each is amended
         from time to time.

3.       DELIVERY OF DOCUMENTS. The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such Agreement
         and Declaration of Trust, as in effect on the date of this Agreement
         and as amended from time to time, herein called the "Declaration of
         Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER. For the services to be provided by the
         Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement. The fee will
         be calculated based on the average monthly market value of the Assets
         under the Sub-Adviser's management and will be paid to the Sub-Adviser
         monthly. Except as may otherwise be prohibited by law or regulation
         (including any then current SEC staff interpretation), the Sub-Adviser
         may, in its discretion and from time to time, waive a portion of its
         fee.

5.       INDEMNIFICATION. The Sub-Adviser shall indemnify and hold harmless the
         Adviser from and against any and all claims, losses, liabilities or
         damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; provided,
         however, that the Sub-Adviser's obligation under this Section 5 shall
         be reduced to the extent that the claim against, or the loss, liability
         or damage experienced by the Adviser, is caused by or is otherwise
         directly related to the Adviser's own willful misfeasance, bad faith or
         negligence, or to the reckless disregard of its duties under this
         Agreement.

6.       DURATION AND TERMINATION. This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio. This
         Agreement shall continue in effect for a period of more than two years
         from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio, (b) by the Adviser at any time, without the payment

                                        4
<PAGE>   5
   
         of any penalty, on not more than 60 days' nor less than 30 days'
         written notice to the Sub-Adviser, or (c) by the Sub-Adviser at any
         time, without the payment of any penalty, on 90 days' written notice to
         the Adviser. This Agreement shall terminate automatically and
         immediately in the event of its assignment, or in the event of a
         termination of the Adviser's agreement with the Trust. As used in this
         Section 6, the terms "assignment" and "vote of a majority of the
         outstanding voting securities" shall have the respective meanings set
         forth in the 1940 Act and the rules and regulations thereunder, subject
         to such exceptions as may be granted by the SEC under the 1940 Act.
    
7.       GOVERNING LAW. This Agreement shall be governed by the internal laws of
         the Commonwealth of Massachusetts, without regard to conflict of law
         principles; provided, however, that nothing herein shall be construed
         as being inconsistent with the 1940 Act.

8.       SEVERABILITY. Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby. This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

9.       NOTICE: Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

To the Adviser at:                          SEI Financial Management
                                            Corporation
                                            680 East Swedesford Road
                                            Wayne, PA 19087
                                            Attention:  Legal Department

To the Sub-Adviser at:                      Union Bank of California
                                            350 California Street
                                            San Francisco, California 94104
                                            Attention:  President


10.      ENTIRE AGREEMENT. This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter. This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust is on file with the Secretary of
State of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the

                                        5
<PAGE>   6
Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first written
above.

SEI Financial Management Corporation   MERUS-UCA Capital Management, a
                                       division of the Union Bank of California
By:                                    By:

- ------------------------------------   ----------------------------------------

Name:                                  Name:

- ------------------------------------   ----------------------------------------

Title:                                 Title:

- ------------------------------------   ----------------------------------------

                                        6
<PAGE>   7
                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                     BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                       AND
    MERUS-UCA CAPITAL MANAGEMENT, A DIVISION OF THE UNION BANK OF CALIFORNIA


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Large Cap Portfolio                    .20%

                                        7


<PAGE>   1
                                                                  EXHIBIT 5(n)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of _____________, 1996, by and among SEI
Financial Management Corporation, (the "Adviser") and Montgomery Asset
Management, L. P. (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Emerging Markets Equity
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision and direction by
         the Adviser and the Trust's Board of Trustees, the Sub-Adviser shall
         manage on a discretionary basis the investment operation of all of the
         securities and other assets of the Portfolio entrusted to it hereunder
         (the "Assets") and the composition of the Portfolio, including the
         purchase, retention and disposition of the Assets, in accordance with
         the Portfolio's investment objectives, policies and restrictions as
         stated in the Portfolio's prospectus and statement of additional
         information, as currently in effect and as amended or supplemented
         from time to time by written notice to the Sub-Adviser (referred to
         collectively as the "Prospectus"), and subject to the following:

(a)      The Sub-Adviser shall provide supervision of the Assets and determine
         from time to time what Assets will be purchased, retained or sold by
         the Portfolio, and what portion of the Assets will be invested or held
         uninvested in cash.  In furtherance of the forgoing, the Adviser
         hereby designates and appoints the Sub-Adviser as agent and
         attorney-in-fact of the Trust, with authority and without further
         approval of the Adviser (except as expressly provided for herein or as
         may be required by law) to make and execute, in the name and on behalf
         of the Portfolio, all agreements, instruments and other documents and
         to take all such other action which the Sub-Adviser considers
         necessary or advisable to carry out its duties hereunder.  By  way of
         example and not by way of limitation, in connection with any purchase
         for the Portfolio of securities that are not registered under the
         Securities Act of 1933, as amended (the "Securities Act"), the
         Sub-Adviser shall have authority, among other things to: (i) commit to
         purchase such securities for the Portfolio on the terms and conditions
         under which such securities are offered; (ii) execute such agreements,
         instruments and documents (including, without limitation, purchase
         agreements and subscription documents), and make such commitments, as
         may be required or otherwise in connection with the purchase and sale
         or such securities; (iii) represent that the Portfolio is an
         "accredited investor" under the Securities Act;and (iv) commit that
         such securities will not be offered or sold by the Portfolio except in
         compliance with the registration requirements of the Securities Act or
         an exemption therefrom.  This power-of-attorney is a continuing
         power-of-attorney and shall remain in full force and effect until
         revoked by the Adviser in writing, but any such revocation shall not
         affect any transaction initiated prior to receipt by the Sub-Adviser
         or
<PAGE>   2

         such notice.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio and will place orders with or through such persons,
         brokers or dealers to carry out the policy with respect to brokerage
         set forth in the Portfolio's Prospectus or as the Board of Trustees or
         the Adviser may direct from time to time, in conformity with federal
         securities laws.  In executing Portfolio transactions and selecting
         brokers or dealers, the Sub-Adviser will use its best efforts to seek
         on behalf of the Portfolio the best overall terms available.  In
         assessing the best overall terms available for any transaction, the
         Sub-Adviser shall consider all factors that it deems relevant,
         including the breadth of the market in the security, the price of the
         security, the financial condition and execution capability of the
         broker or dealer, and the reasonableness of the commission, if any,
         both for the specific transaction and on a continuing basis.  In
         evaluating the best overall terms available, and in selecting the
         broker-dealer to execute a particular transaction the Sub-Adviser may
         also consider the brokerage and research services (as those terms are
         defined in Section 28(e) of the Securities Exchange Act of 1934)
         provided to the Portfolio and/or other accounts over which the
         Sub-Adviser or an affiliate of the Sub-Adviser may exercise investment
         discretion.  The Sub-Adviser is authorized, subject to the prior
         approval of the Trust's Board of Trustees, to pay to a broker or
         dealer who provides such brokerage and research services a commission
         for executing a portfolio transaction for the Portfolio which is in
         excess of the amount of commission another broker or dealer would have
         charged for effecting that transaction if, but only if, the
         Sub-Adviser determines in good faith that such commission was
         reasonable in relation to the value of the brokerage and research
         services provided by such broker or dealer - - viewed in terms of that
         particular transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser is
         authorized to allocate purchase and sale orders for portfolio
         securities to brokers or dealers (including brokers and dealers that
         are affiliated with the Adviser, the Sub-Adviser or the Trust's
         principal underwriter) to take into account the sale of shares of the
         Trust if the Sub-Adviser believes that the quality of the transaction
         and the commission are comparable to what they would be with other
         qualified firms.  In no instance, however, will the Portfolio's Assets
         be purchased from or sold to the Adviser, the Sub-Adviser, the Trust's
         principal underwriter, or any affiliated person of either the Trust,
         the Adviser, the Sub-Adviser or the principal underwriter, acting as
         principal in the transaction, except to the extent permitted by the
         Securities and Exchange Commission and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act and shall render to the Adviser or Board of Trustees such
         periodic and special reports as the Adviser or Board of Trustees may
         reasonably request.


         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         requested by the Adviser relating to the Sub-Adviser's services under
         this Agreement needed by the Adviser to keep the other books and
         records of the Portfolio required by Rule 31a-1 under the




                                      2
<PAGE>   3

         1940 Act.  Upon request, the Sub-Adviser shall also furnish to the
         Adviser any other information relating to the Assets that is required
         to be filed by the Adviser or the Trust with the Securities and
         Exchange Commission ("SEC") or sent to shareholders under the 1940 Act
         (including the rules adopted thereunder) or any exemptive or other
         relief that the Adviser or the Trust obtains from the SEC.  The
         Sub-Adviser agrees that all records that it maintains on behalf of the
         Portfolio are property of the Portfolio and the Sub-Adviser will
         surrender promptly to the Portfolio any of such records upon the
         Portfolio's request; provided, however, that the Sub-Adviser may
         retain a copy of such records.  In addition, for the duration of this
         Agreement, the Sub-Adviser shall preserve for the periods prescribed
         by Rule 31a-2 under the 1940 Act any such records as are required to
         be maintained by it pursuant to this Agreement, and shall transfer
         said records to any successor Sub-Adviser upon the termination of his
         Agreement (or, if there is no successor Sub-Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

                 The Sub-Adviser shall not be obligated to purchase or sell for
         the Portfolio securities which the Sub-Adviser may purchase or sell
         or recommend for purchase or sale for itself or for the portfolios of
         other clients.  Moreover, the Adviser acknowledges that circumstances
         may arise under which the Sub-Adviser determines that while it would
         be both desirable and suitable that a particular security be purchased
         or sold for the account of more than one of the Sub-Adviser's
         portfolios, there is a limited supply or demand for that security.
         Under such circumstances, the Adviser acknowledges that, while the
         Sub-Adviser will seek to allocate the opportunity to purchase or sell
         that security among those portfolios on an equitable basis (including
         as between portfolios of the Sub-Adviser's nondiscretionary clients,
         to whom the Sub-Adviser makes recommendations, and portfolios of its
         discretionary clients, such as the Portfolio), the Sub-Adviser shall
         not be required to assure equality of treatment among all of its
         clients (including that opportunity to purchase or sell that
         security will be proportionately allocated among those portfolios
         according to any particular or predetermined standards or criteria).

                 Where, because of the prevailing market conditions, it is not
         possible to receive the same price or time of execution for all of the
         securities or other investments purchased or sold for the Portfolio,
         transactions for the Portfolio may be reported with the average prices
         of those transactions.  In certain instances, the Sub-Adviser, in its
         discretion, may place a large order to purchase or sell a particular
         security or other investment for the Portfolio and the accounts of one
         or more other clients.  Because of the prevailing market conditions,
         it is frequently not possible to receive the same price or time of
         execution for all of the securities or other investments purchased or
         sold.  When this occurs, the Sub-Adviser will average the various
         prices and charge or credit the Portfolio with the average price.  In
         such instances, the confirmation for such transaction sent to the
         Adviser will disclose the average price.  Upon request, the Sub-
         Adviser will make the underlying records reflecting the actual
         transaction available for the Adviser's inspection.

                 The Portfolio may include securities of companies for which
         Montgomery Securities, an affiliate of the Sub-Adviser, acts as
         investment banker or financial adviser or with which it has




                                      3
<PAGE>   4

         other confidential relationships or in which it maintains a position
         or makes a market or otherwise has an interest.  The Adviser
         appreciates that, for good commercial and legal reasons, nonpublic
         information (a) which becomes available to Montgomery Securities
         through its relationships or for any other reason cannot be passed on
         to the Sub-Adviser or the Adviser, or used for the benefit of the
         Portfolio; and (b) which becomes available to the Sub-Adviser for any
         reason cannot be passed onto the Adviser or used for the benefit of
         the Portfolio.  The Adviser understands that Montgomery Securities, an
         affiliate of the Sub-Adviser, may provide investment banking,
         investment advisory and brokerage services to persons other than the
         Adviser.  These activities may result in a conflict between the
         interests of Montgomery Securities and the Adviser which, in certain
         circumstances, may restrict the Sub-Adviser from trading or
         recommending the trading in certain securities.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Adviser hereby authorizes the Sub-Adviser to receive and
         confer upon the Sub-Adviser complete discretion to vote proxies
         solicited by or with respect to the issuers of securities in which the
         Assets may be invested from time to time ("Proxies").  The Sub-Adviser
         shall vote all Proxies in a manner which, at the time of any Proxy
         vote is cast, is consistent with the Sub-Adviser's good faith
         judgment.  The Adviser shall promptly deliver or cause to be delivered
         to the Sub-Adviser all Proxies, including any information with respect
         thereto, received by the Adviser or the Trust, or by any agent of the
         Adviser or the Trust, including without limitation, any custodian of
         the Assets.   The Adviser shall hold the Sub-Adviser harmless for
         failure to vote Proxies, which are not received by, or delivered to,
         the Sub-Adviser in sufficient time to permit the Sub-Adviser to vote
         such Proxies in accordance with the Sub-Adviser's good faith judgment.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.





2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that nothing herein shall be construed to relieve
         the Sub-Adviser of responsibility for compliance with the Portfolio's
         investment objectives, policies, and restrictions, as provided in
         Section 1 hereunder, in connection with its management of the Assets.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents, and will provide the Sub-Adviser with any amendments
         thereto prior to or immediately upon effectiveness:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");




                                      4
<PAGE>   5

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, is herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  The Sub-Adviser may, in its discretion and from
         time to time, waive a portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with performance of its obligations under this
         Agreement, except a loss resulting from a breach of fiduciary duty
         with respect to the receipt of compensation for services (in which
         case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all prospectuses,
         proxy statements, reports to stockholders, sales literature or other
         materials prepared for distribution to stockholders of the Portfolios,
         the Trust or the public that refer to the Sub-Adviser or its clients
         in any way prior to use thereof and not to use material if the
         Sub-Adviser reasonably objects in writing within five business days
         (or such other period as may be mutually agreed) after receipt
         thereof.  The Sub-Adviser's right to object to such materials is
         limited to the portions of such materials that expressly relate to the
         Sub-Adviser, its services and its clients.  The Adviser agrees to use
         its reasonable best efforts to ensure that materials prepared by its
         employees or agents or its affiliates that refer to the Sub-Adviser or
         its clients in any way are consistent with those materials previously
         approved by the Sub-Adviser as referenced in the first sentence of
         this paragraph.  Sales literature may be furnished to the Sub-Adviser
         by first class or overnight mail, facsimile transmission equipment or
         hand delivery.

7.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with a breach by the
         Sub-Adviser of its duties and obligations under this Agreement;
         provided, however, that the Sub-Adviser shall not be required to
         indemnify or otherwise hold the Adviser harmless under this Section 7
         where the claim against, or the loss, liability or damage experienced
         by the Adviser is caused by or is otherwise directly related to the
         Adviser's own willful misfeasance, bad faith or negligence, or to the
         reckless disregard of its duties under this Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) howsoever
         arising from or in connection with a breach by the Adviser of its
         duties and obligations under this Agreement; provided, however, that
         the Adviser shall not be required to




                                      5
<PAGE>   6

         indemnify or otherwise hold the Sub-Adviser harmless under this
         Section 7 where the claim against, or the loss, liability or damage
         experienced by the Sub-Adviser is caused by or is otherwise directly
         related to the Sub-Adviser's own willful misfeasance, bad faith or
         negligence, or to the reckless disregard of its duties under this
         Agreement.


8.       CUSTODY.   The custodian of the assets comprising the Emerging Markets
         Equity Portfolio will be State Street Bank and Trust Company (the
         "Custodian").  The Assets will be maintained by the Custodian in a
         subaccount, separately identified from the other assets of the
         Emerging Markets Equity Portfolio and the Trust.  All transactions
         with respect to assets in the Portfolio will be carried out through
         the Custodian or such other custodians of the Portfolio as approved or
         appointed by the Portfolio.

9.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio;
         provided, however, that at any time the Adviser shall have obtained
         exemptive relief from the SEC permitting it to engage a Sub-Adviser
         without first obtaining approval of the Agreement from a majority of
         the outstanding voting securities of the Portfolio(s) involved, the
         Agreement shall become effective upon its approval by the Trust's
         Board of Trustees.  Any Sub-Adviser so selected and approved shall be
         without the protection accorded by shareholder approval of an
         investment adviser's receipt of compensation under Section 36(b) of
         the 1940 Act.

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         Adviser.  This Agreement shall terminate automatically and immediately
         in the event of its assignment, or in the event of a termination of
         the Adviser's agreement with the Trust.  As used in this Section 8,
         the terms "assignment" and "vote of a majority of the outstanding
         voting securities" shall have the respective meanings set forth in the
         1940 Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the Commission under the 1940 Act.

10.      GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

11.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

12.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:




                                      6
<PAGE>   7

         To the Adviser at:             SEI Financial Management Corporation
                                        680 East Swedesford Road
                                        Wayne, PA 19087
                                        Attention:  Legal Department
                                        
         To the Sub-Adviser at:         Montgomery Asset Management, L.P.
                                        600 Montgomery Street
                                        San Francisco, CA 94111
                                        Attention:  Kevin T. Hamilton
         

13.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

14.      INFORMATION.  The Sub-Adviser will notify the Adviser of any change in
         the composition of its partners within a reasonable time after such
         change.

15.      ADVISER INFORMATION.  For the purposes of complying with the laws of
         the State of California, the Adviser hereby consents to the disclosure
         to third parties of (i) the identity of the Portfolio as part of a
         representative list of other clients of the Sub-Adviser, (ii)
         investment results and other data of the Portfolio (other than the
         identity of the Adviser) in connection with providing composite
         investment results of the Sub-Adviser and (iii) investments and
         transactions of the Portfolio (other than the identity of the Adviser)
         in connection with proving composite information of the Sub-Adviser.

         A copy of the Declaration of Trust is on file with the Secretary of
State of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.


         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation       Montgomery Asset Management, L.P.
                                           by Montgomery Asset Management, Inc.,
                                           its General Partner
                                           
By:                                        By:
- -------------------------------------------------------------------------------
Title:                                     Title:
- -------------------------------------------------------------------------------



                                      7
<PAGE>   8

                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
                       MONTGOMERY ASSET MANAGEMENT, L.P.


