HUMANA INC
SC 14D1, 1995-08-16
HOSPITAL & MEDICAL SERVICE PLANS
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<PAGE>   1
 
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                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                             ---------------------
                                 SCHEDULE 14D-1
              TENDER OFFER STATEMENT PURSUANT TO SECTION 14(D)(1)
                     OF THE SECURITIES EXCHANGE ACT OF 1934
                                      AND
                                  SCHEDULE 13D
                   UNDER THE SECURITIES EXCHANGE ACT OF 1934
                             ---------------------
 
                         EMPHESYS FINANCIAL GROUP, INC.
 
                           (Name of Subject Company)
                                   HEW, INC.
                          A WHOLLY OWNED SUBSIDIARY OF
 
                                  HUMANA INC.
 
                                   (Bidders)
                         COMMON STOCK, $0.01 PAR VALUE
 
                         (Title of Class of Securities)
                                   29158K104
                     (CUSIP Number of Class of Securities)
                            ARTHUR P. HIPWELL, ESQ.
                              THE HUMANA BUILDING
                              500 WEST MAIN STREET
                           LOUISVILLE, KENTUCKY 40202
                                 (502) 580-1000
 
          (Name, address and telephone number of person authorized to
            receive notices and communications on behalf of bidders)
                                   Copies to:
 
                              JEFFREY BAGNER, ESQ.
                    FRIED, FRANK, HARRIS, SHRIVER & JACOBSON
                               ONE NEW YORK PLAZA
                         NEW YORK, NEW YORK 10004-1980
                                 (212) 859-8000
 
                                August 10, 1995
        (Date Of Event Which Requires Filing Statement On Schedule 13D)
                             ---------------------
                           CALCULATION OF FILING FEE
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
 
<TABLE>
<CAPTION>
            TRANSACTION VALUATION*                         AMOUNT OF FILING FEE
<S>                                           <C>
--------------------------------------------------------------------------------------------
               $648,892,237.50                                 $129,778.45
--------------------------------------------------------------------------------------------
--------------------------------------------------------------------------------------------
</TABLE>
 
 * For the purpose of calculating the fee only, this amount assumes the purchase
   of 17,303,793 shares of Common Stock of EMPHESYS Financial Group, Inc. at
   $37.50 per share. Such number of shares includes all outstanding shares as of
   August 7, 1995, and assumes the exercise of all stock options to purchase
   shares of Common Stock outstanding as of such date which have an exercise
   price of less than $37.50.
 
/ / Check box if any part of the fee is offset as provided by Rule 0-11(a)(2)
    and identify the filing with which the offsetting fee was previously paid.
    Identify the previous filing by registration statement number, or the Form
    or Schedule and the date of its filing.
 
<TABLE>
<S>                                                            <C>
AMOUNT PREVIOUSLY PAID:                                        FILING PARTY:
FORM OR REGISTRATION NO.:                                      DATE FILED:
</TABLE>
 
--------------------------------------------------------------------------------
--------------------------------------------------------------------------------
<PAGE>   2
 
<TABLE>
<S>     <C>
----------------------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        HEW, Inc.
        IRS No. 61-1286709
----------------------------------------------------------------------------------------------
2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
        (a)  / /
        (b)  / /
----------------------------------------------------------------------------------------------
3       SEC USE ONLY
----------------------------------------------------------------------------------------------
4       SOURCES OF FUNDS (SEE INSTRUCTIONS)
        AF
----------------------------------------------------------------------------------------------
5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR
        2(f).                                                                           / /
----------------------------------------------------------------------------------------------
6       CITIZENSHIP OR PLACE OF ORGANIZATION
        Delaware
----------------------------------------------------------------------------------------------
7       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        4,986,507*
----------------------------------------------------------------------------------------------
8       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 7 EXCLUDES CERTAIN SHARES (SEE INSTRUCTIONS)
----------------------------------------------------------------------------------------------
9       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 7
        29.2%*
----------------------------------------------------------------------------------------------
10      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
        CO
----------------------------------------------------------------------------------------------
</TABLE>
 
* On August 9, 1995, Humana Inc. (the "Parent") and HEW, Inc., a wholly owned
  subsidiary of the Parent (the "Offeror"), entered into a Stock Option and
  Tender Agreement (the "Stock Option and Tender Agreement") with Lincoln
  National Corporation ("LNC") and American States Insurance Company, a wholly
  owned subsidiary of LNC (the "Selling Stockholder"), pursuant to which the
  Selling Stockholder has agreed, among other things, to grant an option to
  purchase all shares of common stock, par value $0.01 per share (the "Shares"),
  of EMPHESYS Financial Group, Inc. (the "Company") owned by it (representing an
  aggregate of 4,986,507 Shares, or approximately 29.2% of the Shares
  outstanding as of August 7, 1995), at $37.50 per Share. Pursuant to the Stock
  Option and Tender Agreement, the Selling Stockholder has also agreed, among
  other things, to vote, or grant a consent or approval in respect of the Shares
  subject to the Stock Option and Tender Agreement, (i) in favor of the merger
  contemplated by the Agreement and Plan of Merger (the "Merger Agreement")
  among the Parent, the Offeror and the Company, dated as of August 9, 1995, and
  (ii) against transactions involving the Company other than the transactions
  contemplated by the Merger Agreement. The Stock Option and Tender Agreement is
  described more fully in Section 13 of the Offer to Purchase, dated August 16,
  1995, attached as Exhibit (a)(1) hereto.
 
                                        2
<PAGE>   3
 
<TABLE>
<S>     <C>
----------------------------------------------------------------------------------------------
1       NAME OF REPORTING PERSON
        S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
        Humana Inc.
        IRS No. 61-0647538
----------------------------------------------------------------------------------------------
2       CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP (SEE INSTRUCTIONS)
        (a)  / /
        (b)  / /
----------------------------------------------------------------------------------------------
3       SEC USE ONLY
----------------------------------------------------------------------------------------------
4       SOURCES OF FUNDS (SEE INSTRUCTIONS)
        WC, BK
----------------------------------------------------------------------------------------------
5       CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS 2(e) OR
        2(f).                                                                           / /
----------------------------------------------------------------------------------------------
6       CITIZENSHIP OR PLACE OF ORGANIZATION
        Delaware
----------------------------------------------------------------------------------------------
7       AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
        4,986,507*
----------------------------------------------------------------------------------------------
8       CHECK BOX IF THE AGGREGATE AMOUNT IN ROW 7 EXCLUDES CERTAIN
        SHARES (SEE INSTRUCTIONS)
----------------------------------------------------------------------------------------------
9       PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 7
        29.2%*
----------------------------------------------------------------------------------------------
10      TYPE OF REPORTING PERSON (SEE INSTRUCTIONS)
        CO
----------------------------------------------------------------------------------------------
</TABLE>
 
* See footnote on previous page.
 
                                        3
<PAGE>   4
 
     This Statement relates to a tender offer by HEW, Inc., a Delaware
corporation (the "Offeror") and a wholly owned subsidiary of Humana Inc., a
Delaware corporation (the "Parent"), to purchase all outstanding shares of
common stock, par value $0.01 per share (the "Shares"), of EMPHESYS Financial
Group, Inc., a Delaware corporation (the "Company"), at a purchase price of
$37.50 per Share, net to the seller in cash, without interest, upon the terms
and subject to the conditions set forth in the Offer to Purchase, dated August
16, 1995 (the "Offer to Purchase"), and in the related Letter of Transmittal
(which together constitute the "Offer"), copies of which are filed as Exhibits
(a)(1) and (a)(2) hereto, respectively, and which are incorporated herein by
reference.
 
ITEM 1. SECURITY AND SUBJECT COMPANY.
 
     (a) The name of the subject company is EMPHESYS Financial Group, Inc. The
address of the principal executive offices of the Company is set forth in
Section 8 ("Certain Information Concerning the Company") of the Offer to
Purchase and is incorporated herein by reference.
 
     (b) The exact title of the class of equity securities being sought in the
Offer is the Common Stock, par value $0.01 per share, of the Company. The
information set forth in the Introduction to the Offer to Purchase is
incorporated herein by reference.
 
     (c) The information set forth in Section 6 ("Price Range of Shares;
Dividends") of the Offer to Purchase is incorporated herein by reference.
 
ITEM 2. IDENTITY AND BACKGROUND.
 
     (a) through (d), (g): The information set forth in the Introduction and
Section 9 ("Certain Information Concerning the Parent and the Offeror") of the
Offer to Purchase, and in Annex I thereto, is incorporated herein by reference.
 
     (e) and (f): None of the Offeror or the Parent, nor, to the best of their
knowledge, any of the persons listed in Annex I of the Offer to Purchase, has
during the last five years (i) been convicted in a criminal proceeding
(excluding traffic violations or similar misdemeanors) or (ii) been a party to a
civil proceeding of a judicial or administrative body of competent jurisdiction
and as a result of such proceeding was or is subject to a judgment, decree or
final order enjoining future violations of, or prohibiting activities subject
to, federal or state securities laws or finding any violation of such laws.
 
ITEM 3. PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH THE SUBJECT COMPANY.
 
     (a) None.
 
     (b) The information set forth in the Introduction and Section 11
("Background of the Offer; Past Contacts, Transactions or Negotiations with the
Company") and Section 8 ("Certain Information Concerning the Company") of the
Offer to Purchase is incorporated herein by reference.
 
ITEM 4. SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.
 
     (a) and (b): The information set forth in Section 10 ("Source and Amount of
Funds") of the Offer to Purchase is incorporated herein by reference.
 
     (c) Not applicable.
 
ITEM 5. PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF THE BIDDER.
 
     (a) through (e): The information set forth in the Introduction, Section 11
("Background of the Offer; Past Contacts, Transactions or Negotiations with the
Company"), Section 12 ("Purpose of the Offer and the Merger; Plans for the
Company") and Section 13 ("The Merger Agreement; the Stock Option and Tender
Agreement") of the Offer to Purchase is incorporated herein by reference. Except
as set forth in Sections 12 and 13 of the Offer to Purchase, neither the Parent
nor the Offeror have any present plans or proposals that would result in an
extraordinary corporate transaction, such as a merger, reorganization,
liquidation or sale or
 
                                        4
<PAGE>   5
 
transfer of a material amount of assets involving the Company, or any other
material changes in the Company's capitalization, dividend policy, corporate
structure or business or composition of its management or personnel.
 
     (f) and (g): The information set forth in Section 7 ("Effect of the Offer
on NYSE Listing, Market for Shares and Registration under the Exchange Act") of
the Offer to Purchase is incorporated herein by reference.
 
ITEM 6. INTEREST IN SECURITIES OF THE SUBJECT COMPANY.
 
     (a) and (b): The information set forth in the Introduction, Section 9
("Certain Information Concerning the Parent and the Offeror") and Section 13
("The Merger Agreement; The Stock Option and Tender Agreement") of the Offer to
Purchase is incorporated herein by reference.
 
ITEM 7. CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT TO
        THE SUBJECT COMPANY'S SECURITIES.
 
     The information set forth in the Introduction and Section 11 ("Background
of the Offer; Past Contacts, Transactions or Negotiations with the Company") of
the Offer to Purchase is incorporated herein by reference.
 
ITEM 8. PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED.
 
     The information set forth in the Introduction and in Section 17 ("Fees and
Expenses") of the Offer to Purchase is incorporated herein by reference.
 
ITEM 9. FINANCIAL STATEMENTS OF CERTAIN BIDDERS.
 
     The information set forth in Section 9 ("Certain Information Concerning the
Parent and the Offeror") of the Offer to Purchase is incorporated herein by
reference.
 
     The incorporation by reference herein of the above-mentioned financial
information does not constitute an admission that such information is material
to a decision by a security holder of the Company as whether to sell, tender or
hold Shares being sought in the Offer.
 
ITEM 10. ADDITIONAL INFORMATION.
 
     (a) The information set forth in Section 11 ("Background of the Offer; Past
Contacts, Transactions or Negotiations with the Company") and Section 12
("Purpose of the Offer and the Merger; Plans for the Company") of the Offer to
Purchase is incorporated herein by reference.
 
     (b) and (c) The information set forth in Section 16 ("Certain Regulatory
and Legal Matters") of the Offer to Purchase is incorporated herein by
reference.
 
     (d) The information set forth in Section 7 ("Effect of the Offer on NYSE
Listing, Market for Shares and Registration under the Exchange Act").
 
     (e) None.
 
     (f) The information set forth in the Offer to Purchase and the Letter of
Transmittal is incorporated herein by reference in its entirety.
 
ITEM 11. MATERIAL TO BE FILED AS EXHIBITS.
 
     (a)(1) Offer to Purchase, dated August 16, 1995.
 
     (a)(2) Letter of Transmittal.
 
     (a)(3) Letter from Smith Barney Inc., as Dealer Manager, to Brokers,
Dealers, Commercial Banks, Trust Companies and Other Nominees.
 
                                        5
<PAGE>   6
 
     (a)(4) Letter from Brokers, Dealers, Commercial Banks, Trust Companies and
Other Nominees to Clients.
 
     (a)(5) Letter from the Automatic Dividend Reinvestment and Common Stock
Purchase Plan of EMPHESYS Financial Group, Inc. to Participants.
 
     (a)(6) Notice of Guaranteed Delivery.
 
     (a)(7) Guidelines for Certification of Taxpayer Identification Number on
Substitute Form W-9.
 
     (a)(8) Summary Announcement, dated August 16, 1995.
 
     (a)(9) Press Release issued by the Parent and the Company on August 10,
1995.
 
     (a)(10) Agreement and Plan of Merger, dated as of August 9, 1995, among the
Parent, the Offeror and the Company.
 
     (a)(11) Press Release issued by the Parent on August 16, 1995.
 
     (b)(1) Credit Agreement, dated as of January 12, 1994, as amended by an
Agreement and Amendment dated as of October 27, 1994, and an Amendment dated as
of August 1, 1995, among Chemical Bank as Agent, the Banks party thereto, and
the Parent.
 
     (c)(1) Stock Option and Tender Agreement, dated as of August 9, 1995, among
the Parent, Lincoln National Corporation and American States Insurance Company.
 
     (d) None.
 
     (e) Not applicable.
 
     (f) None.
 
                                        6
<PAGE>   7
 
                                   SIGNATURE
 
     After due inquiry and to the best of its knowledge and belief, each of the
undersigned certifies that the information set forth in this statement is true,
complete and correct.
 
Dated: August 16, 1995
 
                                            HEW, INC.
 
                                            By: /s/       JAMES E. MURRAY
                                                --------------------------------
                                                Name: James E. Murray
                                                Title: Vice President and
                                                  Controller
 
                                            HUMANA INC.
 
                                            By: /s/      ARTHUR P. HIPWELL
                                                --------------------------------
                                                Name: Arthur P. Hipwell
                                                Title: Senior Vice President and
                                                  General Counsel
 
                                        7
<PAGE>   8
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
EXHIBIT                                      DESCRIPTION
-------  ------------------------------------------------------------------------------------
<S>      <C>
 (a)(1)  -- Offer to Purchase, dated August 16, 1995.
 (a)(2)  -- Letter of Transmittal.
 (a)(3)  -- Letter from Smith Barney Inc., as Dealer Manager, to Brokers, Dealers, Commercial
            Banks, Trust Companies and Other Nominees.
 (a)(4)  -- Letter from Brokers, Dealers, Commercial Banks, Trust Companies and Other
            Nominees to Clients.
 (a)(5)  -- Letter from the Automatic Dividend Reinvestment and Common Stock Purchase Plan of
            EMPHESYS Financial Group, Inc. to Participants.
 (a)(6)  -- Notice of Guaranteed Delivery.
 (a)(7)  -- Guidelines for Certification of Taxpayer Identification Number on Substitute Form
            W-9.
 (a)(8)  -- Summary Announcement, dated August 16, 1995.
 (a)(9)  -- Press Release issued by the Parent and the Company on August 10, 1995.
(a)(10)  -- Agreement and Plan of Merger, dated as of August 9, 1995, among the Parent, the
            Offeror and the Company.
(a)(11)  -- Press Release issued by the Parent on August 16, 1995.
 (b)(1)  -- Credit Agreement dated as of January 12, 1994, as amended by an Agreement and
            Amendment dated as of October 27, 1994, and an Amendment dated as of August 1,
            1995, among Chemical Bank as Agent, the Banks party thereto, and the Parent.
 (c)(1)  -- Stock Option and Tender Agreement, dated as of August 9, 1995, among the Parent,
            Lincoln National Corporation and American States Insurance Company.
    (d)  -- None.
    (e)  -- Not applicable.
    (f)  -- None.
</TABLE>
 
                                        8

<PAGE>   1
 
                           OFFER TO PURCHASE FOR CASH
 
                     ALL OUTSTANDING SHARES OF COMMON STOCK
 
                                       OF
 
                         EMPHESYS FINANCIAL GROUP, INC.
                                       AT
 
                              $37.50 NET PER SHARE
 
                                       BY
 
                                   HEW, INC.
                          A WHOLLY OWNED SUBSIDIARY OF
 
                                  HUMANA INC.
 
                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON FRIDAY, SEPTEMBER 15, 1995,
                         UNLESS THE OFFER IS EXTENDED.
 
     THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS, (i) THERE BEING VALIDLY
TENDERED BY THE EXPIRATION DATE AND NOT WITHDRAWN THAT NUMBER OF SHARES OF
COMMON STOCK OF EMPHESYS FINANCIAL GROUP, INC. REPRESENTING AT LEAST A MAJORITY
OF THE OUTSTANDING SHARES ON A FULLY DILUTED BASIS, (ii) THE OFFICE OF THE
COMMISSIONER OF INSURANCE OF WISCONSIN AND THE DEPARTMENT OF CORPORATIONS OF
CALIFORNIA HAVING ISSUED FINAL ORDERS APPROVING, EXEMPTING OR OTHERWISE
AUTHORIZING CONSUMMATION OF THE MERGER AND ALL OTHER TRANSACTIONS CONTEMPLATED
BY THE MERGER AGREEMENT REFERRED TO BELOW AS MAY REQUIRE SUCH AUTHORIZATION
(PROVIDED ANY SUCH ORDER DOES NOT IMPOSE TERMS OR CONDITIONS THAT MATERIALLY AND
ADVERSELY AFFECT THE ECONOMIC BENEFITS OF THE TRANSACTIONS CONTEMPLATED BY THE
MERGER AGREEMENT) AND (iii) SATISFACTION OF CERTAIN OTHER TERMS AND CONDITIONS.
SEE SECTION 15. THE MERGER AGREEMENT AND THE OFFER MAY BE TERMINATED BY HEW,
INC. IF, AMONG OTHER THINGS, EMPHESYS FINANCIAL GROUP, INC. DOES NOT ATTAIN
CERTAIN PERCENTAGES OF SPECIFIED FINANCIAL AND OPERATIONAL TARGETS.
 
     THE OFFER IS BEING MADE IN CONNECTION WITH THE AGREEMENT AND PLAN OF MERGER
DATED AS OF AUGUST 9, 1995, AMONG HUMANA INC., HEW, INC., AND EMPHESYS FINANCIAL
GROUP, INC. THE BOARD OF DIRECTORS OF EMPHESYS FINANCIAL GROUP, INC. HAS
APPROVED THE OFFER, THE MERGER AND THE MERGER AGREEMENT, HAS DETERMINED THAT THE
TERMS OF EACH OF THE OFFER AND THE MERGER AND THE TERMS OF THE MERGER AGREEMENT
ARE FAIR TO AND IN THE BEST INTERESTS OF THE COMPANY'S STOCKHOLDERS AND
RECOMMENDS THAT THE COMPANY'S STOCKHOLDERS ACCEPT THE OFFER AND TENDER THEIR
SHARES IN THE OFFER.
 
                                   IMPORTANT
 
     Any stockholder desiring to tender Shares of common stock should either (i)
complete and sign the Letter of Transmittal or a facsimile thereof in accordance
with the instructions in the Letter of Transmittal and deliver the Letter of
Transmittal with the Shares and all other required documents to the Depositary,
or follow the procedure for book-entry transfer set forth in Section 3 or (ii)
request his broker, dealer, commercial bank, trust company or other nominee to
effect the transaction for him. A stockholder having Shares registered in the
name of a broker, dealer, commercial bank, trust company or other nominee must
contact such person if he desires to tender his Shares.
 
     Any stockholder who desires to tender Shares and cannot deliver such Shares
and all other required documents to the Depositary by the expiration of the
Offer must tender such Shares pursuant to the guaranteed delivery procedure set
forth in Section 3.
 
     Questions and requests for assistance or additional copies of this Offer to
Purchase and the Letter of Transmittal may be directed to the Information Agent
or the Dealer Manager at their respective addresses and telephone numbers set
forth on the back cover of this Offer to Purchase.
                             ---------------------
                      The Dealer Manager for the Offer is
                               SMITH BARNEY INC.
 
August 16, 1995
<PAGE>   2
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                          PAGE
                                                                                          ----
<C>  <S>                                                                                  <C>
Introduction.............................................................................   1
  1. Terms of the Offer..................................................................   2
  2. Acceptance for Payment and Payment for Shares.......................................   4
  3. Procedure for Tendering Shares......................................................   5
  4. Withdrawal Rights...................................................................   7
  5. Certain Federal Income Tax Consequences.............................................   8
  6. Price Range of Shares; Dividends....................................................   9
  7. Effect of the Offer on NYSE Listing, Market for Shares and Registration Under
       the Exchange Act..................................................................   9
  8. Certain Information Concerning the Company..........................................  10
  9. Certain Information Concerning the Parent and the Offeror...........................  13
 10. Source and Amount of Funds..........................................................  14
 11. Background of the Offer; Past Contacts, Transactions or Negotiations with the
       Company...........................................................................  15
 12. Purpose of the Offer and the Merger; Plans for the Company..........................  21
 13. The Merger Agreement; the Stock Option and Tender Agreement.........................  22
 14. Dividends and Distributions.........................................................  32
 15. Certain Conditions to the Offeror's Obligations.....................................  32
 16. Certain Regulatory and Legal Matters................................................  34
 17. Fees and Expenses...................................................................  36
 18. Miscellaneous.......................................................................  36
Annex I.     Certain Information Concerning the Directors and Executive
              Officers of the Parent and the Offeror..................................... A-1
</TABLE>
 
                                        i
<PAGE>   3
 
TO THE HOLDERS OF COMMON STOCK OF
EMPHESYS FINANCIAL GROUP, INC.
 
                                  INTRODUCTION
 
     HEW, Inc., a Delaware corporation (the "Offeror") and a wholly owned
subsidiary of Humana Inc., a Delaware corporation (the "Parent"), hereby offers
to purchase all outstanding shares of Common Stock, par value $0.01 per share
(the "Shares"), of EMPHESYS Financial Group, Inc., a Delaware corporation (the
"Company"), at a purchase price of $37.50 per Share, net to the seller in cash,
without interest, upon the terms and subject to the conditions set forth in this
Offer to Purchase and in the related Letter of Transmittal (which together
constitute the "Offer"). Tendering holders of Shares will not be obligated to
pay brokerage fees or commissions or, except as set forth in the Letter of
Transmittal, transfer taxes on the purchase of Shares by the Offeror pursuant to
the Offer. The Offeror will pay all charges and expenses of Smith Barney Inc.
(the "Dealer Manager"), Chemical Mellon Shareholder Services (the "Depositary")
and D.F. King & Co., Inc. (the "Information Agent"), in connection with the
Offer.
 
     THE BOARD OF DIRECTORS OF THE COMPANY HAS APPROVED THE OFFER, THE MERGER
(AS HEREINAFTER DEFINED) AND THE MERGER AGREEMENT (AS HEREINAFTER DEFINED), HAS
DETERMINED THAT THE TERMS OF EACH OF THE OFFER, THE MERGER AND THE MERGER
AGREEMENT ARE FAIR TO AND IN THE BEST INTERESTS OF THE COMPANY'S STOCKHOLDERS,
AND RECOMMENDS THAT THE COMPANY'S STOCKHOLDERS ACCEPT THE OFFER AND TENDER THEIR
SHARES IN THE OFFER.
 
     THE OFFER IS CONDITIONED UPON, AMONG OTHER THINGS, THERE HAVING BEEN
VALIDLY TENDERED AND NOT WITHDRAWN PRIOR TO THE EXPIRATION OF THE OFFER A NUMBER
OF SHARES WHICH WILL REPRESENT NOT LESS THAN A MAJORITY OF THE SHARES
OUTSTANDING ON A FULLY DILUTED BASIS ON THE DATE OF PURCHASE (THE "MINIMUM
CONDITION"). THE OFFER IS ALSO CONDITIONED UPON THE OFFICE OF THE COMMISSIONER
OF INSURANCE OF WISCONSIN AND THE DEPARTMENT OF CORPORATIONS OF CALIFORNIA
HAVING ISSUED FINAL ORDERS APPROVING, EXEMPTING, OR OTHERWISE AUTHORIZING
CONSUMMATION OF THE MERGER AND ALL OTHER TRANSACTIONS CONTEMPLATED BY THE MERGER
AGREEMENT AS MAY REQUIRE SUCH AUTHORIZATION (PROVIDED ANY SUCH ORDER DOES NOT
IMPOSE TERMS OR CONDITIONS THAT MATERIALLY AND ADVERSELY AFFECT THE ECONOMIC
BENEFITS OF THE TRANSACTIONS CONTEMPLATED BY THE MERGER AGREEMENT) (THE
"INSURANCE APPROVALS"). THE OFFER IS ALSO SUBJECT TO OTHER TERMS AND CONDITIONS.
SEE SECTION 15. THE MERGER AGREEMENT AND THE OFFER MAY BE TERMINATED BY THE
OFFEROR AND THE PARENT IF, AMONG OTHER THINGS, THE COMPANY DOES NOT ATTAIN
CERTAIN PERCENTAGES OF SPECIFIED FINANCIAL AND OPERATIONAL TARGETS.
 
     Morgan Stanley & Co. Incorporated ("Morgan Stanley"), the Company's
financial advisor, has delivered to the Company's Board of Directors its written
opinion that the consideration to be received by the stockholders of the Company
pursuant to the Offer and the Merger is fair to such stockholders from a
financial point of view. A copy of such opinion is contained in the Company's
Statement on Schedule 14D-9 which is being distributed to the Company's
stockholders.
 
     The Offer is being made pursuant to the Agreement and Plan of Merger, dated
as of August 9, 1995 (the "Merger Agreement"), among the Parent, the Offeror and
the Company. The Merger Agreement provides that, among other things, as soon as
practicable after the purchase of Shares pursuant to the Offer and the
satisfaction of the other conditions set forth in the Merger Agreement and in
accordance with the relevant provisions of the General Corporation Law of the
State of Delaware ("DGCL"), the Offeror will be merged with and into the Company
(the "Merger"). See Section 12. Following consummation of the Merger, the
Company will continue as the surviving corporation (the "Surviving Corporation")
and will be a wholly owned subsidiary of the Parent. At the effective time of
the Merger (the "Effective Time"), each issued and outstanding Share (other than
Shares owned by the Company as treasury stock, Shares owned by any subsidiary of
the Company, Shares owned by the Parent or the Offeror or any subsidiary
thereof, or Shares with respect to which appraisal rights are properly exercised
under Delaware law ("Dissenting Shares")), will be converted into and represent
the right to receive $37.50 (or any higher price that may be paid for each Share
pursuant to the Offer) in cash, without interest thereon (the "Offer Price").
See Section 5 for a description of certain tax consequences of the Offer and the
Merger.
<PAGE>   4
 
     The Parent, Lincoln National Corporation, an Indiana corporation ("LNC"),
and American States Insurance Company, an Indiana corporation and a wholly owned
subsidiary of LNC (the "Selling Stockholder"), have entered into a Stock Option
and Tender Agreement, dated as of August 9, 1995 (the "Stock Option and Tender
Agreement"), pursuant to which the Selling Stockholder has given the Parent an
option to purchase at the Offer Price, upon the terms and subject to the
conditions set forth in the Stock Option and Tender Agreement, all 4,986,507
Shares (the "Subject Shares") beneficially owned by it, representing
approximately 29.2% of the outstanding Shares. The Stock Option and Tender
Agreement further provides, among other things, that the Selling Stockholder is
required to tender all of the Subject Shares in the Offer. See Section 13.
 
     The Merger Agreement provides that, promptly upon the purchase of Shares
pursuant to the Offer, the Parent will be entitled to designate for election to
the Board of Directors of the Company a number of directors (rounded up to the
next whole number) equal to that number of directors which equals the product of
(i) the total number of directors on such Board and (ii) the percentage that the
aggregate number of Shares purchased by the Offeror bears to the total number of
outstanding Shares. The Company has agreed, upon the request by the Parent, to
promptly increase the size of the Board of Directors of the Company and/or use
its reasonable best efforts to secure the resignations of such number of
directors as is necessary to enable the Parent's designees to be elected to the
Board and to cause the Parent's designees to be so elected.
 
     The Company has advised the Offeror that as of August 7, 1995, there were
(a) 17,063,893 Shares issued and outstanding, and (b) outstanding employee and
director stock options to purchase an aggregate of 653,700 Shares (of which
239,900 had exercise prices less than $37.50). As of the date hereof, neither
the Offeror nor the Parent beneficially owns any Shares (other than as a result
of the Stock Option and Tender Agreement). If the Offeror acquires at least
8,858,797 Shares in the Offer, it will control a majority of the outstanding
Shares on a fully diluted basis. Accordingly, the Offeror would have sufficient
voting power to approve the Merger without the affirmative vote of any other
stockholder. In the event the Offeror acquires 90% or more of the outstanding
Shares through the Offer, the Offeror and the Parent would be able to effect the
Merger pursuant to the short form merger provisions of the DGCL, without prior
notice to, or any action by, any other stockholder of the Company.
 
     ON AUGUST 2, 1995, THE COMPANY DECLARED A QUARTERLY DIVIDEND OF $0.15 PER
SHARE, PAYABLE ON SEPTEMBER 15, 1995, TO STOCKHOLDERS OF RECORD ON SEPTEMBER 1,
1995. TENDERING SHARES PURSUANT TO THE OFFER WILL NOT AFFECT THE RIGHT OF
STOCKHOLDERS OF RECORD ON SEPTEMBER 1, 1995 TO RECEIVE THIS DIVIDEND.
 
     THIS OFFER TO PURCHASE AND THE RELATED LETTER OF TRANSMITTAL CONTAIN
IMPORTANT INFORMATION WHICH SHOULD BE READ BEFORE ANY DECISION IS MADE WITH
RESPECT TO THE OFFER.
 
1. TERMS OF THE OFFER.
 
     Upon the terms and subject to the conditions of the Offer (including, if
the Offer is extended or amended, the terms and conditions of any extension or
amendment), the Offeror will accept for payment and pay for all Shares validly
tendered prior to the Expiration Date and not theretofore withdrawn in
accordance with Section 4. The term "Expiration Date" means 12:00 Midnight, New
York City time, on Friday, September 15, 1995, unless the Offeror shall have
extended the period of time for which the Offer is open, in which event the term
"Expiration Date" shall mean the latest time and date at which the Offer, as so
extended by the Offeror, shall expire.
 
     If the Offeror shall decide, in its sole discretion, to increase the
consideration offered in the Offer to holders of Shares and if, at the time that
notice of such increase is first published, sent or given to holders of Shares
in the manner specified below, the Offer is scheduled to expire at any time
earlier than the expiration of a period ending on the tenth business day from,
and including, the date that such notice is first so published, sent or given,
then the Offer will be extended until the expiration of such period of ten
business days. For purposes of the Offer, a "business day" means any day other
than a Saturday, Sunday or a federal holiday, and consists of the time period
from 12:01 a.m. through 12:00 Midnight, New York City time.
 
                                        2
<PAGE>   5
 
     THE OFFER IS CONDITIONED UPON SATISFACTION OF THE MINIMUM CONDITION AND
RECEIPT OF THE INSURANCE APPROVALS. THE MERGER AGREEMENT AND THE OFFER MAY BE
TERMINATED BY THE OFFEROR AND THE PARENT IF, AMONG OTHER THINGS, THE COMPANY
DOES NOT ATTAIN CERTAIN PERCENTAGES OF SPECIFIED FINANCIAL AND OPERATIONAL
TARGETS. THE OFFER IS ALSO SUBJECT TO OTHER TERMS AND CONDITIONS. SEE SECTION
15. The Offeror reserves the right (but shall not be obligated), in accordance
with applicable rules and regulations of the United States Securities and
Exchange Commission (the "Commission"), subject to the limitations set forth in
the Merger Agreement and described below, to waive or reduce the Minimum
Condition or to waive any other condition to the Offer. If the Insurance
Approvals have not been received, or the Minimum Condition or any of the other
conditions set forth in Section 15, have not been satisfied, by 12:00 Midnight,
New York City time, on Friday, September 15, 1995 (or any other time then set as
the Expiration Date), the Offeror may, subject to the terms of the Merger
Agreement as described below, elect to (1) extend the Offer and, subject to
applicable withdrawal rights, retain all tendered Shares until the expiration of
the Offer, as extended, (2) subject to complying with applicable rules and
regulations of the Commission, accept for payment all Shares so tendered and not
extend the Offer, or (3) terminate the Offer and not accept for payment any
Shares and return all tendered Shares to tendering stockholders. Under the terms
of the Merger Agreement, the Offeror may not (except as described in the next
sentence), without prior written consent of the Company, waive the Minimum
Condition, reduce the number of Shares subject to the Offer, reduce the price
per Share to be paid pursuant to the Offer, extend the Offer if all of the Offer
conditions are satisfied or waived, change the form of consideration payable in
the Offer, or amend, add or waive any term or condition of the Offer in any
manner that would adversely affect the Company or its stockholders.
Notwithstanding the foregoing, the Offeror may, without the consent of the
Company, extend the Offer (i) if, at the then scheduled Expiration Date of the
Offer, any of the conditions shall not have been satisfied or waived, until the
later of (x) any period during which the Offer may remain open pursuant to
clauses (ii) - (v) below, and (y) the fifth business day after the Offeror
reasonably believes to be the earliest date on which such conditions may be
satisfied; (ii) for any period required by any rule, regulation, interpretation
or position of the Commission or the Commission staff applicable to the Offer;
(iii) if the Company shall have failed to reject a competing offer to acquire
control of the Company within 10 business days after receipt by the Company or
public announcement thereof, for up to three business days after the then
scheduled Expiration Date; (iv) if all Offer conditions are satisfied or waived
but the number of Shares tendered is less than 90% of the then outstanding
number of Shares, for an aggregate period of not more than 15 business days (for
all such extensions) beyond the latest expiration date that would be permitted
under clause (i), (ii), or (iii) of this sentence; and (v) if all the Offer
conditions are satisfied or waived but the number of Shares tendered is less
than 90% of the then outstanding number of Shares, for an aggregate period of
not more than 10 business days (for all such extensions) beyond the latest
expiration date that would be permitted under clause (i), (ii), (iii), or (iv)
of this sentence, provided that the Offeror shall acknowledge that, except in
the case of an occurrence of an event that would cause the condition in clause
(b) described under "The Merger Agreement -- Conditions Precedent" in Section 13
(which condition provides that no governmental entity or court of competent
jurisdiction shall have enacted a rule or issued an injunction that has the
effect of prohibiting the consummation of the Merger) not to be satisfied, all
the Offer conditions shall be deemed to be waived, and all Shares which are
validly tendered and not withdrawn shall be accepted and purchased upon the
expiration of such extended period. In addition to the right of the Offeror to
extend the Offer pursuant to the previous sentence, the Offeror shall have the
right to extend the Offer until five business days from the date on which the
Offeror receives all certificates relating to the Company's financial and
operational performance as described under "The Merger Agreement -- Performance
Certificates" in Section 13 required to have been delivered on or prior to the
scheduled Expiration Date in effect prior to the extension permitted by this
sentence. The obligation of the Company to provide these certificates and the
right of the Parent to terminate the Merger Agreement if certain percentages of
specified financial and operational targets are not attained will remain in
effect until the Offeror acquires Shares pursuant to the Offer without affecting
the right of the Offeror to extend the Offer pursuant to clause (iv) above;
provided, however, that if the Offeror exercises its right to extend the Offer
pursuant to clause (v) above, the Company's obligation to provide certificates
relating to the Company's financial and operational performance shall cease and
the Parent shall have no further right to terminate the Merger Agreement as a
result of the Company not attaining certain percentages of specified financial
and operational targets.
 
                                        3
<PAGE>   6
 
     Subject to the limitations set forth in the Merger Agreement and described
below, the Offeror reserves the right (but will not be obligated), at any time
or from time to time in its sole discretion, to extend the period during which
the Offer is open by giving oral or written notice of such extension to the
Depositary and by making a public announcement of such extension. There can be
no assurance that the Offeror will exercise its right to extend the Offer.
 
     Subject to the applicable rules and regulations of the Commission and
subject to the limitations set forth in the Merger Agreement, the Offeror also
expressly reserves the right, at any time and from time to time, in its sole
discretion, (i) to delay payment for any Shares regardless of whether such
Shares were theretofore accepted for payment, or to terminate the Offer and not
to accept for payment or pay for any Shares not theretofore accepted for payment
or paid for, upon the occurrence of any of the conditions set forth in Section
15, by giving oral or written notice of such delay or termination to the
Depositary, and (ii) at any time or from time to time, to amend the Offer in any
respect. The Offeror's right to delay payment for any Shares or not to pay for
any Shares theretofore accepted for payment is subject to the applicable rules
and regulations of the Commission, including Rule 14e-1(c) under the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), relating to the Offeror's
obligation to pay for or return tendered Shares promptly after the termination
or withdrawal of the Offer.
 
     Any extension of the period during which the Offer is open, delay in
acceptance for payment or payment, termination or amendment of the Offer will be
followed, as promptly as practicable, by public announcement thereof, such
announcement in the case of an extension to be issued not later than 9:00 a.m.,
New York City time, on the next business day after the previously scheduled
Expiration Date in accordance with the public announcement requirements of Rules
14d-4(c) and 14e-1(d) under the Exchange Act. Without limiting the obligation of
the Offeror under such rule or the manner in which the Offeror may choose to
make any public announcement, the Offeror currently intends to make
announcements by issuing a press release to the Dow Jones News Service and
making any appropriate filing with the Commission.
 
     If the Offeror makes a material change in the terms of the Offer or the
information concerning the Offer, or if it waives a material condition of the
Offer (including a waiver of the Minimum Condition), the Offeror will
disseminate additional tender offer materials and extend the Offer if and to the
extent required by Rules 14d-4(c), 14d-6(d) and 14e-1 under the Exchange Act or
otherwise. The minimum period during which a tender offer must remain open
following material changes in the terms of the offer or the information
concerning the offer, other than a change in price or a change in percentage of
securities sought, will depend upon the facts and circumstances, including the
relative materiality of the terms or information changes. With respect to a
change in price or a change in percentage of securities sought, a minimum ten
business day period is generally required to allow for adequate dissemination to
stockholders and investor response.
 
     The Company has provided the Offeror with the Company's list of
stockholders and security position listings for the purpose of disseminating the
Offer to holders of Shares. This Offer to Purchase and the Letter of Transmittal
will be mailed to record holders of the Shares and will be furnished to brokers,
dealers, commercial banks, trust companies and similar persons whose names, or
the names of whose nominees, appear on the list of stockholders or, if
applicable, who are listed as participants in a clearing agency's security
position listing for subsequent transmittal to beneficial owners of Shares.
 