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:


         Emerging Markets Equity Portfolio         .90% up to $50 million
                                                   .55% over $50 million




                                      8

<PAGE>   1
                                                                  EXHIBIT 5(o)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of _________, 1996, by and among SEI
Financial Management Corporation, (the "Adviser") and Morgan Grenfell
Investment Services Limited (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June _____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the International Equity
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information, as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets
         will be purchased, retained or sold by the Portfolio, and what portion
         of the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio and will place orders with or through such persons,
         brokers or dealers to carry out the policy with respect to brokerage
         set forth in the Portfolio's Registration Statement (as defined
         herein) and Prospectus or as the Board of Trustees or the Adviser may
         direct from time to time, in conformity with federal securities laws.
         In executing Portfolio transactions and selecting brokers or dealers,
         the Sub-Adviser will use its best efforts to seek on behalf of the
         Portfolio the best overall terms available.  In assessing the best
         overall terms available for any transaction, the Sub-Adviser shall
         consider all factors that it deems relevant, including the breadth of
         the market in the security, the price of the security, the financial
         condition and execution capability of the broker or dealer, and the
         reasonableness of the commission, if any, both for the specific
         transaction and on a continuing basis.  In evaluating the best overall
         terms available, and in selecting the broker-dealer to execute a
         particular transaction the Sub-Adviser may also consider the brokerage
         and research services (as those terms are defined in Section 28(e) of
         the Securities Exchange Act of 1934) provided to the Portfolio and/or
         other accounts over which the Sub-Adviser or an affiliate of the
         Sub-Adviser may exercise investment discretion.  The Sub-Adviser is
         authorized, subject to the prior approval of the Trust's Board of
         Trustees, to pay to a broker or dealer who provides such brokerage and
         research services a commission for executing a portfolio transaction
         for the Portfolio which is in excess of the amount of commission
         another broker or dealer would have charged for effecting that
         transaction if, but only if, the Sub-Adviser determines in good faith
         that such commission was reasonable in relation to the value of the
         brokerage and research services provided by such broker or dealer - -
         viewed in terms of that particular transaction or terms of the overall
         responsibilities of the Sub-Adviser to the Portfolio.  In addition,
         the Sub-Adviser if authorized to allocate purchase and sale orders for
         securities to brokers or dealers (including brokers and dealers that
         are affiliated with the Adviser, Sub-Adviser or the Trust's principal
         underwriter) to take into account the sale of shares of the Trust if
         the Sub-Adviser believes that the quality of the transaction and the
         commission are comparable to what they would be with other qualified
         firms.  In no instance, however, will the Portfolio's Assets be
         purchased from or sold to the Adviser, Sub-Adviser, the Trust's
         principal underwriter, or any affiliated person of either the Trust,
         Adviser, the Sub-Adviser or the principal underwriter, acting as
         principal in the transaction, except to the extent permitted by the
         Securities and Exchange Commission and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act and shall render to the Adviser or Board of Trustees such
         periodic and special reports as the Adviser or Board of Trustees may
         reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.  The Sub-Adviser shall also
         furnish to the Adviser any other information relating to the Assets
         that is required to be filled





<PAGE>   2

         by the Adviser or the Trust with the Securities and Exchange
         Commission ("SEC") or sent to shareholders under the 1940 Act
         (including the rules adopted thereunder) or any exemptive or other
         relief that the Adviser or the Trust obtains from the SEC.  The
         Sub-Adviser agrees that all records that it maintains on behalf of the
         Portfolio are property of the Portfolio and the Sub-Adviser will
         surrender promptly to the Portfolio any of such records upon the
         Portfolio's request; provided, however, that the Sub-Adviser may
         retain a copy of such records.  In addition, for the duration of this
         Agreement, the Sub-Adviser shall preserve for the periods prescribed
         by Rule 31a-2 under the 1940 Act any such records as are required to
         be maintained by it pursuant to this Agreement, and shall transfer
         said records to any successor Sub-Adviser upon the termination of this
         Agreement (or, if there is no successor Sub-Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that nothing herein shall be construed to relieve
         the Sub-Adviser of responsibility for compliance with the Portfolio's
         investment objectives, policies, and restrictions, as provided in
         Section 1 hereunder, in connection with its management of the Assets.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any SEC staff current interpretation thereon),
         the Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with performance of its obligations under this
         Agreement, except a loss resulting from a breach of fiduciary duty
         with respect to the receipt of compensation for services (in which
         case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all prospectuses,
         proxy statements, reports to stockholders, sales literature or other
         materials prepared for distribution to stockholders of the Portfolios,
         the Trust or the public that refer to the Sub-Adviser or its clients
         in any way prior to use thereof and not to use material if the
         Sub-Adviser reasonably objects in writing within five business days
         (or such other period as may be mutually agreed) after receipt
         thereof.  The Sub-Adviser's right to object to such materials is
         limited to the portions of such materials that expressly relate to the
         Sub-Adviser, its services and its clients.  The Adviser agrees to use
         its reasonable best





<PAGE>   3

         efforts to ensure that materials prepared by its employees or agents
         or its affiliates that refer to the Sub-Adviser or its clients in any
         way are consistent with those materials previously approved by the
         Sub-Adviser as referenced in the first sentence of this paragraph.
         Sales literature may be furnished to the Sub-Adviser by first class or
         overnight mail, facsimile transmission equipment or hand delivery.

7.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with this Agreement
         or the performance by the Sub-Adviser of its duties hereunder;
         provided, however, that the Sub-Adviser shall not be required to
         indemnify or otherwise hold the Adviser harmless under this Section 7
         where the claim against, or the loss, liability or damage experienced
         by the Adviser, is caused by or is otherwise directly related to the
         Adviser's own willful misfeasance, bad faith or negligence, or to the
         reckless disregard of its duties under this Agreement.

8.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio;
         provided, however, that at any time the Adviser shall have obtained
         exemptive relief from the SEC permitting it to engage a Sub-Adviser
         without first obtaining approval of the Agreement from a majority of
         the outstanding voting securities of the Portfolio(s) involved, the
         Agreement shall become effective upon its approval by the Trust's
         Board of Trustees.  Any Sub-Adviser so selected and approved shall be
         without the protection accorded by shareholder approval of an
         investment adviser's receipt of compensation under Section 36(b) of
         the 1940 Act.

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         Adviser.  This Agreement shall terminate automatically and immediately
         in the event of its assignment, or in the event of a termination of
         the Adviser's agreement with the Trust.  As used in this Section 8,
         the terms "assignment" and "vote of a majority of the outstanding
         voting securities" shall have the respective meanings set forth in the
         1940 Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the Commission under the 1940 Act.

9.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

10.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

11.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:        SEI Financial Management Corporation
                                   680 East Swedesford Road
                                   Wayne, PA 19087
                                   Attention:  Legal Department
                                    
         To the Sub-Adviser at:    Morgan Grenfell Investment Services Limited
                                   20 Finsbury Circus
                                   London EC2M INB England
                                   Attention:  President

12.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as 

<PAGE>   4

of the day and year first written above.



SEI Financial Management Corporation       Morgan Grenfell Investment Services 
                                           Limited
                                           
By:                                        By:                      
     -------------------------------            ------------------------------
                                           
Name:                                      Name:
     -------------------------------             -----------------------------
Title:    Vice President                   Title:
      ------------------------------             -----------------------------


<PAGE>   5

                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
                  MORGAN GRENFELL INVESTMENT SERVICES LIMITED

Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

International Equity Portfolio          .325%






<PAGE>   1


                                                                    EXHIBIT 5(p)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

     AGREEMENT made this _____ day of _____________, 1996, between SEI
Financial Management Corporation, (the "Adviser") and Nicholas-Applegate
Capital Management (the "Sub-Adviser").

     WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

     WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Small Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

     WHEREAS, the Adviser, with the approval of the Trust, desires to retain
the Sub-Adviser to provide investment advisory services to the Adviser in
connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

     NOW, THEREFORE, the parties hereto agree as follows:

1.   DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and the
     Trust's Board of Trustees, the Sub-Adviser shall manage all of the
     securities and other assets of the Portfolio entrusted to it hereunder
     (the "Assets"), including the purchase, retention and disposition of the
     Assets, in accordance with the Portfolio's investment objectives, policies
     and restrictions as stated in the Portfolio's prospectus and statement of
     additional information,  as currently in effect and as amended or
     supplemented from time to time (referred to collectively as the
     "Prospectus"), and subject to the following:

(a)  The Sub-Adviser shall, in consultation with and subject to the direction
     of the Adviser, determine from time to time what Assets will be purchased,
     retained or sold by the Portfolio, and what portion of the Assets will be
     invested or held uninvested in cash.

(b)  In the performance of its duties and obligations under this Agreement, the
     Sub-Adviser shall act in conformity with the Trust's Declaration of Trust
     (as defined herein) and the Prospectus and with the instructions and
     directions of the Adviser and of the Board of Trustees of the Trust and
     will conform to and comply with the requirements of the 1940 Act, the
     Internal Revenue Code of 1986, and all other applicable federal and state
     laws and regulations, as each is amended from time to time.

(c)  The Sub-Adviser shall determine the Assets to be purchased or sold by the
     Portfolio as provided in subparagraph (a) and will place orders with or
     through such persons, brokers or dealers to carry out the policy with
     respect to brokerage set forth in the Portfolio's Registration Statement
     (as defined herein) and Prospectus or as the Board of Trustees or the
     Adviser may direct from time to time, in conformity with federal
     securities laws.  In executing Portfolio transactions and selecting
     brokers or dealers, the Sub-Adviser will use its best efforts to seek on
     behalf of the Portfolio the best overall terms available.  In assessing
     the best overall terms available for any transaction, the Sub-Adviser
     shall consider all factors that it deems relevant, including the breadth
     of the market in the security, the price of the security, the financial
     condition and execution
<PAGE>   2

     capability of the broker or dealer, and the reasonableness of the
     commission, if any, both for the specific transaction and on a continuing
     basis.  In evaluating the best overall terms available, and in selecting
     the broker-dealer to execute a particular transaction, the Sub-Adviser may
     also consider the brokerage and research services provided (as those terms
     are defined in Section 28(e) of the Securities Exchange Act of 1934).
     Consistent with any guidelines established by the Board of Trustees of the
     Trust, the Sub-Adviser is authorized to pay to a broker or dealer who
     provides such brokerage and research services a commission for executing a
     portfolio transaction for the Portfolio which is in excess of the amount
     of commission another broker or dealer would have charged for effecting
     that transaction if, but only if, the Sub-Adviser determines in good faith
     that such commission was reasonable in relation to the value of the
     brokerage and research services provided by such broker or dealer -
      - viewed in terms of that particular transaction or terms of the overall
     responsibilities of the Sub-Adviser to the Portfolio.  In addition, the
     Sub-Adviser is authorized to allocate purchase and sale orders for
     securities to brokers or dealers (including brokers and dealers that are
     affiliated with the Adviser, Sub-Adviser or the Trust's principal
     underwriter) to take into account the sale of shares of the Trust if the
     Sub-Adviser believes that the quality of the transaction and the
     commission are comparable to what they would be with other qualified
     firms.  In no instance, however, will the Portfolio's Assets be purchased
     from or sold to the Adviser, Sub-Adviser, the Trust's principal
     underwriter, or any affiliated person of either the Trust, Adviser, the
     Sub-Adviser or the principal underwriter, acting as principal in the
     transaction, except to the extent permitted by the Securities and Exchange
     Commission and the 1940 Act.

(d)  The Sub-Adviser shall maintain all books and records with respect to
     transactions involving the Assets required by subparagraphs (b)(5), (6),
     (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the 1940
     Act.  The Sub-Adviser shall provide to the Adviser or the Board of
     Trustees such periodic and special reports, balance sheets or financial
     information, and such other information with regard to its affairs as the
     Adviser or Board of Trustees may reasonably request.

     The Sub-Adviser shall keep the books and records relating to the Assets
     required to be maintained by the Sub-Adviser under this Agreement and
     shall timely furnish to the Adviser all information relating to the
     Sub-Adviser's services under this Agreement needed by the Adviser to keep
     the other books and records of the Portfolio required by Rule 31a-1 under
     the 1940 Act.  The Sub-Adviser shall also furnish to the Adviser any other
     information relating to the Assets that is required to be filed by the
     Adviser or the Trust with the Securities and Exchange Commission ("SEC")
     or sent to shareholders under the 1940 Act (including the rules adopted
     thereunder) or any exemptive or other relief that the Adviser or the Trust
     obtains from the SEC.  The Sub-Adviser agrees that all records that it
     maintains on behalf of the Portfolio are property of the Portfolio and the
     Sub-Adviser will surrender promptly to the Portfolio any of such records
     upon the Portfolio's request; provided, however, that the Sub-Adviser may
     retain a copy of such records.  In addition, for the duration of this
     Agreement, the  Sub-Adviser shall preserve for the periods prescribed by
     Rule  31a-2 under the 1940 Act any such records as are required to be
     maintained by it pursuant to this Agreement, and shall transfer said
     records to any successor Sub-Adviser upon the termination of his Agreement
     (or, if there is no successor Sub-Adviser, to the Adviser).

(e)  The Sub-Adviser shall provide the Portfolio's custodian on each business
     day with information relating to all transactions concerning the
     Portfolio's Assets and shall provide the Adviser with such information
     upon request of the Adviser.


                                      2
<PAGE>   3

(f)  The investment management services provided by the Sub-Adviser under this
     Agreement are not to be deemed exclusive and the Sub-Adviser shall be free
     to render similar services to others, as long as such services do not
     impair the services rendered to the Adviser or the Trust.

(g)  The Sub-Adviser shall promptly notify the Adviser of any financial
     condition that is likely to impair the Sub-Adviser's ability to fulfill
     its commitment under this Agreement.  The Sub-Adviser will notify the
     Adviser of any change in its partners within a reasonable time.

(h)  The Sub-Adviser shall review all proxy solicitation materials and be
     responsible for voting and handling all proxies in relation to the
     securities held in the Portfolio.  The Adviser shall instruct the
     custodian and other parties providing services to the Portfolio to
     promptly forward misdirected proxies to the Sub-Adviser.

     Services to be furnished by the Sub-Adviser under this Agreement may be
     furnished through the medium of any of the Sub-Adviser's partners,
     officers or employees.

2.   DUTIES OF THE ADVISER.  The Adviser shall continue to have responsibility
     for all services to be provided to the Portfolio pursuant to the Advisory
     Agreement and shall oversee and review the Sub-Adviser's performance of
     its duties under this Agreement; provided, however, that in connection
     with its management of the Assets, nothing herein shall be construed to
     relieve the Sub-Adviser of responsibility for compliance with the Trust's
     Declaration of Trust (as defined herein), the Prospectus, the instructions
     and directions of the Board of Trustees of the Trust, the requirements of
     the 1940 Act, the Internal Revenue Code of 1986, and all other applicable
     federal and state laws and regulations, as each is amended from time to
     time.

3.   DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
     copies properly certified or authenticated of each of the following
     documents:

(a)  The Trust's Agreement and Declaration of Trust, as filed with the
     Secretary of State of the Commonwealth of Massachusetts (such Agreement
     and Declaration of Trust, as in effect on the date of this Agreement and
     as amended from time to time, herein called the "Declaration of Trust");

(b)  By-Laws of the Trust (such By-Laws, as in effect on the date of this
     Agreement and as amended from time to time, are herein called the "By-
     Laws");

(c)  Prospectus(es) of the Portfolio.

4.   COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by the
     Sub-Adviser pursuant to this Agreement, the Adviser will pay the
     Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
     therefor, a sub-advisory fee at the rate specified in the Schedule(s)
     which is attached hereto and made part of this Agreement.  The fee will be
     calculated based on the average monthly market value of the Assets under
     the Sub-Adviser's management and will be paid to the Sub-Adviser monthly.
     Except as may otherwise be prohibited by law or regulation (including any
     then current SEC staff interpretation), the Sub-Adviser may, in its
     discretion and from time to time, waive a portion of its fee.

5.   LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not be
     liable for any error of judgment or for any loss suffered by the Adviser
     in connection with the performance of its 


                                       3
<PAGE>   4
     obligations under this Agreement, except a loss resulting from a breach
     of fiduciary duty with respect to the receipt of compensation for services
     (in which case any award of damages shall be limited to the period and the
     amount set forth in Section 36(b)(3) of the 1940 Act), or a loss resulting
     from willful misfeasance, bad faith or negligence on the Sub-Adviser's
     part in the performance of its duties or from reckless disregard of its
     obligations and duties under this Agreement, except as may otherwise be
     provided under provisions of applicable state law which cannot be waived
     or modified hereby.

6.   INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless the
     Adviser from and against any and all claims, losses, liabilities or
     damages (including reasonable attorney's fees and other related expenses)
     howsoever arising from or in connection with the performance of the
     Sub-Adviser's obligations under this Agreement;  provided, however, that
     the Sub-Adviser's obligation under this Section 6 shall be reduced to the
     extent that the claim against, or the loss, liability or damage
     experienced by the Adviser, is caused by or is otherwise directly related
     to the Adviser's own willful misfeasance, bad faith or negligence, or to
     the reckless disregard of its duties under this Agreement.

     The Adviser shall indemnify and hold harmless the Sub-Adviser from and
     against any and all claims, losses, liabilities or damages (including
     reasonable attorney's fees and other related expenses) howsoever arising
     from or in connection with the performance of the Adviser's obligations
     under this Agreement; provided, however, that the Adviser's obligation
     under this Section 6 shall be reduced to the extent that the claim
     against, or the loss, liability or damage experienced by the Sub-Adviser,
     is caused by or is otherwise directly related to the Sub-Adviser's own
     willful misfeasance, bad faith or negligence, or to the reckless disregard
     of its duties under this Agreement.

7.   DURATION AND TERMINATION.  This Agreement shall become effective upon its
     approval by the Trust's Board of Trustees and by the vote of a majority of
     the outstanding voting securities of the Portfolio.  This Agreement shall
     continue in effect for a period of more than two years from the date
     hereof only so long as continuance is specifically approved at least
     annually in conformance with the 1940 Act; provided, however, that this
     Agreement may be terminated with respect to the Portfolio (a) by the
     Portfolio at any time, without the payment of any penalty, by the vote of
     a majority of Trustees of the Trust or by the vote of a majority of the
     outstanding voting securities of the Portfolio, (b) by the Adviser at any
     time, without the payment of any penalty, on not more than 60 days' nor
     less than 30 days' written notice to the Sub-Adviser, or (c) by the
     Sub-Adviser at any time, without the payment of any penalty, on 90 days'
     written notice to the Adviser.  This Agreement shall terminate
     automatically and immediately in the event of its assignment, or in the
     event of a termination of the Adviser's agreement with the Trust.  As
     used in this Section 7, the terms "assignment" and "vote of a majority of
     the outstanding voting securities" shall have the respective meanings set
     forth in the 1940 Act and the rules and regulations thereunder, subject to
     such exceptions as may be granted by the Commission under the 1940 Act.

8.   GOVERNING LAW.  This Agreement shall be governed by the internal laws of
     the Commonwealth of Massachusetts, without regard to conflict of law
     principles; provided, however, that nothing herein shall be construed as
     being inconsistent with the 1940 Act.

9.   SEVERABILITY.  Should any part of this Agreement be held invalid by a
     court decision, statute, rule or otherwise, the remainder of this
     Agreement shall not be affected thereby.  This Agreement shall be binding
     upon and shall inure to the benefit of the parties hereto and their
     respective successors.





                                       4
<PAGE>   5


10.  NOTICE:  Any notice, advice or report to be given pursuant to this
     Agreement shall be deemed sufficient if delivered or mailed by registered,
     certified or overnight mail, postage prepaid addressed by the party giving
     notice to the other party at the last address furnished by the other
     party:

       To the Adviser at:            SEI Financial Management
                                     Corporation
                                     680 East Swedesford Road
                                     Wayne, PA 19087
                                     Attention:  Legal Department

       To the Sub-Adviser at:        Nicholas-Applegate Capital Management
                                     600 West Broadway, 29th Floor
                                     San Diego, CA 92101
                                     Attention:  General Counsel

11.  ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
     understanding between the parties hereto, and supersedes all prior
     agreements and understandings relating to this Agreement's subject matter.
     This Agreement may be executed in any number of counterparts, each of
     which shall be deemed to be an original, but such counterparts shall,
     together, constitute only one instrument.

12.  MISCELLANEOUS.  The name "Nicholas-Applegate" is a registered trademark of
     the Sub-Adviser, and any use or continued use of the name by the Adviser
     is subject to the Sub-Adviser's continuing consent, in its sole
     discretion, which consent will not be withheld during the term of this
     Agreement.

     A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

     Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be
executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation    Nicholas-Applegate Capital Management

By:                                     By:
   ---------------------------------       ----------------------------------

Name:                                   Name:
     -------------------------------         --------------------------------

Title:  Vice President                  Title:
      ------------------------------          -------------------------------





                                       5
<PAGE>   6

                                   SCHEDULE A
                                     TO THE
                   SUB-ADVISORY AGREEMENT DATED  _____, 1996
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
                     NICHOLAS-APPLEGATE CAPITAL MANAGEMENT


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Small Cap Portfolio              .50%





                                       6

<PAGE>   1



                                                                    EXHIBIT 5(q)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of ______, 1996, between SEI Financial
Management Corporation, (the "Adviser") and Provident Investment Counsel, Inc.
(the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Large Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets will
         be purchased, retained or sold by the Portfolio, and what portion of
         the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as provided in subparagraph (a) and will place orders
         with or through such persons, brokers or dealers to carry out the
         policy with respect to brokerage set forth in the Portfolio's
         Registration Statement (as defined herein) and Prospectus or as the
         Board of Trustees or the Adviser may direct from time to time, in
         conformity with federal securities laws.  In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will
         use its best efforts to seek on behalf of the Portfolio the best
         overall terms available.  In assessing the best overall terms
         available for any transaction, the Sub-Adviser shall consider all
         factors that it deems relevant, including the breadth of the market in
         the security, the price of the security, the financial condition and
         execution capability of the broker or dealer, and the reasonableness
         of the commission, if any, both for the specific transaction and on a
         continuing basis.  In evaluating the best overall terms available, and
         in selecting the broker-dealer to execute a particular transaction,
         the Sub-Adviser may also consider the brokerage and research services
         provided (as those terms are defined in Section 28(e) of the
         Securities Exchange Act of 1934).  Consistent with any guidelines
         established by the Board of Trustees of the Trust, the Sub-Adviser is
         authorized to pay to a broker or dealer who provides such brokerage
         and research services a commission for executing a portfolio
         transaction for the Portfolio which is in excess of the amount of
         commission another broker or dealer would have charged for effecting
         that transaction if, but only if, the Sub-Adviser determines in good
         faith that such commission was reasonable in relation to the value of
         the brokerage and research services provided by such broker or dealer
         - - viewed in terms of that particular transaction or terms of the
         overall responsibilities of the Sub-Adviser to the Portfolio.  In
         addition, the Sub-Adviser if authorized to allocate purchase and sale
         orders for securities to brokers or dealers (including brokers and
         dealers that are affiliated with the Adviser, Sub-Adviser or the
         Trust's principal underwriter) to take into account the sale of shares
         of the Trust if the Sub-Adviser believes that the quality of the
         transaction and the commission are comparable to what they would be
         with other qualified firms.  In no instance, however, will the
         Portfolio's Assets be purchased from or sold to the Adviser,
         Sub-Adviser, the Trust's principal underwriter, or any affiliated
         person of either the Trust, Adviser, the Sub-Adviser or the principal
         underwriter, acting as principal in the transaction, except to the
         extent permitted by the Securities and Exchange Commission ("SEC") and
         the 1940 Act.
          
<PAGE>   2

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall provide to the Adviser or the Board
         of Trustees such periodic and special reports, balance sheets or
         financial information, and such other information with regard to its
         affairs as the Adviser or Board of Trustees may reasonably request.
         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.

         The Sub-Adviser shall also furnish to the Adviser any other
         information relating to the Assets that is required to be filed by the
         Adviser or the Trust with the SEC or sent to shareholders under the
         1940 Act (including the rules adopted thereunder) or any exemptive or
         other relief that the Adviser or the Trust obtains from the SEC.  The
         Sub-Adviser agrees that all records that it maintains on behalf of the
         Portfolio are property of the Portfolio and the Sub-Adviser will
         surrender promptly to the Portfolio any of such records upon the
         Portfolio's request; provided, however, that the Sub-Adviser may
         retain a copy of such records.  In addition, for the duration of this
         Agreement, the  Sub-Adviser shall preserve for the periods prescribed
         by Rule  31a-2 under the 1940 Act any such records as are required to
         be maintained by it pursuant to this Agreement, and shall transfer
         said records to any successor sub-adviser upon the termination of this
         Agreement (or, if there is no successor sub-adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance with the Trust's Declaration of Trust
         (as defined herein), the Prospectus, the instructions and directions
         of the Board of Trustees of the Trust, the requirements of the 1940
         Act, the Internal Revenue Code of 1986, and all other applicable
         federal and state laws and regulations, as each is amended from time
         to time.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any then current SEC staff interpretation), the
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; provided,
         however, that the Sub-Adviser's obligation under this Section 5 shall
         be reduced to the extent that the claim against, or the loss,
         liability or damage experienced by the Adviser, is caused by or is
         otherwise directly related to the Adviser's own willful misfeasance,
         bad faith or negligence, or to the reckless disregard of its duties
         under this Agreement.

6.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio.  This
         Agreement shall continue in effect for a period of more than two years
         from the date hereof only so long as continuance is specifically
         approved at least annually in conformance

                                      2
<PAGE>   3

         with the 1940 Act; provided, however, that this Agreement may be
         terminated with respect to the Portfolio (a) by the Portfolio at any
         time, without the payment of any penalty, by the vote of a majority of
         Trustees of the Trust or by the vote of a majority of the outstanding
         voting securities of the Portfolio, (b) by the Adviser at any time,
         without the payment of any penalty, on not more than 60 days' nor less
         than 30 days' written notice to the Sub-Adviser, or (c) by the
         Sub-Adviser at any time, without the payment of any penalty, on 90
         days' written notice to the Adviser.  This Agreement shall terminate
         automatically and immediately in the event of its assignment, or in
         the event of a termination of the Adviser's agreement with the Trust.
         As used in this Section 6, the terms "assignment" and "vote of a
         majority of the outstanding voting securities" shall have the
         respective meanings set forth in the 1940 Act and the rules and
         regulations thereunder, subject to such exceptions as may be granted
         by the SEC under the 1940 Act.

7.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

8.       SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

9.       NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:            SEI Financial Management Corporation
                                       680 East Swedesford Road
                                       Wayne, PA 19087
                                       Attention:  Legal Department
                                      
         To the Sub-Adviser at:        Provident Investment Counsel, Inc.
                                       300 North Lake Avenue, Penthouse
                                       Pasadena, CA 91101
                                       Attention:  President

10.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust is on file with the Secretary of
State of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.



SEI Financial Management Corporation         Provident Investment Counsel, Inc.
                                             
By:                                          By:                               
     -------------------------------              -----------------------------
                                             
Name:                                        Name:                             
     -------------------------------              -----------------------------
                                             
Title:                                       Title:                            
     -------------------------------              -----------------------------





                                       3
<PAGE>   4

                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
                       PROVIDENT INVESTMENT COUNSEL, INC.


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Large Cap Portfolio                                      .25%





                                       4

<PAGE>   1

                                                                    EXHIBIT 5(r)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this ______ day of ____________, 1996, by and among SEI
Financial Management Corporation, (the "Adviser") and Schroder Capital
Management International Limited (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust"), is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ___, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the International Equity
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time  what Assets
         will be purchased, retained or sold by the Portfolio, and what portion
         of the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio and will place orders with or through such persons,
         brokers or dealers to carry out the policy with respect to brokerage
         set forth in the Portfolio's Registration Statement (as defined
         herein) and Prospectus or as the Board of Trustees or the Adviser may
         direct from time to time, in conformity with federal securities laws.
         In executing Portfolio transactions and selecting brokers or dealers,
         the Sub-Adviser will use its best efforts to seek on behalf of the
         Portfolio the best overall terms available.  In assessing the best
         overall terms available for any transaction, the Sub-Adviser shall
         consider all factors that it deems relevant, including the breadth of
         the market in the security, the price of the security, the financial
         condition and execution capability of the broker or dealer, and the
         reasonableness of the commission, if any, both for the specific
         transaction and on a continuing





<PAGE>   2

         basis.  In evaluating the best overall terms available, and in
         selecting the broker-dealer to execute a particular transaction the
         Sub-Adviser may also consider the brokerage and research services (as
         those terms are defined in Section 28(e) of the Securities Exchange
         Act of 1934) provided to the Portfolio and/or other accounts over
         which the Sub-Adviser or an affiliate of the Sub-Adviser may exercise
         investment discretion.  The Sub-Adviser is authorized, subject to the
         prior approval of the Trust's Board of Trustees, to pay to a broker or
         dealer who provides such brokerage and research services a commission
         for executing a portfolio transaction for the Portfolio which is in
         excess of the amount of commission another broker or dealer would have
         charged for effecting that transaction if, but only if, the
         Sub-Adviser determines in good faith that such commission was
         reasonable in relation to the value of the brokerage and research
         services provided by such broker or dealer - - viewed in terms of that
         particular transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser if
         authorized to allocate purchase and sale orders for securities to
         brokers or dealers (including brokers and dealers that are affiliated
         with the Adviser, Sub-Adviser or the Trust's principal underwriter)
         to take into account the sale of shares of the Trust if the Sub-
         Adviser believes that the quality of the transaction and the
         commission are comparable to what they would be with other qualified
         firms.  In no instance, however, will the Portfolio's Assets be
         purchased from or sold to the Adviser, Sub-Adviser, the Trust's
         principal underwriter, or any affiliated person of either the Trust,
         Adviser, the Sub-Adviser or the principal underwriter, acting as
         principal in the transaction, except to the extent permitted by the
         Securities and Exchange Commission and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act and shall render to the Adviser or Board of Trustees such
         periodic and special reports as the Adviser or Board of Trustees may
         reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.  The Sub-Adviser shall also
         furnish to the Adviser any other information relating to the Assets
         that is required to be filed by the Adviser or the Trust with the
         Securities and Exchange Commission ("SEC") or sent to shareholders
         under the 1940 Act (including the rules adopted thereunder) or any
         exemptive or other relief that the Adviser or the Trust obtains from
         the SEC.  The Sub-Adviser agrees that all records that it maintains on
         behalf of the Portfolio are property of the Portfolio and the
         Sub-Adviser will surrender promptly to the Portfolio any of such
         records upon the Portfolio's request; provided, however, that the
         Sub-Adviser may retain a copy of such records.  In addition, for the
         duration of this Agreement, the  Sub-Adviser shall preserve for the
         periods prescribed by Rule  31a-2 under the 1940 Act any such records
         as are required to be maintained by it pursuant to this Agreement, and
         shall transfer said records to any successor Sub-Adviser upon the
         termination of his Agreement (or, if there is no successor Sub-
         Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.





                                       2
<PAGE>   3

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that nothing herein shall be construed to relieve
         the Sub-Adviser of responsibility for compliance with the Portfolio's
         investment objectives, policies, and restrictions, as provided in
         Section 1 hereunder, in connection with its management of the Assets.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any SEC staff current interpretation thereon),
         the Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with performance of its obligations under this
         Agreement, except a loss resulting from a breach of fiduciary duty
         with respect to the receipt of compensation for services (in which
         case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.





                                       3
<PAGE>   4

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all prospectuses,
         proxy statements, reports to stockholders, sales literature or other
         materials prepared for distribution to stockholders of the Portfolios,
         the Trust or the public that refer to the Sub-Adviser or its clients
         in any way prior to use thereof and not to use material if the
         Sub-Adviser reasonably objects in writing within five business days
         (or such other period as may be mutually agreed) after receipt
         thereof.  The Sub-Adviser's right to object to such materials is
         limited to the portions of such materials that expressly relate to the
         Sub-Adviser, its services and its clients.  The Adviser agrees to use
         its reasonable best efforts to ensure that materials prepared by its
         employees or agents or its affiliates that refer to the Sub-Adviser or
         its clients in any way are consistent with those materials previously
         approved by the Sub-Adviser as referenced in the first sentence of
         this paragraph.  Sales literature may be furnished to the Sub-Adviser
         by first class or overnight mail, facsimile transmission equipment or
         hand delivery.

7.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         by the Sub-Adviser of its duties under this Agreement;  provided,
         however, that the Sub-Adviser shall not be required to indemnify or
         otherwise hold the Adviser harmless under this Section 7 where the
         claim against, or the loss, liability or damage experienced by the
         Adviser, is caused by or is otherwise directly related to the
         Adviser's own willful misfeasance, bad faith or negligence, or to the
         reckless disregard of its duties under this Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) howsoever
         arising from or in connection with the performance by the Adviser of
         its duties under this Agreement; provided, however, that the Adviser
         shall not be required to indemnify or otherwise hold the Sub-Adviser
         harmless under this Section 7 where the claim against, or the loss,
         liability or damage experienced by the Sub-Adviser, is caused by or is
         otherwise directly related to the Sub-Adviser's own willful
         misfeasance, bad faith or negligence, or to the reckless disregard of
         its duties under this Agreement.

8.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         execution by the parties and shall continue in effect for a period of
         more than two years from the date hereof only so long as continuance
         is specifically approved at least annually in conformance with the
         1940 Act; provided, however, that this Agreement may be terminated
         with respect to the Portfolio (a) by the Portfolio at any time,
         without the payment of any penalty, by the vote of a majority of
         Trustees of the Trust or by the vote of a majority of the outstanding
         voting securities of the Portfolio, (b) by the Adviser at any time,
         without the payment of any penalty, on not more than 60 days' nor less
         than 30 days' written notice to the Sub-Adviser, or (c) by the Sub-
         Adviser at any time, without the payment of any penalty, on 90 days'
         written notice to the Adviser.  This Agreement shall terminate
         automatically and immediately in the event of its assignment, or in
         the event of a termination of the Adviser's agreement with the Trust.
         As used in this Section 8, the terms "assignment" and "vote of a
         majority of the outstanding voting securities" shall have the
         respective meanings set forth in the 1940 Act and the rules and
         regulations thereunder, subject to such exceptions as may be granted
         by the Commission under the 1940 Act.

9.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.





                                       4
<PAGE>   5

10.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

11.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:            SEI Financial Management Corporation
                                       680 East Swedesford Road
                                       Wayne, PA 19087
                                       Attention:  Legal Department
                                        
         To the Sub-Adviser at:        Schroder Capital Management International
                                       Limited
                                       33 Gutter Lane
                                       London EC2V 8AS England
                                       Attention:  Chief Executive

12.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

13.      MISCELLANEOUS.  In addition to being registered as an investment
         adviser under said U.S. Investment Advisers Act of 1940, the
         Sub-Adviser is registered with the United Kingdom Investment
         Management Regulatory Organization ("IMRO").  The Sub-Adviser confirms
         that the Trust is a Non-private Customer as defined by IMRO.  The
         Trust confirms that it has taken legal advice on this Agreement,
         independent of the Sub-Adviser.

         The presence of exculpatory language in this Agreement shall not be
         deemed by the Trust, the Adviser, the Sub-Adviser or any other party
         appointed in connection with this Agreement as in any way limiting
         causes of action and remedies which may, notwithstanding such
         language, be available to the Trust, either under common law or
         statutory law principles applicable to fiduciary relationships under
         the federal securities laws.

         A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.





                                       5
<PAGE>   6


SEI Financial Management Corporation      Schroder Capital Management
                                           International Limited        
By:                                       By:             
     -------------------------------         ---------------------------------- 
Name:                                     Name:       
     -------------------------------           -------------------------------- 
Title:                                    Title:                   
      ------------------------------            -------------------------------





                                       6
<PAGE>   7



                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
               SCHRODER CAPITAL MANAGEMENT INTERNATIONAL LIMITED

Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:


                          .50% on the first $100 million
                          .30% on the next $50 million
                          .20% thereafter





                                       7

<PAGE>   1

                                                                    EXHIBIT 5(s)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of _______, 1996, by and between SEI
Financial Management Corporation (the "Adviser") and Strategic Fixed Income,
L.P. (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust"), is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940 Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser  acts as investment adviser to the International Fixed Income
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services, upon the terms and subject
to the conditions set forth below.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it by
         the Adviser (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), provided the
         Sub-Adviser shall be given reasonable advance notice of any such
         amendments and supplements, and subject to the following:

(a)      The Sub-Adviser, subject to the direction of the Adviser, and, at the
         request of the Adviser, in consultation with the Adviser, shall
         determine from time to time what Assets will be purchased, retained
         or disposed of by the Portfolio, and what portion of the Assets will
         be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         applicable requirements of the 1940 Act, the applicable requirements
         of Subchapter M of the Internal Revenue Code of 1986, and all other
         applicable federal and state laws and regulations, as each is amended
         from time to time; provided, however, that in no event shall the
         Sub-Adviser be obligated to act in conformity with any instruction or
         direction of the Adviser or of the Board of Trustees of the Trust if
         the Sub-Adviser believes in good faith (in consultation with counsel,
         where practicable) that implementation of such instruction or
         direction





<PAGE>   2

         would involve the Sub-Adviser in a violation of law or willful
         malfeasance, bad faith or gross negligence on its part.