2. ACCEPTANCE FOR PAYMENT AND PAYMENT FOR SHARES.
 
     Upon the terms and subject to the conditions of the Offer (including, if
the Offer is extended or amended, the terms and conditions of any such extension
or amendment), the Offeror will accept for payment and will pay for, all Shares
validly tendered prior to the Expiration Date and not theretofore withdrawn in
accordance with Section 4 promptly after the later to occur of (a) the
Expiration Date and (b) subject to compliance with Rule 14e-1(c) under the
Exchange Act, the satisfaction or waiver of the conditions set forth in Section
15. Subject to compliance with Rule 14e-1(c) under the Exchange Act, the Offeror
expressly reserves the right to delay payment for Shares in order to comply in
whole or in part with any applicable law. See Sections 1 and 16. In all cases,
payment for Shares accepted for payment pursuant to the Offer will be made only
after timely
 
                                        4
<PAGE>   7
 
receipt by the Depositary of (i) certificates for such Shares or timely
confirmation (a "Book-Entry Confirmation") of a book-entry transfer of such
Shares into the Depositary's account at The Depository Trust Company, the
Midwest Securities Trust Company or the Philadelphia Depository Trust Company
(collectively, the "Book-Entry Transfer Facilities"), pursuant to the procedures
set forth in Section 3, (ii) a properly completed and duly executed Letter of
Transmittal (or a manually signed facsimile thereof) with all required signature
guarantees or, in the case of a book-entry transfer, an Agent's Message (as
defined below) and (iii) any other documents required by the Letter of
Transmittal.
 
     The term "Agent's Message" means a message transmitted by a Book-Entry
Transfer Facility to, and received by, the Depositary and forming a part of a
Book-Entry Confirmation, which states that such Book-Entry Transfer Facility has
received an express acknowledgment from the participant in such Book-Entry
Transfer Facility tendering the Shares that such participant has received and
agrees to be bound by the terms of the Letter of Transmittal and that the
Offeror may enforce such agreement against the participant.
 
     For purposes of the Offer, the Offeror will be deemed to have accepted for
payment, and thereby purchased, Shares validly tendered and not withdrawn as, if
and when the Offeror gives oral or written notice to the Depositary of the
Offeror's acceptance of such Shares for payment. In all cases, payment for
Shares purchased pursuant to the Offer will be made by deposit of the purchase
price with the Depositary, which will act as agent for tendering stockholders
for the purpose of receiving payment from the Offeror and transmitting such
payment to tendering stockholders. If, for any reason whatsoever, acceptance for
payment of any Shares tendered pursuant to the Offer is delayed, or the Offeror
is unable to accept for payment Shares tendered pursuant to the Offer, then,
without prejudice to the Offeror's rights under Section 1, the Depositary may,
nevertheless, on behalf of the Offeror, retain tendered Shares, and such Shares
may not be withdrawn, except to the extent that the tendering stockholders are
entitled to withdrawal rights as described in Section 4 below and as otherwise
required by Rule 14e-1(c) under the Exchange Act. Under no circumstances will
interest be paid by the Offeror because of any delay in making such payment.
 
     If any tendered Shares are not accepted for payment pursuant to the terms
and conditions of the Offer for any reason, or if certificates are submitted for
more Shares than are tendered, certificates for such unpurchased or untendered
Shares will be returned, without expense to the tendering stockholder (or, in
the case of Shares delivered by book-entry transfer to a Book-Entry Transfer
Facility, such Shares will be credited to an account maintained within such
Book-Entry Transfer Facility), as promptly as practicable after the expiration,
termination or withdrawal of the Offer.
 
     If, prior to the Expiration Date, the Offeror increases the price being
paid for Shares accepted for payment pursuant to the Offer, such increased
consideration will be paid to all stockholders whose Shares are purchased
pursuant to the Offer.
 
3. PROCEDURE FOR TENDERING SHARES.
 
     Valid Tenders. For Shares to be validly tendered pursuant to the Offer, a
properly completed and duly executed Letter of Transmittal (or a manually signed
facsimile thereof), with any required signature guarantees, or, in the case of a
book-entry transfer, an Agent's Message, and any other required documents, must
be received by the Depositary at one of its addresses set forth on the back
cover of this Offer to Purchase prior to the Expiration Date, or the tendering
stockholder must comply with the guaranteed delivery procedures set forth below.
In addition, either (i) certificates representing such Shares must be received
by the Depositary or such Shares must be tendered pursuant to the procedure for
book-entry transfer set forth below, and a Book-Entry Confirmation must be
received by the Depositary, in each case prior to the Expiration Date, or (ii)
the guaranteed delivery procedures set forth below must be complied with. No
alternative, conditional or contingent tenders will be accepted. DELIVERY OF
DOCUMENTS TO A BOOK-ENTRY TRANSFER FACILITY IN ACCORDANCE WITH SUCH BOOK-ENTRY
TRANSFER FACILITY'S PROCEDURES DOES NOT CONSTITUTE DELIVERY TO THE DEPOSITARY.
 
     Book-Entry Transfer. The Depositary will make a request to establish an
account with respect to the Shares at each Book-Entry Transfer Facility for
purposes of the Offer within two business days after the date of this Offer to
Purchase. Any financial institution that is a participant in a Book-Entry
Transfer Facility's
 
                                        5
<PAGE>   8
 
system may make book-entry delivery of Shares by causing a Book-Entry Transfer
Facility to transfer such Shares into the Depositary's account at a Book-Entry
Transfer Facility in accordance with such Book-Entry Transfer Facility's
procedures for transfer. Although delivery of Shares may be effected through
book-entry at a Book-Entry Transfer Facility prior to the Expiration Date, (i)
the Letter of Transmittal (or a manually signed facsimile thereof), properly
completed and duly executed, with any required signature guarantees, or an
Agent's Message in connection with a book-entry transfer, and any other required
documents, must, in any case, be transmitted to and received by the Depositary
at one of its addresses set forth on the back cover of this Offer to Purchase or
(ii) the guaranteed delivery procedures described below must be complied with.
 
     Signature Guarantee. Signatures on the Letter of Transmittal must be
guaranteed by a member in good standing of the Securities Transfer Agents
Medallion Program, or by any other bank, broker, dealer, credit union, savings
association or other entity which is an "eligible guarantor institution," as
such term is defined in Rule 17Ad-15 under the Exchange Act (each of the
foregoing being referred to as an "Eligible Institution" and, collectively, as
"Eligible Institutions"), unless the Shares tendered thereby are tendered (i) by
a registered holder of Shares who has not completed either the box labeled
"Special Delivery Instructions" or the box labeled "Special Payment
Instructions" on the Letter of Transmittal or (ii) for the account of any
Eligible Institution. If the certificates evidencing Shares are registered in
the name of a person or persons other than the signer of the Letter of
Transmittal, or if payment is to be made, or delivered to, or certificates for
unpurchased Shares are to be issued or returned to, a person other than the
registered owner or owners, then the tendered certificates must be endorsed or
accompanied by duly executed stock powers, in either case signed exactly as the
name or names of the registered owner or owners appear on the certificates, with
the signatures on the certificates or stock powers guaranteed by an Eligible
Institution as provided in the Letter of Transmittal. See Instructions 1 and 5
to the Letter of Transmittal.
 
     Guaranteed Delivery. If a stockholder desires to tender Shares pursuant to
the Offer and such stockholder's certificates for Shares are not immediately
available or time will not permit all required documents to reach the Depositary
prior to the Expiration Date or the procedure for book-entry transfer cannot be
completed on a timely basis, such Shares may nevertheless be tendered if all of
the following guaranteed delivery procedures are duly complied with:
 
          (i) the tender is made by or through an Eligible Institution;
 
          (ii) a properly completed and duly executed Notice of Guaranteed
     Delivery, substantially in the form provided by the Offeror herewith, is
     received by the Depositary, as provided below, prior to the Expiration
     Date; and
 
          (iii) the certificates for all tendered Shares, in proper form for
     transfer (or a Book-Entry Confirmation), together with a properly completed
     and duly executed Letter of Transmittal (or a manually signed facsimile
     thereof), and any required signature guarantees, or, in the case of a
     book-entry transfer, an Agent's Message, and any other documents required
     by the Letter of Transmittal are received by the Depositary within three
     New York Stock Exchange ("NYSE") trading days after the date of such Notice
     of Guaranteed Delivery.
 
     The Notice of Guaranteed Delivery may be delivered by hand or transmitted
by telegram, telex, facsimile transmission or mail to the Depositary and must
include a guarantee by an Eligible Institution in the form set forth in the
Notice of Guaranteed Delivery.
 
     THE METHOD OF DELIVERY OF SHARES, THE LETTER OF TRANSMITTAL AND ALL OTHER
REQUIRED DOCUMENTS, INCLUDING DELIVERY THROUGH ANY BOOK-ENTRY TRANSFER FACILITY,
IS AT THE OPTION AND RISK OF THE TENDERING STOCKHOLDER. IF DELIVERY IS BY MAIL,
REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS RECOMMENDED.
 
     Notwithstanding any other provision hereof, payment for Shares accepted for
payment pursuant to the Offer will in all cases be made only after timely
receipt by the Depositary of (i) certificates for such Shares or a Book-Entry
Confirmation, (ii) a properly completed and duly executed Letter of Transmittal
(or a manually signed facsimile thereof), with all required signature
guarantees, or, in the case of a book-entry transfer, an Agent's Message, and
(iii) any other documents required by the Letter of Transmittal.
 
                                        6
<PAGE>   9
 
     BACKUP FEDERAL INCOME TAX WITHHOLDING. TO PREVENT BACKUP FEDERAL INCOME TAX
WITHHOLDING WITH RESPECT TO PAYMENT OF THE PURCHASE PRICE OF SHARES PURCHASED
PURSUANT TO THE OFFER, EACH STOCKHOLDER MUST PROVIDE THE DEPOSITARY WITH HIS
CORRECT TAXPAYER IDENTIFICATION NUMBER ("TIN") AND CERTIFY THAT HE IS NOT
SUBJECT TO BACKUP FEDERAL INCOME TAX WITHHOLDING BY COMPLETING THE SUBSTITUTE
FORM W-9 INCLUDED IN THE LETTER OF TRANSMITTAL. SEE INSTRUCTION 8 SET FORTH IN
THE LETTER OF TRANSMITTAL.
 
     Determination of Validity. All questions as to the form of documents and
the validity, eligibility (including time of receipt) and acceptance for payment
of any tender of Shares will be determined by the Offeror, in its sole
discretion, and its determination will be final and binding on all parties. The
Offeror reserves the absolute right to reject any or all tenders of any Shares
that are determined by it not to be in proper form or the acceptance of or
payment for which may, in the opinion of the Offeror, be unlawful. The Offeror
also reserves the absolute right to waive any of the conditions of the Offer,
subject to the limitations set forth in the Merger Agreement, or any defect or
irregularity in the tender of any Shares. The Offeror's interpretation of the
terms and conditions of the Offer (including the Letter of Transmittal and the
Instructions to the Letter of Transmittal) will be final and binding on all
parties. No tender of Shares will be deemed to have been validly made until all
defects and irregularities have been cured or waived. None of the Offeror, the
Parent, the Dealer Manager, the Depositary, the Information Agent or any other
person will be under any duty to give notification of any defects or
irregularities in tenders or incur any liability for failure to give any such
notification.
 
     Other Requirements. By executing the Letter of Transmittal as set forth
above, a tendering stockholder irrevocably appoints designees of the Offeror as
such stockholder's proxies, each with full power of substitution, in the manner
set forth in the Letter of Transmittal, to the full extent of such stockholder's
right with respect to the Shares tendered by such stockholder and accepted for
payment by the Offeror (and any and all other Shares or other securities or
rights issued or issuable in respect of such Shares on or after August 7, 1995).
All such proxies shall be considered coupled with an interest in the tendered
Shares. This appointment is effective when, and only to the extent that, the
Offeror accepts for payment the Shares deposited with the Depositary. Upon
acceptance for payment, all prior proxies given by the stockholder with respect
to such Shares or other securities or rights will, without further action, be
revoked and no subsequent proxies may be given or written consent executed (and,
if given or executed, will not be deemed effective). The designees of the
Offeror will, with respect to the Shares and other securities or rights, be
empowered to exercise all voting and other rights of such stockholder as they in
their sole judgment deem proper in respect of any annual or special meeting of
the Company's stockholders, or any adjournment or postponement thereof. The
Offeror reserves the right to require that, in order for Shares to be deemed
validly tendered, immediately upon the Offeror's payment for such Shares, the
Offeror must be able to exercise full voting and other rights with respect to
such Shares and the other securities or rights issued or issuable in respect of
such Shares, including voting at any meeting of stockholders (whether annual or
special or whether or not adjourned) in respect of such Shares.
 
4. WITHDRAWAL RIGHTS.
 
     Except as otherwise provided in this Section 4, tenders of Shares made
pursuant to the Offer are irrevocable. Shares tendered pursuant to the Offer may
be withdrawn at any time prior to the Expiration Date and, unless theretofore
accepted for payment pursuant to the Offer, may also be withdrawn at any time
after Saturday, October 14, 1995. If purchase of or payment for Shares is
delayed for any reason or if the Offeror is unable to purchase or pay for Shares
for any reason, then, without prejudice to the Offeror's rights under the Offer,
tendered Shares may be retained by the Depositary on behalf of the Offeror and
may not be withdrawn except to the extent that tendering stockholders are
entitled to withdrawal rights as set forth in this Section 4, subject to Rule
14e-1(c) under the Exchange Act, which provides that no person who makes a
tender offer shall fail to pay the consideration offered or return the
securities deposited by or on behalf of security holders promptly after the
termination or withdrawal of the Offer.
 
     For a withdrawal to be effective, a written, telegraphic, telex or
facsimile transmission notice of withdrawal must be timely received by the
Depositary at one of its addresses set forth on the back cover of this Offer to
Purchase. Any notice of withdrawal must specify the name of the person who
tendered the Shares to
 
                                        7
<PAGE>   10
 
be withdrawn, the number of Shares to be withdrawn and the name in which the
certificates representing such Shares are registered, if different from that of
the person who tendered the Shares. If certificates for Shares to be withdrawn
have been delivered or otherwise identified to the Depositary, then, prior to
the physical release of such certificates, the serial numbers shown on such
certificates must be submitted to the Depositary and, unless such Shares have
been tendered by an Eligible Institution, the signatures on the notice of
withdrawal must be guaranteed by an Eligible Institution. If Shares have been
tendered pursuant to the procedure for book-entry transfer set forth in Section
3, any notice of withdrawal must also specify the name and number of the account
at the applicable Book-Entry Transfer Facility to be credited with the withdrawn
Shares. All questions as to the form and validity (including time of receipt) of
notices of withdrawal will be determined by the Offeror, in its sole discretion,
and its determination will be final and binding on all parties. None of the
Offeror, the Parent, the Dealer Manager, the Depositary, the Information Agent
or any other person will be under any duty to give notification of any defects
or irregularities in any notice of withdrawal or incur any liability for failure
to give any such notification.
 
     Any Shares properly withdrawn will be deemed not validly tendered for
purposes of the Offer, but may be retendered at any subsequent time prior to the
Expiration Date by following any of the procedures described in Section 3.
 
5. CERTAIN FEDERAL INCOME TAX CONSEQUENCES.
 
     The following is a summary of the principal federal income tax consequences
of the Offer and the Merger to holders whose Shares are purchased pursuant to
the Offer or whose Shares are converted to cash in the Merger (including
pursuant to the exercise of appraisal rights). The discussion applies only to
holders of Shares in whose hands Shares are capital assets, and may not apply to
Shares received pursuant to the exercise of employee stock options or otherwise
as compensation, or to holders of Shares who are in special tax situations (such
as insurance companies, tax-exempt organizations or non-U.S. persons).
 
     THE FEDERAL INCOME TAX CONSEQUENCES SET FORTH BELOW ARE INCLUDED FOR
GENERAL INFORMATIONAL PURPOSES ONLY AND ARE BASED UPON CURRENT LAW. BECAUSE
INDIVIDUAL CIRCUMSTANCES MAY DIFFER, EACH HOLDER OF SHARES SHOULD CONSULT SUCH
HOLDER'S OWN TAX ADVISOR TO DETERMINE THE APPLICABILITY OF THE RULES DISCUSSED
BELOW TO SUCH STOCKHOLDER AND THE PARTICULAR TAX EFFECTS OF THE OFFER AND THE
MERGER, INCLUDING THE APPLICATION AND EFFECT OF STATE, LOCAL AND OTHER INCOME
TAX LAWS.
 
     The receipt of cash for Shares pursuant to the Offer or the Merger
(including pursuant to the exercise of appraisal rights) will be a taxable
transaction for federal income tax purposes (and also may be a taxable
transaction under applicable state, local and other income tax laws). In
general, for federal income tax purposes, a holder of Shares will recognize gain
or loss equal to the difference between his adjusted tax basis in the Shares
sold pursuant to the Offer or converted to cash in the Merger and the amount of
cash received therefor. Gain or loss must be determined separately for each
block of Shares (i.e., Shares acquired at the same cost in a single transaction)
sold pursuant to the Offer or converted to cash in the Merger. Such gain or loss
will be capital gain or loss (other than, with respect to the exercise of
appraisal rights, amounts, if any, which are or are deemed to be interest for
federal income tax purposes, which amounts will be taxed as ordinary income) and
will be long-term gain or loss if, on the date of sale (or, if applicable, the
date of the Merger), the Shares were held for more than one year.
 
     Payments in connection with the Offer or the Merger may be subject to
"backup withholding" at a rate of 31%. Backup withholding generally applies if
the stockholder (a) fails to furnish his social security number or TIN, (b)
furnishes an incorrect TIN, (c) fails to properly include a reportable interest
or dividend payment on his federal income tax return, or (d) under certain
circumstances, fails to provide a certified statement, signed under penalties of
perjury, that the TIN provided is his correct number and that he is not subject
to backup withholding. Backup withholding is not an additional tax but merely an
advance payment, which may be refunded to the extent it results in an
overpayment of tax. Certain persons generally are entitled to exemption from
backup withholding, including corporations and financial institutions. Certain
penalties apply for failure to furnish correct information and for failure to
include reportable payments in income. Each stockholder should consult with his
own tax advisor as to his qualification for exemption from backup
 
                                        8
<PAGE>   11
 
withholding and the procedure for obtaining such exemption. Tendering
stockholders may be able to prevent backup withholding by completing the
Substitute Form W-9 included in the Letter of Transmittal. See Section 3.
 
6. PRICE RANGE OF SHARES; DIVIDENDS.
 
     The Shares are principally traded on the NYSE. The following table sets
forth for the periods indicated the high and low sales prices per Share on the
NYSE Composite Tape based on published financial sources.
 
<TABLE>
<CAPTION>
                                                                        HIGH     LOW
                                                                        ----     ----
        <S>                                                             <C>      <C>
        FISCAL 1994:
          First Quarter(1)............................................  $23     $21 7/8
          Second Quarter..............................................   32      21 1/4
          Third Quarter...............................................   35  1/8 27 1/4
          Fourth Quarter..............................................   38  1/2 28 1/8
        FISCAL 1995:
          First Quarter...............................................  $39  1/2 $31 1/4
          Second Quarter..............................................   36       23 1/2
          Third Quarter (through August 15, 1995).....................   36 13/16 22 5/8
</TABLE>
 
---------------
 
(1) The Shares began trading on the NYSE on March 15, 1994 under the symbol
    "EFG." Prior to such time, the Company was a wholly owned subsidiary of LNC.
 
     On August 9, 1995, the last full day of trading prior to the public
announcement of the execution of the Merger Agreement, the closing price per
Share as reported on the NYSE Composite Tape was $27 3/8. On August 15, 1995,
the last full day of trading prior to the commencement of the Offer, the closing
price per Share as reported on the NYSE Composite Tape was $36 1/4.
 
  Stockholders are urged to obtain current market quotations for the Shares.
 
     The Company has paid regular quarterly dividends at $0.15 per Share since
its spinoff from LNC. On August 2, 1995, the Company declared a quarterly
dividend of $0.15 per Share, payable on September 15, 1995, to stockholders of
record on September 1, 1995. Tendering Shares pursuant to the Offer will not
affect the right of stockholders of record on September 1, 1995 to receive this
dividend. Under the terms of the Merger Agreement, the Company is prohibited
from paying any further dividends.
 
7. EFFECT OF THE OFFER ON NYSE LISTING, MARKET FOR SHARES AND REGISTRATION UNDER
   THE EXCHANGE ACT.
 
     The purchase of the Shares by the Offeror pursuant to the Offer will reduce
the number of Shares that might otherwise trade publicly and will reduce the
number of holders of Shares, which will adversely affect the liquidity and
market value of the remaining Shares held by stockholders other than the
Offeror. The Company has advised the Offeror that, as of August 7, 1995, there
were approximately 500 stockholders of record and approximately 12,100
beneficial owners of the Shares.
 
     Depending upon the number of Shares purchased pursuant to the Offer, the
Shares may no longer meet the standards for continued inclusion in the NYSE. If
trading volume were lower than such standards, quotations might continue to be
published in the "additional list" or in one of the "local lists," or such
quotations might not be published at all. If the number of holders of Shares
falls below 300, the NYSE might cease to provide quotations but quotations might
still be available from other sources. The Offeror cannot predict whether the
NYSE trading volume standards for publication will be met after the Offer.
 
     The Shares are currently registered under the Exchange Act. Such
registration may be terminated upon application by the Company to the Commission
if there are fewer than 300 record holders of Shares. It is the intention of the
Offeror to seek to cause an application for such termination to be made as soon
after consummation of the Offer as the requirements for termination of
registration of the Shares are met. If such
 
                                        9
<PAGE>   12
 
registration were terminated, the Company would no longer legally be required to
disclose publicly in proxy materials distributed to stockholders the information
which it now must provide under the Exchange Act or to make public disclosure of
financial and other information in annual, quarterly and other reports required
to be filed with the Commission under the Exchange Act; and the officers,
directors and 10% stockholders of the Company would no longer be subject to the
"short-swing" insider trading reporting and profit recovery provisions of the
Exchange Act. Furthermore, if such registration were terminated, persons holding
"restricted securities" of the Company may be deprived of their ability to
dispose of such securities under Rule 144 promulgated under the Securities Act
of 1933, as amended.
 
     The Shares are currently "margin securities" under the regulations of the
Board of Governors of the Federal Reserve System (the "Federal Reserve Board"),
which has the effect, among other things, of allowing brokers to extend credit
on the collateral of the Shares. Depending upon factors similar to those
described above regarding listing and market quotations, it is possible that,
following the Offer, the Shares would no longer constitute "margin securities"
for the purposes of the margin regulations of the Federal Reserve Board and
therefore could no longer be used as collateral for loans made by brokers. If
registration of Shares under the Exchange Act were terminated, the Shares would
no longer be "margin securities".
 
8. CERTAIN INFORMATION CONCERNING THE COMPANY.
 
     The Company is a Delaware corporation with its principal executive offices
located at 1100 Employers Boulevard, DePere, Wisconsin 54115. Except as
otherwise set forth herein, the information concerning the Company contained in
this Offer to Purchase, including financial information, has been furnished by
the Company or has been taken from or based upon publicly available documents
and records on file with the Commission and other public sources. Although
neither the Offeror nor the Parent has any knowledge that would indicate that
statements contained herein based upon such documents are untrue, neither the
Offeror, the Parent nor the Dealer Manager assumes any responsibility for the
accuracy or completeness of the information concerning the Company, furnished by
the Company, or contained in such documents and records or for any failure by
the Company to disclose events which may have occurred or may affect the
significance or accuracy of any such information but which are unknown to the
Offeror and the Parent.
 
     Employers' Health Insurance Company ("EHI"), the principal operating
subsidiary of the Company, began insurance operations in 1977. EHI is licensed
to sell its managed care products in 47 states (although approximately 80% of
its business is concentrated in 10 states) and, according to the Company's
Annual Report on Form 10-K for the year ended December 31, 1994, EHI is now the
tenth largest commercial group health insurance company in the country based
upon 1993 annual statutory premiums.
 
                                       10
<PAGE>   13
 
     Set forth below is certain summary consolidated financial data with respect
to the Company excerpted or derived from financial information contained in the
Company's Annual Report on Form 10-K for the year ended December 31, 1994, and
the Company's Quarterly Report on Form 10-Q for the quarter ended June 30, 1995.
More comprehensive financial information is included in such reports and other
documents filed by the Company with the Commission, and the following summary is
qualified in its entirety by reference to such reports and such other documents
and all the financial information (including any related notes) contained
therein. Such reports and other documents should be available for inspection and
copies thereof should be obtainable in the manner set forth below.
 
                         EMPHESYS FINANCIAL GROUP, INC.
                      SUMMARY CONSOLIDATED FINANCIAL DATA
                             (DOLLARS IN MILLIONS)
 
<TABLE>
<CAPTION>
                                                               AS OF AND
                                                              FOR THE SIX      AS OF AND FOR THE
                                                             MONTHS ENDED         YEAR ENDED
                                                               JUNE 30,          DECEMBER 31,
                                                             -------------     -----------------
                                                             1995     1994      1994       1993
                                                             ----     ----     ------     ------
<S>                                                          <C>      <C>      <C>        <C>
INCOME STATEMENT DATA
Premiums (including administrative fees)...................  $798     $688     $1,412     $1,255
Interest and other income..................................    28       25         50         50
Income from operations.....................................    51       54        105         90
Interest expense...........................................     2        1          3         --
Income before income taxes and cumulative effect of changes
  in accounting principle..................................    49       53        102         90
Net income(a)..............................................    31       33         64         55
BALANCE SHEET DATA
Total assets...............................................  $880     $801     $  826     $  794
Total common stockholders' equity..........................   364      293        301        340
Total market capitalization(b).............................   403      507        541
</TABLE>
 
---------------
 
(a) Net income for the year ended December 31, 1993 includes the cumulative
    effect of changes in accounting principle for post-retirement benefits ($4
    million charge) and income taxes ($1 million income).
 
(b) The Shares began trading on the NYSE on March 15, 1994. Prior to such time,
    the Company was a wholly owned subsidiary of LNC.
 
     Prior to entering into the Merger Agreement, the Parent conducted a due
diligence review of the Company and in connection with such review received
certain non-public information from the Company. The non-public information
included, among other things, the Company's business plan for the years ending
December 31, 1995, 1996 and 1997 (the "Plan"), which was prepared by the
Company's management based on numerous assumptions, including among others, the
current business base and prospects of the Company's operating units, wage and
benefit increases and the general business climate for the Company's operations.
Set forth below is a summary of certain forecasted information derived from the
non-public information. None of the assumptions set forth in the Plan give
effect to the Offer, the Merger or the financing thereof or the potential
combined operations of the Parent and the Company after consummation of such
transactions.
 
                                       11
<PAGE>   14
 
     The following chart sets forth certain forecasted information contained in
the Plan for 1995 on a monthly basis (dollars in millions).
 
<TABLE>
<CAPTION>
                                              FULLY INSURED
                                            MEDICAL MEMBERSHIP        ADJUSTED           ADJUSTED
                    MONTH                    AT END OF MONTH          PREMIUMS         PRETAX INCOME
    --------------------------------------  ------------------   -------------------   -------------
    <S>                                     <C>                  <C>                   <C>
    July 1995.............................       1,084,000              $ 142               $10
    August 1995...........................       1,086,000                143                 8
    September 1995........................       1,092,000                144                 8
    October 1995..........................       1,097,000                145                 5
    November 1995.........................       1,098,000                147                 7
    December 1995.........................       1,103,000                149                 7
</TABLE>
 
     The Parent has the right to terminate the Merger Agreement if the Company
does not attain certain percentages of specified components of the Plan for
certain periods prior to the acceptance for payment of Shares pursuant to the
Offer (95% in the case of membership and 90% in the case of premiums and pretax
income, as adjusted in accordance with the terms of the Merger Agreement). See
Section 13.
 
     The Plan contains forecasted premiums (including administrative fees) and
pretax income of $1,991 million and $106 million, respectively, for the year
ending December 31, 1996 and $2,364 million and $122 million, respectively, for
the year ending December 31, 1997.
 
     THE COMPANY HAS ADVISED THE OFFEROR THAT IT DOES NOT AS A MATTER OF COURSE
DISCLOSE FORECASTS AS TO FUTURE REVENUES OR EARNINGS, AND THAT THE FORECASTS
DISCUSSED IN THE PLAN WERE NOT INTENDED TO FORECAST LIKELY OR ANTICIPATED
OPERATING RESULTS, BUT INSTEAD WERE MERELY ONE SCENARIO INTENDED TO REPRESENT
INTERNAL GOALS AND ILLUSTRATE CAPITAL NEEDS AND OTHER ELEMENTS NECESSARY BASED
ON A FINANCIAL MODEL TO ACHIEVE SUCH GOALS. THE FORECASTS DISCUSSED IN THE PLAN
WERE NOT PREPARED WITH A VIEW TO PUBLIC DISCLOSURE OR COMPLIANCE WITH PUBLISHED
GUIDELINES OF THE COMMISSION OR THE AMERICAN INSTITUTE OF CERTIFIED PUBLIC
ACCOUNTANTS FOR PROSPECTIVE FINANCIAL INFORMATION. THE FORECASTED INFORMATION IS
INCLUDED HEREIN SOLELY BECAUSE SUCH INFORMATION WAS FURNISHED TO THE PARENT OR
THE OFFEROR. ACCORDINGLY, THE INCLUSION OF THE FORECASTS IN THIS OFFER SHOULD
NOT BE REGARDED AS AN INDICATION THAT THE PARENT, THE OFFEROR, THE COMPANY OR
THEIR RESPECTIVE FINANCIAL ADVISORS OR THEIR RESPECTIVE OFFICERS AND DIRECTORS
CONSIDER SUCH INFORMATION TO BE ACCURATE OR RELIABLE, AND NONE OF SUCH PERSONS
ASSUMES ANY RESPONSIBILITY FOR THE ACCURACY THEREFOR. THE PLAN WAS PREPARED FOR
INTERNAL USE AND CAPITAL BUDGETING AND OTHER MANAGEMENT DECISION-MAKING PURPOSES
AND IS SUBJECTIVE IN MANY RESPECTS AND THUS SUSCEPTIBLE TO VARIOUS
INTERPRETATIONS AND PERIODIC REVISION BASED UPON ACTUAL EXPERIENCE AND BUSINESS
DEVELOPMENT. IN ADDITION, BECAUSE THE ESTIMATES AND ASSUMPTIONS UNDERLYING THE
PLAN ARE INHERENTLY SUBJECT TO SIGNIFICANT ECONOMIC AND COMPETITIVE
UNCERTAINTIES AND CONTINGENCIES, WHICH ARE DIFFICULT OR IMPOSSIBLE TO PREDICT
ACCURATELY AND ARE BEYOND THE CONTROL OF THE COMPANY AND/OR THE PARENT AND THE
OFFEROR, THERE CAN BE NO ASSURANCE THAT THE PLAN WILL BE REALIZED. ACCORDINGLY,
IT IS EXPECTED THAT THERE WILL BE DIFFERENCES BETWEEN ACTUAL AND FORECASTED
RESULTS, AND ACTUAL RESULTS MAY BE MATERIALLY HIGHER OR LOWER THAN THOSE SET
FORTH ABOVE.
 
     The Company is subject to the informational requirements of the Exchange
Act and in accordance therewith files periodic reports, proxy statements and
other information with the Commission relating to its business, financial
condition and other matters. The Company is required to disclose in such proxy
statements certain information, as of particular dates, concerning the Company's
directors and officers, their remuneration, stock options granted to them, the
principal holders of the Company's securities and any material interests of such
persons in transactions with the Company. Such reports, proxy statements and
other information may be inspected at the public reference facilities maintained
by the Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549,
and at the regional offices of the Commission located at Seven World Trade
Center, 13th Floor, New York, New York 10048 and Citicorp Center, 500 West
Madison Street (Suite 400), Chicago, Illinois 60661. Such material should also
be available for inspection at the offices of the NYSE, 20 Broad Street, New
York, New York 10005.
 
                                       12
<PAGE>   15
 
9. CERTAIN INFORMATION CONCERNING THE PARENT AND THE OFFEROR.
 
     The Offeror is a newly incorporated Delaware corporation and a wholly owned
subsidiary of the Parent, which is also a Delaware corporation. To date, the
Offeror has not conducted any business other than that incident to its
formation, the execution and delivery of the Merger Agreement and the
commencement of the Offer. Accordingly, no meaningful financial information with
respect to the Offeror is available.
 
     The principal executive offices of the Offeror and the Parent are located
in The Humana Building, at 500 West Main Street, Louisville, Kentucky 40202. The
Parent offers managed health care products which integrate management with the
delivery of health care services through a network of providers who share
financial risk or who have incentives to deliver cost-effective medical
services. These products are marketed primarily through health maintenance
organizations ("HMOs") and preferred provider organizations ("PPOs") that
encourage, and in most HMO products require, use of contracting providers. HMOs
and PPOs also control health care costs by various means, including utilization
controls such as pre-admission approval for hospital inpatient services and
pre-authorization of outpatient surgical procedures. The Parent's HMO and PPO
products are marketed primarily to employer and other groups and Medicaid and
Medicare-eligible individuals.
 
     Set forth below is certain summary consolidated financial data with respect
to the Parent excerpted or derived from financial information contained in the
Parent's Annual Report on Form 10-K for the year ended December 31, 1994, and
the Parent's Quarterly Report on Form 10-Q for the quarter ended June 30, 1995.
More comprehensive financial information is included in such reports and other
documents filed by the Parent with the Commission, and the following summary is
qualified in its entirety by reference to such reports and such other documents
and all the financial information (including any related notes) contained
therein.
 
                                  HUMANA INC.
                      SUMMARY CONSOLIDATED FINANCIAL DATA
                             (DOLLARS IN MILLIONS)
 
<TABLE>
<CAPTION>
                                                          AS OF AND FOR THE      AS OF AND FOR THE
                                                           SIX MONTHS ENDED          YEAR ENDED
                                                               JUNE 30,             DECEMBER 31,
                                                          ------------------     ------------------
                                                           1995      1994(A)     1994(A)      1993
                                                          ------     -------     -------     ------
<S>                                                       <C>        <C>         <C>         <C>
INCOME STATEMENT DATA
Premiums................................................  $2,073     $1,750      $3,576      $3,137
Interest and other income...............................      45         36          78          58
Income from operations..................................     152         92         232         150
Interest expense (recovery).............................       4        (27 )       (25 )         7
Income before income taxes..............................     148        119         257         143
Net income..............................................      98         86         176          89
BALANCE SHEET DATA
Working capital.........................................  $  262     $  159      $  222      $  231
Total assets............................................   2,163      1,821       1,957       1,731
Total common stockholders' equity.......................   1,176        972       1,058         889
Total market capitalization.............................   2,872      2,596       3,650       2,846
</TABLE>
 
---------------
(a) Results for the six months ended June 30, 1994 and the year ended December
     31, 1994 include nonrecurring income of $11 million ($17 million net of
     tax) related to the favorable settlement of tax disputes with the Internal
     Revenue Service, partially offset by the write-down of a nonoperational
     asset.
 
     The Parent is subject to the informational requirements of the Exchange Act
and in accordance therewith files periodic reports and other information with
the Commission relating to its business, financial condition and other matters.
Such reports and other information are available for inspection and copying at
the offices of the Commission in the same manner as set forth with respect to
the Company in Section 8.
 
     Except as described in this Offer to Purchase, none of the Offeror, the
Parent, nor, to the best knowledge of the Offeror and the Parent, any of the
persons listed in Annex I to this Offer to Purchase owns or has any right to
acquire any Shares and none of them has effected any transaction in the Shares
during the past 60 days.
 
                                       13
<PAGE>   16
 
10. SOURCE AND AMOUNT OF FUNDS.
 
     If all Shares (including Shares covered by options which have exercise
prices of less than $37.50) outstanding at August 7, 1995 are validly tendered
and purchased by the Offeror, the aggregate purchase price and all estimated
fees and expenses will be approximately $660 million. The Offeror will obtain
all such funds from the Parent, which will obtain these funds through bank
borrowings, available cash and the sale of selected marketable securities.
 
     Under a Credit Agreement, dated as of January 12, 1994, as amended (the
"Credit Agreement"), by and among the Parent, the several banks and other
financial institutions from time to time parties thereto (the "Lenders"), and
Chemical Bank, as agent and as CAF Loan Agent (the "Agent"), the Parent may,
from time to time, borrow up to $350 million for general corporate purposes. As
of August 16, 1995, no borrowings are outstanding under the Credit Agreement.
 
     Pursuant to the Credit Agreement, the Parent may request the Lenders to
make "Alternate Base Rate Loans," "Eurodollar Loans" or a combination thereof,
as determined by the Parent. Alternate Base Rate Loans made pursuant to the
Credit Agreement bear interest on any date at a rate per annum equal to the
greatest of (i) Chemical Bank's prime rate as publicly announced, (ii) the Base
CD Rate (as defined in the Credit Agreement) in effect on such day plus 1%, and
(iii) the Federal Funds Effective Rate in effect on such day plus 0.5000%.
Eurodollar Loans made pursuant to the Credit Agreement bear interest at a per
annum rate determined as an average of the rate for dollar deposits offered in
the interbank eurodollar market two days prior to the interest period for the
Eurodollar Loan, plus an additional margin ranging from 0.2500% to 0.4375%. In
addition to the Alternate Base Rate Loans and the Eurodollar Loans, the Credit
Agreement provides that the Parent may request the Lender to make "CAF Loans,"
which are uncommitted advances at competitive rates made on an auction basis.
The Credit Agreement provides for the payment by the Parent to the Agent, for
the account of each Lender, of a facility fee in respect of the average daily
amount of the commitment (regardless of utilization) of such Lender during the
preceding fiscal quarter, to be computed at a rate ranging from 0.1250% to
0.3125%, depending upon the ratio of the Parent's consolidated total debt to the
sum of the Parent's consolidated total debt and consolidated net worth (as those
terms are defined in the Credit Agreement). The Credit Agreement contains
customary conditions to borrowing, representations and warranties, covenants and
events of default. Amounts under the Credit Agreement may generally be borrowed,
repaid and reborrowed from time to time. All borrowings under the Credit
Agreement mature on October 26, 1999. The Lenders include Chemical Bank;
Citibank, N.A.; NationsBank of Georgia, N.A.; National City Bank, Kentucky; PNC
Bank, Kentucky, Inc.; Wachovia Bank of Georgia, N.A.; Bank of America National
Trust & Savings Association; First National Bank of Chicago; The Chase Manhattan
Bank, N.A.; First Interstate Bank of California; Liberty National Bank and Trust
Co. of Kentucky; Sumitomo Bank Ltd.; The Toronto-Dominion Bank; The Sanwa Bank,
Limited, Atlanta Agency; The Bank of Nova Scotia; Bank of Louisville & Trust
Company; Barnett Bank of Broward County, N.A.; The Boatmen's National Bank of
St. Louis; and Shawmut Bank Connecticut, N.A.
 
     The foregoing description of the Credit Agreement is qualified in its
entirety by reference to the text of the Credit Agreement filed as an exhibit to
the Tender Offer Statement on Schedule 14D-1 of the Offeror (the "Schedule
14D-1") and the Parent filed with the Commission in connection with the Offer
and is incorporated herein by reference.
 
     It is anticipated that borrowings under the Credit Agreement will be repaid
from funds generated internally by the Parent and its subsidiaries (including
the Company) and from other sources which may include the proceeds of the
private or public sale of debt or equity securities.
 
     The margin regulations promulgated by the Federal Reserve Board place
restrictions on the amount of credit that may be extended for the purposes of
purchasing margin stock (including the Shares) if such credit is secured
directly or indirectly by margin stock. While the Credit Agreement contains a
negative pledge clause covering a substantial portion of the Parent's assets on
a consolidated basis and prohibits any part of the proceeds from borrowings
thereunder being used in any transaction or for any purpose which violates the
margin regulations, the Parent and the Offeror believe that the financing of the
acquisition of the Shares through the Credit Agreement will be in full
compliance with the margin regulations.
 