(c)      The Sub-Adviser shall determine the Assets to be purchased or disposed
         of by the Portfolio as provided in subparagraph (a) and will place
         orders with or through such brokers, dealers or banks to carry out the
         policy with respect to brokerage set forth in the Portfolio's
         Prospectus or as the Board of Trustees or the Adviser may direct from
         time to time, in conformity with federal securities laws.  In
         executing Portfolio transactions and selecting brokers, dealers or
         banks the Sub-Adviser will use its best efforts to seek on behalf of
         the Portfolio the best overall terms available.  In assessing the best
         overall terms available for any transaction, the Sub-Adviser shall
         consider all factors that it deems relevant, including the breadth of
         the market in the security, the price of the security, the financial
         condition and execution capability of the broker, dealer, or bank and
         the reasonableness of the commission, if any, both for the specific
         transaction and on a continuing basis.


         The Sub-Adviser is authorized to allocate purchase and sale orders for
         securities to brokers or dealers (including brokers and dealers that
         are affiliated with the Adviser, Sub-Adviser or the Trust's principal
         underwriter) to take into account the sale of shares of the Trust if
         the Sub-Adviser believes that the quality of the transaction and the
         commission are comparable to what they would be with other qualified
         firms.  In no instance, however, will the Portfolio's Assets be
         purchased from or sold to the Adviser, Sub-Adviser, the Trust's
         principal underwriter, or any affiliated person of either the Trust,
         Adviser, the Sub-Adviser or the principal underwriter, acting as
         principal in the transaction, except to the extent permitted by or
         under  the 1940 Act or by the Securities and Exchange Commission
         ("SEC").

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act and shall render to the Adviser or Board of Trustees such
         periodic and special reports as the Adviser or Board of Trustees may
         reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser, at its request, all
         information relating to the Sub-Adviser's services under this
         Agreement needed by the Adviser to keep the other books and records of
         the Portfolio required by Rule 31a-1 under the 1940 Act.  The
         Sub-Adviser shall also furnish to the Adviser, at its request, any
         other information relating to the Assets that is required to be filed
         by the Adviser or the Trust with the SEC or sent to shareholders under
         the 1940 Act (including the rules adopted thereunder) or any exemptive
         or other relief that the Adviser or the Trust obtains from the SEC, in
         each case with respect to the Trust, the Portfolio, or the Assets.
         The Sub-Adviser agrees that all records that it maintains on behalf of
         the Portfolio are property of the Portfolio and the Sub-Adviser will
         surrender promptly to the




                                      2
<PAGE>   3

         Portfolio any of such records upon the Portfolio's request; provided,
         however, that the Sub-Adviser may retain a copy of such records.  In
         addition, for the duration of this Agreement, the  Sub-Adviser shall
         preserve for the periods prescribed by Rule  31a-2 under the 1940 Act
         any such records as are required to be maintained by it pursuant to
         this Agreement, and shall transfer said records to any successor
         Sub-Adviser upon the termination of his Agreement (or, if there is no
         successor Sub-Adviser, to the Adviser); provided, however, that the
         Sub-Adviser may retain a copy of such records.

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The Sub-Adviser and its partners and its and their respective
         partners, stockholders, directors, officers, employees and agents act,
         may continue to act and in the future may act as investment managers
         or investment advisers to others and may invest for their own
         accounts, and nothing in this Agreement shall in any way be construed
         or deemed to restrict the right of any such person to perform
         investment management or investment advisory services for others or to
         invest for its own account, and the performance of such services for
         others and such investing shall not be deemed to violate or give rise
         to any duty or obligation to the Trust, the Portfolio or the Adviser,
         except as otherwise provided by law.  The Sub-Adviser agrees to act in
         a manner consistent with its fiduciary obligation to deal fairly with
         all clients when taking investment actions.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to materially impair the Sub-Adviser's
         ability to fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         (i)     The Sub-Adviser will notify the Trust and the Adviser of any
         changes to the membership of the Sub-Adviser within a reasonable time
         after such change.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees, or the officers or employees of the
         Sub-Adviser's general partner.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that, in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance with the applicable provisions of the
         Trust's Declaration of Trust (as defined herein), the applicable
         provisions of the Prospectus, the instructions and directions of the
         Board of Trustees of





                                      3
<PAGE>   4

         the Trust (subject to the provisions of Section 1(b) hereunder), the
         applicable requirements of the 1940 Act, the applicable requirements
         of Subchapter M of the Internal Revenue Code of 1986, and all other
         applicable federal and state laws and regulations, as each is amended
         from time to time.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of, and will furnish the
         Sub-Adviser with copies properly certified or authenticated of
         amendments and supplements to, each of the following documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any then-current SEC staff interpretation), the
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The duties of the
         Sub-Adviser shall be confined to those expressly set forth herein, and
         no implied duties are assumed by or may be asserted against the
         Sub-Adviser hereunder.  The Sub-Adviser shall not be liable for any
         error of judgment or mistake of law or for any loss arising out of any
         investment or for any act or omission in carrying out its duties
         hereunder, except a loss resulting from willful misfeasance, bad faith
         or gross negligence on the Sub-Adviser's part in the performance of
         its obligations or duties, or from reckless disregard of its
         obligations or duties, under this Agreement, except as may otherwise
         be provided under provisions of applicable state law to the extent
         such provisions cannot be waived or modified hereby.  The Adviser
         hereby acknowledges that it considers the Sub-Adviser to be a
         "corporate agent" of the Adviser within the meaning of the last
         sentence of Section 9 of the Investment Advisory Agreement between the
         Trust and the Adviser with respect to the Portfolio.

6.       REPORTS.  During the term of this Agreement, the Adviser agrees to
         furnish the Sub-Adviser at its principal office all Prospectuses,
         proxy statements, reports to stockholders,




                                      4
<PAGE>   5

         sales literature or other materials prepared for distribution to
         stockholders of the Portfolio, the Trust or the public that refer to
         the Sub-Adviser, its services or its clients in any way prior to use
         thereof and not to use such materials if the Sub-Adviser reasonably
         objects in writing within five business days (or such other period as
         may be mutually agreed) after receipt thereof.  The Sub-Adviser's
         right to object to such materials is limited to the portions of such
         materials that expressly relate to the Sub-Adviser, its services or
         its clients.  The Adviser agrees to use its reasonable best efforts to
         ensure that materials prepared by its employees or agents or its
         affiliates that refer to the Sub-Adviser, its services or its clients
         in any way are consistent with those materials previously approved by
         the Sub-Adviser as referenced in the first sentence of this paragraph.
         Sales literature may be furnished to the Sub-Adviser by first class or
         overnight mail, facsimile transmission equipment or hand delivery.

7.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) arising from or in connection with  the performance by the
         Sub-Adviser of its obligations or duties under this Agreement;
         provided, however, that (a) the Sub-Adviser shall not be obligated to
         indemnify or hold harmless the Adviser from or against any claim,
         loss, liability, or damage in respect of which the Sub-Adviser is not
         liable pursuant to Section 5 hereof; and (b) the Sub-Adviser's
         obligation under this Section 7 shall be reduced to the extent that
         the claim against, or the loss, liability or damage experienced by,
         the Adviser, is caused by or is otherwise directly related to the
         Adviser's own willful misfeasance, bad faith or negligence, or to the
         reckless disregard of its obligations or duties under this Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all claims, losses, liabilities or damages (including
         reasonable attorney's fees and other related expenses) arising from or
         in connection with the performance by the Adviser of its obligations
         or duties under this Agreement; provided, however, that the Adviser's
         obligation under this Section 7 shall be reduced to the extent that
         the claim against, or the loss, liability or damage experienced by,
         the Sub-Adviser, is caused by or is otherwise directly related to the
         Sub-Adviser's own willful misfeasance, bad faith or negligence, or to
         the reckless disregard of its obligations or duties under this
         Agreement.

8.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio.

         This Agreement shall continue in effect until terminated as provided
         below; provided, however, that this Agreement shall continue in effect
         for a period of more than two years from the date hereof only so long
         as such continuance is specifically approved at least annually in
         conformance with the Section 15(a)(2) of the 1940 Act.  This Agreement
         may be terminated (a) by the Portfolio at any time, on written notice
         to the Sub-Adviser, without the payment of any penalty, by the Board
         of Trustees of the Trust or by the vote of a majority of the
         outstanding voting securities of the Portfolio, (b) by the Adviser at
         any time, without the payment of any penalty, on not more than 60
         days' nor less than




                                      5
<PAGE>   6

         30 days' written notice to the Sub-Adviser, or (c) by the Sub-Adviser
         at any time, without the payment of any penalty, on not less than 90
         days' written notice to the Adviser.  This Agreement shall terminate
         automatically and immediately in the event of its assignment, or in
         the event of a termination of the Adviser's investment advisory
         agreement with the Trust.  As used in this Section 8, the terms
         "assignment" and "vote of a majority of the outstanding voting
         securities" shall have the respective meanings set forth in the 1940
         Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the SEC under the 1940 Act.

         Upon the termination of this Agreement, the Sub-Adviser shall not be
         obligated to take or recommend any action with respect to the Assets.

9.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

10.      SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

11.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:

         To the Adviser at:             SEI Financial Management Corporation
                                        680 East Swedesford Road
                                        Wayne, PA 19087
                                        Attention:  Legal Department
                                        
         To the Sub-Adviser at:         Strategic Fixed Income, L.P.
                                        1001 Nineteenth Street North
                                        Suite 1720
                                        Arlington, VA 22209
                                        Attention:  Vice President




                                      6
<PAGE>   7


12.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation            Strategic Fixed Income L.P.
                                                     By: Gobi Investment, Inc.
                                                
By:                                             By:                            
     -------------------------------                ---------------------------
Name:                                           Name:
     -------------------------------                 --------------------------
Title:                                          Title:
      ------------------------------                  -------------------------


                                      7
<PAGE>   8

                                   SCHEDULE A
                                     TO THE
                             SUB-ADVISORY AGREEMENT
                                    BETWEEN
                      SEI FINANCIAL MANAGEMENT CORPORATION
                                      AND
                          STRATEGIC FIXED INCOME, L.P.

Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

International Fixed Income Portfolio                     .30%




                                      8

<PAGE>   1
                                                                    EXHIBIT 5(t)

                       INVESTMENT SUB-ADVISORY AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this _____ day of ______________, 1996, between SEI
Financial Management Corporation, (the "Adviser") and Wall Street Associates
(the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ______, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Small Cap Portfolio
(the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, in consultation with and subject to the
         direction of the Adviser, determine from time to time what Assets will
         be purchased, retained or sold by the Portfolio, and what portion of
         the Assets will be invested or held uninvested in cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as provided in subparagraph (a) and will place orders
         with or through such persons, brokers or dealers to carry out the
         policy with respect to brokerage set forth in the Portfolio's
         Registration Statement (as defined herein) and Prospectus or as the
         Board of Trustees or the Adviser may direct from time to time, in
         conformity with federal securities laws.  In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will
         use its best efforts to seek on behalf of the Portfolio the best
         overall terms available.  In assessing the best overall terms
         available for any transaction, the Sub-Adviser shall consider all
         factors that it deems relevant, including the breadth of the market in
         the security, the price of the security, the financial condition and
         execution capability of the broker or dealer, and the reasonableness
         of the commission, if any, both for the





<PAGE>   2

         specific transaction and on a continuing basis.  In evaluating the
         best overall terms available, and in selecting the broker-dealer to
         execute a particular transaction, the Sub-Adviser may also consider
         the brokerage and research services provided (as those terms are
         defined in Section 28(e) of the Securities Exchange Act of 1934).
         Consistent with any guidelines established by the Board of Trustees of
         the Trust, the Sub-Adviser is authorized to pay to a broker or dealer
         who provides such brokerage and research services a commission for
         executing a portfolio transaction for the Portfolio which is in excess
         of the amount of commission another broker or dealer would have
         charged for effecting that transaction if, but only if, the Sub-
         Adviser determines in good faith that such commission was reasonable
         in relation to the value of the brokerage and research services
         provided by such broker or dealer - - viewed in terms of that
         particular transaction or terms of the overall responsibilities of the
         Sub-Adviser to the Portfolio.  In addition, the Sub-Adviser if
         authorized to allocate purchase and sale orders for securities to
         brokers or dealers (including brokers and dealers that are affiliated
         with the Adviser, Sub-Adviser or the Trust's principal underwriter) to
         take into account the sale of shares of the Trust if the Sub-Adviser
         believes that the quality of the transaction and the commission are
         comparable to what they would be with other qualified firms.  In no
         instance, however, will the Portfolio's Assets be purchased from or
         sold to the Adviser, Sub-Adviser, the Trust's principal underwriter,
         or any affiliated person of either the Trust, Adviser, the Sub-Adviser
         or the principal underwriter, acting as principal in the transaction,
         except to the extent permitted by the Securities and Exchange
         Commission and the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall provide to the Adviser or the Board
         of Trustees such periodic and special reports, balance sheets or
         financial information, and such other information with regard to its
         affairs as the Adviser or Board of Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.  The Sub-Adviser shall also
         furnish to the Adviser any other information relating to the Assets
         that is required to be filed by the Adviser or the Trust with the
         Securities and Exchange Commission ("SEC") or sent to shareholders
         under the 1940 Act (including the rules adopted thereunder) or any
         exemptive or other relief that the Adviser or the Trust obtains from
         the SEC.  The Sub-Adviser agrees that all records that it maintains on
         behalf of the Portfolio are property of the Portfolio and the
         Sub-Adviser will surrender promptly to the Portfolio any of such
         records upon the Portfolio's request; provided, however, that the
         Sub-Adviser may retain a copy of such records.  In addition, for the
         duration of this Agreement, the  Sub-Adviser shall preserve for the
         periods prescribed by Rule  31a-2 under the 1940 Act any such records
         as are required to be maintained by it pursuant to this Agreement, and
         shall transfer said records to any successor Sub-Adviser upon the
         termination of his Agreement (or, if there is no successor Sub-
         Adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not



                                      2
<PAGE>   3

         to be deemed exclusive and the Sub-Adviser shall be free to render
         similar services to others, as long as such services do not impair the
         services rendered to the Adviser or the Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.

(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance with the Trust's Declaration of Trust
         (as defined herein), the Prospectus, the instructions and directions
         of the Board of Trustees of the Trust, the requirements of the 1940
         Act, the Internal Revenue Code of 1986, and all other applicable
         federal and state laws and regulations, as each is amended from time
         to time.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any then current SEC staff interpretation), the
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with the performance of its obligations under
         this Agreement, except a loss resulting from a breach of fiduciary
         duty with respect to the receipt of compensation for services (in
         which case any award of damages shall be



                                      3

<PAGE>   4

         limited to the period and the amount set forth in Section 36(b)(3) of
         the 1940 Act), or a loss resulting from willful misfeasance, bad faith
         or negligence on the Sub-Adviser's part in the performance of its
         duties or from reckless disregard of its obligations and duties under
         this Agreement, except as may otherwise be provided under provisions
         of applicable state law which cannot be waived or modified hereby.

6.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; the actions of
         the Sub-Adviser under this Agreement; provided, however, that the
         Sub-Adviser's obligation under this Section 6 shall be reduced to the
         extent that the claim against, or the loss, liability or damage
         experienced by the Adviser, is caused by or is otherwise directly
         related to the Adviser's own willful misfeasance, bad faith or
         negligence, or to the reckless disregard of its duties under this
         Agreement.

7.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio.

         This Agreement shall continue in effect for a period of more than two
         years from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         Adviser.  This Agreement shall terminate automatically and immediately
         in the event of its assignment, or in the event of a termination of
         the Adviser's agreement with the Trust.  As used in this Section 7,
         the terms "assignment" and "vote of a majority of the outstanding
         voting securities" shall have the respective meanings set forth in the
         1940 Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the Commission under the 1940 Act.

8.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

9.       SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

10.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:




                                      4
<PAGE>   5


         To the Adviser at:                 SEI Financial Management Corporation
                                            680 East Swedesford Road
                                            Wayne, PA 19087
                                            Attention:  Legal Department
                                              
         To the Sub-Adviser at:             Wall Street Associates
                                            1200 Prospect Street
                                            Suite 100
                                            La Jolla, CA 92037
                                            Attention: President

11.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that the obligations of this instrument are not binding upon any of the
Trustees, officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
Commission, whether of special or general application, such provision shall be
deemed to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.


SEI Financial Management Corporation        Wall Street Associates
                                               
By:                                         By:                                
     ---------------------------------           ------------------------------
                                               
Name:                                       Name:                              
     ---------------------------------           ------------------------------
                                               
Title:                                      Title:                         
     ---------------------------------           ------------------------------




                                      3
<PAGE>   6

                                  SCHEDULE A
                                    TO THE
              SUB-ADVISORY AGREEMENT DATED ______________, 1996
                                   BETWEEN
                     SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                            WALL STREET ASSOCIATES


Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Small Cap Portfolio                        .50%





                                      6

<PAGE>   1
                                                                    EXHIBIT 5(u)

                      INVESTMENT SUB-ADVISORY AGREEMENT
                     SEI INSTITUTIONAL INVESTMENTS TRUST

         AGREEMENT made this ____ day of _____________, 1996, between SEI
Financial Management Corporation, (the "Adviser") and Western Asset Management
Company (the "Sub-Adviser").

         WHEREAS, SEI Institutional Investments Trust, a Massachusetts business
trust (the "Trust") is registered as an open-end management investment company
under the Investment Company Act of 1940, as amended (the "1940  Act"); and

         WHEREAS, the Adviser has entered into an Investment Advisory Agreement
dated June ____, 1996 (the "Advisory Agreement") with the Trust, pursuant to
which the Adviser will act as investment adviser to the Core Fixed Income
Portfolio (the "Portfolio"), which is a series of the Trust; and

         WHEREAS, the Adviser, with the approval of the Trust, desires to
retain the Sub-Adviser to provide investment advisory services to the Adviser
in connection with the management of the Portfolio, and the Sub-Adviser is
willing to render such investment advisory services.

         NOW, THEREFORE, the parties hereto agree as follows:

1.       DUTIES OF THE SUB-ADVISER.  Subject to supervision by the Adviser and
         the Trust's Board of Trustees, the Sub-Adviser shall manage all of
         the securities and other assets of the Portfolio entrusted to it
         hereunder (the "Assets"), including the purchase, retention and
         disposition of the Assets, in accordance with the Portfolio's
         investment objectives, policies and restrictions as stated in the
         Portfolio's prospectus and statement of additional information,  as
         currently in effect and as amended or supplemented from time to time
         (referred to collectively as the "Prospectus"), and subject to the
         following:

(a)      The Sub-Adviser shall, subject to the Prospectus and any written
         instruction or direction of the Adviser, determine from time to time
         what Assets will be purchased, retained or sold by the Portfolio, and
         what portion of the Assets will be invested or held uninvested in
         cash.

(b)      In the performance of its duties and obligations under this Agreement,
         the Sub-Adviser shall act in conformity with the Trust's Declaration
         of Trust (as defined herein) and the Prospectus and with the
         instructions and directions of the Adviser and of the Board of
         Trustees of the Trust and will conform to and comply with the
         requirements of the 1940 Act, the Internal Revenue Code of 1986, and
         all other applicable federal and state laws and regulations, as each
         is amended from time to time.

(c)      The Sub-Adviser shall determine the Assets to be purchased or sold by
         the Portfolio as provided in subparagraph (a) and will place orders
         with or through such persons, brokers or dealers to carry out the
         policy with respect to brokerage set forth in the Portfolio's
         Registration Statement (as defined herein) and Prospectus or as the
         Board of Trustees or the Adviser may direct from time to time, in
         conformity with federal securities laws.  In executing Portfolio
         transactions and selecting brokers or dealers, the Sub-Adviser will
         use its best efforts to seek on behalf of the Portfolio the best
         overall terms available.  In assessing the best overall terms
         available for any transaction, the Sub-Adviser shall consider all
         factors that it deems relevant, including the breadth of the market in
         the security, the price of the security, the financial condition and
         execution capability of the broker or dealer, and the reasonableness
         of the commission, if any, both for the specific transaction and on a
         continuing basis.  In evaluating the best overall terms available, and
         in selecting the broker-dealer to execute a particular transaction,
         the Sub-Adviser may also consider the brokerage and research services
         provided (as those terms are defined in Section 28(e)
<PAGE>   2

         of the Securities Exchange Act of 1934).  Consistent with any
         guidelines established by the Board of Trustees of the Trust, the
         Sub-Adviser is authorized to pay to a broker or dealer who provides
         such brokerage and research services a commission for executing a
         portfolio transaction for the Portfolio which is in excess of the
         amount of commission another broker or dealer would have charged for
         effecting that transaction if, but only if, the Sub-Adviser determines
         in good faith that such commission was reasonable in relation to the
         value of the brokerage and research services provided by such broker
         or dealer -- viewed in terms of that particular transaction or terms
         of the overall responsibilities of the Sub-Adviser to the Portfolio.
         In addition, the Sub-Adviser if authorized to allocate purchase and
         sale orders for securities to brokers or dealers (including brokers
         and dealers that are affiliated with the Adviser, Sub-Adviser or the
         Trust's principal underwriter) to take into account the sale of shares
         of the Trust if the Sub-Adviser believes that the quality of the
         transaction and the commission are comparable to what they would be
         with other qualified firms.  In no instance, however, will the
         Portfolio's Assets be purchased from or sold to the Adviser,
         Sub-Adviser, the Trust's principal underwriter, or any affiliated
         person of either the Trust, Adviser, the Sub-Adviser or the principal
         underwriter, acting as principal in the transaction, except to the
         extent permitted by the Securities and Exchange Commission ("SEC") and
         the 1940 Act.

(d)      The Sub-Adviser shall maintain all books and records with respect to
         transactions involving the Assets required by subparagraphs (b)(5),
         (6), (7), (9), (10) and (11) and paragraph (f) of Rule 31a-1 under the
         1940 Act.  The Sub-Adviser shall provide to the Adviser or the Board
         of Trustees such periodic and special reports, balance sheets or
         financial information, and such other information with regard to its
         affairs as the Adviser or Board of Trustees may reasonably request.

         The Sub-Adviser shall keep the books and records relating to the
         Assets required to be maintained by the Sub-Adviser under this
         Agreement and shall timely furnish to the Adviser all information
         relating to the Sub-Adviser's services under this Agreement needed by
         the Adviser to keep the other books and records of the Portfolio
         required by Rule 31a-1 under the 1940 Act.  The Sub-Adviser shall also
         furnish to the Adviser any other information relating to the Assets
         that is required to be filed by the Adviser or the Trust with the SEC
         or sent to shareholders under the 1940 Act (including the rules
         adopted thereunder) or any exemptive or other relief that the Adviser
         or the Trust obtains from the SEC.  The Sub-Adviser agrees that all
         records that it maintains on behalf of the Portfolio are property of
         the Portfolio and the Sub-Adviser will surrender promptly to the
         Portfolio any of such records upon the Portfolio's request; provided,
         however, that the Sub-Adviser may retain a copy of such records.  In
         addition, for the duration of this Agreement, the  Sub-Adviser shall
         preserve for the periods prescribed by Rule  31a-2 under the 1940 Act
         any such records as are required to be maintained by it pursuant to
         this Agreement, and shall transfer said records to any successor
         sub-adviser upon the termination of this Agreement (or, if there is no
         successor sub-adviser, to the Adviser).

(e)      The Sub-Adviser shall provide the Portfolio's custodian on each
         business day with information relating to all transactions concerning
         the Portfolio's Assets and shall provide the Adviser with such
         information upon request of the Adviser.

(f)      The investment management services provided by the Sub-Adviser under
         this Agreement are not to be deemed exclusive and the Sub-Adviser
         shall be free to render similar services to others, as long as such
         services do not impair the services rendered to the Adviser or the
         Trust.

(g)      The Sub-Adviser shall promptly notify the Adviser of any financial
         condition that is likely to impair the Sub-Adviser's ability to
         fulfill its commitment under this Agreement.



                                      2

<PAGE>   3


(h)      The Sub-Adviser shall review all proxy solicitation materials and be
         responsible for voting and handling all proxies in relation to the
         securities held in the Portfolio.  The Adviser shall instruct the
         custodian and other parties providing services to the Portfolio to
         promptly forward misdirected proxies to the Sub-Adviser.

         Services to be furnished by the Sub-Adviser under this Agreement may
         be furnished through the medium of any of the Sub-Adviser's partners,
         officers or employees.

2.       DUTIES OF THE ADVISER.  The Adviser shall continue to have
         responsibility for all services to be provided to the Portfolio
         pursuant to the Advisory Agreement and shall oversee and review the
         Sub-Adviser's performance of its duties under this Agreement;
         provided, however, that in connection with its management of the
         Assets, nothing herein shall be construed to relieve the Sub-Adviser
         of responsibility for compliance with the Trust's Declaration of Trust
         (as defined herein), the Prospectus, the instructions and directions
         of the Board of Trustees of the Trust, the requirements of the 1940
         Act, the Internal Revenue Code of 1986, and all other applicable
         federal and state laws and regulations, as each is amended from time
         to time.

3.       DELIVERY OF DOCUMENTS.  The Adviser has furnished the Sub-Adviser with
         copies properly certified or authenticated of each of the following
         documents:

(a)      The Trust's Agreement and Declaration of Trust, as filed with the
         Secretary of State of the Commonwealth of Massachusetts (such
         Agreement and Declaration of Trust, as in effect on the date of this
         Agreement and as amended from time to time, herein called the
         "Declaration of Trust");

(b)      By-Laws of the Trust (such By-Laws, as in effect on the date of this
         Agreement and as amended from time to time, are herein called the
         "By-Laws");

(c)      Prospectus(es) of the Portfolio.

4.       COMPENSATION TO THE SUB-ADVISER.  For the services to be provided by
         the Sub-Adviser pursuant to this Agreement, the Adviser will pay the
         Sub-Adviser, and the Sub-Adviser agrees to accept as full compensation
         therefor, a sub-advisory fee at the rate specified in the Schedule(s)
         which is attached hereto and made part of this Agreement.  The fee
         will be calculated based on the average monthly market value of the
         Assets under the Sub-Adviser's management and will be paid to the
         Sub-Adviser monthly.  Except as may otherwise be prohibited by law or
         regulation (including any then current SEC staff interpretation), the
         Sub-Adviser may, in its discretion and from time to time, waive a
         portion of its fee.

5.       INDEMNIFICATION.  The Sub-Adviser shall indemnify and hold harmless
         the Adviser from and against any and all claims, losses, liabilities
         or damages (including reasonable attorney's fees and other related
         expenses) howsoever arising from or in connection with the performance
         of the Sub-Adviser's obligations under this Agreement; provided,
         however, that the Sub-Adviser's obligation under this Section 5 shall
         be reduced to the extent that the claim against, or the loss,
         liability or damage experienced by the Adviser, is caused by or is
         otherwise directly related to the Adviser's own willful misfeasance,
         bad faith or negligence, or to the reckless disregard of its duties
         under this Agreement.

         The Adviser shall indemnify and hold harmless the Sub-Adviser from and
         against any and all



                                      3

<PAGE>   4

         claims, losses, liabilities or damages (including reasonable
         attorney's fees and other related expenses) howsoever arising from or
         in connection with the performance of the Adviser's obligations under
         this Agreement; provided, however, that the Adviser's obligation under
         this Section 5 shall be reduced to the extent that the claim against,
         or the loss, liability or damage experienced by the Sub-Adviser, is
         caused by or is otherwise directly related to the Sub-Adviser's own
         willful misfeasance, bad faith or negligence, or to the reckless
         disregard of its duties under this Agreement.

6.       LIMITATION OF LIABILITY OF THE SUB-ADVISER.  The Sub-Adviser shall not
         be liable for any error of judgment or for any loss suffered by the
         Adviser in connection with performance of its obligations under this
         Agreement, except a loss resulting from a breach of fiduciary duty
         with respect to the receipt of compensation for services (in which
         case any award of damages shall be limited to the period and the
         amount set forth in Section 36(b)(3) of the 1940 Act), or a loss
         resulting from willful misfeasance, bad faith or negligence on the
         Sub-Adviser's part in the performance of its duties or from reckless
         disregard of its obligations and duties under this Agreement, except
         as may otherwise be provided under provisions of applicable state law
         which cannot be waived or modified hereby.

7.       DURATION AND TERMINATION.  This Agreement shall become effective upon
         its approval by the Trust's Board of Trustees and by the vote of a
         majority of the outstanding voting securities of the Portfolio.  This
         Agreement shall continue in effect for a period of more than two years
         from the date hereof only so long as continuance is specifically
         approved at least annually in conformance with the 1940 Act; provided,
         however, that this Agreement may be terminated with respect to the
         Portfolio (a) by the Portfolio at any time, without the payment of any
         penalty, by the vote of a majority of Trustees of the Trust or by the
         vote of a majority of the outstanding voting securities of the
         Portfolio, (b) by the Adviser at any time, without the payment of any
         penalty, on not more than 60 days' nor less than 30 days' written
         notice to the Sub-Adviser, or (c) by the Sub-Adviser at any time,
         without the payment of any penalty, on 90 days' written notice to the
         Adviser.  This Agreement shall terminate automatically and immediately
         in the event of its assignment, or in the event of a termination of
         the Adviser's agreement with the Trust.  As used in this Section 7,
         the terms "assignment" and "vote of a majority of the outstanding
         voting securities" shall have the respective meanings set forth in the
         1940 Act and the rules and regulations thereunder, subject to such
         exceptions as may be granted by the SEC under the 1940 Act.

8.       GOVERNING LAW.  This Agreement shall be governed by the internal laws
         of the Commonwealth of Massachusetts, without regard to conflict of
         law principles; provided, however, that nothing herein shall be
         construed as being inconsistent with the 1940 Act.

9.       SEVERABILITY.  Should any part of this Agreement be held invalid by a
         court decision, statute, rule or otherwise, the remainder of this
         Agreement shall not be affected thereby.  This Agreement shall be
         binding upon and shall inure to the benefit of the parties hereto and
         their respective successors.

10.      NOTICE:  Any notice, advice or report to be given pursuant to this
         Agreement shall be deemed sufficient if delivered or mailed by
         registered, certified or overnight mail, postage prepaid addressed by
         the party giving notice to the other party at the last address
         furnished by the other party:




                                      4
<PAGE>   5


         To the Adviser at:                 SEI Financial Management Corporation
                                            680 East Swedesford Road
                                            Wayne, PA 19087
                                            Attention:  Legal Department
                                            
         To the Sub-Adviser at:             Western Asset Management Company
                                            117 East Colorado Boulevard
                                            Pasadena, California 91105
                                            Attention: Ilene S. Harker, Director

11.      ENTIRE AGREEMENT.  This Agreement embodies the entire agreement and
         understanding between the parties hereto, and supersedes all prior
         agreements and understandings relating to this Agreement's subject
         matter.  This Agreement may be executed in any number of counterparts,
         each of which shall be deemed to be an original, but such counterparts
         shall, together, constitute only one instrument.

         A copy of the Declaration of Trust is on file with the Secretary of
State of the Commonwealth of Massachusetts, and notice is hereby given that the
obligations of this instrument are not binding upon any of the Trustees,
officers or shareholders of the Portfolio or the Trust.

         Where the effect of a requirement of the 1940 Act reflected in any
provision of this Agreement is altered by a rule, regulation or order of the
SEC, whether of special or general application, such provision shall be deemed
to incorporate the effect of such rule, regulation or order.

         IN WITNESS WHEREOF, the parties hereto have caused this Agreement to
be executed by their officers designated below as of the day and year first
written above.

SEI Financial Management Corporation           Western Asset Management Company
By:                                            By:  
     -----------------------------                 ----------------------------

Name:  Robert B. Carroll                       Name: Ilene S. Harker        
      ----------------------------                   --------------------------
Title:  Vice President                         Title:  Director




                                      5


<PAGE>   6

                                 SCHEDULE A
                                   TO THE
                           SUB-ADVISORY AGREEMENT
                                   BETWEEN
                    SEI FINANCIAL MANAGEMENT CORPORATION
                                     AND
                      WESTERN ASSET MANAGEMENT COMPANY



Pursuant to Article 4, the Adviser shall pay the Sub-Adviser compensation at an
annual rate as follows:

Core Fixed Income Portfolio               .125%




                                      6

<PAGE>   1
                                                                  EXHIBIT (5)(v)

                            ADMINISTRATION AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST

         THIS AGREEMENT is made as of this _____ day of __________, 1996, by
and between SEI Institutional Investments Trust, a Massachusetts business trust
(the "Trust"), and SEI Fund Management (the "Administrator"), a Delaware
corporation.

         WHEREAS, the Trust is an open-end diversified management investment
company registered under the Investment Company Act of 1940, as amended (the
"1940 Act"), consisting of several series of shares of Common Stock; and

         WHEREAS, the Trust desires the Administrator to provide, and the
Administrator is willing to provide, management and administrative services to
such portfolios of the Trust as the Trust and the Administrator may agree on
("Portfolios") and as listed on the schedules attached hereto ("Schedules") and
made a part of this Agreement, on the terms and conditions hereinafter set
forth;

         NOW, THEREFORE, in consideration of the premises and the covenants
hereinafter contained, the Trust and the Administrator hereby agree as follows:

         ARTICLE 1.  Retention of the Administrator.  The Trust hereby retains
the Administrator to act as the administrator of the Portfolios and to furnish
the Portfolios with the management and administrative services as set forth in
Article 2 below. The Administrator hereby accepts such employment to perform
the duties set forth below.

         The Administrator shall, for all purposes herein, be deemed to be an
independent contractor and, unless otherwise expressly provided or authorized,
shall have no authority to act for or represent the Trust in any way and shall
not be deemed an agent of the Trust.

         ARTICLE 2.  Administrative and Accounting Services.  The Administrator
shall perform or supervise the performance by others of other administrative
services in connection with the operations of the Portfolios, and, on behalf of
the Trust, will investigate, assist in the selection of and conduct relations
with custodians, depositories, accountants, legal counsel, underwriters,
brokers and dealers, corporate fiduciaries, insurers, banks and persons in any
other capacity deemed to be necessary or desirable for the Portfolios'
operations. The Administrator shall provide the Trustees of the Trust with such
reports regarding investment performance and compliance with investment
policies and applicable laws, rules and regulations as they may reasonably
request but shall have no responsibility for supervising the performance by any
investment adviser or sub-adviser of its responsibilities.  The Administrator
may appoint a sub-administrator to perform certain of the services to be
performed by the Administrator hereunder.

         The Administrator shall provide the Trust with administrative
services, regulatory reporting, fund accounting and related portfolio
accounting services, all necessary office space, equipment, personnel,
compensation and facilities (including facilities for Shareholders' and
Trustees' meetings) for handling the affairs of the Portfolios and such other
services as the Trustees may, from time to time, reasonably request and the
Administrator shall, from time to time, reasonably determine to be necessary to
perform its obligations under this Agreement.  In addition, at the request of
the Trust's Board of Trustees (the "Trustees"), the Administrator shall make
reports to the Trustees concerning the performance of its
<PAGE>   2
obligations hereunder.