The Offer is not subject to a financing condition.
 
                                       14
<PAGE>   17
 
11. BACKGROUND OF THE OFFER; PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH
    THE COMPANY.
 
     On February 24, 1995, at the request of William J. Lawson, Chairman of the
Board and Chief Executive Officer of the Company, Mr. Lawson and another member
of senior management of the Company met with Wayne T. Smith, President and Chief
Operating Officer of the Parent, and other members of senior management of the
Parent to discuss possible business ventures between the Parent and the Company.
During the meeting, the possibility of the acquisition of the Company by the
Parent was first broached. Subsequent discussions were held between
representatives of the Parent and the Company on a preliminary basis relative to
a possible acquisition. On April 19, 1995, the Parent and the Company entered
into a Confidentiality Agreement, pursuant to which the Company agreed to
furnish information about the Company to the Parent for purposes of the Parent
conducting due diligence of the Company to determine whether to make an
acquisition proposal. Subsequent thereto, various representatives of the Parent
conducted a due diligence investigation.
 
     On July 7, 1995, the Parent sent the following letter to Morgan Stanley, in
its capacity as financial advisor to the Company:
 
          July 7, 1995
 
        Mr. Charles R. Cory
        Morgan Stanley & Co. Incorporated
        1251 Avenue of the Americas
        New York, New York 10020
 
        RE: PROPOSAL FOR [THE COMPANY]
 
        Dear Mr. Cory:
 
             Pursuant to a telephone conversation held between our
        representatives, Humana Inc. ("Humana") is pleased to advise you of our
        interest in acquiring all of the shares of common stock ("Shares") of
        [the Company] (the "Company"). We believe a combination of the Company's
        preeminent small group and distribution skills along with Humana's
        larger group focus and medical cost expertise will appeal to investors
        and employees as the next generation managed care company. This proposal
        is confidential and shall be deemed withdrawn if any announcements or
        disclosures of the existence of this proposal or any of its terms are
        made known to any person other than the Company and its representatives
        assisting it in evaluation of the proposal. It is also made expressly
        subject to the terms and conditions set forth below.
 
             A. Price
 
             Humana is prepared to pay an aggregate cash payment of $618,400,000
        or $36.00 per Share based on 17,100,000 Shares outstanding and 200,000
        outstanding options to purchase Shares. Humana is also prepared to
        provide contingent payment units ("CPUs") as additional consideration
        based on the Company reaching certain defined financial performance
        goals in calendar year 1996 as set forth in Attachment A on the basis of
        one CPU per Share. Each CPU could provide an additional maximum payment
        of $6.00 per Share if the financial performance goals are reached in
        full.
 
             B. Merger Agreement
 
             Humana and Company shall negotiate a satisfactory Merger Agreement
        providing for customary warranties and representations, covenants,
        conditions (including obtaining all requisite regulatory approvals) to
        closing of the merger and other terms. Prior to its execution, the
        Merger Agreement shall be approved by the boards of directors of both
        Humana and the Company.
 
                                       15
<PAGE>   18
 
             C. Stock Option and Voting Agreement with Lincoln National
        Corporation ("Lincoln").
 
             Simultaneous with or prior to the execution of the Merger
        Agreement, Humana and Lincoln shall negotiate a Stock Option and Voting
        Agreement in a form satisfactory to Humana covering all of the shares of
        common stock of the Company beneficially owned by Lincoln.
 
             D. Due Diligence.
 
             Humana shall have the opportunity to update and satisfactorily
        complete its due diligence with the Company.
 
             E. Funding of Acquisition.
 
             Humana shall fund the acquisition with available cash on hand and
        through existing lines of credit available to it. The Merger Agreement
        will not be subject to a financing condition.
 
             F. Termination Fee.
 
             The Merger Agreement shall provide that in the event of the
        termination of the Merger Agreement by the Company or under certain
        circumstances by Humana, Humana would receive a Termination Fee of an
        amount equal to four percent (4%) of the greater of the value of this
        transaction or any transaction consummated with another party.
 
             G. Material Adverse Change.
 
             The Merger Agreement shall provide that Humana shall have the right
        to terminate the merger in the event of a material adverse change in
        Company's financial condition or business prospects as reflected in
        Company's most recently available financial statements prior to closing.
 
             H. Humana's Financial Advisors.
 
             Humana's financial advisors are Benjamin D. Lorello, Conrad L.
        Bringsjord and Brian P. Gottlieb of Smith Barney.
 
             I. Proposal Expiration Date.
 
             This proposal will remain open until 5:00 EDT on July 17, 1995,
        unless rejected by the Company prior to that time.
 
             We are confident that the combination of our companies will be
        beneficial to the shareholders, employees and insureds of both companies
        and we look forward to working with you to achieve this goal. The
        Company and its representatives are invited to contact the undersigned
        [...] to discuss this proposal.
 
          Very truly yours,
 
        W. ROGER DRURY
        Chief Financial Officer
 
     Subsequent to the delivery of the letter referred to above, representatives
of the Parent and the Company had various discussions concerning the Parent's
proposal. On July 14, 1995, the Company provided the Parent and its
representatives with a draft Merger Agreement. On July 17 and 18,
representatives of the Parent and the Company met to discuss the terms of the
draft Merger Agreement. At the same time, discussions were held between
representatives of the Parent and the Selling Stockholder concerning the terms
of the Stock Option and Tender Agreement. During this period and subsequent
thereto, the Parent conducted additional due diligence. On July 28, 1995,
members of senior management of the Parent and the Company met to discuss
further the Parent's interest in acquiring the Company.
 
                                       16
<PAGE>   19
 
     On July 31, 1995, the Parent sent the following letter to the Company:
 
          July 31, 1995
 
        Mr. William J. Lawson, CLU
        Chairman and CEO
        Emphesys Financial Group, Inc.
        1100 Employers Boulevard
        Green Bay, WI 54344
 
        RE: PROPOSAL FOR [THE COMPANY]
 
        Dear Bill:
 
             We are pleased to advise you of our interest in acquiring all of
        the shares of common stock of [the Company]. We believe a combination of
        the Company's preeminent small group and distribution skills along with
        Humana's larger group focus and medical costs expertise will appeal to
        investors and employees as the next generation managed care company.
        This proposal is confidential and shall be deemed withdrawn if any
        announcements or disclosures of the existence of this proposal or any of
        its terms are made known to any person other than the Company and its
        representatives assisting it in evaluation of the proposal. It is also
        made expressly subject to the terms and conditions set forth below.
 
             In determining what we believe is a fair and appropriate price for
        Humana to pay to the shareholders of [the Company], members of our
        senior management have spent significant time during the past several
        weeks in the due diligence process. We have discussed the results of
        that process with you. Based upon our review and market and other
        conditions generally in the health insurance area, we believe that a
        price of $37.00 per share is an extremely attractive price for your
        shareholders. Subject to the finalization of a definitive merger
        agreement, which we believe we are close on, we are prepared to
        consummate the transaction on a very accelerated time basis. As we have
        indicated previously, Humana has the financial resources to finance the
        transaction.
 
             We look forward to working with you to achieve a successful
        combination of our companies that would be beneficial to our
        shareholders, employees and insureds.
 
        Very truly yours,
 
        WAYNE T. SMITH
        President and Chief Operating Officer
 
        cc: Mr. Gregory H. Wolf
 
                                       17
<PAGE>   20
 
     On August 2, 1995, the Company sent the following letter to the Parent:
 
          August 2, 1995
 
        STRICTLY CONFIDENTIAL
        BY TELECOPY
 
        Wayne T. Smith
        President and Chief Operating Officer
        Humana Inc.
        Louisville, KY
 
        Dear Wayne:
 
             Our Board met this morning to discuss your letter to me dated July
        31, 1995 and the related draft contract markup. Based principally on
        price considerations and the proposed additional closing conditions set
        forth as a rider to page 38, our Board has rejected your proposal.
 
             However, the board has authorized management to make a
        counter-proposal at $38.50 per share on terms and conditions to be set
        forth in a revised draft of the contract which our counsel will deliver
        to your counsel later today. (The Company Disclosure Letter will be
        delivered to your counsel tomorrow.) This counter-proposal will expire
        at 5:00 p.m. (Central time) on Friday, August 4, 1995 and, like your
        July 31 proposal, shall be deemed withdrawn if any announcements or
        disclosures of the existence of this proposal or any of its terms are
        made known to any person other than your company and its representatives
        assisting it in evaluation of this counter-proposal.
 
             To put the finishing touches on the contract, we would be available
        to meet with you in Chicago anytime on Thursday or Friday, at the
        offices of our counsel. Our Board is available to meet to approve a
        transaction over the weekend and has tentatively scheduled a meeting for
        Sunday, should circumstances warrant.
 
             The board has strongly urged our management to bring these
        discussions to an expeditious conclusion, one way or the other. We, like
        you, believe a combination of our two fine companies make ultimate sense
        strategically. We are hopeful that a mutually satisfactory agreement can
        be reached in short order.
 
          Very truly yours,
 
        WILLIAM J. LAWSON
        Chairman and CEO
 
        cc: Gregory H. Wolf
           W. Roger Drury
 
                                       18
<PAGE>   21
 
     On August 3, the Parent sent the following letter to the Company:
 
          August 3, 1995
 
        Mr. William J. Lawson, CLU
        Chairman and CEO
        Emphesys Financial Group, Inc.
        1100 Employers Boulevard
        Green Bay, WI 54344
 
        RE: PROPOSAL FOR [THE COMPANY]
 
        Dear Bill:
 
             Thank you for your proposal regarding [the Company]. Although we
        understand your concerns regarding the additional closing condition, we
        strongly believe that in today's uncertain environment we cannot proceed
        without it at the price we proposed in my letter to you of [July 31]. In
        order to address some of your concerns, we have instructed our counsel
        to deliver to your counsel a revised version of the closing condition
        which focuses on just three items: consolidated pretax profit, revenue
        and membership.
 
             Our revised proposal is to acquire all of the outstanding common
        stock of [the Company] at a price of $37.00 per share with the revised
        closing condition. In the alternative, we would propose to acquire all
        of such shares at a price of $34 per share without the inclusion of the
        closing condition. Either proposal is subject to the completion of a
        definitive merger agreement.
 
             This offer will expire at 5:00 p.m. EDT on August 4, 1995. We look
        forward to hearing from you and continue to believe in the value of this
        strategic combination.
 
          Sincerely,
 
        WAYNE T. SMITH
 
        cc: Mr. Gregory H. Wolf
 
                                       19
<PAGE>   22
 
     On August 3, the Company sent the following letter to the Parent:
 
          August 3, 1995
 
        STRICTLY CONFIDENTIAL
        BY TELECOPY
 
        Wayne T. Smith
        President and Chief Operating Officer
        Humana Inc.
        Louisville, KY
 
        Dear Wayne:
 
             We are disappointed and confused by your current proposal, as
        outlined in your letter of August 3. As you know, on August 2nd our
        Board deliberated at length and authorized management to make a proposal
        at $38.50 per share, assuming a Material Adverse Change provision
        consistent with a public company transaction, and in consideration of
        the extensive and thorough due diligence process that was conducted.
 
             It is clear that Humana prefers a highly specific Material Adverse
        Change clause. Therefore, management has taken the dimensions specified
        in the addendum to your August 3rd letter, and devised a provision that
        we believe provides reasonable protection against material adverse
        changes in our business for the period prior to closing. The attached
        Material Adverse Change clause also represents an extraordinary
        concession for a public company transaction. The attached Material
        Adverse Change clause would supersede the more general, conventional,
        closing condition of a "bring down" adverse change representation and
        warranty.
 
             This letter is intended to reaffirm our proposal of $38.50 per
        share, in conjunction with the attached Material Adverse Change clause.
        Please know that we remain committed to reaching an agreement which
        would result in the combination of our two companies. I would remind you
        that our Board has strongly urged management to bring these discussions
        to an expeditious conclusion. In that vein, it is suggested, and
        consistent with your previous correspondence, that we conclude our
        discussions by 5:00 p.m. tomorrow, Friday, August 4, 1995.
 
          Very truly yours,
 
        WILLIAM J. LAWSON
        Chairman and CEO
 
        cc: Gregory H. Wolf
           W. Roger Drury
 
     During the period from July 17 through August 3, 1995, various telephone
discussions were held between representatives of the Parent and the Company (in
addition to the meeting and the correspondence quoted above) and the Parent
continued its due diligence on the Company. On August 4, 1995, Mr. Drury and
other members of senior management of the Parent met with Messrs. Lawson and
Wolf and other members of senior management of the Company to discuss, among
other things, the open issues discussed in the above quoted correspondence, in
particular the provision in the Merger Agreement relating to the right of the
Parent and the Offeror to terminate the Merger Agreement if the Company does not
attain certain percentages of specified financial and operational targets. At
that meeting, a $37.50 per share price was agreed upon, subject to approval by
the Board of Directors of the Company. Following that meeting, representatives
of the Parent and the Company had further discussions concerning the terms of
the Merger Agreement. Further discussions were also held between representatives
of the Parent and the Selling Stockholder concerning the terms of the Stock
Option and Tender Agreement. On the evening of August 8, 1995, Mr. Lawson
advised Mr. Smith that
 
                                       20
<PAGE>   23
 
the Company's Board of Directors had approved the Company being acquired by the
Parent, subject to the terms of the Merger Agreement being finalized. On August
9, 1995, representatives of the Parent and the Company had various discussions
to finalize the terms of the Merger Agreement. These discussions culminated in
the Merger Agreement and the Stock Option and Tender Agreement being executed
during the evening of August 9, 1995. Public disclosure was made on the morning
of August 10, 1995, prior to the opening of trading on the NYSE.
 
12. PURPOSE OF THE OFFER AND THE MERGER; PLANS FOR THE COMPANY.
 
     The purpose of the Offer, the Merger, the Merger Agreement, and the Stock
Option and Tender Agreement is to enable the Parent to acquire control of, and
the entire equity interest in, the Company. Upon consummation of the Merger, the
Company will become a wholly owned subsidiary of the Parent. The Offer is being
made pursuant to the Merger Agreement.
 
     Under the DGCL, the approval of the Board of Directors of the Company and
the affirmative vote of the holders of a majority of the outstanding Shares are
required to approve and adopt the Merger Agreement and the transactions
contemplated thereby, including the Merger. The Board of Directors of the
Company has approved the Offer, the Merger and the Merger Agreement and the
transactions contemplated thereby, and, unless the Merger is consummated
pursuant to the short form merger provisions under the DGCL described below, the
only remaining required corporate action of the Company is the approval and
adoption of the Merger Agreement and the transactions contemplated thereby by
the affirmative vote of the holders of a majority of the Shares. If the Minimum
Condition is satisfied, the Offeror will have sufficient voting power to cause
the approval and adoption of the Merger Agreement and the transactions
contemplated thereby without the affirmative vote of any other stockholder.
 
     In the Merger Agreement, the Company has agreed to take all action
necessary to convene a meeting of its stockholders as promptly as practicable
after the consummation of the Offer for the purpose of considering and taking
action on the Merger Agreement and the transactions contemplated thereby, if
such action is required by the DGCL. The Parent has agreed that, subject to
applicable law, all Shares owned by the Offeror or any other subsidiary of the
Parent will be voted in favor of the Merger Agreement and the transactions
contemplated thereby.
 
     Short Form Merger. Under the DGCL, if the Offeror acquires at least 90% of
the outstanding Shares, the Offeror will be able to approve the Merger without a
vote of the Company's stockholders. In such event, the Offeror anticipates that
it will take all necessary and appropriate action to cause the Merger to become
effective as soon as reasonably practicable after such acquisition without a
meeting of the Company's stockholders. If the conditions to the Offeror's
obligation to purchase Shares in the Offer are satisfied prior to 90% of the
outstanding shares being tendered into the Offer, the Offeror may, subject to
certain limitations set forth in the Merger Agreement, delay its purchase of the
Shares tendered to it in the Offer. See Section 1. If the Offeror does not
otherwise acquire at least 90% of the outstanding Shares pursuant to the Offer
or otherwise, a significantly longer period of time may be required to effect
the Merger, because a vote of the Company's stockholders would be required under
the DGCL. Pursuant to the Merger Agreement, the Company has agreed to take all
action necessary under the DGCL and its Certificate of Incorporation and Bylaws
to convene a meeting of its stockholders promptly following consummation of the
Offer to consider and vote on the Merger, if a stockholders' vote is required.
If the Offeror owns a majority of the outstanding Shares, approval of the Merger
can be obtained without the affirmative vote of any other stockholder of the
Company.
 
     Appraisal Rights. No appraisal rights are available in connection with the
Offer. However, if the Merger is consummated, stockholders of the Company will
have certain rights under the DGCL to dissent and demand appraisal of, and to
receive payment in cash for the fair value of, their Shares. Such rights to
dissent, if the statutory procedures are complied with, could lead to a judicial
determination of the fair value of the Shares (excluding any element of value
arising from the accomplishment or expectation of the Merger) required to be
paid in cash to such dissenting holders for their Shares. In addition, such
dissenting stockholders would be entitled to receive payment of a fair rate of
interest from the date of consummation of
 
                                       21
<PAGE>   24
 
the Merger on the amount determined to be the fair value of their Shares. In
determining the fair value of the Shares, a Delaware court would be required to
take into account all relevant factors. Accordingly, such determination could be
based upon considerations other than, or in addition to, the market value of the
Shares, including, among other things, asset values and earning capacity. In
Weinberger v. UOP, Inc., the Delaware Supreme Court stated, among other things,
that "proof of value by any techniques or methods which are generally considered
acceptable in the financial community and otherwise admissible in court" should
be considered in an appraisal proceeding. Therefore, the value so determined in
any appraisal proceeding could be different from the price being paid in the
Offer.
 
     In addition, several decisions by Delaware courts have held that, in
certain circumstances, a controlling stockholder of a company involved in a
merger has a fiduciary duty to other stockholders which requires that the merger
be fair to such other stockholders. In determining whether a merger is fair to
minority stockholders, Delaware courts have considered, among other things, the
type and amount of consideration to be received by the stockholders and whether
there was fair dealing among the parties. The Delaware Supreme Court stated in
Weinberger and Rabkin v. Philip A. Hunt Chemical Corp. that although the remedy
ordinarily available to minority stockholders in a cash-out merger is the right
to appraisal described above, a damages remedy or injunctive relief may be
available if a merger is found to be the product of procedural unfairness,
including fraud, misrepresentation or other misconduct.
 
     Rule 13e-3. The Commission has adopted Rule 13e-3 under the Exchange Act
which is applicable to certain "going private" transactions and which may under
certain circumstances be applicable to the Merger or another business
combination following the purchase of Shares pursuant to the Offer or otherwise
in which the Offeror seeks to acquire the remaining Shares not held by it. The
Offeror believes, however, that Rule 13e-3 will not be applicable to the Merger
if the Merger is consummated within one year after the termination of the Offer
at the same per Share price as paid in the Offer. If applicable, Rule 13e-3
requires, among other things, that certain financial information concerning the
Company and certain information relating to the fairness of the proposed
transaction and the consideration offered to minority stockholders in such
transaction, be filed with the Commission and disclosed to stockholders prior to
consummation of the transaction.
 
     Plans for the Company. Except as otherwise set forth in this Offer to
Purchase, it is expected that, initially following the Merger, the business and
operations of the Company will be continued by the Surviving Corporation
substantially as they are currently being conducted. The Board of Directors of
the Surviving Corporation will be composed of current officers of the Parent.
 
     The Parent will continue to evaluate the business and operations of the
Company during the pendency of the Offer and after the consummation of the Offer
and the Merger, and will take such actions as it deems appropriate under the
circumstances then existing. The Parent intends to seek additional information
about the Company during this period. Thereafter, the Parent intends to review
such information as part of a comprehensive review of the Company's business,
operations, capitalization and management with a view to optimizing exploitation
of the Company's potential in conjunction with the Parent's business.
 
     Except as indicated in this Offer to Purchase, the Parent does not have any
present plans or proposals which relate to or would result in an extraordinary
corporate transaction, such as a merger, reorganization or liquidation,
involving the Company or any of its subsidiaries, a sale or transfer of a
material amount of assets of the Company or any of its subsidiaries or any
material change in the Company's capitalization or dividend policy or any other
material changes in the Company's corporate structure or business, or the
composition of the Company's Board of Directors or management.
 
13. THE MERGER AGREEMENT; THE STOCK OPTION AND TENDER AGREEMENT.
 
     The following summary of certain provisions of the Merger Agreement and the
Stock Option and Tender Agreement, copies of which are filed as exhibits to the
Schedule 14D-1, is qualified in its entirety by reference to the text of the
Merger Agreement and the Stock Option and Tender Agreement.
 
                                       22
<PAGE>   25
 
  The Merger Agreement
 
     The Offer. The Offeror commenced the Offer in accordance with the terms of
the Merger Agreement. Pursuant to the terms and conditions of the Merger
Agreement, the Parent, the Offeror and the Company are required to use all
reasonable efforts to take all action as may be necessary or appropriate in
order to effectuate the Offer and the Merger as promptly as possible and to
carry out the transactions provided for or contemplated by the Merger Agreement.
 
     Company Actions. Pursuant to the Merger Agreement, the Company has agreed
that on the date of the commencement of the Offer, subject to the fiduciary
duties of the Board of Directors of the Company under applicable law as
determined by the Board of Directors of the Company in good faith after
consultation with the Company's outside counsel, it will file with the
Commission and mail to its stockholders, a Solicitation/Recommendation Statement
on Schedule 14D-9 containing the recommendation of the Board of Directors that
the Company's stockholders accept the Offer and approve the Merger and the
Merger Agreement.
 
     The Merger. The Merger Agreement provides that, upon the terms and subject
to the conditions of the Merger Agreement, and in accordance with the DGCL, the
Offeror shall be merged with and into the Company at the Effective Time.
Following the Merger, the separate corporate existence of the Offeror shall
cease and the Company shall continue as the Surviving Corporation and shall
succeed to and assume all the rights and obligations of the Offeror in
accordance with the DGCL. The Certificate of Incorporation and By-laws of the
Offeror shall be amended to change the name of the Offeror to "EMPHESYS
Financial Group, Inc." and, as so amended, the Certificate of Incorporation and
the Bylaws of the Offeror shall become the Certificate of Incorporation and
Bylaws of the Surviving Corporation, and the directors and officers of the
Offeror shall become the directors and officers of the Surviving Corporation.
 
     Conversion of Securities. At the Effective Time, each Share issued and
outstanding immediately prior thereto shall be canceled and extinguished and
each Share (other than Shares held by the Company as treasury Shares, Shares
owned by any subsidiary of the Company, Shares owned by the Offeror or any
subsidiary thereof, and Dissenting Shares (as defined below)) shall, by virtue
of the Merger and without any action on the part of the Offeror, the Company or
the holders of the Shares, be converted into and represent the right to receive
the Offer Price. Each share of common stock of the Offeror issued and
outstanding immediately prior to the Effective Time shall, at the Effective
Time, by virtue of the Merger and without any action on the part of the Offeror,
the Company or the holders of Shares, be converted into and shall thereafter
evidence one validly issued and outstanding share of common stock of the
Surviving Corporation.
 
     Dissenting Shares. If required by the DGCL, Shares which are held by
holders who have properly exercised appraisal rights with respect thereto in
accordance with Section 262 of the DGCL will not be exchangeable for the right
to receive the Offer Price, and holders of such Shares will be entitled to
receive payment of the appraised value of such Shares unless such holders fail
to perfect or withdraw or lose their right to appraisal and payment under the
DGCL.
 
     Merger Without a Meeting of Stockholders. In the event that the Offeror
shall acquire at least 90 percent of the outstanding Shares, the parties agree
to take all necessary and appropriate actions to cause the Merger to become
effective without a meeting of stockholders of the Company, in accordance with
Section 253 of the DGCL.
 
     Representations and Warranties. In the Merger Agreement, the Company has
made customary representations and warranties to the Offeror, including, but not
limited to, representations and warranties relating to the Company's
organization and qualification, capitalization, its authority to enter into the
Merger Agreement and carry out the related transactions, filings made by the
Company with the Commission under the Securities Act of 1933, as amended (the
"Securities Act") or the Exchange Act (including financial statements included
in the documents filed by the Company under these acts), required consents and
approvals, compliance with applicable laws (including state insurance regulatory
approvals), employee benefit plans, litigation, material liabilities of the
Company and its subsidiaries, the payment of taxes and the absence of certain
material adverse changes or events.
 
                                       23
<PAGE>   26
 
     The Offeror and the Parent have also made customary representations and
warranties to the Company, including, but not limited to, representations and
warranties relating to the Offeror's and the Parent's organization and
qualification, authority to enter into the Merger Agreement, required consents
and approvals, and the availability of sufficient funds to consummate the Offer.
 
     Covenants Relating to the Conduct of Business. The Company has agreed that
it will, and will cause its subsidiaries to, in all material respects, carry on
their respective businesses in, and not enter into any material transaction
other than in accordance with, the regular and ordinary course and, to the
extent consistent therewith, use their reasonable best efforts to preserve
intact its current business organizations, keep available the services of their
current officers and employees and preserve their relationships with customers,
suppliers and others having business dealings with them. The Company has agreed
that, except as contemplated by the Merger Agreement or as disclosed by the
Company to the Parent prior to the execution of the Merger Agreement, it shall
not, and shall not permit any of its subsidiaries to, without the prior written
consent of the Parent:
 
          (a) (x) declare, set aside or pay any dividends on, or make any other
     actual, constructive or deemed distributions in respect of, any of its
     capital stock, or otherwise make any payments to stockholders of the
     Company in their capacity as such, other than (1) dividends declared prior
     to the date of the Merger Agreement, and (2) dividends payable to the
     Company declared by any of the Company's subsidiaries, (y) split, combine
     or reclassify any of its capital stock or issue or authorize the issuance
     of any other securities in respect of, in lieu of or in substitution for
     shares of its capital stock or (z) purchase, redeem or otherwise acquire
     any shares of capital stock of the Company or any of its subsidiaries or
     any other securities thereof or any rights, warrants or options to acquire
     any such shares or other securities;
 
          (b) issue, deliver, sell, pledge, dispose of or otherwise encumber any
     shares of its capital stock, any other voting securities or equity
     equivalent or any securities convertible into, or any rights, warrants or
     options to acquire, any such shares, voting securities or convertible
     securities or equity equivalent (other than, in the case of the Company,
     the issuance of Shares during the period from the date of the Merger
     Agreement through the Effective Time upon the exercise of certain
     outstanding stock options of the Company on the date of the Merger
     Agreement in accordance with their current terms);
 
          (c) amend its charter or bylaws;
 
          (d) acquire or agree to acquire by merging or consolidating with, or
     by purchasing a substantial portion of the assets of or equity in, or by
     any other manner, any business or any corporation, partnership, association
     or other business organization or division thereof or otherwise acquire or
     agree to acquire any assets, in each case that are material, individually
     or in the aggregate, to the Company and its subsidiaries taken as a whole;
 
          (e) sell, lease or otherwise dispose of or agree to sell, lease or
     otherwise dispose of, any of its assets that are material, individually or
     in the aggregate, to the Company and its subsidiaries taken as a whole;
 
          (f) incur any indebtedness for borrowed money or guarantee any such
     indebtedness or issue or sell any debt securities or guarantee any debt
     securities of others, except for borrowings or guarantees incurred in the
     ordinary course of business consistent with past practice, or make any
     loans, advances or capital contributions to, or investments in, any other
     person, other than to the Company or any wholly owned subsidiary of the
     Company and other than in the ordinary course of business consistent with
     past practice;
 
          (g) alter through merger, liquidation, reorganization, restructuring
     or in any other fashion the corporate structure or ownership of any
     subsidiary of the Company;
 
          (h) enter into or adopt, or amend any existing, severance plan,
     agreement or arrangement or, other than in the ordinary course of business,
     enter into or amend any employee benefit plan or employment or consulting
     agreement except (x) as permitted by the Merger Agreement or (y) with
     respect to employees that are not executive officers or directors,
     compensation increases associated with promotions and regular reviews in
     the ordinary course of business consistent with past practices; or
 
                                       24
<PAGE>   27
 
          (i) waive, amend or allow to lapse any term or condition of any
     confidentiality or "standstill" agreement to which the Company is a party.
 
     During the period from the date of the Merger Agreement through the
Effective Time, (i) as requested by the Parent, the Company shall confer on a
regular basis with one or more representatives of the Parent with respect to
material operational matters; (ii) the Company shall, within 20 days following
each fiscal month, deliver to the Parent financial statements, including an
income statement and balance sheet for such month, together with a statement
reconciling differences between the forecasted results of operations for such
month set forth in the Plan and the actual results of operations set forth in
the financial statements delivered pursuant to this clause (ii); and (iii) upon
the knowledge of the Company of any change, either individually or in the
aggregate, that is or may be materially adverse to the business, assets,
liabilities, properties, condition (financial or otherwise) or results of
operations of all or any material part of the Company and its subsidiaries taken
as a whole ("Material Adverse Effect"), any material litigation or material
governmental complaints, investigations or hearings (or communications
indicating that the same may be contemplated), or the breach in any material
respect of any representation or warranty contained herein, the Company shall
promptly notify the Parent thereof.
 
     During the period from the date of the Merger Agreement through the
Effective Time, the Offeror shall not engage in any activities of any nature
except as provided in or contemplated by the Merger Agreement.
 
     No Solicitation. The Company has agreed in the Merger Agreement that, from
the date of the Merger Agreement until the Effective Time or the termination of
the Merger Agreement, neither the Company nor its subsidiaries shall, and the
Company shall direct and use its reasonable best efforts to cause its officers,
directors, employees, authorized agents and representatives (including, without
limitation, any investment banker, attorney or accountant retained by it or any
of its subsidiaries) not to initiate, solicit or encourage, directly or
indirectly, any inquiries or the making or implementation of any proposal or
offer (including, without limitation, any proposal or offer to its stockholders)
with respect to a merger, acquisition, consolidation or similar transaction
involving the Company or its subsidiaries, or any purchase of all or any
significant portion of the assets or any equity securities of, the Company or
its subsidiaries (an "Acquisition Proposal"), or engage in any negotiations
concerning, or provide any confidential information or data to, or have any
discussions with, any person relating to an Acquisition Proposal, or otherwise
facilitate any effort or attempt to make or implement an Acquisition Proposal,
and that it will immediately cease and cause to be terminated any existing
activities, discussions or negotiations with any parties conducted heretofore
and will take the necessary steps to inform such parties of the obligations
undertaken in the Merger Agreement. The Company will notify the Parent
immediately if any such inquiries or proposals are received by, any such
information is requested from, or any such negotiations or discussions are
sought to be initiated or continued with, it, but the Company need not disclose
the identity of the other party or the terms of its proposals; provided,
however, that such agreement shall not prohibit the Board of Directors of the
Company from (i) furnishing information to or entering into discussions or
negotiations with, any person or entity that makes an unsolicited bona fide
proposal in writing, not subject to a financing condition, to acquire the
Company pursuant to a merger, consolidation, share exchange, purchase of a
substantial portion of the assets, business combination or other similar
transaction if, and only to the extent that (A) the Board of Directors
determines in good faith after consultation with the Company's outside counsel
that such action is required for the Board of Directors to comply with its
fiduciary duties to stockholders imposed by laws, (B) prior to or concurrently
with furnishing such information or entering into such discussions, the Company
provides written notice to the Parent to the effect that it is furnishing
information to, or entering discussions or negotiations with, such a person or
entity, and (C) the Company keeps the Parent informed of the status (not the
identity or terms) of any such discussions or negotiations; and (ii) to the
extent applicable, complying with Rule 14e-2 promulgated under the Exchange Act
with regard to an Acquisition Proposal.
 
     Options. Pursuant to the Merger Agreement, all outstanding employee stock
options (the "Company Stock Options") granted under the Company's 1994 Stock
Incentive Plan (the "Stock Plan") shall become fully exercisable and vested,
and, pursuant to the terms of the Stock Plan shall, upon their surrender to the
Company by the holders, be canceled by the Company, and the holders shall
receive a cash payment from the
 
                                       25
<PAGE>   28
 
Company in an amount equal to the number of Shares subject to each surrendered
option multiplied by the difference (if positive) between the exercise price per
Share covered by the option and the Offer Price; provided, however, that the
making of such payment to any such holder shall be conditioned on such holder
acknowledging the cancellation of all Company Stock Options held by such holder,
including any Company Stock Options as to which the exercise price equals or
exceeds $37.50 (the "Out-of-the-Money Options"). The Company shall use its best
efforts to cause each holder of Out-of-the-Money Options to acknowledge, prior
to the purchase of Shares pursuant to the Offer, the cancellation without
consideration therefor of such holder's Out-of-the-Money Options and to cause
each other holder of Company Stock Options to surrender their Company Stock
Options in accordance with the prior sentence. Any Company Stock Options not
canceled in accordance with the previous sentence shall be canceled at the
Effective Time in exchange for an amount in cash, payable at the Effective Time,
equal to the amount which would have been paid had such stock options been
canceled immediately prior to the consummation of the Offer. The Merger
Agreement also provides that the Company shall terminate the Stock Plan
immediately prior to the Effective Time without prejudice to the holders of such
options and grant no additional Company Stock Options.
 
     Indemnification. From and after the Effective Time, the Parent agrees to,
and to cause the Surviving Corporation to, indemnify and hold harmless all past
and present officers, directors, employees and agents (the "Indemnified
Parties") of the Company and of its subsidiaries to the full extent such persons
may be indemnified by the Company pursuant to the Company's certificate of
incorporation and bylaws as in effect as of the date of the execution of the
Merger Agreement for acts and omissions occurring at or prior to the Effective
Time and shall advance reasonable litigation expenses incurred by such persons
in connection with defending any action arising out of such acts or omissions,
provided that such persons provide the requisite affirmation and undertaking, as
set forth in the Company's bylaws prior to the Effective Time. The Parent will
provide, or cause the Surviving Corporation to provide, for a period of not less
than six years after the Effective Time, the Company's current directors and
officers an insurance and indemnification policy that provides coverage for
events occurring at or prior to the Effective Time (the "D&O Insurance") that is
no less favorable than the existing policy or, if substantially equivalent
insurance coverage is unavailable, the best available coverage; provided,
however, that the Parent and the Surviving Corporation shall not be required to
pay an annual premium for the D&O Insurance in excess of one and one-half times
the last annual premium paid prior to the date of the execution of the Merger
Agreement, but in such case shall purchase as much such coverage as possible for
such amount.
 
     Employee Benefits. Until at least December 31, 1996, the Parent has agreed
to maintain employee benefits and programs for retirees, officers and employees
of the Company (other than Messrs. William J. Lawson and Gregory H. Wolf, as to
whom benefits shall be as set forth in the agreements now in existence between
the Company and such individuals) and its subsidiaries that are no less
favorable in the aggregate than those being provided to such retirees, officers
and employees on the date of the execution of the Merger Agreement (it being
understood that the Parent will not be obligated to continue any one or more
employee benefits or programs). For purposes of eligibility to participate in
and vesting in all benefits provided to retirees, officers and employees,
retirees, officers and employees of the Company and its subsidiaries will be
granted their years of service with the Company and its subsidiaries and years
of service with prior employers to the extent service with prior employers is
taken into account under plans of the Company. Amounts paid before the Effective
Time by retirees, officers and employees of the Company under any medical plans
of the Company shall after the Effective Time be taken into account in
calculating balances for deductibles and maximum out-of-pocket limits applicable
under the medical plan of the Parent for the plan year during which the
Effective Time occurs as if such amounts had been paid under such medical plan
of the Parent.
 
     After the Effective Time, the Parent has agreed to cause the Company to
maintain for 1995, without modification or amendment, the Company's Management
Incentive Plan (the "MIP") for all covered employees. The Parent has agreed that
the following principles shall apply for purposes of determining bonuses for
1995 under the MIP: (1) only persons who are employees of the Company or any of
its subsidiaries at the time that bonuses are paid (which shall not be later
than February 28, 1996) and who, at such time, are covered by the MIP shall be
eligible to receive such bonuses, except that employees that are terminated
(actually or constructively) without cause prior to the date that bonuses are
paid shall be eligible
 
                                       26
<PAGE>   29
 
to receive a pro rata portion of such bonuses; (2) whether any bonuses are
payable under such plan and, if so, the amounts thereof shall be determined as
if the transactions contemplated in the Merger Agreement had not occurred and
the Company had remained an independent, publicly owned company through December
31, 1995, taking into account to the extent reasonably applicable the
limitations imposed by certain provisions of the Merger Agreement; and (3) the
timing of payment of any bonuses payable pursuant to clause (2) above shall be
consistent with past practices. The pro rata portion of an employee's bonus
shall be the amount determined pursuant to the preceding sentence multiplied by
a fraction, the numerator of which shall be the number of days during 1995 for
which such employee was employed by the Company or any of its subsidiaries and
the denominator of which shall be 365.
 
     The Parent has agreed to maintain the existing severance policy applicable
to each officer covered by a severance policy separate from the Company's
standard severance policy for the Company's employees (which separate severance
policy relates to a change of control of the Company) and, for each other
officer and employee, the Parent has agreed to maintain the Company's standard
severance policy as in effect on the date of the Merger Agreement for a period
of at least six months from the Effective Time.
 
     The Parent shall honor or cause to be honored all severance and employment
agreements with the Company's officers and employees to the extent these
agreements have been disclosed to the Parent prior to the execution of the
Merger Agreement.
 
     The Parent has agreed to provide reasonable and customary outplacement
services ("Outplacement Services") to officers of the Company and its
subsidiaries who are terminated by the Company as a result of, or within one
year following, the Effective Time, which Outplacement Services provided to such
officers shall include one-on-one counseling and assistance; provided, however,
that the amount paid by the Parent to provide Outplacement Services shall not
exceed $15,000 for any individual officer or $250,000 in the aggregate.
 
     Board Representation. The Merger Agreement provides that promptly upon the
purchase of Shares pursuant to the Offer, the Parent shall be entitled to
designate members of the Board of Directors of the Company, rounded up to the
next whole number, as will give the Parent, subject to compliance with the
provisions of Section 14(f) of the Exchange Act, representation on the Board of
Directors of the Company equal to the product of (i) the total number of
directors on such Board and (ii) the percentage that the aggregate number of
Shares owned by the Parent bears to the total number of outstanding Shares. The
Company has agreed, upon the request of the Parent, to promptly increase the
size of the Board of Directors of the Company and/or use its reasonable best
efforts to secure the resignations of such number of directors as is necessary
to enable the Parent's designees to be elected to the Board of Directors and
shall cause the Parent's designees to be so elected. The Company has agreed to
take, at its expense, all actions required by Section 14(f) of the Exchange Act
and Rule 14f-1 promulgated thereunder to effect any such election, including the
mailing to its stockholders of the information required to be disclosed pursuant
thereto. The Parent will supply to the Company in writing and be solely
responsible for any information with respect to itself and its nominees,
officers, directors and affiliates required by Section 14(f) and Rule 14f-1.
 
     Performance Certificates. Until the Offeror acquires Shares pursuant to the
Offer, the Company is required to deliver certificates (the "Certificates") to
the Parent and the Offeror containing the following information, each
certificate being certified by the Chairman of the Board and the President of
the Company as true and correct and as being prepared in accordance with the
provisions of the Merger Agreement:
 
          (x) No later than the tenth calendar day of each month, (1) the number
     of insured members (the "Members") in the Company's medical plans at the
     end of the month immediately prior to said month (the "Prior Month") and
     (2) the Adjusted Premiums (as such term is defined below) for the period
     (the "Premium Measurement Period") from July 1, 1995 through the end of the
     Prior Month, inclusive; and
 
          (y) No later than the first calendar day of each month, the Adjusted
     Pretax Income (as such term is defined below) for the period (the "Pretax
     Measurement Period") from January 1, 1995 through the end of the month
     immediately prior to the Prior Month, inclusive.
 