  Without limiting the generality of the foregoing, the Administrator shall:

         (A)     calculate contractual Trust expenses and control all
                 disbursements for the Trust, and as appropriate compute the
                 Trust's yields, total return, expense ratios, portfolio
                 turnover rate and, if required, portfolio average
                 dollar-weighed maturity;

         (B)     assist Trust counsel with the preparation of prospectuses,
                 statements of additional information, registration statements,
                 and proxy materials;

         (C)     prepare such reports, applications and documents (including
                 reports regarding the sale and redemption of Shares as may be
                 required in order to comply with Federal and state securities
                 law) as may be necessary or desirable to register the Trust's
                 shares with state securities authorities, monitor sale of
                 Trust shares for compliance with state securities laws. and
                 file with the appropriate state securities authorities the
                 registration statements and reports for the Trust and the
                 Trust's shares and all amendments thereto, as may be necessary
                 or convenient to register and keep effective the Trust and the
                 Trust's shares with state securities authorities to enable the
                 Trust to make a continuous offering of its shares;

         (D)     develop and prepare communications to shareholders, including
                 the annual report to shareholders, coordinate mailing
                 prospectuses, notices,  proxy statements, proxies  and other
                 reports to Trust shareholders, and supervise and facilitate
                 the solicitation of proxies solicited by the Trust for all
                 shareholder meetings, including tabulation process for
                 shareholder meetings;

         (E)     coordinate with Trust counsel the preparation and negotiation
                 of, and administer contracts on behalf of the Trust with,
                 among others, the Trust's investment adviser, distributor,
                 custodian, and transfer agent;

         (F)     maintain the Trust's general ledger and prepare the Trust's
                 financial statements, including expense accruals and payments,
                 determine the net asset value of the Trust's assets and of the
                 Trust's shares, and supervise the Trust's transfer agent with
                 respect to the payment of dividends and other distributions to
                 shareholders;

         (G)     calculate performance data of the Trust and its portfolios for
                 dissemination to information services covering the investment
                 company industry;

         (H)     coordinate and supervise the preparation and filing of the
                 Trust's tax returns;

         (I)     examine and review the operations and performance of the
                 various organizations providing services to the Trust or any
                 Portfolio of the Trust, including, without limitation, the
                 Trust's investment adviser, distributor, custodian, transfer
                 agent, outside legal counsel and independent public
                 accountants, and at the request of the Trustees, report to the
                 Trustees on the performance of organizations;





<PAGE>   3
         (J)     assist with the layout and printing of publicly disseminated
                 prospectuses and assist with and coordinate layout and
                 printing of the Trust's semi-annual and annual reports to
                 shareholders;

         (K)     provide internal legal and administrative services as
                 requested by the Trust from time to time;

         (L)     assist with the design, development, and operation of the
                 Trust, including new portfolio and class investment
                 objectives, policies and structure;

         (M)     provide individuals acceptable to the Trustees for nomination,
                 appointment, or election as officers of the Trust, who will be
                 responsible for the management of certain of the Trust's
                 affairs as determined by the Trustees;

         (N)     advise the Trust and its Trustees on matters concerning the 
                 Trust and its affairs;

         (O)     obtain and keep in effect fidelity bonds and directors and
                 officers/errors and omissions insurance policies for the Trust
                 in accordance with the requirements of Rules 17g-1 and
                 17d-1(7) under the 1940 Act as such bonds and policies are
                 approved by the Trust's Board of Trustees;

         (P)     monitor and advise the Trust and its Portfolios on their
                 registered investment company status under the Internal
                 Revenue Code of 1986, as amended;

         (Q)     perform all administrative services and functions of the Trust
                 and each Portfolio to the extent administrative services and
                 functions are not provided to the Trust or such Portfolio
                 pursuant to the Trust's or such Portfolio's investment
                 advisory agreement, distribution agreement, custodian
                 agreement and transfer agent agreement;

         (R)     furnish advice and recommendations with respect to other
                 aspects of the business and affairs of the Portfolios as the
                 Trust and the Administrator shall determine desirable; and

         (S)     prepare and file with the SEC the semi-annual report for the
                 Trust on Form N-SAR and all required notices pursuant to Rule
                 24f-2.

Also, the Administrator will perform other services for the Trust as agreed
from time to time, including, but not limited to performing internal audit
examinations; mailing the annual reports of the Portfolios; preparing an annual
list of shareholders; and mailing notices of shareholders' meetings, proxies
and proxy statements, for all of which the Trust will pay the Administrator's
out-of-pocket expenses.

         ARTICLE 3.       Allocation of Charges and Expenses.

         (A)     The Administrator.  The Administrator shall furnish at its own
expense the executive, supervisory and clerical personnel necessary to perform
its obligations under this Agreement. The Administrator shall also provide the
items which it is obligated to provide under this Agreement, and shall pay all
compensation, if any, of officers of the Trust as well as all Trustees of the
Trust who are affiliated




<PAGE>   4
persons of the Administrator or any affiliated corporation of the
Administrator; provided, however, that unless otherwise specifically provided,
the Administrator shall not be obligated to pay the compensation of any
employee of the Trust retained by the Trustees of the Trust to perform services
on behalf of the Trust.

         (B)     The Trust.  The Trust assumes and shall pay or cause to be
paid all other expenses of the Trust not otherwise allocated herein, including,
without limitation, organizational costs, taxes, expenses for legal and
auditing services, the expenses of preparing (including typesetting), printing
and mailing reports, prospectuses, statements of additional information, proxy
solicitation material and notices to existing Shareholders, all expenses
incurred in connection with issuing and redeeming Shares, the costs of
custodial services, the cost of initial and ongoing registration of the Shares
under Federal and state securities laws, fees and out-of-pocket expenses of
Trustees who are not affiliated persons of the Administrator or the investment
adviser to the Trust or any affiliated corporation of the Administrator or the
investment Adviser, the costs of Trustees  meetings, insurance, interest,
brokerage costs, litigation and other extraordinary or nonrecurring expenses,
and all fees and charges of investment advisers to the Trust.

         ARTICLE 4.       Compensation of the Administrator.

         (A)     Administration Fee.  For the services to be rendered, the
facilities furnished and the expenses assumed by the Administrator pursuant to
this Agreement, the Trust shall pay to the Administrator compensation at an
annual rate specified in the Schedules. Such compensation shall be calculated
and accrued daily, and paid to the Administrator monthly.

         If this Agreement becomes effective subsequent to the first day of a
month or terminates before the last day of a month, the Administrator's
compensation for that part of the month in which this Agreement is in effect
shall be prorated in a manner consistent with the calculation of the fees as
set forth above. Payment of the Administrator's compensation for the preceding
month shall be made promptly.

         (B)     Compensation from Transactions.  The Trust hereby authorizes
any entity or person associated with the Administrator which is a member of a
national securities exchange to effect any transaction on the exchange for the
account of the Trust which is permitted by Section 11(a) of the Securities
Exchange Act of 1934 and Rule 11a2-2(T) thereunder, and the Trust hereby
consents to the retention of compensation for such transactions in accordance
with Rule 11a2-2(T)(a)(2)(iv).

         (C)     Survival of Compensation Rates.  All rights of compensation
under this Agreement for services performed as of the termination date shall
survive the termination of this Agreement.

         ARTICLE 5.       Limitation of Liability of the Administrator.  The
duties of the Administrator shall be confined to those expressly set forth
herein, and no implied duties are assumed by or may be asserted against the
Administrator hereunder. The Administrator shall not be liable for any error of
judgment or mistake of law or for any loss arising out of any investment or for
any act or omission in carrying out its duties hereunder, except a loss
resulting from willful misfeasance, bad faith or negligence in the performance
of its duties, or by reason of reckless disregard of its obligations and duties
hereunder, except as may otherwise be provided under provisions of applicable
law which cannot be waived or modified hereby. (As used in this Article 5, the
term "Administrator" shall include directors, officers, employees and other
agents of the Administrator as well as that corporation itself..)





<PAGE>   5
         So long as the Administrator, or its agents, acts in good faith and
with due diligence and without  negligence, the Trust assumes full
responsibility and shall indemnify the Administrator and hold it harmless from
and against any and all actions, suits and claims, whether groundless or
otherwise, and from and against any and all losses, damages, costs, charges,
reasonable counsel fees and disbursements, payments, expenses and liabilities
(including reasonable investigation expenses) arising directly or indirectly
out of said administration, transfer agency, and dividend disbursing
relationships to the Trust or any other service rendered to the Trust
hereunder. The indemnity and defense provisions set forth herein shall
indefinitely survive the termination of this Agreement.

         The rights hereunder shall include the right to reasonable advances of
defense expenses in the event of any pending or threatened litigation with
respect to which indemnification hereunder may ultimately be merited. In order
that the indemnification provision contained herein shall apply, however, it is
understood that if in any case the Trust may be asked to indemnify or hold the
Administrator harmless, the Trust shall be fully and promptly advised of all
pertinent facts concerning the situation in question, and it is further
understood that the Administrator will use all reasonable care to identify and
notify the Trust promptly concerning any situation which presents or appears
likely to present the probability of such a claim for indemnification against
the Trust, but failure to do so in good faith shall not affect the rights
hereunder.

         The Trust shall be entitled to participate at its own expense or, if
it so elects, to assume the defense of any suit brought to enforce any claims
subject to this indemnity provision.  If the Trust elects to assume the defense
of any such claim, the defense shall be conducted by counsel chosen by the
Trust and satisfactory to the Administrator, whose approval shall not be
unreasonably withheld.  In the event that the Trust elects to assume the
defense of any suit and retain counsel, the Administrator shall bear the fees
and expenses of any additional counsel retained by it.  If the Trust does not
elect to assume the defense of a suit, it will reimburse the Administrator for
the reasonable fees and expenses of any counsel retained by the Administrator.

         The Administrator may apply to the Trust at any time for instructions
and may consult counsel for the Trust or its own counsel and with accountants
and other experts with respect to any matter arising in connection with the
Administrator's duties, and the Administrator shall not be liable or
accountable for any action taken or omitted by it in good faith in accordance
with such instruction or with the opinion of such counsel, accountants or other
experts.

         Also, the Administrator shall be protected in acting upon any document
which it reasonably believes to be genuine and to have been signed or presented
by the proper person or persons. Nor shall the Administrator be held to have
notice of any change of authority of any officers, employee or agent of the
Trust until receipt of written notice thereof from the Trust.

         ARTICLE 6.       Activities of the Administrator.  The services of the
Administrator rendered to the Trust are not to be deemed to be exclusive. The
Administrator is free to render such services to others and to have other
businesses and interests. It is understood that Trustees, officers, employees
and Shareholders of the Trust are or may be or become interested in the
Administrator, as directors, officers, employees and shareholders or otherwise
and that directors, officers, employees and shareholders of the Administrator
and its counsel are or may be or become similarly interested in the Trust, and
that the Administrator may be or become interested in the Trust as a
Shareholder or otherwise.





<PAGE>   6
         ARTICLE 7.   Confidentiality.  The Administrator agrees on behalf
of itself and its employees to treat confidentially all records and other
information relative to the Trust and its prior, present or potential
Shareholders and relative to the Adviser and its prior, present or potential
customers, except, after prior notification to and approval in writing by the
Trust, which approval shall not be unreasonably withheld and may not be
withheld where the Administrator may be exposed to civil or criminal contempt
proceedings for failure to comply, when requested to divulge such information
by duly constituted authorities, or when so requested by the Trust.

         ARTICLE 8.   Equipment Failures.  In the event of equipment
failures beyond the Administrator's control, the Administrator shall, at no
additional expense to the Trust, take reasonable steps to minimize service
interruptions but shall have no liability with respect thereto.  The
Administrator shall develop and maintain a plan for recovery from equipment
failures which may include contractual arrangements with appropriate parties
making reasonable provision for emergency use of electronic data processing
equipment to the extent appropriate equipment is available.

         ARTICLE 9.   Compliance With Governmental Rules and Regulations.
The Administrator undertakes to comply with all applicable requirements of the
1933 Act, the 1934 Act, the 1940 Act and any laws, rules and regulations of
governmental authorities having jurisdiction with respect to the duties to be
performed by the Administrator hereunder.

         ARTICLE 10.  Duration and Termination of this Agreement.  This
Agreement shall become effective on the date set forth in the Schedules and
shall remain in effect for the initial term of the Agreement (the "Initial
Term") and each renewal term thereof (each, a "Renewal Term"), each as set
forth in the Schedules, unless terminated in accordance with the provisions of
this Article 10.  This Agreement may be terminated only:  (a) by the mutual
written agreement of the parties; (b) by either party hereto on 90 days
written notice, as of the end of the Initial Term or the end of any Renewal
Term; (c) by either party hereto on such date as is specified in written notice
given by the terminating party, in the event of a material breach of this
Agreement by the other party, provided the terminating party has notified the
other party of such breach at least 45 days prior to the specified date of
termination and the breaching party has not remedied such breach by the
specified date; (d) effective upon the liquidation of the Administrator; or (e)
as to any Portfolio or the Trust, effective upon the liquidation of such
Portfolio or the Trust, as the case may be.  For purposes of this Article 10,
the term "liquidation" shall mean a transaction in which the assets of the
Administrator, the Trust or a Portfolio are sold or otherwise disposed of and
proceeds therefrom are distributed in cash to the shareholders in complete
liquidation of the interests of such shareholders in the entity.

         This Agreement shall not be assignable by the Administrator, without
the prior written consent of the Trust, except to an entity that is controlled
by, or under common control, with, the Administrator.

         ARTICLE 11.  Amendments.  This Agreement or any part hereof may be
changed or waived only by an instrument in writing signed by the party against
which enforcement of such change or waiver is sought.

         ARTICLE 12.  Certain Records.  The Administrator shall maintain
customary records in connection with its duties as specified in this Agreement.
Any records required to be maintained and preserved pursuant to Rules 31a-1 and
31a-2 under the 1940 Act which are prepared or maintained by the





<PAGE>   7
Administrator on behalf of the Trust shall be prepared and maintained at the
expense of the Administrator, but shall be the property of the Trust and will
be made available to or surrendered promptly to the Trust on request.

         In case of any request or demand for the inspection of such records by
another party, the Administrator shall notify the Trust and follow the Trust's
instructions as to permitting or refusing such inspection; provided that the
Administrator may exhibit such records to any person in any case where it is
advised by its counsel that it may be held liable for failure to do so, unless
(in cases involving potential exposure only to civil liability) the Trust has
agreed to indemnify the Administrator against such liability.

         ARTICLE 13.  Definitions of Certain Terms.  The terms "interested
person" and "affiliated person," when used in this Agreement, shall have the
respective meanings specified in the 1940 Act and the rules and regulations
thereunder, subject to such exemptions as may be granted by the Securities and
Exchange Commission.

         ARTICLE 14.  Notice.  Any notice required or permitted to be given by
either party to the other shall be deemed sufficient if sent by registered or
certified mail, postage prepaid, addressed by the party giving notice to the
other party at the last address furnished by the other party to the party
giving notice: if to the Trust, at c/o Kevin P. Robins, General Counsel, SEI
Fund Management, 680 East Swedesford Road, Wayne, PA 19087; and if to the
Administrator at 680 East Swedesford Road, Wayne, PA 19087-1658.

         ARTICLE 15.  Governing Law.  This Agreement shall be construed in
accordance with the laws of the Commonwealth of Massachusetts and the
applicable provisions of the 1940 Act. To the extent that the applicable laws
of the Commonwealth of Massachusetts, or any of the provisions herein, conflict
with the applicable provisions of the 1940 Act, the latter shall control.

         ARTICLE 16. Multiple Originals.  This Agreement may be executed in two
or more counterparts, each of which when so executed shall be deemed to be an
original, but such counterparts shall together constitute but one and the same
instrument.

         ARTICLE 17.    Limitation of Liability.  The Administrator is hereby
expressly put on notice of the limitation of liability as set forth in Article
XI of the Trust's Declaration of Trust and agrees that the obligations pursuant
to this Agreement of a particular Portfolio and of the Trust with respect to
that Portfolio shall be limited solely to the assets of that Portfolio, and the
Administrator shall not seek satisfaction of any such obligation from any other
Portfolio, the shareholders of any Portfolio, the Trustees, officers, employees
or agents of the Trust, or any of them.





<PAGE>   8
         ARTICLE 18.  Binding Agreement.  This Agreement, and the rights and
obligations of the parties and the Portfolios hereunder, shall be binding on,
and inure to the benefit of, the parties and the Portfolios and the respective
successors and assigns of each of them.

         IN WITNESS WHEREOF, the parties hereto have executed and delivered
this Agreement as of the day and year first above written.

SEI INSTITUTIONAL INVESTMENTS TRUST

By:      
         -------------------------

Attest:  
         -------------------------

SEI FUND MANAGEMENT

By:      
         -------------------------

Attest:  
         -------------------------





<PAGE>   9
                                    SCHEDULE
                        TO THE ADMINISTRATION AGREEMENT
                           DATED AS OF APRIL 1, 1996
                                    BETWEEN
                      SEI INSTITUTIONAL INVESTMENTS TRUST
                                      AND
                              SEI FUND MANAGEMENT

Portfolios:      This Agreement shall apply to all Portfolios of the Trust,
                 either now in the future created.  The following is a listing
                 of the current portfolios of the Trust: Large Cap, Small Cap,
                 Core Fixed Income, High Yield Bond, International Fixed
                 Income, Emerging Markets Equity and International Equity Funds
                 (collectively, the "Portfolios").

Fees:            Pursuant to Article 4, Section A, the Trust shall pay the
                 Administrator compensation for services rendered to the
                 Portfolios at an annual rate, which is calculated daily and
                 paid monthly, at a maximum administrative fee equal to .05% of
                 each Portfolios' average daily net assets.

Term:            This Agreement shall become effective on ________, 1996, and
                 shall remain in effect for an Initial Term of two (2) years
                 from such date and, thereafter, for successive Renewal Terms
                 of one (1) year each, unless and until this Agreement is
                 terminated in accordance with the provisions of Article 10
                 hereof.






<PAGE>   1
                                                                     EXHIBIT 6

                           DISTRIBUTION AGREEMENT
                     SEI INSTITUTIONAL INVESTMENTS TRUST

         THIS AGREEMENT is made as of this _____ day of __________, 1996
between SEI Institutional Investments Trust (the "Trust"), a Massachusetts
business trust, and SEI Financial Services Company (the "Distributor"), a
Pennsylvania corporation.

         WHEREAS, the Trust is registered as an investment company with the
Securities and Exchange Commission (the "SEC") under the Investment Company Act
of 1940, as amended (the "1940 Act"), and its shares are registered with the
SEC under the Securities Act of 1933, as amended (the "1933 Act"); and

         WHEREAS, the Distributor is registered as a broker-dealer with the SEC
under the Securities Exchange Act of 1934, as amended;

         NOW, THEREFORE, in consideration of the mutual covenants hereinafter
contained, the Trust and the Distributor hereby agree as follows:

         ARTICLE 1. Sale of Shares.  The Trust grants to the Distributor the
exclusive right to sell shares (the "Shares") of the portfolios (the
"Portfolios") of the Trust at the net asset value per Share, plus any
applicable sales charge in accordance with the Trust's current prospectuses, as
agent and on behalf of the Trust, during the term of this Agreement and subject
to the registration requirements of the 1933 Act, the rules and regulations of
the SEC and the laws governing the sale of securities in the various states
(the "Blue Sky Laws").

         ARTICLE 2. Solicitation of Sales.  In consideration of these rights
granted to the Distributor, the Distributor agrees to use all reasonable
efforts, consistent with its other business, in connection with the
distribution of the Shares of the Trust; provided, however, that the
Distributor shall not be prevented from entering into like arrangements with
other issuers. The provisions of this paragraph do not obligate the Distributor
to register as a broker or dealer under the Blue Sky Laws of any jurisdiction
when it determines it would be uneconomical for it to do so or to maintain its
registration in any jurisdiction in which it is now registered nor obligate the
Distributor to sell any particular number of Shares.