                                       27
<PAGE>   30
 
     For purposes of the foregoing, (I) except as otherwise provided, all
calculations shall be made in accordance with generally accepted accounting
principles applied on a consistent basis with the accounting principles used in
preparing the Company's Consolidated Statement of Income for the year ended
December 31, 1994 as included in the Company's filings with the Commission (the
"Income Statement"), (II) except as otherwise provided, all terms shall have the
meanings customarily used for such terms in the health care industry, (III) the
term "Adjusted Premiums" shall mean the Company's consolidated earned premiums
(including administrative fees and any other items of revenue of the type
included under the caption "Administrative fees and other" in the Income
Statement) but shall not include premium reserve adjustments related to reserves
which arose prior to July 1, 1995, investment income or realized gains or losses
on investments and (IV) the term "Adjusted Pretax Income" shall mean the
Company's consolidated pretax income as adjusted for certain exclusions,
adjustments and assumptions as contemplated by the Merger Agreement.
 
     Until the Offeror acquires Shares pursuant to the Offer, on or prior to the
20th calendar day of each month the Company is generally required to deliver to
the Parent and the Offeror a draft of the certificate (the "Pretax Certificate")
referred to in clause (y) above which is required to be delivered on the first
day of the following month, accompanied by a report of Ernst & Young, LLP, the
Company's independent accountants, of the type contemplated by Rule 436(d)
promulgated under the Securities Act and stating that the Adjusted Pretax Income
included in the draft certificate was determined in a manner consistent with the
methodology set forth in the Merger Agreement. The Company agrees to make the
appropriate officers and employees of the Company and its subsidiaries and
representatives of Ernst & Young, LLP available to discuss the draft certificate
with representatives of the Parent and the Offeror, together with Coopers &
Lybrand, L.L.P., their independent accountants. Subject to the Company complying
with its obligations pursuant to the immediately preceding paragraph in a manner
which under reasonable circumstances would permit the Parent and the Offeror to
complete their review within the time period hereinafter provided, the Parent
and the Offeror agree to complete their review and provide the Company with a
detailed description of their comments and proposed modifications within five
business days after the receipt of the draft certificate (which proposed
modifications shall, in reasonable judgment of the Parent and the Offeror, be
necessary in order for the Adjusted Pretax Income to have been determined in a
manner consistent with the methodology set forth in or contemplated by the
Merger Agreement).
 
     If the Pretax Certificate is accompanied by a certificate from Milliman and
Robertson (or such other firm acceptable to the Parent and the Offeror) stating
that, in its professional opinion, the medical claims component of Adjusted
Pretax Income included in the Pretax Certificate was determined in a manner
consistent with the methodology set forth in the Merger Agreement, the Parent
and the Offeror shall be bound by such determination but solely as it relates to
the medical claims component of Adjusted Pretax Income. All fees and expenses of
Milliman and Robertson (or such other firm) shall be paid by the Company.
 
     For purposes of exercising its right to terminate the Merger Agreement,
notwithstanding the fact that the calculations included in the Certificates
comply with the thresholds established therein, the Parent and the Offeror have
the right, exercised in good faith, to disagree with any of the calculations
made by the Company in such Certificates (except to the extent the calculations
relate to the medical claims component of Adjusted Pretax Income as contained in
a certificate from Milliman and Robertson) and to take any permitted action to
terminate the Merger Agreement had their calculations been included in such
Certificates (subject to the obligation of the Parent and the Offeror, in any
proceeding commenced by the Company claiming that the Parent and the Offeror
breached their obligations under the Merger Agreement by improperly exercising
their right to terminate, to demonstrate that the Company's calculations were
inaccurate and that, if the calculations were prepared accurately, the Parent
and the Offeror would have had the right to terminate the Merger Agreement)
unless in the case of the calculation of Adjusted Pretax Income, (i) the Company
modified its calculation of Adjusted Pretax Income contained in the
corresponding draft certificate to take into account all of the comments
provided to the Company by the Parent and the Offeror, (ii) the Parent and the
Offeror acknowledged in writing to the Company that they had no comments on the
calculation of Adjusted Pretax Income or (iii) the Parent and the Offeror do not
comply with their obligations to review and comment upon the draft Pretax
Certificate.
 
                                       28
<PAGE>   31
 
     Conditions Precedent. The respective obligations of each party to effect
the Merger shall be subject to the fulfillment at or prior to the Effective Time
of the following conditions: (a) if required by applicable law, the Merger
Agreement shall have been approved by the requisite vote of the holders of the
Shares; and (b) no governmental entity or court of competent jurisdiction shall
have enacted, issued, promulgated, enforced or entered any law, rule,
regulation, executive order, decree or injunction which prohibits or has the
effect of prohibiting the consummation of the Merger; provided, however, that
the Company, the Parent and the Offeror shall use their reasonable best efforts
to have any such order, decree or injunction vacated.
 
     Termination. The Merger Agreement provides that it may be terminated at any
time prior to the Effective Time, whether prior to or after approval by the
stockholders of the Company: (a) by mutual written consent of the Parent and the
Company; (b) by the Company if: (i) the Offer has not been timely commenced
(except as a result of actions or omissions by the Company); (ii) there is an
offer to acquire all of the Shares or substantially all of the assets of the
Company for consideration that provides stockholders of the Company a value per
Share which, in the good faith judgment of the Board of Directors of the
Company, provides a higher value per Share than the consideration per Share
pursuant to the Offer or the Merger and the Board of Directors of the Company
determines in good faith after consultation with the Company's outside counsel
that the failure to approve such offer would not be consistent with the
fiduciary duties of the Board of Directors of the Company to stockholders of the
Company; provided, however that the right to terminate the Merger Agreement
pursuant to this clause (ii) will not be available (A) if the Company has
breached in any material respect its obligations concerning Acquisition
Proposals, (B) in respect of an offer that is subject to a financing condition,
(C) in respect of an offer involving consideration which is not entirely cash,
or does not permit stockholders to receive the payment of the offered
consideration in respect of all Shares at the same time, unless the Board of
Directors of the Company has been furnished with a written opinion of a
nationally recognized investment banking firm to the effect that such offer
provides a higher value per Share than the consideration per Share pursuant to
the Offer or the Merger or (D) if, prior to or concurrently with any purported
termination pursuant to this clause (ii), the Company shall not have paid the
Termination Fee (as defined below); (iii) there has been a breach by the Parent
or the Offeror of any representation or warranty that would have a material
adverse effect on the Parent's or the Offeror's ability to perform its
obligations under the Merger Agreement, and which is not cured within five
business days following receipt by the Parent or the Offeror of notice of the
breach; or (iv) if the Parent or the Offeror fails to comply in any material
respect with any of its material obligations or covenants contained in the
Merger Agreement, including the obligation of the Offeror to purchase Shares
pursuant to the Offer, unless such a failure results from a breach by the
Company of any obligation, representation or warranty under the Merger
Agreement, which is not cured within five business days following the Company's
receipt of notice of the breach; (c) by the Parent if: (i) the Board of
Directors of the Company shall have failed to recommend, or withdrawn, modified
or amended in any material respect its approval or recommendation of the Offer
or the Merger or shall have resolved to do any of the foregoing, or shall have
failed to reject an Acquisition Proposal within 10 business days after receipt
by the Company or public announcement thereof, or (ii) the information contained
in the last Certificates delivered to the Parent and the Offeror does not
satisfy all of the following thresholds: (x) the number of Members is at least
95% of the number of Members forecasted for the end of the applicable month in
the Plan; (y) the Adjusted Premiums are at least 90% of the Adjusted Premiums
forecasted for the applicable Premium Measurement Period in the Plan; and (z)
the Adjusted Pretax Income is at least 90% of the Adjusted Pretax Income
forecasted for the applicable Pretax Measurement Period in the Plan; or (d) by
either the Parent or the Company if: (i) the Merger has not been effected on or
prior to the close of business on March 31, 1996; provided, however, that the
right to terminate the Merger Agreement pursuant to this clause shall not be
available (y) to the Parent if the Offeror or any affiliate of the Offeror
acquires Shares pursuant to the Offer, or (z) to any party whose failure to
fulfill any obligation under the Merger Agreement has been the cause of, or
resulted in, the failure of the Merger to have occurred on or prior to the
aforesaid date; or (ii) any court of competent jurisdiction or any other
governmental body shall have issued an order, decree or ruling or taken any
other action permanently enjoining, restraining or otherwise prohibiting the
Merger and such order, decree, ruling or other action shall have become final
and non-appealable; or (iii) upon a vote at a duly held meeting or upon any
adjournment thereof, the stockholders of the Company shall have failed to give
any required approval, or (iv) as the result of the failure of any of the
conditions to the
 
                                       29
<PAGE>   32
 
Offer as set forth in this Offer to Purchase (see Section 15), the Offer shall
have terminated or expired in accordance with its terms without the Offeror
having purchased any Shares pursuant to the Offer; provided, however, that the
right to terminate the Merger Agreement pursuant to this clause (iv) shall not
be available to any party whose failure to fulfill any of its obligations under
the Merger Agreement results in the failure of any such condition; or (v) the
Parent or the Company shall have reasonably determined that any Offer condition
(other than the Minimum Condition) is not capable of being satisfied at any time
in the future; provided, however, that the right to terminate the Merger
Agreement pursuant to this clause (v) shall not be available to any party whose
failure to fulfill any of its obligations under the Merger Agreement has been
the cause of, or resulted in, such Offer condition being incapable of
satisfaction. If the Merger Agreement is terminated, the Merger Agreement will
become void and there will be no liability or further obligation on the part of
the Offeror, the Parent or the Company or their respective stockholders,
officers or directors, except for the Company's obligations, under certain
circumstances, to pay the Termination Fee (as defined below) or to reimburse the
Parent for certain expenses and except for the confidentiality obligations of
the parties.
 
     Fees and Expenses. Whether or not the Merger is consummated, all costs and
expenses incurred in connection with the Merger Agreement and the transactions
contemplated thereby shall be paid by the party incurring such costs and
expenses. The Company has agreed in the Merger Agreement that, in the event that
(i) any person (other than the Parent or any of its affiliates) shall have
become, prior to the termination of the Merger Agreement, the beneficial owner
of 50% or more of the outstanding Shares, (ii) the Offer shall have expired at a
time when the Minimum Condition shall not have been satisfied and at any time on
or prior to nine months after the date of the expiration of the Offer any person
(other than the Offeror or any of its affiliates) shall acquire beneficial
ownership of 50% or more of the outstanding Shares or shall consummate an
Acquisition Proposal, (iii) at any time prior to the termination of the Merger
Agreement any person (other than the Offeror or any of its affiliates) shall
publicly announce any Acquisition Proposal and, at any time on or prior to nine
months after the date of the termination of the Merger Agreement, shall become
the beneficial owner of 50% or more of the outstanding Shares or shall
consummate an Acquisition Proposal, or (iv) the Company terminates the Merger
Agreement in accordance with clause (b)(ii) set forth above under "Termination",
then the Company shall, in the case of clause (i), (ii) or (iii) above,
promptly, but in no event later than two business days after the first of such
events to occur, or, in the case of clause (iv), at or prior to the time of such
termination, pay the Offeror the sum of $18 million (the "Termination Fee") in
cash. If the Company fails to pay such amount when due, which failure is finally
determined by a court of competent jurisdiction, the Parent shall be entitled to
the payment from the Company, in addition to any such amount, of any legal fees
and expenses incurred in procuring such judicial determination.
 
     In the event the Board of Directors of the Company shall modify or amend
its recommendation of the Offer and/or the Merger in a manner adverse to the
Parent or shall withdraw its recommendation of the Offer or shall recommend any
Acquisition Proposal, or shall resolve to do any of the foregoing, or shall have
failed to reject any Acquisition Proposal within 10 business days after receipt
by the Company or public announcement thereof, the Company shall reimburse the
Parent and the Offeror (not later than two business days after submission of
statements therefor) for all reasonable, documented costs and expenses
(including, without limitation, all legal, investment banking, printing,
depositary and related fees and expenses, but excluding any internal allocations
of overhead attributable to the Offer, the Merger or the transactions
contemplated by the Merger Agreement) (the "Expenses"); provided, however, that
the amount of the Expenses paid to the Parent and the Offeror shall not exceed
$2 million; provided, further, that the amount of the Expenses paid shall be
credited against the Termination Fee; and provided, further, that if the Company
has paid the Termination Fee prior to any payment of Expenses, then no Expenses
shall be payable.
 
  The Stock Option and Tender Agreement
 
     Tender of the Shares and Stock Option. The Selling Stockholder has agreed
to tender to the Offeror all of the Subject Shares pursuant to the Offer no
later than the first business day following the commencement of the Offer and
not to withdraw any Subject Shares tendered into the Offer. The Selling
Stockholder has also granted to the Offeror an option (the "Stock Option") to
purchase all of the Subject Shares at a purchase
 
                                       30
<PAGE>   33
 
price equal to the Offer Price, exercisable at any time prior to the earlier of
(i) the Effective Time or (ii) 45 days after the date of the termination of the
Merger Agreement.
 
     Conditions to Delivery of the Shares. The Stock Option and Tender Agreement
provides that the obligation of the Selling Stockholder to deliver the Subject
Shares upon any exercise of the Stock Option is subject to the following
conditions: (i) all waiting periods under the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended (the "HSR Act"), applicable to such
exercise of the Stock Option shall have expired or been terminated, (ii) all
regulatory or supervisory agency approvals required by any applicable law, rule
or regulation shall have been obtained and each approval shall have become
final, and (iii) there shall be no preliminary or permanent injunction or other
order by any court of competent jurisdiction restricting, preventing or
prohibiting the exercise of the Stock Option and the delivery of the Subject
Shares pursuant to it.
 
     Representations and Warranties. The Stock Option and Tender Agreement
contains various customary representations and warranties by the Selling
Stockholder, including those relating to (i) title to the Shares being sold,
(ii) authority to execute, deliver and perform the Stock Option and Tender
Agreement, and (iii) waiver of certain rights of LNC as Designated Holder under
a promissory note issued by the Company. The Stock Option and Tender Agreement
also contains various customary representations and warranties by the Parent and
the Offeror, including those relating to the authority to execute, deliver and
perform the Stock Option and Tender Agreement, among others.
 
     Voting Agreement and Proxy. The Stock Option and Tender Agreement provides
that during the time the Stock Option and Tender Agreement is in effect, the
Selling Stockholder shall vote all of the Subject Shares (i) in favor of the
Merger, the Merger Agreement and any of the transactions contemplated by the
Merger Agreement and (ii) against any action or agreement that would impede,
interfere with or attempt to discourage the Offer or the Merger, or would result
in a breach in any material respect of any covenant, representation or warranty
or any other obligation of the Company under the Merger Agreement. The Stock
Option and Tender Agreement further provides that in the event the Selling
Stockholder shall fail to vote all of the Subject Shares in the manner described
in the preceding sentence, the Offeror will be irrevocably appointed the proxy
of the Selling Stockholder pursuant to Section 212 of the DGCL.
 
     Sale of the Subject Shares by the Offeror. The Stock Option and Tender
Agreement provides that if, subsequent to the exercise of the Stock Option but
prior to the Termination Date (as defined in the Stock Option and Tender
Agreement), the Offeror sells or disposes of the Subject Shares for cash or
securities in excess of the Offer Price, the Offeror will pay 50% of such excess
to the Selling Stockholder.
 
     Termination Date. The Stock Option and Tender Agreement will, subject to
the following sentence, terminate upon the earlier to occur of (i) the Effective
Time or (ii) the date four months after the date of termination of the Merger
Agreement, unless the Merger Agreement is terminated, generally, as a result of
(a) a breach by the Parent or the Offeror of its representations, warranties,
covenants or obligations under the Merger Agreement, (b) the Parent exercising
its right of termination or failing to timely commence the Offer, in either
case, at a time when no Acquisition Proposal shall be pending or have been
proposed or announced or (c) the mutual consent of the Parent and the Company.
Notwithstanding the foregoing, if (x) the Merger Agreement has been terminated
in a manner that causes the Stock Option and Tender Agreement to terminate four
months after the date of the termination of the Merger Agreement and (y) on the
date four months after the date of termination of the Merger Agreement the
Company shall be a party to an agreement with a party, other than the Parent (or
an affiliate of the Parent), that contemplates a merger, acquisition,
consolidation or similar transaction involving the Company or any of its
significant subsidiaries, or any purchase of all or any significant portion of
the assets or any equity securities of the Company or any of such significant
subsidiaries, then the Stock Option and Tender Agreement shall terminate on the
date nine months after the date of termination of the Merger Agreement.
 
                                       31
<PAGE>   34
 
14. DIVIDENDS AND DISTRIBUTIONS.
 
     The Merger Agreement provides that neither the Company nor any of its
subsidiaries will, among other things, prior to the Effective Time (i) declare,
set aside or pay any dividend (whether in cash, stock or property) or make any
other distribution or payment with respect to any shares of its capital stock,
other than (1) dividends declared prior to the date of the Merger Agreement and
(2) dividends payable to the Company declared by any of the Company's
subsidiaries, (ii) split, combine or reclassify any of its capital stock or
issue or authorize the issuance of any other securities in respect of, in lieu
of or in substitution for shares of its capital stock or (iii) purchase, redeem
or otherwise acquire any shares of capital stock of the Company or any of its
subsidiaries or any other securities thereof or any rights, warrants or options
to acquire any such shares or other securities; or issue, deliver, sell, pledge,
dispose of or otherwise encumber any shares of its capital stock, any other
voting securities or equity equivalent or any securities convertible into, or
any rights, warrants or options to acquire, any such shares, voting securities
or convertible securities or equity equivalent (other than, in the case of the
Company, the issuance of Shares during the period from the date of the Merger
Agreement through the Effective Time upon the exercise of certain outstanding
stock options of the Company on the date of the Merger Agreement in accordance
with their current terms).
 
15. CERTAIN CONDITIONS TO OFFEROR'S OBLIGATIONS.
 
     Notwithstanding any other term of the Offer or the Merger Agreement, the
Offeror shall not be required to accept for payment or pay for, subject to any
applicable rules and regulations of the Commission, including Rule 14e-1(c) of
the Exchange Act, any Shares not theretofore accepted for payment or paid for
and may terminate or amend the Offer as to such Shares unless (i) there shall
have been validly tendered and not withdrawn prior to the expiration of the
Offer that number of Shares which would represent at least a majority of the
outstanding Shares on a fully diluted basis, (ii) any waiting period under the
HSR Act applicable to the purchase of Shares pursuant to the Offer shall have
expired or been terminated and (iii) all necessary filings with the Department
of Corporations of California and the Office of the Commissioner of Insurance of
Wisconsin shall have been completed and each of them shall have issued an order
(which order shall not have been stayed or enjoined) that (x) constitutes a
final order approving, exempting or otherwise authorizing consummation of the
Offer and the Merger and all other transactions contemplated by the Merger
Agreement as may require such authorization and (y) does not impose on the
Company, the Parent, the Offeror or any of their respective affiliates any other
terms or conditions which in the reasonable opinion of the Parent materially and
adversely affect the economic benefits to the Parent of the transactions
contemplated by the Merger Agreement. Furthermore, notwithstanding any other
term of the Offer or the Merger Agreement, the Offeror shall not be required to
accept for payment or, subject as aforesaid, to pay for any Shares not
theretofore accepted for payment or paid for, and may terminate or amend the
Offer if at any time on or after the date of the Merger Agreement and before the
acceptance of such Shares for payment or the payment therefor, any of the
following conditions exist or shall occur and remain in effect:
 
          (a) there shall have been instituted or pending any action or
     proceeding by any governmental, regulatory or administrative agency or
     authority, which (i) seeks to challenge the acquisition by the Parent of
     Shares pursuant to the Offer, restrain, prohibit or delay the making or
     consummation of the Offer or the Merger, or obtain any material damages in
     connection therewith, (ii) seeks to make the purchase of or payment for
     some or all of the Shares pursuant to the Offer or the Merger illegal,
     (iii) seeks to impose material limitations on the ability of the Parent (or
     any of its affiliates) effectively to acquire or hold, or to require the
     Parent or the Company or any of their respective affiliates or subsidiaries
     to dispose of or hold separate, any material portion of the assets or the
     business of the Parent and its affiliates taken as a whole or the Company
     and its subsidiaries taken as a whole, or (iv) seeks to impose material
     limitations on the ability of the Parent (or its affiliates) to exercise
     full rights of ownership of the Shares purchased by it, including, without
     limitation, the right to vote the Shares purchased by it on all matters
     properly presented to the stockholders of the Company; or
 
          (b) there shall have been promulgated, enacted, entered, enforced or
     deemed applicable to the Offer or the Merger, by any state, federal or
     foreign government or governmental authority or by any court, domestic or
     foreign, any statute, rule, regulation, judgment, decree, order or
     injunction, that could
 
                                       32
<PAGE>   35
 
     reasonably be expected to, in the judgment of the Parent, directly or
     indirectly, result in any of the consequences referred to in clauses (i)
     through (iv) of subsection (a) above; or
 
          (c) there shall have occurred (i) any general suspension of trading
     in, or limitation on prices for, securities on any national securities
     exchange or in the over-the-counter market in the United States, (ii) the
     declaration of a banking moratorium or any suspension of payments in
     respect of banks in the United States, (iii) the commencement of a war,
     armed hostilities or other international or national calamity directly or
     indirectly involving the United States which would reasonably be expected
     to have a Material Adverse Effect on the Company or prevent (or materially
     delay) the consummation of the Offer, (iv) any limitation (whether or not
     mandatory) by any governmental or regulatory authority on, or any other
     event which, in the reasonable judgment of the Parent, is reasonably likely
     to materially adversely affect, the nature or extension of credit or
     further extension of credit by banks or other lending institutions in the
     United States, or (v) from the date of the Merger Agreement through the
     date of termination or expiration of the Offer, a decline of at least 25%
     in either the Dow Jones Industrial Average or the Standard & Poor's 500
     Index; or
 
          (d) the Company and the Parent shall have reached an agreement or
     understanding that the Offer or the Merger Agreement be terminated or the
     Merger Agreement shall have been terminated in accordance with its terms;
     or
 
          (e) any of the representations and warranties made by the Company in
     the Merger Agreement shall not have been true and correct in all material
     respects when made, or shall thereafter have ceased to be true and correct
     in any material respect as if made as of such later date (other than
     representations and warranties made as of a specified date), or the Company
     shall not in all material respects have performed each obligation and
     agreement and complied with each covenant to be performed and complied with
     by it under the Merger Agreement; provided, however, that all references in
     the Merger Agreement to the phrases "knowledge of the Company" and "to the
     best knowledge of the Company," and variants thereof, shall be disregarded
     for the purposes of determining whether the Company shall have breached its
     representations, warranties and covenants resulting in the ability of the
     Parent to terminate the Merger Agreement pursuant to this clause (e); or
 
          (f) the Company's Board of Directors shall have modified or amended
     its recommendation of the Offer in any manner adverse to the Parent or
     shall have withdrawn its recommendation of the Offer, or shall have
     recommended acceptance of any Acquisition Proposal or shall have resolved
     to do any of the foregoing, or shall have failed to reject any Acquisition
     Proposal within 10 business days after receipt by the Company or public
     announcement thereof; or
 
          (g) (i) any corporation, entity, person or "group" (as defined in
     Section 13(d)(3) of the Exchange Act) other than the Parent, shall have
     acquired beneficial ownership of 50% or more of the outstanding Shares, or
     shall have been granted any options or rights, conditional or otherwise, to
     acquire a total of 50% or more of the outstanding Shares; (ii) any new
     group shall have been formed which beneficially owns 50% or more of the
     outstanding Shares; or (iii) any person (other than the Parent or one or
     more of its affiliates) shall have entered into an agreement in principle
     or definitive agreement with the Company with respect to a tender or
     exchange offer for any Shares or a merger, consolidation or other business
     combination with or involving the Company.
 
     The foregoing conditions are for the sole benefit of the Parent and the
Offeror and may be asserted by the Parent or the Offeror regardless of the
circumstances giving rise to any such condition and may be waived by the Parent
or the Offeror, in whole or in part, at any time and from time to time, in the
sole discretion of the Parent or the Offeror. The failure by the Parent or the
Offeror at any time to exercise any of the foregoing rights will not be deemed a
waiver of any right, the waiver of such right with respect to any particular
facts or circumstances shall not be deemed a waiver with respect to any other
facts or circumstances, and each right will be deemed an ongoing right which may
be asserted at any time and from time to time.
 
     Should the Offer be terminated pursuant to the foregoing provisions, all
tendered Shares not theretofore accepted for payment shall forthwith be returned
by the Depositary to the tendering stockholders.
 
                                       33
<PAGE>   36
 
16. CERTAIN REGULATORY AND LEGAL MATTERS.
 
     Except as set forth in this Section, the Offeror is not aware of any
approval or other action by any governmental or administrative agency which
would be required for the acquisition or ownership of Shares by the Offeror as
contemplated herein. Should any such approval or other action be required, it
will be sought, but the Offeror has no current intention to delay the purchase
of Shares tendered pursuant to the Offer pending the outcome of any such matter,
subject, however, to the Offeror's right to decline to purchase Shares if any of
the conditions specified in Section 15 shall have occurred. There can be no
assurance that any such approval or other action, if needed, would be obtained
or would be obtained without substantial conditions, or that adverse
consequences might not result to the Company's business or that certain parts of
the Company's business might not have to be disposed of if any such approvals
were not obtained or other action taken.
 
     Antitrust. Under the provisions of the HSR Act applicable to the Offer, the
acquisition of Shares under the Offer may be consummated following the
expiration of a 15-day waiting period following the filing by the Parent of a
Notification and Report Form with respect to the Offer, unless the Parent
receives a request for additional information or documentary material from the
Department of Justice, Antitrust Division (the "Antitrust Division") or the
Federal Trade Commission ("FTC") or unless early termination of the waiting
period is granted. The Offeror made such a filing on August 14, 1995 and,
accordingly, the initial waiting period will expire on August 29, 1995. If,
within the initial 15-day waiting period, either the Antitrust Division or the
FTC request additional information or material from the Parent concerning the
Offer, the waiting period will be extended to the tenth calendar day after the
date of substantial compliance by the Parent with such request. Complying with a
request for additional information or material can take a significant amount of
time.
 
     The Antitrust Division and the FTC frequently scrutinize the legality under
the antitrust laws of transactions such as the Offeror's proposed acquisition of
the Company. At any time before or after the Offeror's acquisition of Shares
pursuant to the Offer, the Antitrust Division or the FTC could take such action
under the antitrust laws as either deems necessary or desirable in the public
interest, including seeking to enjoin the purchase of Shares pursuant to the
Offer or the consummation of the Merger or seeking the divestiture of Shares
acquired by the Offeror or the divestiture of substantial assets of the Company
or its subsidiaries or the Parent or its subsidiaries. Private parties may also
bring legal action under the antitrust laws under certain circumstances. There
can be no assurance that a challenge to the Offer on antitrust grounds will not
be made, or, if such a challenge is made, of the result thereof.
 
     If any applicable waiting period under the HSR Act has not expired or been
terminated prior to the Expiration Date, the Offeror will not be obligated to
proceed with the Offer or the purchase of any Shares not theretofore purchased
pursuant to the Offer. See Section 15.
 
     OCI Regulation. Section 611.72 of the Wisconsin Insurance Code (the
"Wisconsin Code") and section 40.02 of the Insurance chapter of the Wisconsin
Administrative Code provide that a person other than the insurer shall not make
a tender offer for or a request or invitation for tenders of, seek to acquire or
acquire any voting security of a domestic insurer (defined for this purpose to
include any company controlling such a domestic insurer) if, at the completion
of such acquisition, the person would be in control of the domestic insurer
unless the person has filed with the Office of the Commissioner of Insurance
(the "OCI") and has sent to the insurer a Form A acquisition statement
containing the information required by the OCI, and the offer, request,
invitation, agreement or acquisition has been approved by the OCI in the manner
prescribed by Section 611.72(2) of the Wisconsin Code. For purposes of the
Wisconsin Code the Company is deemed to be a company controlling EHI, which is a
Wisconsin domestic insurer. The Offeror and the Parent intend to submit their
Form A to the OCI for the approval of the Offer as soon as practicable. There is
no statutory time period within which the OCI must respond to a request for
approval. Under Section 611.72(3), the OCI is required to hold a hearing on the
proposed acquisition of control.
 
     DOC Regulation. The Company owns and operates, through EHI, a health care
service plan in the State of California named HMO California. The regulation of
such plans has been entrusted exclusively to the Department of Corporations
("DOC") of the State of California. The Knox-Keene Health Care Service Plan Act
of 1975 requires any person seeking to operate a health care service plan to
secure and maintain a license
 
                                       34
<PAGE>   37
 
to do so from the DOC. The Merger is a change in ownership of HMO California and
as such will require approval of the DOC as a material modification of the HMO
California license application. A similar material modification was granted to
the HMO California in March, 1995, in connection with its acquisition by EHI.
The Offeror and the Parent intend to seek another material modification of the
HMO California license in connection with the Offer and the Merger.
 
     Other State Insurance Regulation. EHI must be authorized by issuance of a
certificate of authority to operate as an insurance company by the insurance
regulatory body of each jurisdiction in which it solicits insurance business. To
retain its certificate of authority, EHI is required to file periodic reports
with and is subject to periodic financial and market conduct examinations by
such regulatory bodies. Further, many jurisdictions require that EHI file with
the insurance regulatory body the insurance forms which EHI intends to issue, as
well as any revisions thereto. In a limited number of states, such filings also
include the rates that EHI intends to apply to insured groups located in that
jurisdiction. In certain jurisdictions, the rates set forth in the filing must
be approved by the insurance regulatory body before they can be implemented by
EHI. Virtually every state requires EHI to include in the coverages it offers
for sale in that jurisdiction certain so-called "mandated benefits." Legislation
has also been enacted in a number of states which restricts the ability of
insurers to limit the number of health care providers the insurer contracts
with.
 
     EHI is subject to state laws and regulations that require diversification
of its investment portfolio and limit the amount of investments in certain
investment categories. Failure to comply with the laws and regulations would
cause non-conforming investments to be treated as non-admitted assets for
purposes of measuring statutory surplus and, in some instances, would require
divestiture.
 
     If the Offeror and the Parent acquire a controlling interest in the
Company, certain other state insurance authorities may review the Company's
license to conduct insurance business in such states. There can be no assurance
that any such review will not result in adverse action being taken against EHI.
The Offeror and the Parent currently believe that the approval by other state
insurance regulatory authorities of the Offeror's purchase of Shares pursuant to
the Offer is not required. However, no assurance can be given that other state
insurance regulatory authorities will not assert jurisdiction over the Offer or
that such approvals are not required.
 
     State Takeover Laws. The Company is incorporated under the laws of the
State of Delaware. In general, Section 203 of the DGCL ("Section 203") prevents
an "interested stockholder" (including a person who owns or has the right to
acquire 15% or more of a corporation's outstanding voting stock) from engaging
in a "business combination" (defined to include mergers and certain other
actions) with a Delaware corporation for a period of three years following the
date such person became an interested stockholder unless, among other things, a
corporation in its certificate of incorporation elects not to be subject to
Section 203. The Company's certificate of incorporation provides that the
Company is not subject to Section 203. Accordingly, Section 203 is inapplicable
to the Offer and the Merger.
 
     A number of other states have adopted laws and regulations applicable to
attempts to acquire securities of corporations which are incorporated, or have
substantial assets, stockholders, principal executive offices or principal
places of business, or whose business operations otherwise have substantial
economic effects in such states. In Edgar v. MITE Corp., in 1982, the Supreme
Court of the United States (the "U.S. Supreme Court") invalidated on
constitutional grounds the Illinois Business Takeover statute, which, as a
matter of state securities law, made takeovers of corporations meeting certain
requirements more difficult. However in 1987, in CTS Corp. v. Dynamics Corp. of
America, the U.S. Supreme Court held that the State of Indiana may, as a matter
of corporate law and, in particular, with respect to those aspects of corporate
law concerning corporate governance, constitutionally disqualify a potential
acquirer from voting on the affairs of a target corporation without the prior
approval of the remaining stockholders. The state law before the U.S. Supreme
Court was by its terms applicable only to corporations that had a substantial
number of stockholders in the state and were incorporated there.
 
     The Company, directly or through subsidiaries, conducts business in a
number of states throughout the United States, some of which have enacted
takeover laws. The Offeror does not know whether any of these laws will, by
their terms, apply to the Offer or the Merger and has not complied with any such
laws. Should
 
                                       35
<PAGE>   38
 
any person seek to apply any state takeover law, the Offeror will take such
action as then appears desirable, which may include challenging the validity or
applicability of any such statute in appropriate court proceedings. In the event
it is asserted that one or more state takeover laws is applicable to the Offer
or the Merger, and an appropriate court does not determine that it is
inapplicable or invalid as applied to the Offer, the Offeror might be required
to file certain information with, or receive approvals from, the relevant state
authorities. In addition, if enjoined, the Offeror might be unable to accept for
payment any Shares tendered pursuant to the Offer, or be delayed in continuing
or consummating the Offer and the Merger. In such case, the Offeror may not be
obligated to accept for payment any Shares tendered. See Section 15.
 
17. FEES AND EXPENSES.
 
     Neither the Offeror nor the Parent, nor any officer, director, stockholder,
agent or other representative of the Offeror or the Parent, will pay any fees or
commissions to any broker, dealer or other person (other than the Dealer
Manager, the Information Agent and the Depositary) for soliciting tenders of
Shares pursuant to the Offer. Brokers, dealers, commercial banks and trust
companies and other nominees will, upon request, be reimbursed by the Offeror
for customary mailing and handling expenses incurred by them in forwarding
materials to their customers.
 
     Smith Barney Inc. ("Smith Barney") is acting as Dealer Manager in
connection with the Offer and has provided certain financial advisory services
to the Parent and the Offeror in connection with the proposed acquisition of the
Shares. Pursuant to its engagement letter with Smith Barney, the Parent paid
Smith Barney a retainer of $100,000 upon the execution of the engagement letter
and has agreed to pay Smith Barney a transaction fee of $5,250,000 (against
which the retainer will be credited), payable upon the acquisition of a majority
of the outstanding Shares. If the Parent receives the Termination Fee, Smith
Barney would be entitled to receive 15% of that amount (against which the
retainer would be credited). In addition, the Offeror has agreed to reimburse
Smith Barney for certain reasonable out-of-pocket expenses incurred by Smith
Barney in connection with the Offer, including the reasonable fees of its
counsel (subject to certain limitations), and to indemnify Smith Barney against
certain liabilities and expenses, including certain liabilities under the
federal securities laws.
 
     The Offeror has retained D.F. King & Co., Inc., as Information Agent, and
Chemical Mellon Shareholder Services, as Depositary, in connection with the
Offer. The Information Agent and the Depositary will receive reasonable and
customary compensation for their services hereunder and reimbursement for their
reasonable out-of-pocket expenses. The Information Agent and the Depositary will
also be indemnified by the Offeror against certain liabilities in connection
with the Offer.
 
18. MISCELLANEOUS.
 
     The Offer is not being made to, nor will tenders be accepted from or on
behalf of, holders of Shares residing in any jurisdiction in which the making or
acceptance thereof would not be in compliance with the securities, blue sky or
other laws of such jurisdiction. In any jurisdiction where the securities, blue
sky or other laws require the Offer to be made by a licensed broker or dealer,
the Offer shall be deemed to be made on behalf of the Offeror by the Dealer
Manager or one or more registered brokers or dealers licensed under the laws of
such jurisdiction.
 
     No person has been authorized to give any information or make any
representation on behalf of the Offeror other than as contained in this Offer to
Purchase or in the Letter of Transmittal, and, if any such information or
representation is given or made, it should not be relied upon as having been
authorized by the Offeror.
 
                                       36
<PAGE>   39
 
     The Offeror and the Parent have filed with the Commission the Schedule
14D-1, pursuant to Section 14(d)(1) of the Exchange Act and Rule 14d-1
promulgated thereunder, furnishing certain information with respect to the
Offer. Such Schedule 14D-1 and any amendments thereto, including exhibits, may
be examined and copies may be obtained at the same places and in the same manner
as set forth with respect to the Company in Section 8 (except that they will not
be available at the regional offices of the Commission).
 
                                            HEW, INC.
 
August 16, 1995
 
                                       37
<PAGE>   40
 
                                                                         ANNEX I
 
           CERTAIN INFORMATION CONCERNING THE DIRECTORS AND EXECUTIVE
                     OFFICERS OF THE PARENT AND THE OFFEROR
 
     1. DIRECTORS AND EXECUTIVE OFFICERS OF THE PARENT. Set forth below are the
name, age, current business address, citizenship, present principal occupation
or employment and five-year employment history of each director and executive
officer of the Parent. Unless otherwise indicated, each person identified below
has been employed by the Parent for the last five years, and each such person's
business address is The Humana Building, 500 West Main Street, Louisville,
Kentucky 40202. All persons listed below are citizens of the United States.
 
<TABLE>
<CAPTION>
                                                                           SERVED
                                                                          IN SUCH      FIRST
                                                                          CAPACITY     ELECTED
           NAME               AGE                 POSITION                 SINCE       OFFICER
--------------------------    ---     --------------------------------    --------     -----
<S>                           <C>     <C>                                 <C>          <C>
David A. Jones                64      Chairman of the Board and Chief       08/69      09/64
                                        Executive Officer
Wayne T. Smith                49      President and Chief Operating         03/93      06/78
                                        Officer and Director
K. Frank Austen, M.D.(1)      67      Director                              01/90
Michael E. Gellert(2)         64      Director                              02/68
John R. Hall(3)               62      Director                              05/92
David A. Jones, Jr.(4)        37      Director                              05/93
Irwin Lerner(5)               64      Director                              11/93
W. Ann Reynolds, Ph.D.(6)     57      Director                              01/91
W. Larry Cash                 46      Senior Vice President -- Finance      09/88      08/82
                                        and Operations
Karen A. Coughlin             47      Senior Vice President -- Region       02/93      09/88
                                        II
W. Roger Drury                48      Chief Financial Officer               05/92      08/83
Philip B. Garmon              51      Senior Vice President -- Region       09/88      11/82
                                        I
Arthur P. Hipwell             46      Senior Vice President and             06/94      08/90(7)
                                        General Counsel
Ronald S. Lankford, M.D.      43      Senior Vice President -- Medical      03/93      08/87
                                        Affairs
James E. Murray               41      Vice President and Controller         03/93      08/90
</TABLE>
 
---------------
 
(1) K. Frank Austen, M.D., has been a Director of the Parent since January,
     1990. He is Chairman of the Division of Rheumatology and Immunology at
     Brigham and Women's Hospital in Boston, Massachusetts, having held that
     position since 1980. He also serves as a professor of medicine on the
     faculty of Harvard Medical School. In addition, Dr. Austen is a member of
     the Board of Trustees of Amherst College. Dr. Austen's business address is
     Brigham and Women's Hospital, Harvard Medical School, The Seeley G. Mudd
     Building, 250 Longwood Avenue, Boston, Massachusetts 02115.
 
(2) Michael E. Gellert has been a Director of the Parent since February, 1968.
     He is general partner of Windcrest Partners, a private investment
     partnership in New York, New York, having held that position since April
     1967. Mr. Gellert's business address is 122 East 42nd Street, New York, New
     York 10168.
 
(3) John R. Hall has been a Director of the Parent since May, 1992. He is
     Chairman of the Board of Directors and Chief Executive Officer of Ashland,
     Inc., in Ashland, Kentucky, positions he has held since 1981. He is also a
     member of American Petroleum Institute Executive Committee, a member of
     Transylvania University Board of Trustees and Vanderbilt University Board
     of Trust. Mr. Hall's business address is 1000 Ashland Drive, Russell,
     Kentucky 41169.
 
(4) David A. Jones, Jr., has been a Director of the Parent since May, 1993. He
     is a managing director of Chrysalis Ventures, Inc., a venture capital firm
     in Louisville, Kentucky, and is the son of David A. Jones,
 
                                       A-1
<PAGE>   41
 
     Chairman of the Board and Chief Executive Officer of the Parent. From
     October 1992 to December 1993, Mr. Jones, Jr., was an attorney with the law
     firm now known as Hirn Doheny Reed & Harper in Louisville, Kentucky. He
     previously served with the U.S. Department of State from 1988 to 1992, most
     recently as an attorney-advisor to the Bureau of East Asian and Pacific
     Affairs. Mr. Jones's business address is 400 West Market Street,
     Louisville, Kentucky 40202.
 
(5)  Irwin Lerner has been a Director of the Parent since November, 1993. He
     retired on September 1, 1993 as Chairman of the Board and Executive
     Committee of Hoffmann-La Roche Inc. From April 1, 1980 to December 30,
     1992, Mr. Lerner was Hoffmann-La Roche Inc.'s President and Chief Executive
     Officer. He presently serves on the boards of Project Hope, Rutgers
     University, the New Jersey Chamber of Commerce, the U.S. Advisory Board of
     the Zurich Insurance Company and is Chairman of the Board of the New Jersey
     Governor's Council for a Drug Free Workplace. In addition, he is Chairman
     of the Board of Sequana Therapeutics, Inc. and a principal and director of
     Physicians Television Network, a private company. He is a Distinguished
     Executive-in-Residence at the Rutgers University Graduate School of
     Management in Newark, New Jersey. Mr. Lerner's business address is 17 East
     Greenbrook Road, North Caldwell, New Jersey 07006.
 
(6)  W. Ann Reynolds, Ph.D., has been a Director of the Parent since January,
     1991. She is Chancellor-City University of New York, in New York, New York,
     having held that position since September 1990. She previously served for
     eight years as Chancellor of the California State University system. Dr.
     Reynolds' business address is 535 East 80th Street, New York, New York
     10021.
 
(7)  Mr. Hipwell was initially elected an officer of the Parent in 1990 and
     previously served in this same capacity since July 1992. Effective with the
     Parent's spinoff (the "Spinoff") of its Galen Health Care, Inc. subsidiary
     ("Galen"), he became Senior Vice President and General Counsel of Galen.
     Mr. Hipwell rejoined the Parent in January 1994 and was named Senior Vice
     President and General Counsel of the Parent on June 15, 1994.
 
     2. DIRECTORS AND EXECUTIVE OFFICERS OF THE OFFEROR. Unless otherwise
indicated, each person identified below has been employed by the Parent for the
last five years and all information concerning the current business address,
present principal occupation or employment and five-year employment history for
each person is the same as the information given above. Each person was elected
in July 1995. Directors of the Offeror are indicated with an asterisk. All
persons listed below are citizens of the United States.
 
<TABLE>
        <S>                                        <C>
        *Wayne T. Smith..........................  President and Chief Operating Officer
         W. Roger Drury..........................  Chief Financial Officer
        *W. Larry Cash...........................  Senior Vice President
        *Karen A. Coughlin.......................  Senior Vice President
        *Philip B. Garmon........................  Senior Vice President
         Ronald S. Lankford, M.D.................  Senior Vice President
         James E. Murray.........................  Vice President and Controller
         Joan O. Kroger(1).......................  Secretary
</TABLE>
 
---------------
 
(1)  Ms. Kroger was initially elected Secretary of the Parent in 1992. Prior to
     that time, she served as Assistant Secretary. Effective with the Spinoff,
     she became Secretary of Galen, and, after subsequent mergers, Columbia/HCA
     Healthcare Corporation. Ms. Kroger rejoined the Parent in July 1994 as
     Secretary. Ms. Kroger is 41 years old and her business address is The
     Humana Building, 500 West Main Street, Louisville, Kentucky 40202.
 
                                       A-2
<PAGE>   42
 
     Facsimile copies of the Letter of Transmittal will be accepted. The Letter
of Transmittal and certificates for Shares and any other required documents
should be sent or delivered by each stockholder of the Company or his broker,
dealer, commercial bank, trust company or other nominee to the Depositary at one
of the addresses set forth below:
 
                        The Depositary for the Offer is:
 
                      CHEMICAL MELLON SHAREHOLDER SERVICES
                             ---------------------
 
<TABLE>
<S>                             <C>                             <C>
By Hand:                        By Mail:                        By Overnight Courier:
Chemical Mellon Shareholder     Chemical Mellon Shareholder     Chemical Mellon Shareholder
  Services                        Services                        Services
Reorganization Department       Reorganization Department       Reorganization Department
120 Broadway - 13th Floor       P.O. Box 817                    85 Challenger Road
New York, N.Y. 10271            Midtown Station                 Overpeck Centre
                                New York, N.Y. 10018            Ridgefield Park, N.J. 07660
</TABLE>
 
                      Facsimile for Eligible Institutions:
 
                                 (201) 296-4293
 
                              To confirm fax only:
 
                                 (201) 296-4209
 
     Any questions or requests for assistance or additional copies of the Offer
to Purchase and the Letter of Transmittal and Notice of Guaranteed Delivery may
be directed to the Information Agent or the Dealer Manager at their respective
telephone numbers and locations listed below. Stockholders may also contact
their broker, dealer, commercial bank, trust company or other nominee for
assistance concerning the Offer.
 
                    The Information Agent for the Offer is:
 
                             D.F. KING & CO., INC.
 
                                77 WATER STREET
                            NEW YORK, NEW YORK 10005
                 BANKS AND BROKERS CALL COLLECT: (212) 269-5550
                   ALL OTHERS CALL TOLL-FREE: (800) 755-3107
 
                      The Dealer Manager for the Offer is:
 
                               SMITH BARNEY INC.
 
                              388 GREENWICH STREET
                            NEW YORK, NEW YORK 10013
                                 (212) 816-7620

<PAGE>   1
 
                             LETTER OF TRANSMITTAL
                        TO TENDER SHARES OF COMMON STOCK
 
                                       OF
 
                         EMPHESYS FINANCIAL GROUP, INC.
                       PURSUANT TO THE OFFER TO PURCHASE
                             DATED AUGUST 16, 1995
 
                                       BY
 
                                   HEW, INC.
                          A WHOLLY OWNED SUBSIDIARY OF
 
                                  HUMANA INC.
 
                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON FRIDAY, SEPTEMBER 15, 1995,
                         UNLESS THE OFFER IS EXTENDED.
 
                                THE DEPOSITARY:
 
                      CHEMICAL MELLON SHAREHOLDER SERVICES
 
<TABLE>
<S>                             <C>                             <C>
By Hand:                        By Mail:                        By Overnight Courier:
Chemical Mellon Shareholder     Chemical Mellon Shareholder     Chemical Mellon Shareholder
  Services                        Services                        Services
Reorganization Department       Reorganization Department       Reorganization Department
120 Broadway - 13th Floor       P.O. Box 817                    85 Challenger Road
New York, N.Y. 10271            Midtown Station                 Overpeck Centre
                                New York, N.Y. 10018            Ridgefield Park, N.J. 07660
</TABLE>
 
                      Facsimile for Eligible Institutions:
                                 (201) 296-4293
 
                              To confirm fax only:
                                 (201) 296-4209
 
                             ---------------------
 
     DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS, OR TRANSMISSION OF
INSTRUCTIONS VIA A FACSIMILE OTHER THAN AS SET FORTH ABOVE, DOES NOT CONSTITUTE
A VALID DELIVERY. YOU MUST SIGN THIS LETTER OF TRANSMITTAL IN THE APPROPRIATE
SPACE THEREFOR PROVIDED BELOW AND COMPLETE THE SUBSTITUTE FORM W-9 SET FORTH
BELOW.
<PAGE>   2
 
     THE INSTRUCTIONS ACCOMPANYING THIS LETTER OF TRANSMITTAL SHOULD BE READ
CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.
 
     This Letter of Transmittal is to be completed by stockholders of EMPHESYS
Financial Group, Inc. if certificates are to be forwarded herewith or, unless an
Agent's Message (as defined in the Offer to Purchase) is utilized, if delivery
of Shares (as defined below) is to be made by book-entry transfer to the
Depositary's account at The Depository Trust Company, the Midwest Securities
Trust Company or the Philadelphia Depository Trust Company (hereinafter
collectively referred to as the "Book-Entry Transfer Facilities") pursuant to
the procedures set forth in Section 3 of the Offer to Purchase (as defined
below).
 
     Stockholders whose certificates for Shares are not immediately available or
who cannot deliver their Shares and all other documents required hereby to the
Depositary by the Expiration Date (as defined in the Offer to Purchase), or who
cannot comply with the book-entry transfer procedures on a timely basis, may
nevertheless tender their Shares pursuant to the guaranteed delivery procedures
set forth in Section 3 of the Offer to Purchase. See Instruction 2.
 
<TABLE>
<S>                                                                     <C>          <C>             <C>
------------------------------------------------------------------------------------------------------------------
DESCRIPTION OF SHARES TENDERED
------------------------------------------------------------------------------------------------------------------
NAME(S) AND ADDRESS(ES) OF REGISTERED HOLDER(S)                                        SHARES TENDERED
(PLEASE FILL IN, IF BLANK)                                                  (ATTACH ADDITIONAL LIST IF NECESSARY)
------------------------------------------------------------------------------------------------------------------
                                                                                        NUMBER OF
                                                                            SHARE         SHARES        NUMBER OF
                                                                         CERTIFICATE  REPRESENTED BY      SHARES
                                                                         NUMBER(S)*  CERTIFICATE(S)*    TENDERED**
                                                                         ------------------------------------------
                                                                         ------------------------------------------
                                                                         ------------------------------------------
                                                                         ------------------------------------------
                                                                         ------------------------------------------
                                                                        Total Shares
------------------------------------------------------------------------------------------------------------------
   * Need not be completed by stockholders tendering by book-entry transfer.
  ** Unless otherwise indicated, it will be assumed that all Shares represented by any certificates delivered to the
  Depositary are
    being tendered. See Instruction 4.
------------------------------------------------------------------------------------------------------------------
</TABLE>
 
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY
 
/ / CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED BY BOOK-ENTRY TRANSFER TO
    THE DEPOSITARY'S ACCOUNT AT ONE OF THE BOOK-ENTRY TRANSFER FACILITIES AND
    COMPLETE THE FOLLOWING:
Name of Tendering Institution__________________________________________________

Account No.__________________________________________________________________at
 
     / / The Depository Trust Company
     / / Midwest Securities Trust Company
     / / Philadelphia Depository Trust Company

Transaction Code No.___________________________________________________________
 
/ / CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED PURSUANT TO A NOTICE OF
    GUARANTEED DELIVERY PREVIOUSLY SENT TO THE DEPOSITARY AND COMPLETE THE
    FOLLOWING:
Name(s) of Tendering Stockholder(s)____________________________________________

Date of Execution of Notice of Guaranteed Delivery_____________________________

Window Ticket Number (if any)__________________________________________________
<PAGE>   3
 
Name of Institution which Guaranteed Delivery __________________________________
If delivery is by book-entry transfer __________________________________________
     Name of Tendering Institution _____________________________________________
     Account No. ____________________________________________________________ at
 
     / / The Depository Trust Company
     / / Midwest Securities Trust Company
     / / Philadelphia Depository Trust Company
     Transaction Code No. ______________________________________________________
 
                             --------------------------
<PAGE>   4
 
Ladies and Gentlemen:
 
     The undersigned hereby tenders to HEW, Inc. (the "Offeror"), a Delaware
corporation and a wholly owned subsidiary of Humana Inc., a Delaware corporation
(the "Parent"), the above-described shares of common stock, $0.01 par value per
share (the "Shares"), of EMPHESYS Financial Group, Inc., a Delaware corporation
(the "Company"), pursuant to the Offeror's offer to purchase all of the
outstanding Shares at a purchase price of $37.50 per Share, net to the seller in
cash, without interest, upon the terms and subject to the conditions set forth
in the Offer to Purchase, dated August 16, 1995 (the "Offer to Purchase"),
receipt of which is hereby acknowledged, and in this Letter of Transmittal
(which together with the Offer to Purchase constitute the "Offer"). The Offer is
being made in connection with the Agreement and Plan of Merger, dated as of
August 9, 1995, among the Parent, the Offeror and the Company.
 
     Subject to and effective upon acceptance for payment of and payment for the
Shares tendered herewith, the undersigned hereby sells, assigns and transfers to
or upon the order of the Offeror all right, title and interest in and to all the
Shares that are being tendered hereby (and any and all other Shares or other
securities issued or issuable in respect thereof on or after August 7, 1995) and
appoints the Depositary the true and lawful agent and attorney-in-fact of the
undersigned with respect to such Shares (and all such other Shares or
securities), with full power of substitution (such power of attorney being
deemed to be an irrevocable power coupled with an interest), to (a) deliver
certificates for such Shares (and all such other Shares or securities), or
transfer ownership of such Shares (and all such other Shares or securities) on
the account books maintained by any of the Book-Entry Transfer Facilities,
together, in any such case, with all accompanying evidences of transfer and
authenticity, to or upon the order of the Offeror, (b) present such Shares (and
all such other Shares or securities) for transfer on the books of the Company
and (c) receive all benefits and otherwise exercise all rights of beneficial
ownership of such Shares (and all such other Shares or securities), all in
accordance with the terms of the Offer.
 
     The undersigned hereby irrevocably appoints W. Roger Drury and Arthur P.
Hipwell and each of them, the attorneys and proxies of the undersigned, each
with full power of substitution, to exercise all voting and other rights of the
undersigned in such manner as each such attorney and proxy or his substitute
shall in his sole judgment deem proper, with respect to all of the Shares
tendered hereby which have been accepted for payment by the Offeror prior to the
time of any vote or other action (and any and all other Shares or other
securities or rights issued or issuable in respect of such Shares on or after
August 7, 1995), at any meeting of stockholders of the Company (whether annual
or special and whether or not an adjourned meeting) or otherwise. This proxy is
irrevocable and is granted in consideration of, and is effective upon, the
acceptance for payment of such Shares by the Offeror in accordance with the
terms of the Offer. Such acceptance for payment shall revoke any other proxy or
written consent granted by the undersigned at any time with respect to such
Shares (and all such other Shares or other securities or rights), and no
subsequent proxies will be given or written consents will be executed by the
undersigned (and if given or executed, will not be deemed effective).
 
     The undersigned hereby represents and warrants that the undersigned has
full power and authority to tender, sell, assign and transfer the Shares
tendered hereby (and any and all other Shares or other securities or rights
issued or issuable in respect of such Shares on or after August 7, 1995) and
that when the same are accepted for payment by the Offeror, the Offeror will
acquire good and unencumbered title thereto, free and clear of all liens,
restrictions, charges and encumbrances and not subject to any adverse claims.
The undersigned will, upon request, execute and deliver any additional documents
deemed by the Depositary or the Offeror to be necessary or desirable to complete
the sale, assignment and transfer of the Shares tendered hereby (and all such
other Shares or other securities or rights).
 
     All authority herein conferred or agreed to be conferred shall survive the
death or incapacity of the undersigned, and any obligation of the undersigned
hereunder shall be binding upon the heirs, personal representatives, successors
and assigns of the undersigned. Except as stated in the Offer, this tender is
irrevocable.
<PAGE>   5
 
     The undersigned understands that tenders of Shares pursuant to any one of
the procedures described in Section 3 of the Offer to Purchase and in the
instructions hereto will constitute an agreement between the undersigned and the
Offeror upon the terms and subject to the conditions of the Offer.
 
     Unless otherwise indicated under "Special Payment Instructions," please
issue the check for the purchase price of any Shares purchased, and return any
Shares not tendered or not purchased, in the name(s) of the undersigned (and, in
the case of Shares tendered by book-entry transfer, by credit to the account at
the Book-Entry Transfer Facility designated above). Similarly, unless otherwise
indicated under "Special Delivery Instructions," please mail the check for the
purchase price of any Shares purchased and return any certificates for Shares
not tendered or not purchased (and accompanying documents, as appropriate) to
the undersigned at the address shown below the undersigned's signature(s). In
the event that both "Special Payment Instructions" and "Special Delivery
Instructions" are completed, please issue the check for the purchase price of
any Shares purchased and return any Shares not tendered or not purchased in the
name(s) of, and mail said check and any certificates to, the person(s) so
indicated. The undersigned recognizes that the Offeror has no obligation,
pursuant to the "Special Payment Instructions," to transfer any Shares from the
name of the registered holder(s) thereof if the Offeror does not accept for
payment any of the Shares so tendered.
 
                          SPECIAL PAYMENT INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
     To be completed ONLY if the check for the purchase price of Shares
purchased or certificates for Shares not tendered or not purchased are to be
issued in the name of someone other than the undersigned, or if Shares tendered
by book-entry transfer that are not purchased are to be returned by credit to an
account at one of the Book-Entry Transfer Facilities other than that designated
above.
Issue check and/or certificates to:
Name ___________________________________________________________________________
                                    (Please Print)
Address ________________________________________________________________________

        ________________________________________________________________________
                                                                      (Zip Code)
        ________________________________________________________________________
                         (Taxpayer Identification No.)
 
                           (See Substitute Form W-9)
 
/ / Credit unpurchased Shares tendered by book-entry transfer to the account set
    forth below:
Name of Account Party __________________________________________________________
Account No. ____________________________________________________________________
  at
  / / The Depository Trust Company
 
  / / Midwest Securities Trust Company
 
  / / Philadelphia Depository Trust Company
 
                         SPECIAL DELIVERY INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
     To be completed ONLY if the check for the purchase price of Shares
purchased or certificates for Shares not tendered or not purchased are to be
mailed to someone other than the undersigned or to the undersigned at an address
other than that shown below the undersigned's signature(s).
 
Mail check and/or certificates to:
 
Name ___________________________________________________________________________
 
Address ________________________________________________________________________

        ________________________________________________________________________
                                                                      (Zip Code)
        ________________________________________________________________________
                        (Taxpayer Identification No.)
<PAGE>   6
 
                                  INSTRUCTIONS
 
             FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER
 
     1. Guarantee of Signatures. Except as otherwise provided below, signatures
on all Letters of Transmittal must be guaranteed by a firm that is a bank,
broker, dealer, credit union, savings association or other entity which is a
member in good standing of the Securities Transfer Agents Medallion Program or
by any other bank, broker, dealer, credit union, savings association or other
entity which is an "eligible guarantor institution," as such term is defined in
Rule 17Ad-15 under the Securities Exchange Act of 1934, as amended (each of the
foregoing constituting an "Eligible Institution"), unless the Shares tendered
thereby are tendered (i) by a registered holder of Shares who has not completed
either the box labeled "Special Payment Instructions" or the box labeled
"Special Delivery Instructions" on the Letter of Transmittal or (ii) for the
account of an Eligible Institution. See Instruction 5. If the certificates are
registered in the name of a person or persons other than the signer of this
Letter of Transmittal, or if payment is to be made or delivered to, or
certificates evidencing unpurchased Shares are to be issued or returned to, a
person other than the registered owner or owners, then the tendered certificates
must be endorsed or accompanied by duly executed stock powers, in either case
signed exactly as the name or names of the registered owner or owners appear on
the certificates or stock powers, with the signatures on the certificates or
stock powers guaranteed by an Eligible Institution as provided herein. See
Instruction 5.
 
     2. Delivery of Letter of Transmittal and Shares. This Letter of Transmittal
is to be used either if certificates are to be forwarded herewith or, unless an
Agent's Message (as defined in the Offer to Purchase) is utilized, if the
delivery of Shares is to be made by book-entry transfer pursuant to the
procedures set forth in Section 3 of the Offer to Purchase. Certificates for all
physically delivered Shares, or a confirmation of a book-entry transfer into the
Depositary's account at one of the Book-Entry Transfer Facilities of all Shares
delivered electronically, as well as a properly completed and duly executed
Letter of Transmittal (or a manually signed facsimile thereof) and any other
documents required by this Letter of Transmittal, or an Agent's Message in the
case of a book entry delivery, must be received by the Depositary at one of its
addresses set forth on the front page of this Letter of Transmittal by the
Expiration Date. Stockholders who cannot deliver their Shares and all other
required documents to the Depositary by the Expiration Date must tender their
Shares pursuant to the guaranteed delivery procedures set forth in Section 3 of
the Offer to Purchase. Pursuant to such procedures: (a) such tender must be made
by or through an Eligible Institution; (b) a properly completed and duly
executed Notice of Guaranteed Delivery, substantially in the form provided by
the Offeror, must be received by the Depositary prior to the Expiration Date;
and (c) the certificates for all tendered Shares, in proper form for tender, or
a confirmation of a book-entry transfer into the Depositary's account at one of
the Book-Entry Transfer Facilities of all Shares delivered electronically, as
well as a properly completed and duly executed Letter of Transmittal (or a
manually signed facsimile thereof), and any other documents required by this
Letter of Transmittal, must be received by the Depositary within three NYSE
trading days after the date of execution of such Notice of Guaranteed Delivery,
all as provided in Section 3 of the Offer to Purchase.
 
     The method of delivery of Shares, the Letter of Transmittal and all other
required documents, including delivery through a Book-Entry Transfer Facility,
is at the option and risk of the tendering stockholder. If delivery is by mail,
registered mail with return receipt requested, properly insured, is recommended.
 
     No alternative, conditional or contingent tenders will be accepted, and no
fractional Shares will be purchased. By executing this Letter of Transmittal (or
a manually signed facsimile thereof), the tendering stockholder waives any right
to receive any notice of the acceptance for payment of the Shares.
 
     3. Inadequate Space. If the space provided herein is inadequate, the
certificate numbers and/or the number of Shares should be listed on a separate
schedule attached hereto.
 
     4. Partial Tenders (not applicable to stockholders who tender by book-entry
transfer). If fewer than all the Shares represented by any certificate delivered
to the Depositary are to be tendered, fill in the number of Shares which are to
be tendered in the box entitled "Number of Shares Tendered." In such case, a new
certificate for the remainder of the Shares represented by the old certificate
will be sent to the person(s) signing this Letter of Transmittal, unless
otherwise provided in the appropriate box on this Letter of
<PAGE>   7
 
Transmittal, as promptly as practicable following the expiration or termination
of the Offer. All Shares represented by certificates delivered to the Depositary
will be deemed to have been tendered unless otherwise indicated.
 
     5. Signatures on Letter of Transmittal; Stock Powers and Endorsements. If
this Letter of Transmittal is signed by the registered holder(s) of the Shares
tendered hereby, the signature(s) must correspond with the name(s) as written on
the face of the certificates without alteration, enlargement or any change
whatsoever.
 
     If any of the Shares tendered hereby are held of record by two or more
persons, all such persons must sign this Letter of Transmittal.
 
     If any of the Shares tendered hereby are registered in different names on
different certificates, it will be necessary to complete, sign and submit as
many separate Letters of Transmittal as there are different registrations of
certificates.
 
     If this Letter of Transmittal is signed by the registered holder(s) of the
Shares tendered hereby, no endorsements of certificates or separate stock powers
are required unless payment of the purchase price is to be made, or Shares not
tendered or not purchased are to be returned, in the name of any person other
than the registered holder(s). Signatures on any such certificates or stock
powers must be guaranteed by an Eligible Institution.
 
     If this Letter of Transmittal is signed by a person other than the
registered holder(s) of the Shares tendered hereby, the certificate must be
endorsed or accompanied by, appropriate stock powers, in either case, signed
exactly as the name(s) of the registered holder(s) appear(s) on the certificates
for such Shares. Signature(s) on any such certificates or stock powers must be
guaranteed by an Eligible Institution.
 
     If this Letter of Transmittal or any certificate or stock power is signed
by a trustee, executor, administrator, guardian, attorney-in-fact, officer of a
corporation or other person acting in a fiduciary or representative capacity,
such person should so indicate when signing, and proper evidence satisfactory to
the Offeror of the authority of such person so to act must be submitted.
 
     6. Stock Transfer Taxes. The Offeror will pay any stock transfer taxes with
respect to the sale and transfer of any Shares to it or its order pursuant to
the Offer. If, however, payment of the purchase price is to be made to, or
Shares not tendered or not purchased are to be returned in the name of, any
person other than the registered holder(s), then the amount of any stock
transfer taxes (whether imposed on the registered holder(s), such other person
or otherwise) payable on account of the transfer to such person will be deducted
from the purchase price unless satisfactory evidence of the payment of such
taxes, or exemption therefrom, is submitted.
 
     Except as provided in this Instruction 6, it will not be necessary for
transfer tax stamps to be affixed to the certificates listed in this Letter of
Transmittal.
 
     7. Special Payment and Delivery Instruction. If the check for the purchase
price of any Shares purchased is to be issued, or any Shares not tendered or not
purchased are to be returned, in the name of a person other than the person(s)
signing this Letter of Transmittal or if the check or any certificates for
Shares not tendered or not purchased are to be mailed to someone other than the
person(s) signing this Letter of Transmittal or to the person(s) signing this
Letter of Transmittal at an address other than that shown above, the appropriate
boxes on this Letter of Transmittal should be completed. Stockholders tendering
Shares by book-entry transfer may request that Shares not purchased be credited
to such account at any of the Book-Entry Transfer Facilities as such stockholder
may designate under "Special Payment Instructions." If no such instructions are
given, any such Shares not purchased will be returned by crediting the account
at the Book-Entry Transfer Facilities designated above.
 
     8. Substitute Form W-9. The tendering stockholder is required to provide
the Depositary with such stockholder's correct TIN on Substitute Form W-9, which
is provided above, unless an exemption applies. Failure to provide the
information on the Substitute Form W-9 may subject the tendering stockholder to
a $50 penalty and to 31% federal income tax backup withholding on the payment of
the purchase price for the Shares.
<PAGE>   8
 
     9. Requests for Assistance or Additional Copies. Requests for assistance or
additional copies of the Offer to Purchase and this Letter of Transmittal may be
obtained from the Information Agent or the Dealer Manager at their respective
addresses or telephone numbers set forth below.
 
     IMPORTANT: THIS LETTER OF TRANSMITTAL OR A MANUALLY SIGNED FACSIMILE COPY
HEREOF (TOGETHER WITH CERTIFICATES OR CONFIRMATION OF BOOK-ENTRY TRANSFER AND
ALL OTHER REQUIRED DOCUMENTS) OR A NOTICE OF GUARANTEED DELIVERY MUST BE
RECEIVED BY THE DEPOSITARY ON OR PRIOR TO THE EXPIRATION DATE (AS DEFINED IN THE
OFFER TO PURCHASE).
 
                           IMPORTANT TAX INFORMATION
 
     Under federal income tax law, a stockholder whose tendered Shares are
accepted for payment is required to provide the Depositary with such
stockholder's correct TIN on the Substitute Form W-9. If such stockholder is an
individual, the TIN is such stockholder's social security number. If the
Depositary is not provided with the correct TIN, the stockholder may be subject
to a $50 penalty imposed by the Internal Revenue Service. In addition, payments
that are made to such stockholder with respect to Shares purchased pursuant to
the Offer may be subject to backup withholding.
 
     Certain stockholders (including, among others, all corporations and certain
foreign individuals) are not subject to these backup withholding and reporting
requirements. In order for a foreign individual to qualify as an exempt
recipient, that stockholder must submit a statement, signed under penalties of
perjury, attesting to that individual's exempt status. Such statements may be
obtained from the Depositary. All exempt recipients (including foreign persons
wishing to qualify as exempt recipients) should see the enclosed Guidelines for
Certification of Taxpayer Identification Number on Substitute Form W-9 for
additional instructions.
 
     If backup withholding applies, the Depositary is required to withhold 31%
of any payments made to the stockholder. Backup withholding is not an additional
tax. Rather, the tax liability of persons subject to backup withholding will be
reduced by the amount of tax withheld. If backup withholding results in an
overpayment of taxes, a refund may be obtained.
 
PURPOSE OF SUBSTITUTE FORM W-9
 
     To prevent backup federal income tax withholding on payments that are made
to a stockholder with respect to Shares purchased pursuant to the Offer, the
stockholder is required to notify the Depositary of his or her correct TIN by
completing the form certifying that the TIN provided on the Substitute Form W-9
is correct.
 
WHAT NUMBER TO GIVE THE DEPOSITARY
 
     The stockholder is required to give the Depositary the social security
number or employer identification number of the record owner of the Shares. If
the Shares are in more than one name or are not in the name of the actual owner,
consult the enclosed Guidelines for Certification of Taxpayer Identification
Number on Substitute Form W-9 for additional guidelines on which number to
report.
<PAGE>   9
 
                                   SIGN HERE
                      (Complete Substitute Form W-9 below)
 
________________________________________________________________________________
 
________________________________________________________________________________
                            Signature(s) of Owner(s)
 
________________________________________________________________________________
Name(s)
________________________________________________________________________________

Capacity (full title) __________________________________________________________
Address ________________________________________________________________________
 
________________________________________________________________________________
 
________________________________________________________________________________
                                                              (Include Zip Code)
 
________________________________________________________________________________
Area Code and Telephone Number _________________________________________________
Taxpayer Identification Number _________________________________________________
Dated:____________________________________________________________________, 1995
 
     (Must be signed by registered holder(s) exactly as name(s) appear(s) on
stock certificate(s) or on a security position listing or by the person(s)
authorized to become registered holder(s) by certificates and documents
transmitted herewith. If signature is by a trustee, executor, administrator,
guardian, attorney-in-fact, agent, officer of a corporation or other person
acting in a fiduciary or representative capacity, please set forth full title
and see Instruction 5).
 
                           GUARANTEE OF SIGNATURE(S)
                           (See Instructions 1 and 5)
 
FOR USE BY FINANCIAL INSTITUTIONS ONLY. PLACE MEDALLION GUARANTEE IN SPACE
BELOW.
Authorized signature(s) ________________________________________________________
Name ___________________________________________________________________________
Name of Firm____________________________________________________________________
Address_________________________________________________________________________
 
________________________________________________________________________________
                                                              (Include Zip Code)
Area Code and Telephone Number _________________________________________________
Dated: ___________________________________________________________________, 1995


<PAGE>   10
 
<TABLE>
<S>                               <C>                                                      <C>
 -------------------------------------------------------------------------------------------------------------------------------
                                       PAYOR'S NAME: CHEMICAL MELLON SHAREHOLDER SERVICES
 -------------------------------------------------------------------------------------------------------------------------------
 SUBSTITUTE                        PART I -- PLEASE PROVIDE YOUR TIN IN THE BOX AT THE     PART III -- Social Security Number or
 FORM W-9                          RIGHT AND CERTIFY BY SIGNING AND DATING BELOW.             Employer Identification Number
                                                                                            ----------------------------------
                                                                                           (If awaiting TIN write "Applied For")
                                  ----------------------------------------------------------------------------------------------
 
                                   PART II -- For Payees exempt from backup withholding, see the enclosed Guidelines for
                                   Certification of Taxpayer Identification Number on Substitute Form W-9 and complete as
                                   instructed therein.
 DEPARTMENT OF THE TREASURY,       Certification -- Under penalties of perjury, I certify that:
 INTERNAL REVENUE SERVICE          (1) The number shown on this form is my correct TIN (or I am waiting for a number to be
                                   issued to me); and
 PAYOR'S REQUEST FOR TAXPAYER      (2) I am not subject to backup withholding either because I have not been notified by the
 IDENTIFICATION NUMBER ("TIN")     Internal Revenue Service (IRS) that I am subject to backup withholding as a result of a
                                       failure to report all interest or dividends, or the IRS has notified me that I am no
                                       longer subject to backup withholding.
                                   CERTIFICATION INSTRUCTIONS -- You must cross out item (2) above if you have been notified by
                                   the IRS that you are subject to backup withholding because of underreporting interest or
                                   dividends on your tax return. However, if after being notified by the IRS that you were
                                   subject to backup withholding, you received another notification from the IRS that you were
                                   no longer subject to backup withholding, do not cross out item (2). (Also see the
                                   instructions in the enclosed Guidelines.)
                                  ----------------------------------------------------------------------------------------------
                                    SIGNATURE:                                                         DATE:
------------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
NOTE: FAILURE TO COMPLETE AND RETURN THIS SUBSTITUTE FORM W-9 MAY RESULT IN
      BACKUP WITHHOLDING OF 31% OF ANY PAYMENTS MADE TO YOU PURSUANT TO THE
      OFFER. PLEASE REVIEW THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER
      IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.
 
        YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU ARE AWAITING YOUR
        TIN.
 
<TABLE>
<S>                                                                               <C>
 ------------------------------------------------------------------------------------------------------
                        CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
     I certify under penalties of perjury that a TIN has not been issued to me, and either (1) I have
  mailed or delivered an application to receive a TIN to the appropriate IRS Center or Social Security
  Administration Office or (2) I intend to mail or deliver an application in the near future. I
  understand that if I do not provide a TIN by the time of payment, 31% of all payments pursuant to the
  Offer made to me thereafter will be withheld until I provide a number.
  Signature:                                                                       Date:
-------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   11
 
                    The Information Agent for the Offer is:
 
                             D.F. KING & CO., INC.
 
                                77 Water Street
                            New York, New York 10005
                 Banks and Brokers Call Collect: (212) 269-5550
                   All Others Call Toll-Free: (800) 755-3107
 
                      The Dealer Manager for the Offer is
 
                               SMITH BARNEY INC.
 
                              388 Greenwich Street
                            New York, New York 10013
                                 (212) 816-7620
 
August 16, 1995

<PAGE>   1
 
                           OFFER TO PURCHASE FOR CASH
 
                     ALL OUTSTANDING SHARES OF COMMON STOCK
 
                                       OF
 
                         EMPHESYS FINANCIAL GROUP, INC.
                                       AT
 
                              $37.50 NET PER SHARE
 
                                       BY
 
                                   HEW, INC.
                          A WHOLLY OWNED SUBSIDIARY OF
 
                                  HUMANA INC.
 
                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON FRIDAY, SEPTEMBER 15, 1995,
                          UNLESS THE OFFER IS EXTENDED
 
                                                                 August 16, 1995
 
To Brokers, Dealers, Commercial Banks,
  Trust Companies and Other Nominees:
 
     We have been appointed by HEW, Inc., a Delaware corporation (the "Offeror")
and a wholly owned subsidiary of Humana Inc., a Delaware corporation (the
"Parent"), to act as Dealer Manager in connection with the Offeror's offer to
purchase all outstanding shares of common stock, $0.01 par value per share (the
"Shares"), of EMPHESYS Financial Group, Inc., a Delaware corporation (the
"Company"), at a purchase price of $37.50 per Share, net to the seller in cash,
without interest, upon the terms and subject to the conditions set forth in the
Offer to Purchase, dated August 16, 1995 (the "Offer to Purchase"), and in the
related Letter of Transmittal (which together constitute the "Offer") enclosed
herewith. The Offer is being made in connection with the Agreement and Plan of
Merger, dated as of August 9, 1995, among the Parent, the Offeror and the
Company (the "Merger Agreement"). Holders of Shares whose certificates for such
Shares (the "Certificates") are not immediately available or who cannot deliver
their Certificates and all other required documents to the Depositary or
complete the procedures for book-entry transfer prior to the Expiration Date (as
defined in Section 1 of the Offer to Purchase) must tender their Shares
according to the guaranteed delivery procedures set forth in Section 3 of the
Offer to Purchase.
 
     Please furnish copies of the enclosed materials to those of your clients
for whose accounts you hold Shares in your name or in the name of your nominee.
 
     Enclosed herewith for your information and forwarding to your clients are
copies of the following documents:
 
          1. The Offer to Purchase, dated August 16, 1995.
 
          2. The Letter of Transmittal to tender Shares for your use and for the
     information of your clients. Facsimile copies of the Letter of Transmittal
     (with manual signatures) may be used to tender Shares.
<PAGE>   2
 
          3. A letter to stockholders of the Company from William J. Lawson, the
     Chairman of the Company, together with a Solicitation/Recommendation
     Statement on Schedule 14D-9 filed with the Securities and Exchange
     Commission by the Company and mailed to the stockholders of the Company.
 
          4. The Notice of Guaranteed Delivery for Shares to be used to accept
     the Offer if neither of the two procedures for tendering Shares set forth
     in the Offer to Purchase can be completed on a timely basis.
 
          5. A printed form of letter which may be sent to your clients for
     whose accounts you hold Shares registered in your name, with space provided
     for obtaining such clients' instructions with regard to the Offer.
 
          6. Guidelines of the Internal Revenue Service for Certification of
     Taxpayer Identification Number on Substitute Form W-9.
 
          7. A return envelope addressed to the Depositary.
 
     YOUR PROMPT ACTION IS REQUESTED. WE URGE YOU TO CONTACT YOUR CLIENTS AS
PROMPTLY AS POSSIBLE. PLEASE NOTE THAT THE OFFER AND WITHDRAWAL RIGHTS WILL
EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON FRIDAY, SEPTEMBER 15, 1995,
UNLESS THE OFFER IS EXTENDED.
 
     Please note the following:
 
          1. The tender price is $37.50 per Share, net to the seller in cash
     without interest.
 
          2. The Offer is being made for all of the outstanding Shares.
 
          3. The Offer and withdrawal rights will expire at 12:00 Midnight, New
     York City time, on Friday, September 15, 1995, unless the Offer is
     extended.
 
          4. The Offer is conditioned upon, among other things, (i) there being
     validly tendered prior to the expiration of the Offer and not withdrawn a
     number of Shares which would constitute at least a majority of the
     outstanding Shares on a fully diluted basis and (ii) the Office of the
     Commissioner of Insurance of the State of Wisconsin and the Department of
     Corporations of California having issued final orders approving, exempting
     or otherwise authorizing consummation of the Merger contemplated by the
     Merger Agreement and all other transactions contemplated by the Merger
     Agreement as may require such authorization (provided any such order does
     not impose terms or conditions that materially and adversely affect the
     economic benefits of the transactions contemplated by the Merger
     Agreement). The Offer is also subject to the other terms and conditions
     contained in the Offer to Purchase. The Merger Agreement and the Offer may
     be terminated by the Offeror and the Parent if, among other things, the
     Company does not attain certain percentages of specified financial and
     operational targets.
 
          5. Tendering stockholders will not be obligated to pay brokerage fees
     or commissions or, except as set forth in Instruction 6 of the Letter of
     Transmittal, stock transfer taxes on the transfer of Shares pursuant to the
     Offer.
 
     In order to take advantage of the Offer, (i) a duly executed and properly
completed Letter of Transmittal (or a manually signed facsimile thereof) and any
required signature guarantees or, in the case of a book-entry transfer, an
Agent's Message (as defined in the Offer to Purchase) or other required
documents should be sent to the Depositary and (ii) Certificates representing
the tendered Shares or a timely Book-Entry Confirmation (as defined in the Offer
to Purchase) should be delivered to the Depositary in accordance with the
instructions set forth in the Offer.
 
     If holders of Shares wish to tender, but it is impracticable for them to
forward their Certificates or other required documents or complete the
procedures for book-entry transfer prior to the Expiration Date, a tender may be
effected by following the guaranteed delivery procedures specified in Section 3
of the Offer to Purchase.
 
     Neither the Offeror, the Parent nor any officer, director, stockholder,
agent or other representative of the Offeror will pay any fees or commissions to
any broker, dealer or other person (other than the Dealer
<PAGE>   3
 
Manager, the Depositary and the Information Agent as described in the Offer to
Purchase) for soliciting tenders of Shares pursuant to the Offer. The Offeror
will, however, upon request, reimburse you for customary mailing and handling
expenses incurred by you in forwarding any of the enclosed materials to your
clients. The Offeror will pay or cause to be paid any transfer taxes payable on
the transfer of Shares to it, except as otherwise provided in Instruction 6 of
the Letter of Transmittal.
 