         ARTICLE 3. Compensation.  As compensation for providing the services
under this Agreement:

         (a)     The Distributor shall receive from the Trust:

                 (1)  all distribution and service fees, as applicable, at the
                 rate and under the terms and conditions set forth in each
                 Distribution and Service Plan adopted by the appropriate class
                 of Shares of each of the Portfolios, as such Plans may be
                 amended from time to time, and subject to any further
                 limitations on such fees as the Board of Directors of the
                 Trust may impose;

                 (2)  all contingent deferred sales charges ("CDSC") applied on
                 redemptions of CDSC Class Shares, as applicable, of each
                 Portfolio on the terms and subject to such waivers as are
                 described in the Trust's Registration Statement and current
                 prospectuses, as amended from time to time, or as otherwise
                 required pursuant to applicable law; and

                 (3)  all front-end sales charges, as applicable, on purchases
                 of front-end load Shares of each Portfolio sold subject to
                 such charges as described in the Trust's Registration
                 Statement and current prospectuses, as amended from time to
                 time.  The Distributor, or brokers, dealers and other
                 financial institutions and intermediaries that have entered
                 into sub-distribution agreements with the Distributor, may
                 collect the gross proceeds derived from the sale of such
                 front-end load Shares, remit the net asset value thereof to
                 the Trust upon receipt of the proceeds and retain the
                 applicable sales charge.

         (b)     The Distributor may reallow any or all of the distribution or
         service fees, CDSC and front-end sales charges which it is paid by the
         Trust to such brokers, dealers and other financial institutions and
         intermediaries as the Distributor may from time to time determine.

         (c)     The Distributor may transfer its right to the payments
         described in this Article 3 to third persons who provide Trusting to
         the Distributor, provided that any such transfer shall not be deemed a
         transfer of the Distributor's obligations under this Agreement.  Upon
         receipt of direction from the Distributor to pay such fees to a
         transferee, the Trust shall make payment in accordance with such
         direction.

         ARTICLE 4. Authorized Representations. The Distributor is not
authorized by the Trust to give any information or to make any representations
other than those contained in the current registration statements and
prospectuses of the Trust filed with the SEC or contained in Shareholder
reports or other material that may be prepared by or on behalf of the Trust for
the Distributor's use. The Distributor may prepare and distribute sales
literature and other material as it may deem appropriate, provided that such
literature and
<PAGE>   2

materials have been prepared in accordance with applicable rules and
regulations.

         ARTICLE 5. Registration of Shares.  The Trust agrees that it will take
all action necessary to register Shares under the federal and state securities
laws so that there will be available for sale the number of Shares the
Distributor may reasonably be expected to sell and to pay all fees associated
with said registration.  The Trust shall make available to the Distributor such
number of copies of its currently effective prospectuses and statement of
additional information as the Distributor may reasonably request.  The Trust
shall furnish to the Distributor copies of all information, financial
statements and other papers which the Distributor may reasonably request for
use in connection with the distribution of Shares of the Trust.

         ARTICLE 6. Indemnification of Distributor.  The Trust agrees to
indemnify and hold harmless the Distributor and each of its directors and
officers and each person, if any, who controls the Distributor within the
meaning of Section 15 of the 1933 Act against any loss, liability, claim,
damages or expense (including the reasonable cost of investigating or defending
any alleged loss, liability, claim, damages, or expense and reasonable counsel
fees and disbursements incurred in connection therewith), arising by reason of
any person acquiring any Shares, based upon the ground that the registration
statement, prospectus, Shareholder reports or other information filed or made
public by the Trust (as from time to time amended) included an untrue statement
of a material fact or omitted to state a material fact required to be stated or
necessary in order to make the statements made not misleading. However, the
Trust does not agree to indemnify the Distributor or hold it harmless to the
extent that the statements or omission was made in reliance upon, and in
conformity with, information furnished to the Trust by or on behalf of the
Distributor.

         In no case (i) is the indemnity of the Trust to be deemed to protect
the Distributor against any liability to the Trust or its Shareholders to which
the Distributor or such person otherwise would be subject by reason of willful
misfeasance, bad faith or negligence in the performance of its duties or by
reason of its reckless disregard of its obligations and duties under this
Agreement, or (ii) is the Trust to be liable to the Distributor under the
indemnity agreement contained in this paragraph with respect to any claim made
against the Distributor or any person indemnified unless the Distributor or
other person shall have notified the Trust in writing of the claim within a
reasonable time after the summons or other first written notification giving
information of the nature of the claim shall have been served upon the
Distributor or such other person (or after the Distributor or the person shall
have received notice of service on any designated agent). However, failure to
notify the Trust of any claim shall not relieve the Trust from any liability
which it may have to the Distributor or any person against whom such action is
brought otherwise than on account of its indemnity agreement contained in this
paragraph.

         The Trust shall be entitled to participate at its own expense in the
defense or, if it so elects, to assume the defense of any suit brought to
enforce any claims subject to this indemnity provision.  If the Trust elects to
assume the defense of any such claim, the defense shall be conducted by counsel
chosen by the Trust and satisfactory to the indemnified defendants in the suit
whose approval shall not be unreasonably withheld.  In the event that the Trust
elects to assume the defense of any suit and retain counsel, the indemnified
defendants shall bear the fees and expenses of any additional counsel retained
by them.  If the Trust does not elect to assume the defense of a suit, it will
reimburse the indemnified defendants for the reasonable fees and expenses of
any counsel retained by the indemnified defendants.

         The Trust agrees to notify the Distributor promptly of the
commencement of any litigation or proceedings against it or any of its officers
or Directors in connection with the issuance or sale of any of its Shares.

         ARTICLE 7. Indemnification of Trust.  The Distributor covenants and
agrees that it will indemnify and hold harmless the Trust and each of its
Directors and officers and each person, if any, who controls the Trust within
the meaning of Section 15 of the Act, against any loss, liability, damages,
claim or expense (including the reasonable cost of investigating or defending
any alleged loss, liability, damages, claim or expense and reasonable counsel
fees incurred in connection therewith) based upon the 1933 Act or any other
statute or common law and arising by reason of any person acquiring any Shares,
and alleging a wrongful act of the Distributor or any of its employees or
alleging that the registration statement, prospectus, Shareholder reports or
other information filed or made public by the Trust (as from time to time
amended) included an untrue statement of a material fact or omitted to state a
material fact required to be stated or necessary in order to make the
statements not misleading, insofar as the statement or omission was made in
reliance upon and in conformity with information furnished to the Trust by or
on behalf of the Distributor.

         In no case (i) is the indemnity of the Distributor in favor of the
Trust or any other person indemnified to be deemed to protect the Trust or any
other person against any liability to which the Trust or such other person
would otherwise be subject by reason of willful misfeasance, bad faith or
negligence in the performance of its duties or by reason of its reckless
disregard of its obligations and duties under this Agreement, or (ii) is the
Distributor to be liable under its indemnity agreement contained in this
paragraph with respect to any claim made against the Trust or any person
indemnified unless the Trust or person, as the case may be, shall have notified
the Distributor in writing of the claim within a reasonable time after the
summons or other first written notification giving information of the nature of
the claim shall have been served upon the Trust or upon any person (or after
the Trust or such person shall have received notice of service on any
designated agent).  However, failure to notify the Distributor of any claim
shall not relieve the Distributor from any liability which it may have to the
Trust or any person against whom the action is brought otherwise than on
account of its indemnity agreement contained in this paragraph.




                                      2
<PAGE>   3

         The Distributor shall be entitled to participate, at its own expense,
in the defense or, if it so elects, to assume the defense of any suit brought
to enforce the claim, but if the Distributor elects to assume the defense, the
defense shall be conducted by counsel chosen by the Distributor and
satisfactory to the indemnified defendants whose approval shall not be
unreasonably withheld. In the event that the Distributor elects to assume the
defense of any suit and retain counsel, the defendants in the suit shall bear
the fees and expenses of any additional counsel retained by them. If the
Distributor does not elect to assume the defense of any suit, it will reimburse
the indemnified defendants in the suit for the reasonable fees and expenses of
any counsel retained by them.

         The Distributor agrees to notify the Trust promptly of the
commencement of any litigation or proceedings against it in connection with the
issue and sale of any of the Trust's Shares.

         ARTICLE 8. Effective Date.  This Agreement shall be effective upon its
execution, and unless terminated as provided, shall continue in force for one
year from the effective date and thereafter from year to year, provided that
such annual continuance is approved by (i) either the vote of a majority of the
Directors of the Trust, or the vote of a majority of the outstanding voting
securities of the Trust, and (ii) the vote of a majority of those Directors of
the Trust who are not parties to this Agreement or the Trust's Distribution
Plan or interested persons of any such party ("Qualified Directors"), cast in
person at a meeting called for the purpose of voting on the approval.  This
Agreement shall automatically terminate in the event of its assignment. As used
in this paragraph the terms "vote of a majority of the outstanding voting
securities", "assignment" and "interested person" shall have the respective
meanings specified in the 1940 Act. In addition, this Agreement may at any time
be terminated without penalty by the Distributor,  by a vote of a majority of
Qualified Directors or by vote of a majority of the outstanding voting
securities of the Trust upon not less than sixty days prior written notice to
the other party.

         ARTICLE 9. Notices.  Any notice required or permitted to be given by
either party to the other shall be deemed sufficient if sent by registered or
certified mail, postage prepaid, addressed by the party giving notice to the
other party at the last address furnished by the other party to the party
giving notice: if to the Trust, at 680 East Swedesford Road, Wayne,
Pennsylvania, and if to the Distributor, at 680 East Swedesford Road, Wayne,
Pennsylvania 19087.

         ARTICLE 10.  Limitation of Liability.  A copy of the Articles of
Incorporation of the  Trust is on file with the Secretary of State of Maryland,
and notice is hereby given that this Agreement is executed on behalf of the
Directors of the Trust as Directors and not individually and that the
obligations of this instrument are not binding upon any of the Directors,
officers or shareholders of the Trust individually but binding only upon the
assets and property of the Trust.

         ARTICLE 11.  Governing Law.  This Agreement shall be construed in
accordance with the laws of the state of Maryland and the applicable provisions
of the 1940 Act.  To the extent that the applicable laws of the state of
Maryland, or any of the provisions herein, conflict with the applicable
provisions of the 1940 Act, the latter shall control.

         ARTICLE 12.  Multiple Originals.  This Agreement may be executed in
two or more counterparts, each of which when so executed shall be deemed to be
an original, but such counterparts shall together constitute but one and the
same instrument.

         IN WITNESS, the Trust and Distributor have each duly executed this
Agreement, as of the day and year above written.


                                           SEI INSTITUTIONAL INVESTMENTS TRUST

                                           By:
                                              ---------------------------------
                                           Attest:
                                                  -----------------------------

                                           SEI FINANCIAL SERVICES COMPANY

                                           By:
                                              ---------------------------------
                                           Attest:
                                                  -----------------------------


                                      3


<PAGE>   1
                                                                  EXHIBIT 8(a)

                              CUSTODIAN AGREEMENT
                      SEI INSTITUTIONAL INVESTMENTS TRUST


         This Agreement, dated as of the _____ day of __________, 1996 by and
between SEI Institutional Investments Trust (the "Trust"), a business trust
duly organized under the laws of the Commonwealth of Massachusetts and
CoreStates Bank, N.A. (the "Bank").

                                  WITNESSETH:

         WHEREAS, the Trust desires to appoint the Bank to act as Custodian of
its portfolio securities, cash and other property from time to time deposited
with or collected by the Bank for the Trust;

         WHEREAS, the Bank is qualified and authorized to act as Custodian for
the Trust and the separate series thereof (each a "Fund" and, collectively, the
"Funds"), and is willing to act in such capacity upon the terms and conditions
herein set forth;

         NOW, THEREFORE, in consideration of the premises and of the mutual
covenants herein contained, the parties hereto, intending to be legally bound,
do hereby agree as follows:

S1.  The terms as defined in this Section wherever used in this Agreement, or
in any amendment or supplement hereto, shall have meanings herein specified
unless the context otherwise requires.

CUSTODIAN:  The term Custodian shall mean the Bank in its capacity as Custodian
under this Agreement.

DEPOSITORY:  The term Depository means any depository service which acts as a
system for the central handling of securities where all securities of any
particular class or series of an issuer deposited within the system are treated
as fungible and may be transferred by bookkeeping entry without physical
delivery.

PROPER INSTRUCTIONS.  For purposes of this Agreement, the Custodian shall be
deemed to have received Proper Instructions upon receipt of written (including
instructions received by means of computer terminals or facsimile
transmissions), telephone or telegraphic instructions from a person or persons
authorized from time to time by the Trustees of the Trust to give the
particular class of instructions.  Telephone or telegraphic instructions shall
be confirmed in writing by such person or persons as said Trustees shall have
from time to time authorized to give the particular class of instructions in
question.  The Custodian may act upon telephone or telegraphic




                                    - 1 -
<PAGE>   2

instructions without awaiting receipt of written confirmation, and shall not be
liable for the Trust's failure to confirm such instructions in writing.

SECURITIES:  The term Securities means stocks, bonds, rights, warrants and all
other negotiable or non-negotiable paper issued in certificated or book-entry
form commonly known as "securities" in banking custom or practice.

SHAREHOLDERS:  The term Shareholders shall mean the registered owners from time
to time of the Shares of the Trust in accordance with the registry records
maintained by the Trust or agents on its behalf.

SHARES:  The term Shares of the Trust shall mean the units of beneficial
interest.

S1.  The Trust hereby appoints the Custodian as Custodian of the Trust's cash,
Securities and other property, to be held by the Custodian as provided in this
Agreement.  The Custodian hereby accepts such appointment subject to the terms
and conditions hereinafter provided.  The Bank shall open a separate custodial
account in the name of the Trust on the books and records of the Bank to hold
the Securities of the Trust deposited with, transferred to or collected by the
Bank for the account of the Trust, and a separate cash account to which the
Bank shall credit monies received by the Bank for the account of or from the
Trust.  Such cash shall be segregated from the assets of others and shall be
and remain the sole property of the Trust.

S2.  The Trust shall from time to time file with the Custodian a certified copy
of each resolution of its Board of Trustees authorizing the person or persons
to give Proper Instructions and specifying the class of instructions that may
be given by each person to the Custodian under this Agreement, together with
certified signatures of such persons authorized to sign, which shall constitute
conclusive evidence of the authority of the officers and signatories designated
therein to act, and shall be considered in full force and effect with the
Custodian fully protected in acting in reliance thereon until it receives
written notice to the contrary; provided, however, that if the certifying
officer is authorized to give Proper Instructions, the certification shall be
also signed by a second officer of the Trust.

S3.  The Trust will cause to be deposited with the Custodian hereunder the
applicable net asset value of Shares sold from time to time whether
representing initial issue, other stock or reinvestments of dividends and/or
distributions payable to Shareholders.

S4.  The Bank, acting as agent for the Trust, is authorized, directed and
instructed subject to the further provisions of this Agreement:

         (a)     to hold Securities issued only in bearer form in bearer form;




                                    - 2 -
<PAGE>   3

         (b)     to register in the name of the nominee of the Bank, the Bank's
                 Depositories, or sub-custodians, (i) Securities issued only in
                 registered form, and (ii) Securities issued in both bearer and
                 registered form, which are freely interchangeable without
                 penalty;

         (c)     to deposit any Securities which are eligible for deposit (i)
                 with any domestic or foreign Depository on such terms and
                 conditions as such Depository may require, including
                 provisions for limitation or exclusion of liability on the
                 part of the Depository; and (ii) with any sub-custodian which
                 the Bank uses, including any subsidiary or affiliate of the
                 Bank;

         (d)     (i)       to credit for the account of the Trust all proceeds
                           received and payable on or in respect of the assets
                           maintained hereunder,

                 (ii)      to debit the account of the Trust for the cost of
                           acquiring Securities the Bank has received for the
                           Trust, against delivery of such Securities to the
                           Bank,

                 (iii)     to present for payment Securities and other
                           obligations (including coupons) upon maturity, when
                           called for redemption, and when income payments are
                           due, and

                 (iv)      to make exchanges of Securities which, in the Bank's
                           opinion, are purely ministerial as, for example, the
                           exchange of Securities in temporary form for
                           Securities in definitive form or the mandatory
                           exchange of certificates;

         (e)     to forward to the Trust, and/or any other person designated by
                 the Trust, all proxies and proxy materials received by the
                 Bank in connection with Securities held in the Trust's
                 account, which have been registered in the name of the Bank's
                 nominee, or are being held by any Depository, or sub-
                 custodian, on behalf of the Bank;

         (f)     to sell any fractional interest of any Securities which the
                 Bank has received resulting from any stock dividend, stock
                 split, distribution, exchange, conversion or similar activity;

         (g)     to release the Trust's name, address and aggregate share
                 position to the issuers of any domestic Securities in the
                 account of the Trust, provided, however, the Trust may
                 instruct the Bank not to provide any such information to any
                 issuer;

         (h)     to endorse and collect all checks, drafts or other orders for
                 the payment of
                 



                                    - 3 -

<PAGE>   4

                 money received by the Bank for the account of or from the 
                 Trust;

         (i)     at the direction of the Trust, to enroll designated Securities
                 belonging to the Trust and held hereunder in a program for the
                 automatic reinvestment of all income and capital gains
                 distributions on those Securities in new shares (an "Automatic
                 Reinvestment Program"), or instruct any Depository holding
                 such Securities to enroll those Securities in an Automatic
                 Reinvestment Program;

         (j)     at the direction of the Trust, to receive, deliver and
                 transfer Securities and make payments and collections of
                 monies in connection therewith, enter purchase and sale orders
                 and perform any other acts incidental or necessary to the
                 performance of the above acts with brokers, dealers or similar
                 agents selected by the Trust, including any broker, dealer or
                 similar agent affiliated with the Bank, for the account and
                 risk of the Trust in accordance with accepted industry
                 practice in the relevant market, provided, however, if it is
                 determined that any certificated Securities transferred to a
                 Depository or sub-custodian, the Bank, or the Bank's nominee,
                 the Bank's sole responsibility for such Securities under this
                 Agreement shall be to safekeep the Securities in accordance
                 with Section 11 hereof; and

         (k)     to notify the Trust and/or any other person designated by the
                 Trust upon receipt of notice by the Bank of any call for
                 redemption, tender offer, subscription rights, merger,
                 consolidation, reorganization or recapitalization which (i)
                 appears in The Wall Street Journal (New York edition), The
                 Standard & Poor's Called Bond Record for Preferred Stocks,
                 Financial Daily Called Bond Service, The Kenny Services, any
                 official notifications from The Depository Trust Company and
                 such other publications or services to which the Bank may from
                 time to time subscribe, (ii) requires the Bank to act in
                 response thereto, and (iii) pertain to Securities belonging to
                 the Trust and held hereunder which have been registered in the
                 name of the Bank's nominee or are being held by a Depository
                 or sub-custodian on behalf of the Bank.  Notwithstanding
                 anything contained herein to the contrary, the Trust shall
                 have the sole responsibility for monitoring the applicable
                 dates on which Securities with put option features must be
                 exercised.  All solicitation fees payable to the Bank as agent
                 in connection herewith will be retained by the Bank unless
                 expressly agreed to the contrary in writing by the Bank.