     Any inquiries you may have with respect to the Offer should be addressed to
D.F. King & Co., Inc., the Information Agent for the Offer, 77 Water Street, New
York, New York 10005, (800) 755-3107 or Smith Barney Inc., the Dealer Manager
for the Offer, at 388 Greenwich Street, New York, New York 10013 (212) 816-7620.
 
     Requests for copies of the enclosed materials may be directed to the
Information Agent at the above address and telephone number.
 
                                            Very truly yours,
 
                                            SMITH BARNEY INC.
                                            388 Greenwich St.
                                            New York, NY 10013
 
     NOTHING CONTAINED HEREIN OR IN THE ENCLOSED DOCUMENTS SHALL CONSTITUTE YOU
OR ANY OTHER PERSON THE AGENT OF THE PARENT, THE OFFEROR, THE DEPOSITARY, THE
INFORMATION AGENT, THE DEALER MANAGER OR ANY AFFILIATE OF ANY OF THEM, OR
AUTHORIZE YOU OR ANY OTHER PERSON TO MAKE ANY STATEMENT OR USE ANY DOCUMENT ON
BEHALF OF ANY OF THEM IN CONNECTION WITH THE OFFER OTHER THAN THE ENCLOSED
DOCUMENTS AND THE STATEMENTS CONTAINED THEREIN.

<PAGE>   1
 
                           OFFER TO PURCHASE FOR CASH
 
                     ALL OUTSTANDING SHARES OF COMMON STOCK
 
                                       OF
 
                         EMPHESYS FINANCIAL GROUP, INC.
                                       AT
 
                              $37.50 NET PER SHARE
 
                                       BY
 
                                   HEW, INC.
                          A WHOLLY OWNED SUBSIDIARY OF
 
                                  HUMANA INC.
 
                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON FRIDAY, SEPTEMBER 15, 1995,
                         UNLESS THE OFFER IS EXTENDED.
 
                                                                 August 16, 1995
 
To Our Clients:
 
     Enclosed for your consideration are the Offer to Purchase, dated August 16,
1995 (the "Offer to Purchase"), and the related Letter of Transmittal (which
together constitute the "Offer") relating to an offer by HEW, Inc., a Delaware
corporation (the "Offeror") and a wholly owned subsidiary of Humana Inc., a
Delaware corporation (the "Parent"), to purchase all outstanding shares of
common stock, par value $0.01 per share (the "Shares") of EMPHESYS Financial
Group, Inc., a Delaware corporation (the "Company"), at a purchase price of
$37.50 per Share, net to the seller in cash, without interest, upon the terms
and subject to the conditions set forth in the Offer. The Offer is being made in
connection with the Agreement and Plan of Merger, dated as of August 9, 1995,
among the Parent, the Offeror and the Company (the "Merger Agreement"). This
material is being forwarded to you as the beneficial owner of Shares carried by
us in your account but not registered in your name.
 
     A TENDER OF SUCH SHARES CAN BE MADE ONLY BY US AS THE HOLDER OF RECORD AND
PURSUANT TO YOUR INSTRUCTIONS. THE LETTER OF TRANSMITTAL IS FURNISHED TO YOU FOR
YOUR INFORMATION ONLY AND CANNOT BE USED BY YOU TO TENDER SHARES HELD BY US FOR
YOUR ACCOUNT.
 
     Accordingly, we request instructions as to whether you wish to tender any
or all of the Shares held by us for your account, upon the terms and conditions
set forth in the Offer.
 
     Please note the following:
 
          1. The tender price is $37.50 per Share, net to you in cash without
     interest.
 
          2. The Offer is being made for all of the outstanding Shares.
 
          3. The Offer and withdrawal rights will expire at 12:00 Midnight, New
     York City time, on Friday, September 15, 1995, unless the Offer is
     extended.
<PAGE>   2
 
          4. The Offer is conditioned upon, among other things, (i) there being
     validly tendered prior to the expiration of the Offer and not withdrawn a
     number of Shares which would constitute at least a majority of the
     outstanding Shares on a fully diluted basis and (ii) the Office of the
     Commissioner of Insurance of the State of Wisconsin and the Department of
     Corporations of California having issued final orders approving, exempting
     or otherwise authorizing consummation of the merger contemplated by the
     Merger Agreement and all other transactions contemplated by the Merger
     Agreement as may require such authorization (provided any such order does
     not impose terms or conditions that materially and adversely affect the
     economic benefits of the transactions contemplated by the Merger
     Agreement). The Offer is also subject to the other terms and conditions
     contained in the Offer to Purchase. The Merger Agreement and the Offer may
     be terminated by the Offeror and the Parent if, among other things, the
     Company does not attain certain percentages of specified financial and
     operational targets.
 
          5. Tendering stockholders will not be obligated to pay brokerage fees
     or commissions or, except as set forth in Instruction 6 of the Letter of
     Transmittal, stock transfer taxes on the transfer of Shares pursuant to the
     Offer.
 
     If you wish to have us tender any or all of your Shares, please so instruct
us by completing, executing, detaching and returning to us the instruction form
contained in this letter. An envelope to return your instruction to us is
enclosed. If you authorize tender of your Shares, all such Shares will be
tendered unless otherwise indicated in such instruction form. PLEASE FORWARD
YOUR INSTRUCTIONS TO US AS SOON AS POSSIBLE TO ALLOW US AMPLE TIME TO TENDER
YOUR SHARES ON YOUR BEHALF PRIOR TO THE EXPIRATION OF THE OFFER.
 
     The Offer is made solely by the Offer to Purchase and the related Letter of
Transmittal and any supplements or amendments thereto. The Offer is not being
made to, nor will tenders be accepted from or on behalf of, holders of Shares
residing in any jurisdiction in which the making of the Offer or acceptance
thereof would not be in compliance with the securities laws of such
jurisdiction. In any jurisdiction where the securities, blue sky, or other laws
require the Offer to be made by a licensed broker or dealer, the Offer will be
deemed to be made on behalf of the Offeror by Smith Barney Inc. or by one or
more registered brokers or dealers licensed under the laws of such jurisdiction.
<PAGE>   3
 
                          INSTRUCTIONS WITH RESPECT TO
                         THE OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
                                       OF
                         EMPHESYS FINANCIAL GROUP, INC.
 
     The undersigned acknowledge(s) receipt of your letter and the enclosed
Offer to Purchase dated August 16, 1995 (the "Offer to Purchase"), and the
related Letter of Transmittal (which together constitute the "Offer") in
connection with the offer by HEW, Inc., a Delaware corporation (the "Offeror")
and a wholly owned subsidiary of Humana Inc., a Delaware corporation, to
purchase all outstanding shares of common stock, par value $.01 per share
("Shares"), of EMPHESYS Financial Group, Inc., a Delaware corporation.
 
     This will instruct you to tender to the Offeror the number of Shares
indicated below (or if no number is indicated below, all Shares) which are held
by you for the account of the undersigned, upon the terms and subject to the
conditions set forth in the Offer.
 
<TABLE>
<S>                                              <C>
                                                                  SIGN HERE
--------------------------------------------
 
 Number of Shares to be Tendered:*
  -----------
--------------------------------------------
                                                 --------------------------------------------
 
                                                 --------------------------------------------
                                                                 Signature(s)
Account Number:                                  --------------------------------------------
 
Date:                                            --------------------------------------------
                                                               (Print Name(s))
 
                                                 --------------------------------------------
 
                                                 --------------------------------------------
                                                             (Print Address(es))
 
                                                 --------------------------------------------
                                                     (Area Code and Telephone Number(s))
 
                                                 --------------------------------------------
                                                         (Taxpayer Identification or
                                                          Social Security Number(s))
</TABLE>
 
---------------
* Unless otherwise indicated, it will be assumed that all Shares held by us for
your account are to be tendered.

<PAGE>   1
 
                           OFFER TO PURCHASE FOR CASH
 
                     ALL OUTSTANDING SHARES OF COMMON STOCK
 
                                       OF
 
                         EMPHESYS FINANCIAL GROUP, INC.

                                       AT
 
                              $37.50 NET PER SHARE
 
                                       BY
 
                                   HEW, INC.

                          A WHOLLY OWNED SUBSIDIARY OF
 
                                  HUMANA INC.
 
                 THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT
       12:00 MIDNIGHT, NEW YORK CITY TIME, ON FRIDAY, SEPTEMBER 15, 1995,
                         UNLESS THE OFFER IS EXTENDED.
 
                                                                 August 16, 1995
 
To Participants in the Automatic Dividend Reinvestment and Common Stock Purchase
Plan of EMPHESYS Financial Group, Inc.:
 
     Enclosed for your consideration are the Offer to Purchase, dated August 16,
1995 (the "Offer to Purchase"), and the related Letter of Transmittal (which
together constitute the "Offer") relating to an offer by HEW, Inc., a Delaware
corporation (the "Offeror") and a wholly owned subsidiary of Humana Inc., a
Delaware corporation (the "Parent"), to purchase all outstanding shares of
common stock, par value $0.01 per share (the "Shares") of EMPHESYS Financial
Group, Inc., a Delaware corporation (the "Company"), at a purchase price of
$37.50 per Share, net to the seller in cash, without interest, upon the terms
and subject to the conditions set forth in the Offer. The Offer is being made in
connection with the Agreement and Plan of Merger, dated as of August 9, 1995,
among the Parent, the Offeror and the Company (the "Merger Agreement").
 
     OUR NOMINEE IS THE HOLDER OF RECORD OF SHARES HELD FOR YOUR ACCOUNT AS A
PARTICIPANT IN THE COMPANY'S AUTOMATIC DIVIDEND REINVESTMENT AND COMMON STOCK
PURCHASE PLAN (THE "PLAN"). A TENDER OF SUCH SHARES CAN BE MADE ONLY BY US
THROUGH OUR NOMINEE AS THE HOLDER OF RECORD AND PURSUANT TO YOUR INSTRUCTIONS.
THE LETTER OF TRANSMITTAL IS FURNISHED TO YOU FOR YOUR INFORMATION ONLY AND
CANNOT BE USED BY YOU TO TENDER SHARES HELD IN YOUR PLAN ACCOUNT.
 
     Accordingly, we request instructions as to whether you wish to have us
instruct our nominee to tender any or all of the Shares held in your Plan
account, upon the terms and conditions set forth in the Offer.
 
     Please note the following:
 
          1. The tender price is $37.50 per Share, net to you in cash without
     interest.
 
          2. The Offer is being made for all of the outstanding Shares.
 
          3. The Offer and withdrawal rights will expire at 12:00 Midnight, New
     York City time, on Friday, September 15, 1995, unless the Offer is
     extended.
<PAGE>   2
 
          4. The Offer is conditioned upon, among other things, (i) there being
     validly tendered prior to the expiration of the Offer and not withdrawn a
     number of Shares which would constitute at least a majority of the
     outstanding Shares on a fully diluted basis and (ii) the Office of the
     Commissioner of Insurance of the State of Wisconsin and the Department of
     Corporations of California having issued final orders approving, exempting
     or otherwise authorizing consummation of the merger contemplated by the
     Merger Agreement and all other transactions contemplated by the Merger
     Agreement as may require such authorization (provided any such order does
     not impose terms or conditions that materially and adversely affect the
     economic benefits of the transactions contemplated by the Merger
     Agreement). The Offer is also subject to the other terms and conditions
     contained in the Offer to Purchase. The Merger Agreement and the Offer may
     be terminated by the Offeror and the Parent if, among other things, the
     Company does not attain certain percentages of specified financial and
     operational targets.
 
          5. Tendering stockholders will not be obligated to pay brokerage fees
     or commissions or, except as set forth in Instruction 6 of the Letter of
     Transmittal, stock transfer taxes on the transfer of Shares pursuant to the
     Offer.
 
     If you wish to have us tender any or all of the Shares held in your Plan
account, please so instruct us by completing, executing, detaching and returning
to us the instruction form contained in this letter. An envelope to return your
instruction to us is enclosed. If you authorize tender of your Shares, all such
Shares will be tendered unless otherwise indicated in such instruction form.
PLEASE FORWARD YOUR INSTRUCTIONS TO US NO LATER THAN 5:00 P.M., WISCONSIN TIME,
ON SEPTEMBER 14, 1995, TO ALLOW US AMPLE TIME TO TENDER YOUR SHARES ON YOUR
BEHALF PRIOR TO THE EXPIRATION OF THE OFFER.
 
     The Offer is made solely by the Offer to Purchase and the related Letter of
Transmittal and any supplements or amendments thereto. The Offer is not being
made to, nor will tenders be accepted from or on behalf of, holders of Shares
residing in any jurisdiction in which the making of the Offer or acceptance
thereof would not be in compliance with the securities laws of such
jurisdiction. In any jurisdiction where the securities, blue sky, or other laws
require the Offer to be made by a licensed broker or dealer, the Offer will be
deemed to be made on behalf of the Offeror by Smith Barney Inc. or one or more
registered brokers or dealers licensed under the laws of such jurisdiction.
 
                                          Very truly yours,
 
                                          Firstar Trust Company
                                          as Agent
<PAGE>   3
 
<TABLE>
<S>                               <C>                                                      <C>
 -------------------------------------------------------------------------------------------------------------------------------
                                              PAYOR'S NAME: FIRSTAR TRUST COMPANY
 -------------------------------------------------------------------------------------------------------------------------------
 SUBSTITUTE                        PART I -- PLEASE PROVIDE YOUR TIN IN THE BOX AT THE     PART III -- Social Security Number or
 FORM W-9                          RIGHT AND CERTIFY BY SIGNING AND DATING BELOW.             Employer Identification Number
                                                                                            ----------------------------------
                                                                                           (If awaiting TIN write "Applied For")
                                  ----------------------------------------------------------------------------------------------
 
                                   PART II -- For Payees exempt from backup withholding, see the enclosed Guidelines for
                                   Certification of Taxpayer Identification Number on Substitute Form W-9 and complete as
                                   instructed therein.
 DEPARTMENT OF THE TREASURY,       Certification -- Under penalties of perjury, I certify that:
 INTERNAL REVENUE SERVICE          (1) The number shown on this form is my correct TIN (or I am waiting for a number to be
                                   issued to me); and
 PAYOR'S REQUEST FOR TAXPAYER      (2) I am not subject to backup withholding either because I have not been notified by the
 IDENTIFICATION NUMBER ("TIN")     Internal Revenue Service (IRS) that I am subject to backup withholding as a result of a
                                       failure to report all interest or dividends, or the IRS has notified me that I am no
                                       longer subject to backup withholding.
                                   CERTIFICATION INSTRUCTIONS -- You must cross out item (2) above if you have been notified by
                                   the IRS that you are subject to backup withholding because of underreporting interest or
                                   dividends on your tax return. However, if after being notified by the IRS that you were
                                   subject to backup withholding, you received another notification from the IRS that you were
                                   no longer subject to backup withholding, do not cross out item (2). (Also see the
                                   instructions in the enclosed Guidelines.)
                                  ----------------------------------------------------------------------------------------------
                                    SIGNATURE:                                                         DATE:
------------------------------------------------------------------------------------------------------------------------------
</TABLE>
 
NOTE: FAILURE TO COMPLETE AND RETURN THIS SUBSTITUTE FORM W-9 MAY RESULT IN
      BACKUP WITHHOLDING OF 31% OF ANY PAYMENTS MADE TO YOU PURSUANT TO THE
      OFFER. PLEASE REVIEW THE ENCLOSED GUIDELINES FOR CERTIFICATION OF TAXPAYER
      IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.
 
        YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU ARE AWAITING YOUR
        TIN.
 
<TABLE>
<S>                                                                               <C>
 ------------------------------------------------------------------------------------------------------
                        CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
     I certify under penalties of perjury that a TIN has not been issued to me, and either (1) I have
  mailed or delivered an application to receive a TIN to the appropriate IRS Center or Social Security
  Administration Office or (2) I intend to mail or deliver an application in the near future. I
  understand that if I do not provide a TIN by the time of payment, 31% of all payments pursuant to the
  Offer made to me thereafter will be withheld until I provide a number.
  Signature:                                                                       Date:
-------------------------------------------------------------------------------------------------------
</TABLE>
<PAGE>   4
 
                          INSTRUCTIONS WITH RESPECT TO
                         THE OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
                                       OF
 
                         EMPHESYS FINANCIAL GROUP, INC.
 
     The undersigned acknowledge(s) receipt of your letter and the enclosed
Offer to Purchase, dated August 16, 1995 (the "Offer to Purchase"), and the
Letter of Transmittal (such documents together constitute the "Offer"), in
connection with the offer by HEW, Inc., a Delaware corporation (the "Offeror")
and a wholly owned subsidiary of Humana Inc., a Delaware Corporation (the
"Parent"), to purchase all the shares of Common Stock, $0.01 par value per share
(the "Shares") of EMPHESYS Financial Group, Inc. (the "Company"). The
undersigned understand(s) that the Offer applies to Shares allocated to the
account of the undersigned in the Company's Automatic Dividend Reinvestment and
Common Stock Purchase Plan (the "Plan").
 
     This will instruct you, as Agent for the Plan, to instruct your nominee to
tender the number of Shares indicated below (or, if no number is indicated
below, all Shares that are held for the Plan account of the undersigned), upon
the terms and subject to the conditions set forth in the Offer.
 
<TABLE>
<CAPTION>
       NUMBER OF SHARES
       TO BE TENDERED:                              SIGN HERE
------------------------------    ---------------------------------------------
<S>                               <C>
 
------------------------------    ---------------------------------------------
           SHARES*
                                  ---------------------------------------------
           Account:                                                Signature(s)
 
 Dated:               , 1995      ---------------------------------------------
                                  ---------------------------------------------
                                                   Please type or print name(s)
 
                                  ---------------------------------------------
 
                                  ---------------------------------------------
                                                   Please type or print address
 
                                  ---------------------------------------------
                                                 Area Code and Telephone Number
 
                                  ---------------------------------------------
                                                     Taxpayer Identification or
                                                         Social Security Number
</TABLE>
 
---------------
* Unless otherwise indicated, it will be assumed that all Shares in your Plan
  account are to be tendered, including any additional Shares credited to your
  account through the Expiration Date (as defined in the Offer to Purchase).

<PAGE>   1
 
                         NOTICE OF GUARANTEED DELIVERY
                                      FOR
                        TENDER OF SHARES OF COMMON STOCK
                                       OF
                         EMPHESYS FINANCIAL GROUP, INC.
 
     This form, or one substantially equivalent hereto, must be used to accept
the Offer (as defined below) if certificates for shares of common stock, $0.01,
par value per share (the "Shares"), of EMPHESYS Financial Group, Inc., a
Delaware corporation (the "Company"), are not immediately available or if the
procedure for book-entry transfer cannot be completed on a timely basis or time
will not permit all required documents to reach the Depositary on or prior to
the Expiration Date (as defined in the Offer to Purchase). Such form may be
delivered by hand or facsimile transmission, or mail to the Depositary. See
Section 3 of the Offer to Purchase, dated August 16, 1995 (the "Offer to
Purchase").
 
                        THE DEPOSITARY FOR THE OFFER IS:
 
                      CHEMICAL MELLON SHAREHOLDER SERVICES
 
<TABLE>
<S>                             <C>                             <C>
By Hand:                        By Mail:                        By Overnight Courier:
Chemical Mellon Shareholder     Chemical Mellon Shareholder     Chemical Mellon Shareholder
  Services                      Services                        Services
Reorganization Department       Reorganization Department       Reorganization Department
120 Broadway - 13th Floor       P.O. Box 817                    85 Challenger Road
New York, N.Y. 10271            Midtown Station                 Overpeck Centre
                                New York, N.Y. 10018            Ridgefield Park, N.J. 07660
</TABLE>
 
                      Facsimile for Eligible Institutions:
                                 (201) 296-4293
 
                              To confirm fax only:
                                 (201) 296-4209
                             ---------------------
 
     DELIVERY OF THIS NOTICE OF GUARANTEED DELIVERY TO AN ADDRESS, OR
TRANSMISSION OF INSTRUMENTS VIA A FACSIMILE, OTHER THAN AS SET FORTH ABOVE, DOES
NOT CONSTITUTE A VALID DELIVERY.
 
     This Notice of Guaranteed Delivery is not to be used to guarantee
signatures. If a signature on a Letter of Transmittal is required to be
guaranteed by an "Eligible Institution" under the instructions thereto, such
signature guarantee must appear in the applicable space provided in the
signature box on the Letter of Transmittal.
 
     The Eligible Institution that completes this form must communicate the
guarantee to the Depositary and must deliver the Letter of Transmittal or an
Agent's Message and certificates for Shares to the Depositary within the time
period shown herein. Failure to do so could result in a financial loss to such
Eligible Institution.
              THE GUARANTEE ON THE REVERSE SIDE MUST BE COMPLETED.
<PAGE>   2
 
     Ladies and Gentlemen:
 
     The undersigned hereby tenders to HEW, Inc., a Delaware corporation, upon
the terms and subject to the conditions set forth in the Offer to Purchase, and
the related Letter of Transmittal (which together constitute the "Offer"),
receipt of which is hereby acknowledged, Shares of the Company, pursuant to the
guaranteed delivery procedure set forth in Section 3 of the Offer to Purchase.
 
<TABLE>
<S>                                                  <C>
Number of Shares:                                    SIGN HERE
Certificate No(s) (if available):                    Name(s):
                                                                      (Please Print)
If Securities will be tendered by
book-entry transfer:                                 Address:
Name of Tendering Institutions                       (Zip Code)
                                                     Area Code and Telephone No:
Account No.:
  at
/ / The Depository Trust Company
/ / Midwest Securities Trust Company                 Signature(s):
/ / Philadelphia Depository Trust Company
</TABLE>
 
                                   GUARANTEE
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)
 
     The undersigned, a bank, broker, dealer, credit union, savings association
or other entity which is a member in good standing of the Securities Transfer
Agents Medallion Program or a bank, broker, dealer, credit union, savings
association or other entity which is an "eligible guarantor institution," as
such term is defined in Rule 17Ad-15 under the Securities Exchange Act of 1934,
as amended, guarantees the delivery to the Depositary of the Shares tendered
hereby, together with a properly completed and duly executed Letter of
Transmittal (or manually signed facsimile(s) thereof) and any other required
documents, or an Agent's Message (as defined in the Offer to Purchase) in the
case of a book-entry delivery of Shares, all within three New York Stock
Exchange trading days of the date hereof.
 
Name of Firm:
 
                             (Authorized Signature)
Address:
Title:
 
Name:
                                (Please Print or Type)
 
Area Code and Telephone No.:
 
DO NOT SEND CERTIFICATES FOR SHARES WITH THIS FORM --
 
CERTIFICATES SHOULD BE SENT WITH LETTER OF TRANSMITTAL
 
Dated:                                         , 1995

<PAGE>   1
 
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
 
GUIDELINES FOR DETERMINING THE PROPER IDENTIFICATION NUMBER TO GIVE THE
PAYOR -- Social Security numbers have nine digits separated by two hyphens:
i.e., 000-00-0000. Employer identification numbers have nine digits separated by
only one hyphen: i.e., 00-0000000. The table below will help determine the
number to give the Payor.
<TABLE>
<CAPTION>
----------------------------------------------------------
<S>   <C>                        <C>
                                 GIVE THE
      FOR THIS TYPE OF ACCOUNT:  SOCIAL SECURITY
                                 NUMBER OF--
----------------------------------------------------------
 1.   An individual's account    The individual
 
 2.   Two or more individuals    The actual owner of the
      (joint account)            account or, if combined
                                 funds, the first
                                 individual on the
                                 account(1)
 
 3.   Husband and wife (joint    The actual owner of the
      account)                   account or, if joint
                                 funds, the first
                                 individual on the
                                 account(1)
 
 4.   Custodian account of a     The minor(2)
      minor (Uniform Gift to
      Minors Act)
 
 5.   Adult and minor (joint     The adult, or if the
      account)                   minor is the only
                                 contributor, the minor(1)
 
 6.   Account in the name of     The ward, minor, or
      guardian or committee for  incompetent person(3)
      a designated ward, minor,
      or incompetent person
 
 7.   a. The usual revocable     The grantor-trustee(1)
         savings trust account
         (grantor is also
         trustee)
 
      b. So-called trust         The actual owner(4)
      account that is not a
         legal or valid trust
         under State law
 
<CAPTION>
----------------------------------------------------------
<S>   <C>                        <C>
                                 GIVE THE EMPLOYER
      FOR THIS TYPE OF ACCOUNT:  IDENTIFICATION
                                 NUMBER OF--
----------------------------------------------------------
 8.   Sole proprietorship        The owner(4)
      account
 
 9.   A valid trust, estate, or  Legal entity (Do not
      pension trust              furnish the identifying
                                 number of the personal
                                 representative or trustee
                                 unless the legal entity
                                 itself is not designated
                                 in the account title.)(5)
 
10.   Corporate account          The Corporation
 
11.   Religious, charitable, or  The organization
      educational organization
      account
 
12.   Partnership account held   The partnership
      in the name of the
      business
 
13.   Association, club or       The organization
      other tax-exempt
      organization
 
14.   A broker or registered     The broker or nominee
      nominee
 
15.   Account with the           The public entity
      Department of Agriculture
      in the name of a public
      entity (such as a State
      or local governmental
      school district or
      prison) that receives
      agricultural program
      payments
</TABLE>
 
---------------------------------------------------------------
 
(1) List first and circle the name of the person whose number you furnish.
 
(2) Circle the minor's name and furnish the minor's social security number.
 
(3) Circle the ward's, minor's or incompetent person's name and furnish such
    person's social security number.
 
(4) Show the name of the owner.
 
(5) List first and circle the name of the legal trust, estate or pension trust.
 
NOTE: If no name is circled when there is more than one name, the number will be
      considered to be that of the first name listed.
<PAGE>   2
 
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
 
                                     PAGE 2
 
OBTAINING A NUMBER
 
If you don't have a taxpayer identification number or you don't know your
number, obtain Form SS-5, Application for a Social Security Number Card, or Form
SS-4, Application for Employer Identification Number, at the local office of the
Social Security Administration or the Internal Revenue Service and apply for a
number.
PAYEES EXEMPT FROM BACKUP WITHHOLDING
 
Payees specifically exempted from backup withholding on interest, dividends, and
broker transactions payments include the following:
 
    - A corporation.
 
    - A financial institution.
 
    - An organization exempt from tax under section 501(a), or an individual
      retirement plan, or a custodial account under Section 403(b)(7).
 
    - The United States or any agency or instrumentality thereof.
 
    - A State, the District of Columbia, a possession of the United States, or
      any political subdivision or instrumentality thereof.
 
    - A foreign government, a political subdivision of a foreign government, or
      any agency or instrumentality thereof.
 
    - An international organization or any agency, or instrumentality thereof.
 
    - A registered dealer in securities or commodities registered in the U.S. or
      a possession of the U.S.
 
    - A real estate investment trust.
 
    - A common trust fund operated by a bank under section 584(a).
 
    - An entity registered at all times under the Investment Company Act of
      1940.
 
    - A foreign central bank of issue.
 
Payments of dividends and patronage dividends not generally subject to backup
withholding include the following:
 
    - Payments to nonresident aliens subject to withholding under section 1441.
 
    - Payments to partnerships not engaged in a trade or business in the U.S.
      and which have at least one nonresident partner.
 
    - Payments of patronage dividends where the amount received is not paid in
      money.
 
    - Payments made by certain foreign organizations.
 
    - Payments made to a nominee.
 
Payments to interest not generally subject to backup withholding include the
following:
 
    - Payments of interest on obligations issued by individuals.
 
    NOTE:  You may be subject to backup withholding if this interest is $600 or
more and is paid in the course of the payer's trade or business and you have not
provided your correct taxpayer identification number to the payer.
 
    - Payments of tax-exempt interest (including exempt-interest dividends under
      section 852).
 
    - Payments described in section 6049(b)(5) to nonresident aliens.
 
    - Payments on tax-free covenants bonds under section 1451.
 
    - Payments made by certain foreign organizations.
 
    - Payments made to a nominee.
 
Exempt payees described above should file Form W-9 to avoid possible erroneous
backup withholding. FILE THIS FORM WITH THE PAYER, FURNISH YOUR TAXPAYER
IDENTIFICATION NUMBER, WRITE "EXEMPT" ON THE FACE OF THE FORM, AND RETURN IT TO
THE PAYER. IF THE PAYMENTS ARE INTEREST, DIVIDENDS, OR PATRONAGE DIVIDENDS, ALSO
SIGN AND DATE THE FORM.
 
    Certain payments other than interest, dividends, and patronage dividends
that are not subject to information reporting are also not subject to backup
withholding. For details, see the regulations under sections 6041, 6041A(a),
6045, and 6050A.
 
PRIVACY ACT NOTICE.--Section 6109 requires most recipients of dividend,
interest, or other payments to give taxpayer identification numbers to payers
who must report the payments to IRS. IRS uses the numbers for identification
purposes. Payers must be given the numbers whether or not recipients are
required to file tax returns. Beginning January 1, 1993, payers must generally
withhold 31% of taxable interest, dividend, and certain other payments to a
payee who does not furnish a taxpayer identification number to a payer. Certain
penalties may also apply.
 
PENALTIES
 
(1) PENALTY FOR FAILURE TO FURNISH TAXPAYER IDENTIFICATION NUMBER.--If you fail
to furnish your taxpayer identification number to a payer, you are subject to a
penalty of $50 for each such failure unless your failure is due to reasonable
cause and not to willful neglect.
 
(2) CIVIL PENALTY FOR FALSE INFORMATION WITH RESPECT TO WITHHOLDING.--If you
make a false statement with no reasonable basis which results in no imposition
of backup withholding, you are subject to a penalty of $500.
 
(3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION.--Falsifying certifications or
affirmations may subject you to criminal penalties including fines and/or
imprisonment.
 
                  FOR ADDITIONAL INFORMATION CONTACT YOUR TAX
                  CONSULTANT OR THE INTERNAL REVENUE SERVICE.

<PAGE>   1
This announcement is neither an offer to purchase nor a solicitation of an offer
  to sell these securities. The Offer is made only by the Offer to Purchase and
the related Letter of Transmittal and is not being made to (nor will tenders be
 accepted from) holders of Shares in any jurisdiction in which the Offer or the
 acceptance thereof would not be in compliance with the securities laws of such
jurisdiction. In those jurisdictions where securities laws require the Offer to
be made by a licensed broker or dealer, the Offer shall be deemed to be made on
behalf of the Offeror by Smith Barney Inc. or one or more registered brokers or
              dealers licensed under the laws of such jurisdiction.

                      Notice of Offer to Purchase for Cash
                     All Outstanding Shares of Common Stock
                                       of
                         EMPHESYS Financial Group, Inc.
                               at $37.50 per Share
                                       by
                                    HEW, Inc.
                          a wholly owned subsidiary of
                                   Humana Inc.

      HEW, Inc., a Delaware corporation (the "Offeror") and a wholly owned
subsidiary of Humana Inc., a Delaware corporation (the "Parent"), hereby offers
to purchase all of the shares of common stock, par value $0.01 per share (the
"Shares"), of EMPHESYS Financial Group, Inc., a Delaware corporation (the
"Company"), for $37.50 per Share, net to the seller in cash without interest,
upon the terms and subject to the conditions set forth in the Offer to Purchase,
dated August 16, 1995 (the "Offer to Purchase"), and in the related Letter of
Transmittal (which together constitute the "Offer").

  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
       TIME, ON FRIDAY, SEPTEMBER 15, 1995, UNLESS THE OFFER IS EXTENDED.

The Offer is being made pursuant to an Agreement and Plan of Merger dated as of
August 9, 1995 (the "Merger Agreement"), among the Parent, the Offeror, and the
Company. The Merger Agreement provides that, among other things, as soon as
practicable after the purchase of Shares pursuant to the Offer and the
satisfaction of the other conditions set forth in the Merger Agreement and in
accordance with relevant provisions of Delaware law, the Offeror will be merged
with and into the Company (the "Merger"). At the effective time of the Merger
(the "Effective Time"), each Share issued and outstanding immediately prior to
the Effective Time (other than Shares held in the treasury of the Company,
Shares held by the Parent, the Offeror or any other subsidiary of the Parent, or
Shares which are held by stockholders, if any, who properly exercise their
appraisal rights under Delaware law) will be converted into the right to receive
$37.50 in cash without interest. Concurrent with the execution of the Merger
Agreement, the Parent entered into a Stock Option and Tender Agreement dated as
of August 9, 1995, with American States Insurance Company (the "Selling
Stockholder"), and its parent Lincoln National Corporation, pursuant to which
the Selling Stockholder has agreed to tender into the Offer and not withdraw
all 4,986,507 Shares owned by it, representing approximately 29.2% of the
outstanding Shares.

      The Offer is conditioned upon, among other things, (i) there being validly
tendered and not withdrawn prior to the expiration of the Offer that number of
Shares representing at least a majority of all outstanding Shares on a fully
diluted basis, (ii) the Office of the Commissioner of Insurance of the State of
Wisconsin and the Department of Corporations of the State of California having
issued final orders approving, exempting or otherwise authorizing consummation
of the Merger, and all other transactions contemplated by the Merger Agreement
as may require such authorization (provided any such order does not impose terms
or conditions that materially and adversely affect the economic benefits of the
transactions contemplated by the Merger Agreement) and (iii) satisfaction of
certain other terms and conditions. The Merger Agreement and the Offer may also
be terminated by the Offeror and the Parent if, among other things, the Company
does not attain certain percentages of specified financial and operational
targets.

      THE BOARD OF DIRECTORS OF THE COMPANY HAS DETERMINED THAT EACH OF THE
OFFER AND THE MERGER IS FAIR TO AND IN THE BEST INTERESTS OF THE COMPANY'S
STOCKHOLDERS, HAS APPROVED THE MERGER AGREEMENT AND THE TRANSACTIONS
CONTEMPLATED THEREBY, INCLUDING THE OFFER AND MERGER, AND RECOMMENDS THAT THE
COMPANY'S STOCKHOLDERS ACCEPT THE OFFER AND TENDER ALL THEIR SHARES PURSUANT
THERETO.

      For purposes of the Offer, the Offeror will be deemed to have accepted for
payment, and thereby purchased Shares validly tendered and not withdrawn if and
when the Offeror gives oral or written notice to the Depositary of the Offeror's
acceptance of such Shares for payment. In all cases, payment for Shares
purchased pursuant to the Offer will be made by deposit of the purchase price
with the Depositary, which shall act as agent for tendering stockholders for the
purpose of receiving payment from the Offeror and transmitting payment to
tendering stockholders. Payment for Shares accepted for payment pursuant to the
Offer will be made only after timely receipt by the Depositary of certificates
for such Shares or timely confirmation of a book-entry transfer of such Shares
into the Depositary's account at the Book-Entry Transfer Facilities (as defined
in the Offer to Purchase) pursuant to the procedures set forth in the Offer to
Purchase and timely receipt by the Depositary of a properly completed and duly
executed Letter of Transmittal (or manually signed facsimile thereof), with any
required signature guarantees, or, in the case of a book-entry transfer, an
Agent's Message (as defined in the Offer to Purchase) and any other documents
required by the Letter of Transmittal.

<PAGE>   2

      If any of the conditions set forth in the Offer to Purchase that relate to
the Offeror's obligations to purchase the Shares are not satisfied by 12:00
Midnight, New York City time, on Friday, September 15, 1995 (or any other time
then set as the Expiration Date), the Offeror may, subject to the terms of the
Merger Agreement, (i) extend the Offer and, subject to applicable withdrawal
rights, retain all tendered Shares until the expiration of the Offer as so
extended, (ii) subject to complying with applicable rules and regulations of the
Securities and Exchange Commission accept for payment all Shares so tendered and
not extend the Offer, or (iii) terminate the Offer and not accept for payment
any Shares and return all tendered Shares to tendering stockholders. The term
"Expiration Date" shall mean 12:00 Midnight, New York City time, on Friday,
September 15, 1995, unless the Offeror shall have extended the period of time
for which the Offer is open, in which event the term "Expiration Date" shall
mean the latest time and date at which the Offer, as so extended by the Offeror,
shall expire. The Offeror expressly reserves the right, in its sole discretion,
at any time or from time to time, subject to applicable law and to the terms of
the Merger Agreement, to extend the period during which the Offer is open by
giving oral or written notice of such extension to the Depositary followed by,
as promptly as practicable, a public announcement thereof no later than 9:00
a.m., New York City time, on the next business day after the previously
scheduled Expiration Date.

      Except as otherwise provided in Section 4 of the Offer to Purchase,
tenders of Shares made pursuant to the Offer are irrevocable, except that Shares
tendered pursuant to the Offer may be withdrawn at any time prior to the
Expiration Date, and, unless theretofore accepted for payment, may also be
withdrawn at any time after Saturday, October 14, 1995. For a withdrawal to be
effective, a written, telegraphic, telex or facsimile transmission notice of
withdrawal must be timely received by the Depositary at one of its addresses set
forth on the back cover of the Offer to Purchase. Any such notice of withdrawal
must specify the name of the person who tendered the Shares to be withdrawn, the
number of Shares to be withdrawn and the name of the registered holder if
different from the name of the person who tendered the Shares. If certificates
for Shares to be withdrawn have been delivered or otherwise identified to the
Depositary, then prior to the physical release of such certificates, the serial
numbers shown on such certificates must be submitted to the Depositary and,
unless such Shares have been tendered for the account of an Eligible Institution
(as defined in the Offer to Purchase), the signatures on the notice of
withdrawal must be guaranteed by an Eligible Institution. If Shares have been
tendered pursuant to the procedures for book-entry transfer set forth in Section
3 of the Offer to Purchase, the notice of withdrawal must also specify the name
and number of the account at the applicable Book-Entry Transfer Facility (as
defined in the Offer to Purchase) to be credited with the withdrawn Shares. All
questions as to the form and validity (including time of receipt) of a notice of
withdrawal will be determined by the Offeror, in its sole discretion, and its
determination shall be final and binding on all parties.

      The information required to be disclosed by Paragraph (e)(1)(vii) of Rule
14d-6 of the General Rules and Regulations under the Securities Exchange Act of
1934, as amended, is contained in the Offer to Purchase and is incorporated
herein by reference.

      The Company has provided to the Offeror its lists of stockholders and
security position listings for the purpose of disseminating the Offer to holders
of Shares. The Offer to Purchase, the related Letter of Transmittal and other
related materials are being mailed to record holders of Shares and will be
mailed to brokers, dealers, commercial banks, trust companies and similar
persons whose names, or the names of whose nominees, appear on the stockholder
lists or, if applicable, who are listed as participants in a clearing agency's
security position listing, for subsequent transmittal to beneficial owners of
Shares.

      The Offer to Purchase and the related Letter of Transmittal contain
important information that should be read before any decision is made with
respect to the Offer.

      Requests for copies of the Offer to Purchase and the related Letter of
Transmittal and other tender offer material may be directed to the
Information Agent or the Dealer Manager as set forth below, and copies will
be furnished promptly at the Offeror's expense. No fees or commissions will
be payable to brokers, dealers or other persons other than the Information
Agent, the Dealer Manager, and the Depositary for soliciting tenders of
Shares pursuant to the Offer.