Notwithstanding anything in this Section to the contrary, the Bank is
authorized to hold Securities for the Trust which have transfer limitations
imposed upon them by the Securities Act of 1933, as amended, or represent
shares of mutual funds (i) in the name




                                    - 4 -
<PAGE>   5

of the Trust, (ii) in the name of the Bank's nominee, or (iii) with any
Depository or sub-custodian.

S1.  The Custodian's compensation shall be as set forth in Schedule A hereto
attached, or as shall be set forth in amendments to such schedule approved by
the Trust and the Custodian.  The Bank is authorized to charge the Trust's
account for such compensation.  All expenses and taxes payable with respect to
the Securities in the account of the Trust including, without limitation,
commission charges on purchases and sales and the amount of any loss or
liability for stockholders' assessments or otherwise, claimed or asserted
against the bank or against the Bank's nominee by reason of any registration
hereunder shall be charged to the Trust.

S2.  In connection with its functions under this Agreement, the Custodian
shall:

         (a)     render to the Trust a daily report of all monies received or
                 paid on behalf of the Trust; and

         (b)     create, maintain and retain all records relating to its
                 activities and obligations under this Agreement in such manner
                 as will meet the obligations of the Trust with respect to said
                 Custodian's activities in accordance with generally accepted
                 accounting principles.  All records maintained by the
                 Custodian in connection with the performance of its duties
                 under this Agreement will remain the property of the Trust and
                 in the event of termination of this Agreement will be
                 relinquished to the Trust.

S1.  Any Securities deposited with any Depository or with any sub-custodian
will be represented in accounts in the name of the Bank which include only
property held by the Bank as Custodian for customers in which the Bank acts in
a fiduciary or agency capacity.

Should any Securities which are forwarded to the Bank by the Trust, and which
are subsequently deposited to the Bank's account in any Depository or with any
sub-custodian, or which the Trust may arrange to deposit in the Bank's account
in any Depository or with any sub-custodian, not be deemed acceptable for
deposit by such Depository or sub-custodian, for any reason, and as a result
thereof there is a short position in the account of the Bank with the
Depository for such Security, the Trust agrees to furnish the Bank immediately
with like Securities in acceptable form.

S1.  The Trust represents and warrants that: (i) it has the legal right, power
and authority to execute, deliver and perform this Agreement and to carry out
all of the transactions contemplated hereby; (ii) it has obtained all necessary
authorizations; (iii) the execution, delivery and performance of this Agreement
and the carrying out of any of




                                    - 5 -
<PAGE>   6

the transactions contemplated hereby will not be in conflict with, result in a
breach of or constitute a default under any agreement or other instrument to
which the Trust is a party or which is otherwise known to the Trust; (iv) it
does not require the consent or approval of any governmental agency or
instrumentality, except any such consents and approvals which the Trust has
obtained; (v) the execution and delivery of this Agreement by the Trust will
not violate any law, regulation, charter, by-law, order of any court or
governmental agency or judgment applicable to the Trust; and (vi) all persons
executing this Agreement on behalf of the Trust and carrying out the
transactions contemplated hereby on behalf of the Trust are duly authorized to
do so.

In the event any of the foregoing representations should become untrue,
incorrect or misleading, the Trust agrees to notify the Bank immediately in
writing thereof.

S1.  The Bank represents and warrants that: (i) it has the legal right, power
and authority to execute, deliver and perform this Agreement and to carry out
all of the transactions contemplated hereby; (ii) it has obtained all necessary
authorizations; (iii) the execution, delivery and performance of this Agreement
and the carrying out of any of the transactions contemplated hereby will not be
in conflict with, result in a breach of or constitute a default under any
agreement or other instrument to which the Bank is a party or which is
otherwise known to the Bank; (iv) it does not require the consent or approval
of any governmental agency or instrumentality, except any such consents and
approvals which the Bank has obtained; (v) the execution and delivery of this
Agreement by the Bank will not violate any law, regulation, charter, by-law,
order of any court or governmental agency or judgment applicable to the Bank;
and (vi) all persons executing this Agreement on behalf of the Bank and
carrying out the transactions contemplated hereby on behalf of the Bank are
duly authorized to do so.  In the event that any of the foregoing
representations should become untrue, incorrect or misleading, the Bank agrees
to notify the Trust immediately in writing thereof.

S2.  All cash and Securities held by the Bank hereunder shall be kept with the
care exercised as to the Bank's own similar property.  The Bank may at its
option insure itself against loss from any cause but shall be under no
obligation to insure for the benefit of the Trust.

S3.  No liability of any kind shall be attached to or incurred by the Custodian
by reason of its custody of the Trust's assets held by it from time to time
under this Agreement, or otherwise by reason of its position as Custodian
hereunder except only for its own negligence, bad faith, or willful misconduct
in the performance of its duties as specifically set forth in the Custodian
Agreement.  Without limiting the generality of the foregoing sentence, the
Custodian:

         (a)     may rely upon the advice of counsel for the Trust; and for any
                 action taken or suffered in good faith based upon such advice
                 or statements the




                                    - 6 -
<PAGE>   7

                 Custodian shall not be liable to anyone;

         (b)     shall not be liable for anything done or suffered to be done
                 in good faith in accordance with any request or advice of, or
                 based upon information furnished by, the Trust or its
                 authorized officers or agents;

         (c)     is authorized to accept a certificate of the Secretary or
                 Assistant Secretary of the Trust, or Proper Instructions, to
                 the effect that a resolution in the form submitted has been
                 duly adopted by its Board of Trustees or by the Shareholders,
                 as conclusive evidence that such resolution has been duly
                 adopted and is in full force and effect; and

         (d)     may rely and shall be protected in acting upon any signature,
                 written (including telegraph or other mechanical)
                 instructions, request, letter of transmittal, certificate,
                 opinion of counsel, statement, instrument, report, notice,
                 consent, order, or other paper or document reasonably believed
                 by it to be genuine and to have been signed, forwarded or
                 presented by the purchaser, Trust or other proper party or
                 parties.

S1.  The Trust, its successors and assigns do hereby fully indemnify and hold
harmless the Custodian its successors and assigns, from any and all loss,
liability, claims, demand, actions, suits and expenses of any nature as the
same may arise from the failure of the Trust to comply with any law, rule,
regulation or order of the United States, any state or any other jurisdiction,
governmental authority, body, or board relating to the sale, registration,
qualification of units of beneficial interest in the Trust, or from the failure
of the Trust to perform any duty or obligation under this Agreement.

Upon written request of the Custodian, the Trust shall assume the entire
defense of any claim subject to the foregoing indemnity, or the joint defense
with the Custodian of such claim, as the Custodian shall request.  The
indemnities and defense provisions of this Section 13 shall indefinitely
survive termination of this Agreement.

S1.  This Agreement may be amended from time to time without notice to or
approval of the Shareholders by a supplemental agreement executed by the Trust
and the Bank and amending and supplementing this Agreement in the manner
mutually agreed.

S2.  Either the Trust or the Custodian may give one hundred twenty (120) days'
written notice to the other of the termination of this Agreement, such
termination to take effect at the time specified in the notice.  In case such
notice of termination is given either by the Trust or by the Custodian, the
Trustees of the Trust shall, by resolution duly adopted, promptly appoint a
successor Custodian (the "Successor Custodian") which Successor Custodian shall
be a bank, trust company, or a bank and trust company in good standing, with
legal capacity to accept custody of the cash and Securities of a




                                    - 7 -
<PAGE>   8

mutual fund.  Upon receipt of written notice from the Trust of the appointment
of such Successor Custodian and upon receipt of Proper Instructions, the
Custodian shall deliver such cash and Securities as it may then be holding
hereunder directly and only to the Successor Custodian.  Unless or until a
Successor Custodian has been appointed as above provided, the Custodian then
acting shall continue to act as Custodian under this Agreement.

Every Successor Custodian appointed hereunder shall execute and deliver an
appropriate written acceptance of its appointment and shall thereupon become
vested with the rights, powers, obligations and custody of its predecessor
Custodian.  The Custodian ceasing to act shall nevertheless, upon request of
the Trust and the Successor Custodian and upon payment of its charges and
disbursements, execute an instrument in form approved by its counsel
transferring to the Successor Custodian all the predecessor Custodian's rights,
duties, obligations and custody.

Subject to the provisions of Section 21 hereof, in case the Custodian shall
consolidate with or merge into any other corporation, the corporation remaining
after or resulting from such consolidation or merger shall ipso facto without
the execution of filing of any papers or other documents, succeed to and be
substituted for the Custodian with like effect as though originally named as
such, provided, however, in every case that said Successor corporation
maintains the qualifications set out in Section 17(f) of the Investment Company
Act of 1940, as amended.

S1.  This Agreement shall take effect when assets of the Trust are first
delivered to the Custodian.

S2.  This Agreement may be executed in two or more counterparts, each of which
when so executed shall be deemed to be an original, but such counterparts shall
together constitute but one and the same instrument.

S3.  A copy of the Declaration of Trust of the Trust is on file with the
Secretary of State of the Commonwealth of Massachusetts, and notice is hereby
given that this instrument is executed on behalf of the Trustees of the Trust
as Trustees and not individually and that the obligations of this instrument
are not binding upon any of the Trustees, officers or Shareholders of the Trust
individually, but binding only upon the assets and property of the Trust.  No
Fund of the Trust shall be liable for the obligations of any other Fund of the
Trust.

S4.  The Custodian shall create and maintain all records relating to its
activities and obligations under this Agreement in such manner as will meet the
obligations of the Trust under the Investment Company Act of 1940, as amended,
with particular attention to Section 31 thereof and Rules 31a-1 and 31a-2
thereunder, applicable Federal and state tax laws and any other law or
administrative rules or procedures which may be




                                    - 8 -
<PAGE>   9

applicable to the Trust.

Subject to security requirements of the Custodian applicable to its own
employees having access to similar records within the Custodian, the books and
records of the Custodian pertaining to this Agreement shall be open to
inspection and audit at any reasonable times by officers of, attorneys for, and
auditors employed by, the Trust.

S1.  Nothing contained in this Agreement is intended to or shall require the
Custodian in any capacity hereunder to perform any functions or duties on any
holiday or other day of special observance on which the Custodian is closed.
Functions or duties normally scheduled to be performed on such days shall be
performed on, and as of, the next business day the Custodian is open.

S2.  This Agreement shall extend to and shall be binding upon the parties
hereto and their respective successors and assigns; provided, however, that
this Agreement shall not be assignable by the Trust without the written consent
of the Custodian, or by the Custodian without the written consent of the Trust,
authorized or approved by a resolution of its Board of Trustees.

S3.  All communications (other than Proper Instructions which are to be
furnished hereunder to either party, or under any amendment hereto, shall be
sent by mail to the address listed below, provided that in the event that the
Bank, in its sole discretion, shall determine that an emergency exists, the
Bank may use such other means of communications as the Bank deems advisable.

                 To the Trust:    SEI Institutional Investments Trust
                                  c/o SEI Corporation
                                  680 East Swedesford Road
                                  Wayne, PA 19087

                 To the Bank:




                                    - 9 -
<PAGE>   10


S1.  This Agreement, and any amendments hereto, shall be governed, construed
and interpreted in accordance with the laws of the Commonwealth of Pennsylvania
applicable to agreements made and to be performed entirely within such
Commonwealth.

IN WITNESS WHEREOF, the Trust and the Custodian have caused this Agreement to
be signed by their respective officers as of the day and year first above
written.

SEI INSTITUTIONAL INVESTMENTS TRUST


By:                           
    --------------------------
         Name:  Kevin P. Robins
         Title: Vice President

CORESTATES BANK, N.A.


By:                           
    --------------------------
         Name:   Paul T. Cahill
         Title:  Vice President




                                   - 10 -
<PAGE>   11

                                   SCHEDULE A

                                  FEE SCHEDULE


         1.00 basis points on the first $2.5 billion

          .75 basis points on the next $2.5 billion

          .50 basis points son the next $5 billion

          .40 basis points on remainder

Transactions billed separately by portfolio at the now current rates.  Asset
level charges billed as one invoice covering all SEI Institutional Investments
Trust portfolios custodied at CoreStates.  SEI will allocate charges back to
individual portfolios.  Transactions charges are subject to change.





                                   - 11 -
<PAGE>   12

                                   SCHEDULE B

                                CUSTODY SERVICES

Transaction Fees

  $ 4.00                   Per trade and maturity clearing through Depository
                           Trust Company.

  $10.00                   Per trade and maturity clearing book entry
                           through Federal Reserve.
                           
  $15.00                   Per trade and maturity for assets requiring
                           physical settlement.

  $10.00                   Per trade and maturity clearing through
                           Participants Trust Company.

  $ 4.00                   Paydowns on mortgage-backed securities.

  $ 5.50                   Fed wire charge on Repo collateral in/out.

  $ 5.50/7.50              Other cash wire transfers in/out.

  $ 5.50                   Dividend reinvestment.

  $ 2.50                   Fed charge for sale/return of collateral.




                                   - 12 -

<PAGE>   1
                                                                      EXHIBIT 10







SEI Institutional Investments Trust
2 Oliver Street
Boston, MA 02109


Gentlemen:

We are furnishing this opinion with respect to the proposed offer and sale from
time to time of units of beneficial interest, without par value (the "Shares"),
of SEI Institutional Investments Trust (the "Trust"), a Massachusetts business
trust, being registered under the Securities Act of 1933 and the Investment
company Act of 1940 by a Registration Statement on Form N-1A (File No.
33-58041) as amended from time to time (the "Registration Statement").

We have acted as counsel to the Trust since its inception, and we are familiar
with the actions taken by its trustees to authorize the issuance of the Shares.
We have reviewed the Agreement and Declaration of Trust, the By-Laws, and the
minute books of the Trust, and such other certificates, documents and opinions
of counsel as we deem necessary for the purpose of this opinion.

We have reviewed the Trust's Notification of Registration on Form N-8A under
the Investment Company Act of 1940.  We have assisted in the preparation of the
Trust's Registration Statement, including all pre-effective amendments thereto
filed or to be filed with the Securities and Exchange Commission.

We assume the appropriate action will be taken to register or qualify the sale
of the Shares under any applicable state and federal laws regulating sales and
offerings of securities.

Based upon the foregoing, we are of the opinion that:
<PAGE>   2
SEI Instituional Investments Trust
Page 2

                 1.       The Trust is a business trust validly existing under
the laws of the Commonwealth of Massachusetts.  The Trust is authorized to
issue an unlimited number of Shares in seven series representing interests in
the Large Cap Fund, the Small Cap Fund, the Core Fixed Income Fund, the High
Yield Bond Fund, the International Fixed Income Fund, the Emerging Markets
Equity Fund, and the International Equity Fund of the Trust, and in such other
series or classes as the Trustees may hereafter duly authorize.

                 2.       Upon the issue of any Shares of any of the series or
classes of the Trust for payment therefor as described in the Prospectus and
Statement of Additional Information for such series or class filed as part of
the Registration Statement, the Shares so issued will be validly issued, fully
paid and non-assessable.

This opinion is intended only for your use in connection with the offering of
Shares and may not be relied upon by any other person.

We hereby consent to the inclusion of this opinion as Exhibit 10 to the Trust's
Registration Statement on Form N-1A to be filed with the Securities and
Exchange Commission and to the reference to our firm under the caption "Counsel
and Independent Public Accountants" in the Prospectus filed as part of such
Registration Statement.





Very truly yours,




Morgan, Lewis & Bockius LLP



RWG:MTP:chm

<PAGE>   1
                                                                     EXHIBIT 11



                      CONSENT OF INDEPENDENT ACCOUNTANTS


We consent to the inclusion of our report dated April 22, 1996 on our audit of
the Statement of Assets and Liabilities of SEI Institutional Investments Trust
(comprised of the Large Cap Fund, Small Cap Fund, Core Fixed Income Fund, High
Yield Bond Fund, International Fixed Income Fund, Emerging Markets Equity Fund,
and International Equity Fund) as of April 16, 1996 with respect to this
Pre-Effective Amendment No. 1 to the Registration Statement on Form N-1A under
the Investment Company Act of 1940, as amended, of SEI Institutional
Investments Trust.

We also consent to the reference to our Firm under the heading "Counsel and
Independent Accountants" in the Prospectus.




/s/
Coopers & Lybrand L.L.P.


2400 Eleven Penn Center
Philadelphia, Pennsylvania
April 22, 1996


<PAGE>   1
                                                                     EXHIBIT 16


This schedule is included to illustrate how the yield will be calculated for
the Large Cap, Small Cap, Core Fixed Income, High Yield Bond, International
Fixed Income, Emerging Markets Equity and International Equity Funds.  The
funds were not in operation as of April 15, 1996.  The examples presented are
an estimate of future operations.  The Funds have a fiscal year ending December
31.

                      Yield =2 [(a-b)/cd + 1)(carat)6-1]


<TABLE>
<CAPTION>
                                                Core Fixed          High Yield
             Large Cap          Small Cap         Income               Bond
             ---------          ---------         ------               ----
<S>         <C>                  <C>            <C>                  <C>
a=             602,113              621          1,370,273            27,339
b=              36,578               68             87,913             1,535
c=          10,288,982           10,619         23,920,809           442,409
d=                9.73             9.33               9.17              9.64
Yield=            6.87%            7.20%              7.12%             7.37%
</TABLE>

<TABLE>
<CAPTION>
           International         Emerging       International
           Fixed Income       Markets Equity       Equity
           ------------       --------------       ------
<S>         <C>                  <C>             <C>
a=             264,418              789            329,262
b=              13,771               80             34,053
c=          25,171,689           13,499          5,282,833
d=                1.96             9.71               9.33
Yield=            6.17%            6.58%              6.89%
</TABLE>

                     Total Return P(1 + T)(carat)n = ERV


<TABLE>
<CAPTION>
                                                  Core Fixed      High Yield
               Large Cap        Small Cap           Income           Bond
               ---------        ---------           ------           ----
<S>           <C>                <C>              <C>             <C>
P=               1,000            1,000              1,000           1,000
n=                   1                1                  1               1
ERV=          1,058.60           853.30           1,060.90        1,052.60
T=                5.86%           14.67%              6.09%           5.26%
</TABLE>

<TABLE>
<CAPTION>
           International         Emerging       International
           Fixed Income       Markets Equity       Equity
           ------------       --------------       ------
<S>           <C>                <C>              <C>
P=               1,000            1,000              1,000  
n=                   1                1                  1  
ERV=          1,064.40         1,067.80             831.60  
T=                6.44%            6.78%             16.84% 
</TABLE>



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