                    The Information Agent for the Offer is:
                             D.F. King & Co., Inc.
                                77 Water Street
                            New York, New York 10005
                 Banks and Brokers Call Collect: (212) 269-5550
                   All Others Call Toll-Free: (800) 755-3107

                      The Dealer Manager for the Offer is:

                               Smith Barney Inc.
                              388 Greenwich Street
                            New York, New York 10013
                                 (212)816-7620
August 16, 1995




<PAGE>   1
HUMANA NEWS RELEASE

For Further Information:

Wayne R. Micksch                                     Laurie G. Scarborough
EMPHESYS - Vice President & Treasurer                Humana - Investor Relations
414/337-5210                                         502/580-1037

Jon Drayna                                           Greg Donaldson
EMPHESYS - Media Relations                           Humana - Public Affairs
414/337-5725                                         502/580-3683

                                                     August 10, 1995


                    HUMANA ANNOUNCES ACQUISITION OF EMPHESYS

             Louisville, KY --- Humana Inc. (NYSE: HUM) today announced that
the company has signed a definitive agreement to acquire EMPHESYS Financial
Group, Inc. (NYSE: EFG), the nation's tenth largest commercial group health
insurer.  After the combination, Humana will have annual premium revenues of
$5.6 billion, providing health care products to 3.7 million members
concentrated in 22 states and the District of Columbia.

             Under the proposed transaction, which has been approved by
EMPHESYS's board of directors, Humana will commence an all cash tender offer on
or prior to August 16, 1995, to acquire all of EMPHESYS's outstanding common
stock for $37.50 per share.  The total consideration approximates $650 million.
The initial tender offer period will expire September 15, 1995, unless extended
by Humana.  The transaction, which is subject to certain regulatory approvals,
is expected to be completed in the fall of 1995.  Humana also has the right to
terminate the transaction if the financial results of EMPHESYS during the
tender offer period do not achieve certain specified thresholds.

             Lincoln National Corporation through a subsidiary owns
approximately 29 percent of the outstanding shares of EMPHESYS.  Lincoln
National has agreed to tender

<PAGE>   2



its shares, has granted Humana an option to acquire all of its EMPHESYS shares
at $37.50 per share and has entered into other customary provisions with
Humana.

             EMPHESYS, through its subsidiary Employers Health Insurance
Company, is a leading provider of a broad range of employee benefit products,
including managed care group medical, group life, dental, and disability income
insurance.  Focusing primarily on small group customers, EMPHESYS provides
health care services to 1.3 million members, with 1.1 million participants in
fully-insured medical products.

             "EMPHESYS fits perfectly with our strategic plan to grow in
existing markets and to expand into attractive new markets," said Wayne T.
Smith, Humana's president and chief operating officer.  "Half of EMPHESYS's
fully-insured membership is in states where we already do business.  EMPHESYS
also has membership and networks in markets where we want to be.  That
membership - in markets like Atlanta, Dallas and Houston - forms a foundation
on which to build and enhance existing provider networks while offering a full
array of managed care products."

             "EMPHESYS has created an impressive small business product and is
now a major player in the small group market - one that is fast growing and
under-penetrated," said Mr. Smith.  "They bring this additional sales and
marketing expertise to Humana.  Coupled with our medical management skills,
this new organization will be a more significant force with an even wider
offering of competitive products and services."

             "Humana's experience in network development and medical management
will enhance our organization," said William J.  Lawson, EMPHESYS' chairman and
chief executive officer.  "This experience, supported by Humana's information
systems, should enable us to further enhance our managed care capabilities."

             "EMPHESYS contributes strong sales and marketing capabilities with
more than 40,000 brokers in our distribution system.  We are very excited about
the opportunity to offer Humana's managed care products to EMPHESYS members and
to sell our specialty products to Humana's membership," said Gregory H. Wolf,
president and chief





<PAGE>   3



operating officer of EMPHESYS.  "This combination makes good sense for the
members, customers and shareholders of both EMPHESYS and Humana."

             EMPHESYS, based in Green Bay, Wisconsin, is one of the nation's
premier health insurers in the small group market.  Headquartered in
Louisville, Kentucky, Humana provides managed health care services to 2.4
million members through the operation of health maintenance organizations and
preferred provider organizations located in 14 states and the District of
Columbia.





<PAGE>   4

                                MEMBERSHIP DATA
                                 June 30, 1995
                                     (000)


<TABLE>
<CAPTION>
                                                                          PROFORMA
                               HUMANA              EMPHESYS                 TOTAL
                               ------              --------             ------------
<S>                            <C>                 <C>                  <C>
MEDICAL PRODUCTS:
   Commercial                   1,719                   931                2,650
   Medicare risk                  297                    --                  297
   Medicare supplement            122                    --                  122
   Indemnity                       --                   145                  145
                                -----                 -----                -----
                                2,138                 1,076                3,214
   ASO                            264                   217                  481
                                -----                 -----                -----
                                2,402                 1,293                3,695
                                =====                 =====                =====

SPECIALTY PRODUCTS:
   Pharmacy management          2,997                    --                2,997
   Dental                         226                   566                  792
   Life                            --                   580                  580
   Workers compensation           210                    --                  210
   Disability                      --                   103                  103
</TABLE>




                                     # # #


<PAGE>   1
                      ___________________________________


                          AGREEMENT AND PLAN OF MERGER


                                     AMONG


                                  HUMANA INC.


                                   HEW, INC.


                                      AND


                         EMPHESYS FINANCIAL GROUP, INC.


                           DATED AS OF AUGUST 9, 1995

                      ___________________________________
<PAGE>   2


                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                                         Page
                                                                                                                         ----
<S>                                                                                                                      <C>
Parties and Recitals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     1

                                                     ARTICLE I

                                                     THE OFFER

Section 1.1  The Offer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     2
Section 1.2  Company Actions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     4

                                                     ARTICLE II

                                                     THE MERGER

Section 2.1  The Merger  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     5
Section 2.2  Effective Time  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     6
Section 2.3  Effects of the Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     6
Section 2.4  Certificate of Incorporation and Bylaws; Directors and Officers . . . . . . . . . . . . . . . . . . . . .     6
Section 2.5  Conversion of Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     6
Section 2.6  Exchange of Certificates  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     7
Section 2.7  Dissenting Company Common Shares  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     8
Section 2.8  Merger Without Meeting of Stockholders  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     9
Section 2.9  No Further Ownership Rights in Common Stock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     9
Section 2.10 Closing of Company Transfer Books . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     9
Section 2.11 Further Assurances  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .     9

                                                    ARTICLE III

                                      REPRESENTATIONS AND WARRANTIES OF PARENT

Section 3.1  Organization, Standing and Power  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    10
Section 3.2  Authority; Non-Contravention  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    10
Section 3.3  Offer Documents and Proxy Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    12
Section 3.4  Financing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    12
Section 3.5  Brokers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    12

                                                     ARTICLE IV

                                   REPRESENTATIONS AND WARRANTIES OF THE COMPANY

Section 4.1  Organization, Standing and Power  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    13
Section 4.2  Capital Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    13
Section 4.3  Subsidiaries.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    13
Section 4.4  Other Interests.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    14
Section 4.5  Authority; Non-Contravention  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    14
Section 4.6  SEC Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    16
</TABLE>



                                      -i-
<PAGE>   3

<TABLE>
<S>                                                                                                                      <C>
Section 4.7  Offer Documents and Proxy Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    16
Section 4.8  Absence of Certain Events . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    17
Section 4.9  Litigation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    17
Section 4.10 Compliance with Applicable Law. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    18
Section 4.11 Employee Plans.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    18
Section 4.12 Employment Relations and Agreement.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    20
Section 4.13 Contracts.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    21
Section 4.14 Accreditations.   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    21
Section 4.15 Monthly Business Plans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    21
Section 4.16 State Takeover Statutes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    21
Section 4.17 Taxes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    22
Section 4.18 Brokers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    22

                                                     ARTICLE V

                                    REPRESENTATIONS AND WARRANTIES REGARDING SUB

Section 5.1  Organization and Standing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    23
Section 5.2  Capital Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    23
Section 5.3  Authority; Non-Contravention  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    23

                                                     ARTICLE VI

                                     COVENANTS RELATING TO CONDUCT OF BUSINESS

Section 6.1  Conduct of Business by the Company Pending the Merger . . . . . . . . . . . . . . . . . . . . . . . . . .    24
Section 6.2  Acquisition Proposals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    26
Section 6.3  Conduct of Business of Sub Pending the Merger . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    27

                                                    ARTICLE VII

                                               ADDITIONAL AGREEMENTS

Section 7.1  Company Stockholder Approval; Proxy Statement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    27
Section 7.2  Access to Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    28
Section 7.3  Fees and Expenses . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    29
Section 7.4  Company Stock Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    30
Section 7.5  Reasonable Best Efforts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    31
Section 7.6  Public Announcements  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    31
Section 7.7  Real Estate Transfer and Gains Taxes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    32
Section 7.8  1996 Monthly Plans  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    32
Section 7.9  Indemnification; Directors and Officers Insurance . . . . . . . . . . . . . . . . . . . . . . . . . . . .    32
Section 7.10 Employee Benefits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    33
Section 7.11 Severance Policy  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    35
Section 7.12 Board Representations.  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    35
Section 7.13 Certificates. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    36
</TABLE>



                                     -ii-
<PAGE>   4

<TABLE>
<CAPTION>
                                                                                                                         Page
                                                                                                                         ----
<S>                                                                                                                      <C>
                                                    ARTICLE VIII

                                                CONDITIONS PRECEDENT

Section 8.1  Conditions to Each Party's Obligation to Effect the Merger  . . . . . . . . . . . . . . . . . . . . . . .    38

                                                     ARTICLE IX

                                         TERMINATION, AMENDMENT AND WAIVER

Section 9.1  Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    38
Section 9.2  Effect of Termination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    41
Section 9.3  Amendment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    41
Section 9.4  Waiver  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    41
Section 9.5  Procedure for Termination, Amendment or Waiver.   . . . . . . . . . . . . . . . . . . . . . . . . . . . .    42

                                                     ARTICLE X

                                                 GENERAL PROVISIONS

Section 10.1  Non-Survival of Representations and Warranties . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    42
Section 10.2  Notices  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    42
Section 10.3  Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    43
Section 10.4  Counterparts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    43
Section 10.5  Entire Agreement; No Third-Party Beneficiaries . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    43
Section 10.6  Governing Law  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    44
Section 10.7  Assignment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    44
Section 10.8  Severability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    44
Section 10.9  Enforcement of this Agreement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    44
Section 10.10 Incorporation of Exhibits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .    44

EXHIBIT  A   Conditions of the Offer
</TABLE>



                                     -iii-

<PAGE>   5
                          AGREEMENT AND PLAN OF MERGER



                 AGREEMENT AND PLAN OF MERGER, dated as of August 9, 1995 (this
"Agreement"), among Humana Inc., a Delaware corporation ("Parent"), HEW, Inc.,
a Delaware corporation ("Sub") and a wholly owned subsidiary of Parent, and
EMPHESYS Financial Group, Inc., a Delaware corporation (the "Company") (Sub and
the Company being hereinafter collectively referred to as the "Constituent
Corporations").


                              W I T N E S S E T H:


                 WHEREAS, the respective Boards of Directors of Parent, Sub and
the Company have approved the acquisition of the Company by Parent pursuant to
a tender offer (the "Offer") by Parent for all of the outstanding shares of
Common Stock, par value $.01 per share (the "Common Stock"), of the Company at
a price of $37.50 per share, net to the seller in cash, followed by a merger
(the "Merger") of Sub with and into the Company upon the terms and subject to
the conditions set forth herein;

                 WHEREAS, the Board of Directors of the Company has adopted
resolutions approving the Offer and the Merger and recommending that the
Company's stockholders accept the Offer;

                 WHEREAS, Parent has informed the Company that Parent has
previously entered into a Stock Option and Tender Agreement (the "Stock Option
Agreement") with Lincoln National Corporation and American States Insurance
Company (collectively, "Stockholder") pursuant to which Stockholder has agreed,
among other things, (i) to tender all of the shares of Common Stock that
Stockholder now owns or hereafter acquires (the "Stockholder Shares"), (ii) to
grant Parent the option to purchase all of the Stockholder Shares, (iii) to
appoint Parent as Stockholder's proxy to vote the Stockholder Shares, and (iv)
with respect to certain questions put to stockholders of the Company for a
vote, to vote the Stockholder Shares, in each case, in accordance with the
terms and conditions of the Stock Option Agreement; and

                 WHEREAS, pursuant to the Merger, each issued and outstanding
share of Common Stock not owned directly or indirectly by Parent or the Company
will be converted into the right to receive the per share consideration paid
pursuant to the Offer.

                 NOW, THEREFORE, in consideration of the premises and the
representations, warranties and agreements herein contained, the parties agree
as follows:
<PAGE>   6

                                   ARTICLE I

                                   THE OFFER

                 Section 1.1  The Offer.  (a)  Subject to the provisions of
this Agreement, as promptly as practicable but in no event later than August
16, 1995, Sub shall, and Parent shall cause Sub to, commence, within the
meaning of Rule 14d-2 under the Exchange Act (as hereinafter defined), the
Offer.  The obligation of Sub to, and of Parent to cause Sub to, commence the
Offer and accept for payment, and pay for, any shares of Common Stock tendered
pursuant to the Offer shall be subject to the conditions set forth in Exhibit A
and to the terms and conditions of this Agreement.  The initial expiration date
of the Offer shall be September 15, 1995.  Without the prior written consent of
the Company, Sub shall not (i) waive the Minimum Condition (as defined in
Exhibit A), (ii) reduce the number of shares of Common Stock subject to the
Offer, (iii) reduce the price per share of Common Stock to be paid pursuant to
the Offer, (iv) extend the Offer if all of the Offer conditions are satisfied
or waived, (v) change the form of consideration payable in the Offer, or (vi)
amend, add or waive any term or condition of the Offer (including the
conditions set forth on Exhibit A) in any manner that would adversely affect
the Company or its stockholders.  Notwithstanding the foregoing, Sub may,
without the consent of the Company, extend the Offer (i) if at the then
scheduled expiration date of the Offer any of the conditions to Sub's
obligation to accept for payment and pay for shares of Common Stock shall not
have been satisfied or waived, until the later of (x) any period during which
the Offer may remain open pursuant to clauses (ii)-(v) below, and (y) the fifth
business day after the date Sub reasonably believes to be the earliest date on
which such conditions may be satisfied; (ii) for any period required by any
rule, regulation, interpretation or position of the SEC (as hereinafter
defined) or its staff applicable to the Offer; (iii) if the condition in clause
(f) of Exhibit A referring to a 10 business day period shall not have been
satisfied, for up to three business days after the scheduled expiration date of
such period; (iv) if all Offer conditions are satisfied or waived but the
number of shares of Common Stock tendered is less than 90% of the then
outstanding number of shares of Common Stock, for an aggregate period of not
more than 15 business days (for all such extensions) beyond the latest
expiration date that would be permitted under clause (i), (ii) or (iii) of this
sentence; and (v) if all Offer conditions are satisfied or waived but the
number of shares of Common Stock tendered is less than 90% of the then
outstanding number of shares of Common Stock, for an aggregate period of not
more than 10 business days (for all such extensions) beyond the latest
expiration date that would be permitted under clause (i), (ii), (iii) or (iv)
of this sentence (provided that Sub shall acknowledge that, except in the case
of an occurrence of an event that would cause the condition contained in
Section 8.1(b) not to be satisfied, all the Offer





                                      -2-




<PAGE>   7
conditions shall be deemed to be waived and all shares of Common Stock which
are validly tendered and not withdrawn upon the expiration of such extended
period will be accepted and purchased.  In addition to the right of Sub to
extend the Offer pursuant to the previous sentence, Sub shall have the right to
extend the Offer until five business days from the date on which Sub receives
all certificates required to have been delivered to it pursuant to Section 7.13
on or prior to the scheduled expiration date in effect prior to the extension
permitted by this sentence.  The obligation of the Company to provide
certificates pursuant to Section 7.13 and the right of Parent to terminate this
Agreement pursuant to Section 9.3(c)(ii) shall remain in effect until Sub
acquires shares of Common Stock pursuant to the Offer without affecting the
right of Sub to extend the Offer pursuant to clause (iv) above; provided,
however, that if Sub exercises its right to extend the Offer pursuant to clause
(v) above, the Company's obligation to provide certificates pursuant to Section
7.13 shall cease and the Parent shall have no further right to terminate this
Agreement pursuant to Section 9.1(c)(ii).  So long as this Agreement is in
effect and the Offer conditions have not been satisfied or waived, Sub shall,
and Parent shall cause Sub to, cause the Offer not to expire.  Subject to the
terms and conditions of the Offer and the Agreement, Sub shall, and Parent
shall cause Sub to, pay for all shares of Common Stock validly tendered and not
withdrawn pursuant to the Offer as soon as practicable after the expiration of
the Offer.

                 (b)  On the date of commencement of the Offer, Parent and Sub
shall file with the Securities and Exchange Commission (the "SEC") a Tender
Offer Statement on Schedule 14D-1 with respect to the Offer, which shall
contain an offer to purchase and a related letter of transmittal (such Schedule
14D-1 and the documents therein pursuant to which the Offer will be made,
together with any supplements or amendments thereto, the "Offer Documents").
The Company and its counsel shall be given an opportunity to review and comment
upon the Offer Documents prior to the filing thereof with the SEC.  The Offer
Documents shall comply as to form in all material respects with the
requirements of the Securities Exchange Act of 1934, as amended (including the
rules and regulations promulgated thereunder, the "Exchange Act"), and on the
date filed with the SEC and on the date first published, sent or given to the
Company's stockholders, the Offer Documents shall not contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they were made, not misleading, except that no
representation is made by Parent or Sub with respect to information supplied by
the Company for inclusion in the Offer Documents.  Each of Parent, Sub and the
Company agrees promptly to correct any information provided by it for use in
the Offer Documents if and to the extent that such information shall have
become false or misleading in any material





                                      -3-
<PAGE>   8
respect, and each of Parent, Sub and Company further agrees to take all steps
necessary to cause the Offer Documents as so corrected to be filed with the SEC
and to be disseminated to holders of shares of Common Stock, in each case as
and to the extent required by applicable federal securities laws.  Parent and
Sub agree to provide the Company and its counsel in writing with any comments
Parent, Sub or their counsel may receive from the SEC or its staff with respect
to the Offer Documents.

                 (c)  Prior to or concurrently with the expiration of the
Offer, Parent shall provide or cause to be provided to Sub all of the funds
necessary to purchase any shares of Common Stock that Sub becomes obligated to
purchase pursuant to the Offer.

                 Section 1.2  Company Actions.  (a)  The Company hereby
approves of and consents to the Offer and represents that the Board of
Directors of the Company at a meeting duly called and held has duly adopted
resolutions approving this Agreement, the Offer and the Merger, determining
that the Merger is advisable and that the terms of the Offer and Merger are
fair to, and in the best interests of, the Company's stockholders and
recommending that the Company's stockholders accept the Offer and approve the
Merger and this Agreement.  The Company represents that its Board of Directors
has received the written opinion of Morgan Stanley & Co. Incorporated that the
proposed consideration to be received by the holders of shares of Common Stock
pursuant to the Offer and the Merger is fair to such holders from a financial
point of view.  Subject to the fiduciary duties of the Board of Directors of
the Company under applicable law as determined by the Board of Directors in
good faith after consultation with the Company's outside counsel, the Company
hereby consents to the inclusion in the Offer Documents of the recommendation
of the board of directors of the Company described in the first sentence of
this Section 1.2.

                 (b)  On the date the Offer Documents are filed with the SEC,
the Company shall file with the SEC a Solicitation/ Recommendation Statement on
Schedule 14D-9 with respect to the Offer (such Schedule 14D-9, as amended from
time to time, the "Schedule 14D-9") containing the recommendations described in
paragraph (a) above (subject to the fiduciary duties of the Board of Directors
of the Company under applicable law as determined by the Board of Directors in
good faith after consultation with the Company's outside counsel) and shall
mail the Schedule 14D-9 to the stockholders of the Company.  To the extent
practicable, the Company shall cooperate with Parent in mailing or otherwise
disseminating the Schedule 14D-9 with the appropriate Offer Documents to the
Company's stockholders.   Parent and its counsel shall be given an opportunity
to review and comment upon the Schedule 14D-9 prior to the filing thereof with
the SEC.  The Schedule 14D-9 shall comply as to form in all material respects
with the requirements of the Exchange Act and, on the date filed with the SEC
and on the date first published, sent or given to





                                      -4-
<PAGE>   9
the Company's stockholders, shall not contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they were made, not misleading, except that no
representation is made by the Company with respect to information supplied by
Parent or Sub for inclusion in the Schedule 14D-9.  Each of the Company, Parent
and Sub agrees promptly to correct any information provided by it for use in
the Schedule 14D-9 if and to the extent that such information shall have become
false or misleading in any material respect, and the Company further agrees to
take all steps necessary to cause the Schedule 14D-9 as so corrected to be
filed with the SEC and disseminated to the holders of shares of Common Stock,
in each case as and to the extent required by applicable federal securities
laws.  The Company agrees to provide Parent and Sub and their counsel in
writing with any comments the Company or its counsel may receive from the SEC
or its staff with respect to the Schedule 14D-9 promptly after the receipt of
such comments.

                 (c)  In connection with the Offer, the Company shall cause its
transfer agent to furnish Sub with mailing labels containing the names and
addresses of the record holders of Common Stock as of a recent date and of
those persons becoming record holders subsequent to such date, together with
copies of all lists of stockholders, security position listings and computer
files and all other information in the Company's possession or control
regarding the beneficial owners of Common Stock, and shall furnish to Sub such
information and assistance (including updated lists of stockholders, security
position listings and computer files) as Sub may reasonably request in
communicating the Offer to the Company's stockholders.  Subject to the
requirements of law, and except for such steps as are necessary to disseminate
the Offer Documents and any other documents necessary to consummate the Merger,
Parent and Sub and each of their affiliates and associates shall hold in
confidence the information contained in any of such labels, lists and files,
will use such information only in connection with the Offer and the Merger,
and, if this Agreement is terminated, will promptly deliver to the Company all
copies of such information then in their possession.


                                   ARTICLE II

                                   THE MERGER

                 Section 2.1  The Merger.  Upon the terms and subject to the
conditions hereof, and in accordance with the General Corporation Law of the
State of Delaware, as amended (the "DGCL"), Sub shall be merged with and into
the Company at the Effective Time (as hereinafter defined).  Following the
Merger, the separate corporate existence of Sub shall cease and the





                                      -5-
<PAGE>   10
Company shall continue as the surviving corporation (the "Surviving
Corporation") and shall succeed to and assume all the rights and obligations of
Sub in accordance with the DGCL.

                 Section 2.2  Effective Time.  The Merger shall become
effective when the Certificate of Merger or, if applicable, the Certificate of
Ownership and Merger (each, the "Certificate of Merger"), executed in
accordance with the relevant provisions of the DGCL, are accepted for record by
the Secretary of State of the State of Delaware.  When used in this Agreement,
the term "Effective Time" shall mean the later of the date and time at which
the Certificate of Merger is accepted for record or such later time established
by the Certificate of Merger.  The filing of the Certificate of Merger shall be
made as soon as practicable after the satisfaction or waiver of the conditions
to the Merger set forth herein.

                 Section 2.3  Effects of the Merger.  The Merger shall have the
effects set forth in the DGCL.

                 Section 2.4  Certificate of Incorporation and Bylaws;
Directors and Officers.  (a) The Certificate of Incorporation of the Sub, as in
effect immediately prior to the Effective Time, shall be amended to change the
name of Sub to "EMPHESYS Financial Group, Inc." and, as so amended, the
Certificate of Incorporation and the Bylaws of Sub, shall be the Certificate of
Incorporation and the Bylaws of the Surviving Corporation until thereafter
changed or amended as provided therein or by Certificate of Incorporation and
applicable law.

                 (b) The directors and officers of Sub immediately prior to the
Effective Time shall be the directors and officers, respectively, of the
Surviving Corporation as of the Effective Time.

                 Section 2.5  Conversion of Securities.  As of the Effective
Time, by virtue of the Merger and without any action on the part of any
stockholder of the Company:

                 (a)   All shares of Common Stock that are held in the treasury
         of the Company or by any wholly owned Subsidiary (as hereinafter
         defined) of the Company and any shares of Common Stock owned by
         Parent, Sub or any other wholly owned Subsidiary of Parent shall be
         cancelled and no consideration shall be delivered in exchange
         therefor.

                 (b)  Each share of Common Stock issued and outstanding
         immediately prior to the Effective Time (other than shares to be
         cancelled in accordance with Section 2.5(a) and other than Dissenting
         Company Common Shares (as defined in Section 2.7)) shall be converted
         into the right to receive from the Surviving





                                      -6-
<PAGE>   11
         Corporation in cash, without interest, the per share consideration in
         the Offer (the "Merger Consideration").  All such shares of Common
         Stock, when so converted, shall no longer be outstanding and shall
         automatically be cancelled and retired and each holder of a
         certificate or certificates (the "Certificates") representing any such
         shares shall cease to have any rights with respect thereto, except the
         right to receive the Merger Consideration.

                 (c)  Each issued and outstanding share of the capital stock of
         Sub shall be converted into and become one fully paid and
         nonassessable share of Common Stock, par value $.01 per share, of the
         Surviving Corporation.

                 Section 2.6  Exchange of Certificates.  (a) Paying Agent.
Parent shall authorize a commercial bank or trust company having net capital of
not less than $20 million (or such other person or persons as shall be
reasonably acceptable to the Company) to act as paying agent hereunder (the
"Paying Agent") for the payment of the Merger Consideration upon surrender of
Certificates.  All of the fees and expenses of the Paying Agent shall be borne
by Parent.

                 (b)  Surviving Corporation to Provide Funds.  Parent shall
take all steps necessary to enable and cause the Surviving Corporation to
deposit in trust with the Paying Agent prior to the Effective Time cash in an
amount necessary to pay for all of the shares of Common Stock pursuant to
Section 2.5 (determined as though there are no Dissenting Company Common
Shares) and, in connection with the Company Stock Options, pursuant to Section
7.4.  Such amount shall hereinafter be referred to as the "Exchange Fund."  If
the amount of cash in the Exchange Fund is insufficient to pay all of the
amounts required to be paid pursuant to Sections 2.5, 2.7 or 7.4, Parent from
time to time after the Effective Time shall take all steps necessary to enable
and cause the Surviving Corporation to deposit in trust additional cash with
the Paying Agent sufficient to make all such payments.

                 (c)  Exchange Procedures.  As soon as practicable after the
Effective Time, the Paying Agent shall mail to each holder of record of a
Certificate, other than Parent, the Company and any Subsidiary of Parent or the
Company, (i) a letter of transmittal (which shall specify that delivery shall
be effected, and risk of loss and title to the Certificates shall pass, only
upon actual delivery of the Certificates to the Paying Agent and shall be in a
form and have such other provisions as Parent may reasonably specify) and (ii)
instructions for use in effecting the surrender of the Certificates in exchange
for the Merger Consideration.  Upon surrender of a Certificate for cancellation
to the Paying Agent or to such other agent or agents as may be appointed by the
Surviving Corporation, together with such letter of transmittal,





                                      -7-
<PAGE>   12
duly executed, and such other documents as may reasonably be required by the
Paying Agent, the holder of such Certificate shall be entitled to receive in
exchange therefor the amount of cash into which the shares of Common Stock
theretofore represented by such Certificate shall have been converted pursuant
to Section 2.5, and the Certificates so surrendered shall forthwith be
cancelled.  No interest will be paid or will accrue on the cash payable upon
the surrender of any Certificate.  If payment is to be made to a person other
than the person in whose name the Certificate so surrendered is registered, it
shall be a condition of payment that such Certificate shall be properly
endorsed or otherwise in proper form for transfer and that the person
requesting such payment shall pay any transfer or other taxes required by
reason of such Certificate or establish to the satisfaction of the Surviving
Corporation that such tax has been paid or is not applicable.  Until
surrendered as contemplated by this Section 2.6, each Certificate (other than
Certificates representing Dissenting Company Common Shares and Certificates
representing any shares of Common Stock owned by Parent or any Subsidiary of
Parent) shall be deemed at any time after the Effective Time to represent only
the right to receive upon such surrender the amount of cash, without interest,
into which the shares of Common Stock theretofore represented by such
Certificate shall have been converted pursuant to Section 2.5.  Notwithstanding
the foregoing, none of the Paying Agent, the Surviving Corporation or any party
hereto shall be liable to a former stockholder of the Company for any cash or
interest delivered to a public official pursuant to applicable abandoned
property, escheat or similar laws.  Any portion of the Exchange Fund that
remains unclaimed by the stockholders of the Company for one year after the
Effective Time shall be repaid to the Surviving Corporation (including, without
limitation, all interest and other income received by the Paying Agent in
respect of all such funds).  Thereafter, holders of shares of Common Stock
shall look only to Parent or the Surviving Corporation (subject to the terms of
this Agreement, abandoned property, escheat and other similar laws) as general
creditors thereof with respect to any Merger Consideration that may be payable
upon due surrender of the Certificates held by them.

                 Section 2.7  Dissenting Company Common Shares.
Notwithstanding any provision of this Agreement to the contrary, if required by
the DGCL but only to the extent required thereby, shares of Common Stock which
are issued and outstanding immediately prior to the Effective Time and which
are held by holders of such shares of Common Stock who have properly exercised
appraisal rights with respect thereto in accordance with Section 262 of the
DGCL (the "Dissenting Company Common Shares") will not be exchangeable for the
right to receive the Merger Consideration, and holders of such shares of Common
Stock will be entitled to receive payment of the appraised value of such shares
of Common Stock in accordance with the provisions of such Section 262 unless
and until such holders fail to perfect or





                                      -8-
<PAGE>   13
effectively withdraw or lose their rights to appraisal and payment under the
DGCL.  If, after the Effective Time, any such holder fails to perfect or
effectively withdraws or loses such right, such shares of Common Stock will
thereupon be treated as if they had been converted into and to have become
exchangeable for, at the Effective Time, the right to receive the Merger
Consideration, without any interest thereon.  The Company will give Parent
prompt notice of any demands received by the Company for appraisals of shares
of Common Stock.  The Company shall not, except with the prior written consent
of Parent, make any payment with respect to any demands for appraisal or offer
to settle or settle any such demands.

                 Section 2.8  Merger Without Meeting of Stockholders.
Notwithstanding the foregoing, in the event that Sub, or any other direct or
indirect subsidiary of Parent, shall acquire at least 90 percent of the
outstanding shares of Common Stock, the parties hereto agree to take all
necessary and appropriate action to cause the Merger to become effective as
soon as practicable after the expiration of the Offer without a meeting of
stockholders of the Company, in accordance with Section 253 of the DGCL.

                 Section 2.9  No Further Ownership Rights in Common Stock.  All
cash paid upon the surrender of Certificates in accordance with the terms
hereof shall be deemed to have been issued in full satisfaction of all rights
pertaining to the shares of Common Stock.

                 Section 2.10  Closing of Company Transfer Books.  At the
Effective Time, the stock transfer books of the Company shall be closed and no
transfer of shares of Common Stock shall thereafter be made.  If, after the
Effective Time, Certificates are presented to the Surviving Corporation, they
shall be cancelled and exchanged as provided in this Article II.

                 Section 2.11  Further Assurances.  If at any time after the
Effective Time the Surviving Corporation shall consider or be advised that any
deeds, bills of sale, assignments or assurances or any other acts or things are
necessary, desirable or proper (a) to vest, perfect or confirm, of record or
otherwise, in the Surviving Corporation, its right, title or interest in, to or
under any of the rights, privileges, powers, franchises, properties or assets
of either of the Constituent Corporations, or (b) otherwise to carry out the
purposes of this Agreement, the Surviving Corporation and its proper officers
and directors or their designees shall be authorized to execute and deliver, in
the name and on behalf of either of the Constituent Corporations in the Merger,
all such deeds, bills of sale, assignments and assurances and do, in the name
and on behalf of such Constituent Corporations, all such other acts and things
necessary, desirable or proper to vest, perfect or confirm its right, title or
interest in, to or under any of the rights, privileges, powers,





                                      -9-
<PAGE>   14
franchises, properties or assets of such Constituent Corporation and otherwise
to carry out the purposes of this Agreement.


                                  ARTICLE III

                    REPRESENTATIONS AND WARRANTIES OF PARENT

                 Parent represents and warrants to the Company as follows:

                 Section 3.1  Organization, Standing and Power.  Parent is a
corporation duly organized, validly existing and in good standing under the
laws of the State of Delaware and has the requisite corporate power and
authority to carry on its business as now being conducted.

                 Section 3.2  Authority; Non-Contravention.  Parent has all
requisite power and authority to enter into this Agreement and to consummate
the transactions contemplated hereby.  The execution and delivery of this
Agreement by Parent and the consummation by Parent of the transactions
contemplated hereby have been duly authorized by all necessary corporate action
on the part of Parent.  This Agreement has been duly executed and delivered by
Parent and (assuming the valid authorization, execution and delivery of this
Agreement by the Company) constitutes a valid and binding obligation of Parent
enforceable against Parent in accordance with its terms.  The execution and
delivery of this Agreement do not, and the consummation of the transactions
contemplated hereby and compliance with the provisions hereof will not,
conflict with, or result in any violation of, or default (with or without
notice or lapse of time, or both) under, or give rise to a right of
termination, cancellation or acceleration of any obligation or to the loss of a
material benefit under, or result in the creation of any lien, security
interest, charge or encumbrance upon any of the properties or assets of Parent
or any of its Subsidiaries under, any provision of (i) the Certificate of
Incorporation or Bylaws of Parent or any provision of the comparable charter or
organization documents of any of its Subsidiaries, (ii) any loan or credit
agreement, note, bond, mortgage, indenture, lease or other agreement,
instrument, permit, concession, franchise or license applicable to Parent or
any of its Subsidiaries or (iii) any judgment, order, decree, statute, law,
ordinance, rule or regulation applicable to Parent or any of its Subsidiaries
or any of their respective properties or assets, other than, in the case of
clauses (ii) or (iii), any such conflicts, violations, defaults, rights, liens,
security interests, charges or encumbrances  that, individually or in the
aggregate, would not have a Material Adverse Effect on Parent, materially
impair the ability of Parent to perform its obligations hereunder or prevent
the consummation of any of the transactions contemplated hereby.  No filing or
registration with, or authorization, consent or





                                      -10-
<PAGE>   15
approval of, any domestic (federal and state), foreign or supranational court,
commission, governmental body, regulatory or administrative agency, authority
or tribunal (a "Governmental Entity") is required by or with respect to Parent
or any of its Subsidiaries in connection with the execution and delivery of
this Agreement by Parent or is necessary for the consummation of the Offer, the
Merger and the other transactions contemplated by this Agreement, except for
(i) in connection, or in compliance, with the Exchange Act, (ii) the filing of
the Certificate of Merger with the Secretary of State of the State of Delaware
and appropriate documents with the relevant authorities of other states in
which the Company is qualified to do business, (iii) the filing required with
the California Department of Corporations (the "DOC") and the Office of the
Commissioner of Insurance of the State of Wisconsin (the "OCI") in connection
with, and the approval of the DOC and the OCI of, the change-in-control
contemplated by this Agreement and any other required filings with or approvals
by state agencies regulating corporations or insurance companies applicable to
the transactions contemplated hereby (collectively, such filings and approvals
are the "Insurance Approvals"), (iv) such filings and consents, if any, as may
be required under any environmental, health or safety law or regulation
pertaining to any notification, disclosure or required approval triggered by
the Offer, the Merger or the transactions contemplated by this Agreement, (v)
such filings, if any, as may be required in connection with the Gains Taxes
described in Section 7.7, (vi) such filings and approvals as may be required
under the Hart-Scott-Rodino Improvements Act of 1976, as amended (the
"Improvements Act"), and (vii) such other consents, orders, authorizations,
registrations, declarations and filings the failure of which to be obtained or
made would not, individually or in the aggregate, have a Material Adverse
Effect on Parent, materially impair the ability of Parent to perform its
obligations hereunder or prevent the consummation of any of the transactions
contemplated hereby.  For purposes of this Agreement (a) "Material Adverse
Change" or "Material Adverse Effect" means, when used with respect to Parent,
Sub or the Company, as the case may be, any change or effect, either
individually or in the aggregate, that is or may be materially adverse to the
business, assets, liabilities, properties, condition (financial or otherwise)
or results of operations of all or any material part of Parent and its
Subsidiaries taken as a whole, Sub, or the Company and its Subsidiaries taken
as a whole, as the case may be, and (b) "Subsidiary" means any significant
corporation, partnership, joint venture or other legal entity of which Parent
or the Company, as the case may be (either alone or through or together with
any other Subsidiary), owns, directly or indirectly, 50% or more of the stock
or other equity interests the holders of which are generally entitled to vote
for the election of the board of directors or other governing body of such
corporation or other legal entity.  Except for the approval by the DOC and the
OCI (or any other regulatory authority having





                                      -11-
<PAGE>   16
jurisdiction over the Company) required by virtue of the change-in-control of
the Company contemplated by this Agreement, no approval by any state insurance
regulatory agency pursuant to any insurance statute or regulation is required
in order to consummate the transactions contemplated by this Agreement.

                 Section 3.3  Offer Documents and Proxy Statement.  None of the
information to be supplied by Parent or Sub for inclusion or incorporation by
reference in the Offer Documents, the Schedule 14D-9, the information
statement, if any, filed by the Company in connection with the Offer pursuant
to Rule 14F-1 promulgated under the Exchange Act (the "Information Statement"),
or the proxy statement (together with any amendments or supplements thereto,
the "Proxy Statement") relating to the Stockholder Meeting (as defined in
Section 7.1) will (i) in the case of the Offer Documents, the Schedule 14D-9
and the Information Statement, at the respective time such documents are filed
with the SEC or first published, sent or given to the Company's stockholders,
or (ii) in the case of the Proxy Statement, at the time of the mailing of the
Proxy Statement and at the time of the Stockholder Meeting, contain any untrue
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they are made, not misleading.  If at any time
prior to the purchase of shares of Common Stock pursuant to the Offer there
shall occur any event with respect to Parent, its officers and directors or any
of its Subsidiaries which is required to be described in the Offer Documents,
such event shall be so described, and an amendment or supplement shall be
promptly filed with the SEC and, as required by law, disseminated to the
stockholders of the Company.

                 Section 3.4  Financing.  Parent has on hand or available
through committed bank facilities all of the funds necessary to consummate the
Offer and the Merger and the transactions contemplated hereby on a timely basis
and to pay any and all related fees and expenses.

                 Section 3.5  Brokers.  No broker, investment banker or other
person, other than Smith Barney Inc., the fees and expenses of which will be
paid by Parent, is entitled to any broker's, finder's or other similar fee or
commission in connection with the transactions contemplated by this Agreement
based upon arrangements made by or on behalf of Parent or Sub.


                                   ARTICLE IV

                 REPRESENTATIONS AND WARRANTIES OF THE COMPANY

                 The Company represents and warrants to Parent and Sub as
follows:





                                      -12-
<PAGE>   17

                 Section 4.1   Organization, Standing and Power.  The Company
and each of its Subsidiaries is a corporation duly organized, validly existing
and in good standing under the laws of the jurisdiction in which it is
incorporated and has the requisite corporate power and authority to carry on
its business as now being conducted.  The Company and each of its Subsidiaries
is duly qualified to do business, and is in good standing, in each jurisdiction
where the character of its properties owned or held under lease or the nature
of its activities makes such qualification necessary, except where the failure
to be so qualified would not, individually or in the aggregate, have a Material
Adverse Effect on the Company.

                 Section 4.2  Capital Structure.  The authorized capital stock
of the Company consists of 50,000,000 shares of Common Stock and 1,000,000
shares of Preferred Stock, par value $5.00 per share ("Preferred Stock").  At
the close of business on August 7, 1995, (i) 17,063,893 shares of Common Stock
were issued and outstanding, (ii) 653,700 shares of Common Stock were reserved
for issuance upon the exercise of outstanding Company Stock Options (as defined
in Section 7.4) and (iii) 4,562 shares of Common Stock were held by the Company
in its treasury.  As of the date hereof there are no shares of Preferred Stock
outstanding.  There are no outstanding stock appreciation rights ("SARs") which
were not granted in tandem with a related Company Stock Option.  All
outstanding shares of capital stock of the Company are validly issued, fully
paid and nonassessable (except to the extent Section 180.0622(2)(b) of the
Wisconsin Business Corporation Law may be applicable) and not subject to
preemptive rights.  Except for 653,700 Company Stock Options (as defined
herein) under the 1994 Stock Incentive Plan ("the Stock Plan"), there are no
options, warrants, rights, commitments, agreements, arrangements or
undertakings of any kind to which the Company or any of its Subsidiaries is a
party or by which any of them is bound obligating the Company or any of its
Subsidiaries to issue, deliver or sell, or cause to be issued, delivered or
sold, additional shares of capital stock or other voting securities of the
Company or of any of its Subsidiaries.  No shares of the Company's capital
stock have been issued other than pursuant to the exercise of stock options
already in existence on such date since August 7, 1995.  The Company has not
granted any stock options for any capital stock of the Company since August 7,
1995.  The Company has not adopted a shareholder's rights or a similar plan.

                 Section 4.3  Subsidiaries.  All of the outstanding capital
stock of, or ownership interests in, each Subsidiary of the Company is owned by
the Company, directly or indirectly.  Except as set forth in the letter from
the Company to Parent dated the date hereof, which letter relates to this
Agreement and is designated therein as the Company Disclosure Letter (the
"Company Disclosure Letter"), all of such capital stock or ownership interest
is owned by the Company, directly or





                                      -13-
<PAGE>   18
indirectly, free and clear of any security interests, liens, claims, pledges,
options, rights of first refusal, agreements, charges or other encumbrances of
any nature ("Liens") or any other limitation or restriction (including any
restriction on the right to vote or sell the same, except as may be provided as
a matter of law).  There are no (i) securities of the Company or any of its
Subsidiaries convertible into or exchangeable for, (ii) options or other rights
to acquire from the Company or any of its Subsidiaries, or (iii) other
contracts, understandings, arrangements or obligations (whether or not
contingent) providing for the issuance or sale, directly or indirectly, in each
case, with respect to any capital stock or other ownership interests in, or any
other securities of, any Subsidiary of the Company.  There are no outstanding
contractual obligations of the Company or any of its Subsidiaries to
repurchase, redeem or otherwise acquire any outstanding shares of capital stock
or other ownership interest in any Subsidiary of the Company nor are there any
irrevocable proxies with respect to any shares of the capital stock of any of
the Company's Subsidiaries.  All of the shares of capital stock of each
Subsidiary of the Company are validly existing, fully paid and non-assessable
(except to the extent Section 180.0622(2)(b) of the Wisconsin Business
Corporation Law may be applicable).  Except for statutory and regulatory
restrictions, there are no restrictions which prevent or limit the payment of
dividends by any of the Company's Subsidiaries.

                 Section 4.4  Other Interests.  Except for the Company's
interest in its Subsidiaries, investments in ordinary course consistent with
past practice, and as set forth in the Company Disclosure Letter, neither the
Company nor its Subsidiaries owns directly or indirectly any interest or
investment (whether equity or debt) in, nor is the Company or any of its
Subsidiaries subject to any obligation or requirement to provide for or to make
any investment (in the form of a loan, capital contribution or otherwise) to or
in, any corporation, partnership, joint venture, business, trust or entity.

                 Section 4.5  Authority; Non-Contravention.  The Board of
Directors of the Company has declared the Merger advisable and the Company has
all requisite power and authority to enter into this Agreement and, subject to
approval of the Merger by the stockholders of the Company (if required), to
consummate the transactions contemplated hereby.  The execution and delivery of
this Agreement by the Company and the consummation by the Company of the
transactions contemplated hereby have been duly authorized by all necessary
corporate action on the part of the Company, subject to such approval of the
Merger by the stockholders of the Company (if required).  This Agreement has
been duly executed and delivered by the Company and (assuming the valid
authorization, execution and delivery of this Agreement by Parent and Sub)
constitutes a valid and binding obligation of the Company enforceable against
the Company in accordance with its terms.  Except as set forth in the Company
SEC Documents (as hereinafter





                                      -14-
<PAGE>   19
defined) or the Company Disclosure Letter, the execution and delivery of this
Agreement do not, and the consummation of the transactions contemplated hereby
and compliance with the provisions hereof will not, conflict with, or result in
any violation of, or default (with or without notice or lapse of time, or both)
under, or give rise to a right of termination, cancellation or acceleration of
any obligation or to the loss of a material benefit under, or result in the
creation of any lien, security interest, charge or encumbrance upon any of the
properties or assets of the Company or any of its Subsidiaries under, any
provision of (i) the Certificate of Incorporation or Bylaws of the Company
(true and complete copies of which as of the date hereof have been delivered to
Parent) or any provision of the comparable charter or organization documents of
any of its Subsidiaries, (ii) any loan or credit agreement, note, bond,
mortgage, indenture, lease or other agreement, instrument, permit, concession,
franchise or license applicable to the Company or any of its Subsidiaries or
(iii) any judgment, order, decree, statute, law, ordinance, rule or regulation
applicable to the Company or any of its Subsidiaries or any of their respective
properties or assets, other than, in the case of clause (ii) or (iii), any such
conflicts, violations, defaults, rights, liens, security interests, charges or
encumbrances that, individually or in the aggregate, would not have a Material
Adverse Effect on the Company, materially impair the ability of the Company to
perform its obligations hereunder or prevent the consummation of any of the
transactions contemplated hereby.  No filing or registration with, or
authorization, consent or approval of, any Governmental Entity is required by
or with respect to the Company or any of its Subsidiaries in connection with
the execution and delivery of this Agreement by the Company or the consummation
by the Company of the transactions contemplated hereby, except for (i) in
connection or in compliance with the provisions of the Exchange Act, (ii) the
filing of the Certificate of Merger with the Secretary of State of the State of
Delaware and appropriate documents with the relevant authorities of other
states in which the Company is qualified to do business, (iii) the Insurance
Approvals, (iv) such filings and consents, if any, as may be required under any
environmental, health or safety law or regulation pertaining to any
notification, disclosure or required approval triggered by the Offer, the
Merger or the transactions contemplated by this Agreement, (v) such filings, if
any, as may be required in connection with the Gains Taxes described in Section
7.7, (vi) such filings and approvals as may be required under the Improvements
Act, and (vii) such other consents, orders, authorizations, registrations,
declarations and filings the failure of which to be obtained or made would not,
individually or in the aggregate, have a Material Adverse Effect on the
Company, materially impair the ability of Company to perform its obligations
hereunder or prevent the consummation of any of the transactions contemplated
hereby.  Except for the approval by the DOC and the OCI required by virtue of
the change-in-control of the Company contemplated by this Agreement,





                                      -15-
<PAGE>   20
no approval by any state insurance regulatory agency pursuant to any insurance
statute or regulation is required in order to consummate the transactions
contemplated by this Agreement.

                 Section 4.6  SEC Documents.  (a) Since January 1, 1994, the
Company has filed all documents with the SEC required to be filed under the
Securities Act of 1933, as amended (including the rules and regulations
promulgated thereunder), or the Exchange Act (the "Company SEC Documents").  As
of their respective dates, the Company SEC Documents complied in all material
respects with the requirements of the Securities Act or the Exchange Act, as
the case may be, and none of the Company SEC Documents contained any untrue
statement of a material fact or omitted to state a material fact required to be
stated therein or necessary in order to make the statements therein, in light
of the circumstances under which they were made, not misleading.  The financial
statements of the Company included in the Company SEC Documents comply as to
form in all material respects with applicable accounting requirements and the
published rules and regulations of the SEC with respect thereto, have been
prepared in accordance with generally accepted accounting principles (except,
in the case of unaudited statements, as permitted by Form 10-Q of the SEC)
applied on a consistent basis during the periods involved (except as may be
indicated therein or in the notes thereto) and fairly present the consolidated
financial position of the Company and its consolidated Subsidiaries as at the
dates thereof and the consolidated results of their operations and changes in
financial position for the periods then ended (subject, in the case of
unaudited statements, to normal year-end audit adjustments and to any other
adjustments described therein).

                 (b)  Except as set forth in the Company SEC Documents or the
Company Disclosure Letter, neither the Company nor any of its Subsidiaries has
any liability or obligation of any nature (whether accrued, absolute,
contingent or otherwise) which would be required to be reflected on a balance
sheet, or in the notes thereto, prepared in accordance with generally accepted
accounting principles, except for liabilities and obligations incurred in the
ordinary course of business consistent with past practice since December 31,
1994 which would not, individually or in the aggregate, have a Material Adverse
Effect.

                 Section 4.7  Offer Documents and Proxy Statement.  None of the
information supplied or to be supplied by the Company for inclusion or
incorporation by reference in the Offer Documents or the Schedule 14D-9, the
Information Statement, if any, the Proxy Statement, if any, or any amendment or
supplement thereto, will (i) in the case of the Offer Documents, the Schedule
14D-9 and the Information Statement, at the respective times such documents are
filed with the SEC or first published, sent or given to the Company's
stockholders, or (ii) in the case of the Proxy Statement, at the time of the
mailing of the Proxy Statement and at the time of the Stockholder Meeting,
contain any untrue





                                      -16-
<PAGE>   21
statement of a material fact or omit to state any material fact required to be
stated therein or necessary in order to make the statements therein, in the
light of the circumstances under which they are made, not misleading.  If at
any time prior to the Effective Time any event with respect to the Company, its
officers and directors or any of its Subsidiaries should occur which is
required to be described in an amendment of, or a supplement to, the Proxy
Statement or the Offer Documents, such event shall be so described, and such
amendment or supplement shall be promptly filed with the SEC and, as required
by law, disseminated to the stockholders of the Company.  The Proxy Statement
will comply as to form in all material respects with the requirements of the
Exchange Act.

                 Section 4.8  Absence of Certain Events.  Since December 31,
1994, the Company and its Subsidiaries have operated their respective
businesses only in the ordinary course substantially consistent with its
historical practices and, except as disclosed in the Company Disclosure Letter,
there has not occurred (i) any event, occurrence or conditions which,
individually or in the aggregate, has, or is reasonably likely to have, a
Material Adverse Effect on the Company; (ii) any entry into or any commitment
or transaction that, individually or in the aggregate, has or is reasonably
likely to have, a Material Adverse Effect on the Company; (iii) any change by
the Company or any of its Subsidiaries in its accounting methods, principles or
practices; (iv) any amendments or changes in the Certificate of Incorporation
or Bylaws of the Company; (v) any revaluation by the Company or any of its
Subsidiaries of any of their respective assets, including, without limitation,
write-offs of accounts receivable, other than in the ordinary course of the
Company's and its Subsidiaries' businesses consistent with past practices; (vi)
any damage, destruction or loss which resulted in or is reasonably likely to
result in a Material Adverse Effect on the Company; or (vii) except for regular
quarterly dividends of $0.15 per share, any declaration, setting aside or
payment of any dividend or other distribution with respect to any shares of
capital stock of the Company, or any repurchase, redemption or other
acquisition by the Company or any of its Subsidiaries of any outstanding shares
of capital stock or other securities of, or other ownership interests in, the
Company.

                 Section 4.9  Litigation.  Except as disclosed in the Company
Disclosure Letter, there are no actions, suits or proceedings pending against
the Company or its Subsidiaries or, to the knowledge of the Company, threatened
against the Company or its Subsidiaries, at law or in equity, or before or by
any federal or state commission, board, bureau, agency, regulatory or
administrative instrumentality or other Governmental Entity or any arbitrator
or arbitration tribunal, that are reasonably likely to have a Material Adverse
Effect on the Company, and, to the knowledge of the Company, no development has
occurred with respect to any pending or threatened action, suit or proceeding





                                      -17-
<PAGE>   22
that is reasonably likely to result in a Material Adverse Effect on the Company
or would prevent or delay the consummation of the transactions contemplated
hereby.

                 Section 4.10  Compliance with Applicable Law.  The Company and
its Subsidiaries hold, and at all required times have held, all permits,
licenses, variances, exceptions, orders and approvals of all Governmental
Entities necessary for the lawful conduct of their respective businesses (the
"Company Permits"), except for failures to hold such permits, licenses,
variances, exemptions, orders and approvals which would not, individually or in
the aggregate, have a Material Adverse Effect on the Company from and after the
date of this Agreement.  The Company and its Subsidiaries are, and at all times
have been, in compliance with the terms of the Company Permits, except where
the failure so to comply would not have a Material Adverse Effect on the
Company.  The businesses of the Company and its Subsidiaries are not being, and
have not been, conducted in violation of any law, ordinance or regulation of
any Governmental Entity except for violations or possible violations which
individually or in the aggregate do not and will not have a Material Adverse
Effect on the Company.  Except as set forth in the Company Disclosure Letter,
no investigation or review by any Governmental Entity with respect to the
Company or any of its Subsidiaries is pending or, to the knowledge of the
Company, threatened, nor, to the knowledge of the Company, has any Governmental
Entity indicated an intention to conduct the same, other than, in each case,
those which the Company reasonably believes will not have a Material Adverse
Effect on the Company.

                 Section 4.11  Employee Plans.  (a) The Company and each of its
Subsidiaries have complied with and performed all contractual obligations and
all obligations under applicable federal, state and local laws, rules and
regulations (domestic and foreign) required to be performed by it under or with
respect to any of the Company Benefit Plans (as defined below) or any related
trust agreement or insurance contract, other than where the failure to so
comply or perform will not have, nor is reasonably likely to have, a Material
Adverse Effect on the Company.  All contributions and other payments required
to be made by the Company and its Subsidiaries to any Company  Benefit Plan or
Multiemployer Plans (as defined below), prior to the date hereof have been
made, other than where the failure to so contribute or make payments will not
have, nor is reasonably likely to have, a Material Adverse Effect on the
Company and all accruals or contributions required to be made under any Company
Benefit Plan or Multiemployer Plan have been made.  There is no claim, dispute,
grievance, charge, complaint, restraining or injunctive order, litigation or
proceeding pending, threatened or anticipated (other than routine claims for
benefits) against or relating to any Company Benefit Plan or against the assets
of any Company Benefit Plan, which will have, or is reasonably likely to have,
a Material Adverse Effect on the Company.  Neither the





                                      -18-
<PAGE>   23
Company nor any of its Subsidiaries has communicated generally to employees or
specifically to any employee regarding any future increase of benefit levels
(or future creations of new benefits) with respect to any Company Benefit Plan
beyond those reflected in the Company Benefit Plans, which benefit increases or
creations, either individually or in the aggregate, will have or are reasonably
likely to have, a Material Adverse Effect on the Company.  Neither the Company
nor any of its Subsidiaries presently sponsors, maintains, contributes to, nor
is the Company or its Subsidiaries required to contribute to, nor has the
Company or any of its Subsidiaries ever sponsored, maintained, contributed to,
or been required to contribute to, any employee pension benefit plan within the
meaning of section 3(2) of the Employee Retirement Income Security Act of 1974,
as amended ("ERISA"), or any multiemployer plan within the meaning of section
3(37) or 4001(a)(3) of ERISA, other than the Company's profit sharing plan
which is qualified under Section 401 of the Internal Revenue Code of 1986, as
amended.

                 (b)  Neither the Company nor any of its Subsidiaries has
incurred, nor has any event occurred which has imposed or is reasonably likely
to impose upon the Company or any of its Subsidiaries, any withdrawal liability
(partial or complete) in respect of any multiemployer plan (within the meaning
of section 3(37) or 4001(a)(3) of ERISA) (a "Multiemployer Plan"), which
withdrawal liability has not been satisfied or discharged in full or which,
either individually or in the aggregate, will cause, or is reasonably likely to
cause, a Material Adverse Effect on the Company.

                 (c)  Except as set forth in the Company Disclosure Letter, the
execution, delivery and performance of this Agreement and the transactions
contemplated hereby will not result in the imposition of any federal excise tax
with respect to any Company Benefit Plan.

                 (d)  Except as set forth in the Company Disclosure Letter, no
payment or benefit which will or may be made by the Company or any of its
Subsidiaries with respect to any of their employees under any plan or agreement
in effect on the date hereof will be characterized as an "excess parachute
payment" within the meaning of section 280G(b)(1) of the Internal Revenue Code,
as amended.

                 (e)  All awards pursuant to the Company's Management Incentive
Plan are based on the Company's performance and are not discretionary.  The
maximum amount of such awards in respect of 1995 is set forth in the Company
Disclosure Letter.  Since April 1, 1995 (i) the Company's Management Incentive
Plan has not been modified or amended and (ii) the dollar amount of benefits to
which any participant under the Company's Management Incentive Plan is entitled
(or the method of determining entitlement to benefits) has not been modified.





                                      -19-
<PAGE>   24

                 (f)  (i) "Plan" means any bonus, incentive compensation,
deferred compensation, pension, profit sharing, retirement, stock purchase,
stock option, stock ownership, stock appreciation rights, phantom stock, leave
of absence, layoff, vacation, day or dependent care, legal services, cafeteria,
life, health, accident, disability, workers' compensation or other insurance,
severance, separation or other employee benefit plan, practice, policy or
arrangement of any kind, including, but not limited to, any "employee benefit
plan" within the meaning of section 3(3) of ERISA and (ii) "Company Benefit
Plan") means any employee pension benefit plan and any Plan, other than a
Multiemployer Plan, established by the Company or any of its Subsidiaries or to
which the Company or any of its Subsidiaries contributes or has contributed
(including any such Plans not now maintained by the Company or any of its
Subsidiaries or to which the Company or any of its Subsidiaries does not now
contribute, but with respect to which the Company or any of its Subsidiaries
has or may have any liability).

                 Section 4.12  Employment Relations and Agreement.  (a) Except
as would not constitute a Material Adverse Effect on the Company, (i) each of
the Company and its Subsidiaries is, and at all times has been, in compliance
in all material respects with all federal, state or other applicable laws
respecting employment and employment practices, terms and conditions of
employment and wages and hours, and has not and is not engaged in any unfair
labor practice; (ii) no unfair labor practice complaint against the Company or
any of its Subsidiaries is pending before the National Labor Relations Board;
(iii) there is no labor strike, dispute, slowdown or stoppage actually pending
or threatened against or involving the Company or any of its Subsidiaries, (iv)
no representation question exists respecting the employees of the Company or
any of its Subsidiaries; (v) no grievance exists, no arbitration proceeding
arising out of or under any collective bargaining agreement is pending and no
claim therefor has been asserted; (vi) no collective bargaining agreement is
currently being negotiated by the Company or any of its Subsidiaries; and (vii)
the Company and its Subsidiaries taken as a whole have not experienced any
material labor difficulty during the last three years.  There has not been and,
to the knowledge of the Company, there will not be, any change in relations
with employees of the Company or any of its Subsidiaries as a result of the
transactions contemplated by this Agreement which could have a Material Adverse
Effect on the Company.

                 (b)  Except as set forth in the Company Disclosure Letter and
other than employment agreements with Messrs.  William J. Lawson and Gregory H.
Wolf (the "Officer Employment Agreements"), neither the Company nor any of its
Subsidiaries has any written, or to the knowledge of the Company, any binding
oral, employment or severance agreement with any other person.  The copies of
the Officer Employment Agreements previously delivered to Parent are true and
correct and such Officer





                                      -20-
<PAGE>   25
Employment Agreements have not since been amended, modified or rescinded.

                 Section 4.13  Contracts.  Except as set forth in the Company
Disclosure Letter, to the knowledge of the Company, neither the Company nor its
Subsidiaries is a party to, or has any obligation under, any contract or
agreement, written or oral, which contains any covenants currently or
prospectively limiting the freedom of the Company, any of its Subsidiaries or
any of their respective affiliates to engage in any line of business or to
compete with any entity.  Neither the Company nor its Subsidiaries is a party
to, or has any obligation under, any contract or agreement, written or oral,
which contains any covenant currently or prospectively limiting the freedom of
the Company, any of its Subsidiaries or any of their respective affiliates to
engage in any line of business or to compete with any entity and which covenant
would materially impair the ability of Parent and its Subsidiaries (including,
after consummation of the Offer, the Company and its Subsidiaries) to conduct
their business as now anticipated to be conducted in the future.  All contracts
and agreements to which the Company or any of its Subsidiaries is a party or by
which any of their respective assets is bound are valid and binding, in full
force and effect and enforceable against the parties thereto in accordance with
their respective terms, other than (i) such failures to be so valid and
binding, in full force and effect or enforceable which, would not, either
individually or in the aggregate, have, or be reasonably likely to have, a
Material Adverse Effect on the Company, and (ii) subject to applicable
bankruptcy, insolvency, moratorium or other similar laws relating to creditors'
rights and general principles of equity.  There is not under any such contract
or agreement any existing default, or event which, after notice or lapse of
time, or both, would constitute a default, by the Company or any of its
Subsidiaries, or to the Company's knowledge, any other party, except to the
extent such default would not, or would be reasonably likely not to, cause a
Material Adverse Effect on the Company.

                 Section 4.14  Accreditations.  Except as set forth in the
Company Disclosure Schedule, none of the Company or its Subsidiaries has been
denied or failed to obtain any accreditation by any health maintenance
organization or insurance accreditation agency from whom the Company sought
accreditation.

                 Section 4.15  Monthly Business Plans.  The Company has
previously delivered to Parent true and complete copies of monthly business
plans of the Company for each month through December 1995 ("Monthly Plans").

                 Section 4.16  State Takeover Statutes.  Pursuant to Article
Tenth of the Company's Certificate of Incorporation, Section 203 of the DGCL is
inapplicable to the transactions contemplated by this Agreement.





                                      -21-
<PAGE>   26

                 Section 4.17  Taxes.  Except as may be disclosed in the
Company Disclosure Letter, (i) the Company and each Subsidiary have filed all
material Tax Returns required to have been filed on or before the date hereof,
which returns are true and complete in all material respects; (ii) the Company
and each Subsidiary have duly paid or made provision on its books for the
payment of all material Taxes (including material estimated Taxes) which are
due and payable on or before the date hereof, taking into account applicable
extensions to pay such Taxes (whether or not shown on any such Tax Returns),
and the Company and each Subsidiary have withheld or collected all material
Taxes they are required to withhold and collect, other than Taxes otherwise
described in this clause (ii) that are being contested by the Company or a
Subsidiary in good faith; (iii) neither the Company nor any Subsidiary has
waived any statute of limitations in respect of material Taxes of the Company
or such Subsidiary; (iv) the Tax Returns referred to in clause (i) relating to
federal and state income Taxes have been examined by the Internal Revenue
Service or the appropriate state taxing authority or the period for assessment
of the Taxes in respect of which such Tax Returns were required to be filed has
expired; (v) no issues that have been raised in writing by the relevant taxing
authority in connection with the examination of the Tax Returns referred to in
clause (i) are currently pending; and (vi) all deficiencies asserted or
assessments made as a result of any examination of the Tax Returns referred to
in clause (i) by a taxing authority have been paid in full.  For purposes of
this Agreement (a) "Tax" (and, with correlative meaning, "Taxes" and "Taxable")
means any federal, state, local or foreign income, gross receipts, property,
sales, use, license, excise, franchise, employment, payroll, premium,
withholding, alternative or added minimum, ad valorem, transfer or excise tax,
or any other tax, custom, duty, governmental fee or other like assessment or
charge of any kind whatsoever, together with any interest or penalty, imposed
by any governmental authority, and (b) "Tax Return" means any return, report or
similar statement required to be filed with respect to any Tax (including any
attached schedules), including, without limitation, any information return,
claim for refund, amended return or declaration of estimated Tax.

                 Section 4.18  Brokers.  No broker, investment banker or other
person, other than Morgan Stanley & Co. Incorporated, the fees and expenses of
which will be paid by the Company, is entitled to any broker's, finder's or
other similar fee or commission in connection with the transactions
contemplated by this Agreement based upon arrangements made by or on behalf of
the Company, which arrangements provide for the payment to Morgan Stanley & Co.
Incorporated of a fee of $3,910,000 and expenses in connection with the
transactions contemplated by this Agreement, and do not bind Parent and its
affiliates (including, after consummation of the Offer, the Company and its
Subsidiaries) other than with respect to indemnification and contribution and
the payment of such fees and expenses.





                                      -22-
<PAGE>   27


                                   ARTICLE V

                  REPRESENTATIONS AND WARRANTIES REGARDING SUB

                 Parent and Sub jointly and severally represent and  warrant to
the Company as follows:

                 Section 5.1  Organization and Standing.  Sub is a corporation
duly organized, validly existing and in good standing under the laws of the
State of Delaware.  Sub was organized solely for the purpose of acquiring the
Company engaging in the transactions contemplated by this Agreement and has not
engaged in any business since it was incorporated which is not in connection
with the acquisition of the Company and this Agreement.

                 Section 5.2  Capital Structure.  The authorized capital stock
of Sub consists of 1,000 shares of common stock, par value $.01 per share, all
of which are validly issued and outstanding, fully paid and nonassessable and
are owned by Parent free and clear of all Liens.

                 Section 5.3  Authority; Non-Contravention.  Sub has the
requisite power and authority to enter into this Agreement and to consummate
the transactions contemplated hereby.  The execution and delivery of this
Agreement, the performance by Sub of its obligations hereunder and the
consummation of the transactions contemplated hereby have been duly authorized
by its Board of Directors and Parent as its sole stockholder, and, except for
the corporate filings required by state law, no other corporate proceedings on
the part of Sub are necessary to authorize this Agreement and the transactions
contemplated hereby.  This Agreement has been duly and validly executed and
delivered by Sub and (assuming the due authorization, execution and delivery
hereof by the Company) constitutes a valid and binding obligation of Sub
enforceable against Sub in accordance with its terms.  The execution and
delivery of this Agreement do not, and the consummation of the transactions
contemplated hereby and compliance with the provisions hereof will not,
conflict with, or result in any violation of, or default (with or without
notice or lapse of time, or both) under, or give rise to a right of
termination, cancellation or acceleration of any obligation or to the loss of a
material benefit under, or result in the creation of any lien, security
interest, charge or encumbrance upon any of the properties or assets of Sub
under, any provision of (i) the Certificate of Incorporation or Bylaws of Sub,
(ii) any loan or credit agreement, note, bond, mortgage, indenture, lease or
other agreement, instrument, permit, concession, franchise or license
applicable to Sub or (iii) any judgment, order, decree, statute, law,
ordinance, rule or regulation applicable to Sub or any of its properties or
assets, other than, in the case of clauses (ii) or (iii), any such conflicts,
violations, defaults, rights,





                                      -23-
<PAGE>   28
liens, security interests, charges or encumbrances that, individually or in the
aggregate, would not have a Material Adverse Effect on Sub, materially impair
the ability of Sub to perform its obligations hereunder or prevent the
consummation of any of the transactions contemplated hereby.


                                   ARTICLE VI

                   COVENANTS RELATING TO CONDUCT OF BUSINESS

                 Section 6.1  Conduct of Business by the Company Pending the
Merger.  Except as otherwise expressly contemplated by this Agreement or as
described in the Company Disclosure Letter, during the period from the date of
this Agreement through the Effective Time, the Company shall, and shall cause
its Subsidiaries to, in all material respects carry on their respective
businesses in, and not enter into any material transaction other than in
accordance with, the regular and ordinary course and, to the extent consistent
therewith, use its reasonable best efforts to preserve intact their current
business organizations, keep available the services of their current officers
and employees and preserve their relationships with customers, suppliers and
others having business dealings with them.  Without limiting the generality of
the foregoing, and, except as otherwise expressly contemplated by this
Agreement or as described in the Company Disclosure Letter, the Company shall
not, and shall not permit any of its Subsidiaries to, without the prior written
consent of Parent:

                 (a)  (x) declare, set aside or pay any dividends on, or make
         any other actual, constructive or deemed distributions in respect of,
         any of its capital stock, or otherwise make any payments to
         stockholders of the Company in their capacity as such, other than (1)
         dividends declared prior to the date of this Agreement, and (2)
         dividends payable to the Company declared by any of the Company's
         Subsidiaries, (y) split, combine or reclassify any of its capital
         stock or issue or authorize the issuance of any other securities in
         respect of, in lieu of or in substitution for shares of its capital
         stock or (z) purchase, redeem or otherwise acquire any shares of
         capital stock of the Company or any of its Subsidiaries or any other
         securities thereof or any rights, warrants or options to acquire any
         such shares or other securities;

                 (b)  issue, deliver, sell, pledge, dispose of or otherwise
         encumber any shares of its capital stock, any other voting securities
         or equity equivalent or any securities convertible into, or any
         rights, warrants or options to acquire, any such shares, voting
         securities or convertible securities or equity equivalent (other than,
         in the case of the Company, the issuance of Common Stock during





                                      -24-
<PAGE>   29
         the period from the date of this Agreement through the Effective Time
         upon the exercise of Company Stock Options outstanding (as set forth
         in Section 4.2) on the date of this Agreement in accordance with their
         current terms;

                 (c)  amend its charter or bylaws;

                 (d)  acquire or agree to acquire by merging or consolidating
         with, or by purchasing a substantial portion of the assets of or
         equity in, or by any other manner, any business or any corporation,
         partnership, association or other business organization or division
         thereof or otherwise acquire or agree to acquire any assets, in each
         case that are material, individually or in the aggregate, to the
         Company and its Subsidiaries taken as a whole;

                 (e)  sell, lease or otherwise dispose of or agree to sell,
         lease or otherwise dispose of, any of its assets that are material,
         individually or in the aggregate, to the Company and its Subsidiaries
         taken as a whole;

                 (f)  incur any indebtedness for borrowed money or guarantee
         any such indebtedness or issue or sell any debt securities or
         guarantee any debt securities of others, except for borrowings or
         guarantees incurred in the ordinary course of business consistent with
         past practice, or make any loans, advances or capital contributions
         to, or investments in, any other person, other than to the Company or
         any wholly owned Subsidiary of the Company and other than in the
         ordinary course of business consistent with past practice;

                 (g)  alter through merger, liquidation, reorganization,
         restructuring or in any other fashion the corporate structure or
         ownership of any Subsidiary of the Company;

                 (h)  enter into or adopt or amend any existing severance plan,
         agreement or arrangement or, other than in the ordinary course of
         business, enter into or amend any employee benefit plan (including
         without limitation, the Stock Plan) or employment or consulting
         agreement except (x) as permitted by Section 7.11 or (y) with respect
         to employees that are not executive officers or directors,
         compensation increases associated with promotions and regular reviews
         in the ordinary course of business consistent with past practices; or

                 (i)  waive, amend or allow to lapse any term or condition of
         any confidentiality or "standstill" agreement to which the Company is
         a party.

During the period from the date of this Agreement through the Effective Time,
(i) as requested by Parent, the Company shall





                                      -25-
<PAGE>   30
confer on a regular basis with one or more representatives of Parent with
respect to material operational matters; (ii) the Company shall, within 20 days
following each fiscal month, deliver to Parent financial statements, including
an income statement and balance sheet for such month, together with a statement
reconciling differences between the projected results of operations for such
month set forth in the applicable Monthly Plan and the actual results of
operations set forth in the financial statements delivered pursuant to this
clause (ii); and (iii) upon the knowledge of the Company of any Material
Adverse Change on the Company, any material litigation or material governmental
complaints, investigations or hearings (or communications indicating that the
same may be contemplated), or the breach in any material respect of any
representation or warranty contained herein, the Company shall promptly notify
Parent thereof.

                 Section 6.2  Acquisition Proposals.  From and after the date
of this Agreement and prior to the Effective Time, except as provided below,
the Company agrees (a) that neither the Company nor its Subsidiaries shall, and
the Company shall direct and use its reasonable best efforts to cause its
officers, directors, employees and authorized agents and representatives
(including, without limitation, any investment banker, attorney or accountant
retained by it or any of its Subsidiaries) not to, initiate, solicit or
encourage, directly or indirectly, any inquiries or the making or
implementation of any proposal or offer (including, without limitation, any
proposal or offer to its stockholders) with respect to a merger, acquisition,
consolidation or similar transaction involving, or any purchase of all or any
significant portion of the assets or any equity securities of, the Company or
its Subsidiaries (any such proposal or offer being hereinafter referred to as
an "Acquisition Proposal") or engage in any negotiations concerning, or provide
any confidential information or data to, or have any discussions with, any
person relating to an Acquisition Proposal, or otherwise facilitate any effort
or attempt to make or implement an Acquisition Proposal; (b) that it will
immediately cease and cause to be terminated any existing activities,
discussions or negotiations with any parties conducted heretofore with respect
to any of the foregoing and will take the necessary steps to inform the
individuals or entities referred to above of the obligations undertaken in this
Section 6.2; and (c) that it will notify Parent immediately if any such
inquiries or proposals are received by, any such information is requested from,
or any such negotiations or discussions are sought to be initiated or continued
with, it, but need not disclose the identity of the other party or the terms of
its proposals; provided, however, that nothing contained in this Section 6.2
shall prohibit the Board of Directors of the Company from (i) furnishing
information to or entering into discussions or negotiations with, any person or
entity that makes an unsolicited bona fide proposal in writing, not subject to
any financing condition, to acquire the Company pursuant to a merger,





                                      -26-
<PAGE>   31
consolidation, share exchange, purchase of a substantial portion of the assets,
business combination or other similar transaction, if, and only to the extent
that (A) the Board of Directors determines in good faith after consultation
with the Company's outside counsel that such action is required for the Board
of Directors to comply with its fiduciary duties to stockholders imposed by
laws, (B) prior to or concurrently with furnishing such information to, or
entering into discussions or negotiations with, such a person or entity, the
Company provides written notice to Parent to the effect that it is furnishing
information to, or entering into discussions or negotiations with, such a
person or entity, and (C) the Company keeps Parent informed of the status (not
the identity or terms) of any such discussions or negotiations; and (ii) to the
extent applicable, complying with Rule 14e-2 promulgated under the Exchange Act
with regard to an Acquisition Proposal.  Subject to Article IX, nothing in this
Section 6.02 shall (x) permit the Company to terminate this Agreement, (y)
permit the Company to enter into any agreement with respect to an Acquisition
Proposal during the term of this Agreement, or (z) effect any other obligation
of any party under this Agreement.

                 Section 6.3  Conduct of Business of Sub Pending the Merger.
During the period from the date of this Agreement through the Effective Time,
Sub shall not engage in any activities of any nature except as provided in or
contemplated by this Agreement.


                                  ARTICLE VII

                             ADDITIONAL AGREEMENTS

                 Section 7.1  Company Stockholder Approval; Proxy Statement.
(a) If approval of the Merger by the stockholders of the Company is required by
applicable law, the Company shall call a meeting of its stockholders (the
"Stockholder Meeting") for the purpose of voting upon the Merger and shall use
its reasonable best efforts to obtain stockholder approval of the Merger.  The
Stockholder Meeting shall be held as soon as practicable following the purchase
of shares of Common Stock pursuant to the Offer and the  Company will, through
its Board of Directors but subject to the fiduciary duties of its Board of
Directors under applicable law as determined by the Board of Directors in good
faith after consultation with the Company's outside counsel, recommend to its
stockholders the approval of the Merger and not rescind its declaration that
the Merger is advisable.  The record date for the Stockholder Meeting shall be
a date subsequent to the date Parent or Sub becomes a record holder of Common
Stock purchased pursuant to the Offer.

                 (b)  If required by applicable law, the Company will, as soon
as practicable following the expiration of the Offer,





                                      -27-
<PAGE>   32
prepare and file a preliminary Proxy Statement with the SEC and will use its
reasonable best efforts to respond to any comments of the SEC or its staff and
to cause the Proxy Statement to be cleared by the SEC.  The Company will notify
Parent of the receipt of any comments from the SEC or its staff and of any
request by the SEC or its staff for amendments or supplements to the Proxy
Statement or for additional information and will supply Parent with copies of
all correspondence between the Company or any of its representatives, on the
one hand, and the SEC or its staff, on the other hand, with respect to the
Proxy Statement or the Merger.  The Company shall give Parent and its counsel
the opportunity to review the Proxy Statement prior to its being filed with the
SEC and shall give Parent and its counsel the opportunity to review all
amendments and supplements to the Proxy Statement and all responses to requests
for additional information and replies to comments prior to their being filed
with, or sent to, the SEC.  Each of the Company and Parent agrees to use its
reasonable best efforts, after consultation with the other parties hereto to
respond promptly to all such comments of and requests by the SEC.  As promptly
as practicable after the Proxy Statement has been cleared by the SEC, the
Company shall mail the Proxy Statement to the stockholders of the Company.  If
at any time prior to the approval of this Agreement by the Company's
stockholders there shall occur any event that should be set forth in an
amendment or supplement to the Proxy Statement, the Company will prepare and
mail to its stockholders such an amendment or supplement.

                 (c)  The Company shall use its reasonable best efforts to
obtain the necessary approvals by its stockholders of the Merger, this
Agreement and the transactions contemplated hereby.

                 (d)  Parent agrees, subject to applicable law, to cause all
shares of Common Stock purchased pursuant to the Offer and all other shares of
Common Stock owned by Sub or any other Subsidiary of Parent to be voted in
favor of the approval of the Merger.

                 Section 7.2  Access to Information.  The Company shall, and
shall cause each of its Subsidiaries to, afford to Parent, and to Parent's
accountants, counsel, financial advisers and other representatives, reasonable
access and permit them to make such inspections as they may reasonably require
during normal business hours during the period from the date of this Agreement
through the Effective Time to all their respective properties, books,
contracts, commitments and records and, during such period, the Company shall,
and shall cause each of its Subsidiaries to, furnish promptly to Parent (i) a
copy of each report, schedule, registration statement and other document filed
by it during such period pursuant to the requirements of federal or state laws
and (ii) all other information concerning its business, properties and
personnel as Parent may reasonably request.  In no event shall the Company be
requested to supply to





                                      -28-
<PAGE>   33
Parent, or to Parent's accountants, counsel, financial advisors or other
representatives, any information relating to indications of interest from, or
discussions with, any other potential acquirors of the Company which were
received or conducted prior to the date hereof, except to the extent necessary
for use in the Offer Documents, the Schedule 14D-9 and the Proxy Statement.
Except as required by law, Parent will hold, and will cause its affiliates,
associates and representatives to hold, any nonpublic information in confidence
until such time as such information otherwise becomes publicly available and
shall use its reasonable best efforts to ensure that such affiliates,
associates and representatives do not disclose such information to others
without the prior written consent of the Company.  In the event of termination
of this Agreement for any reason, Parent shall promptly destroy all nonpublic
documents so obtained from the Company or any of its Subsidiaries and any
copies made of such documents for Parent.

                 Section 7.3  Fees and Expenses.  (a)  Whether or not the
Merger is consummated, all costs and expenses incurred in connection with this
Agreement and the transactions contemplated hereby shall be paid by the party
incurring such costs and expenses.

                 (b)  In the event that (A) any person (other than Parent or
any of its affiliates) shall have become, prior to the termination of this
Agreement, the beneficial owner of 50% or more of the outstanding shares of
Common Stock, (B) the Offer shall have expired at a time when the Minimum
Condition (as defined in Exhibit A) shall not have been satisfied and at any
time on or prior to nine months after the expiration of the Offer any person
(other than Parent or any of its affiliates) shall acquire beneficial ownership
of 50% or more of the outstanding shares of Common Stock or shall consummate an
Acquisition Proposal, (C) at any time prior to the termination of this
Agreement any person (other than Parent or any of its affiliates) shall
publicly announce any Acquisition Proposal and, at any time on or prior to nine
months after the termination of this Agreement, shall become the beneficial
owner of 50% or more of the outstanding shares of Common Stock or shall
consummate an Acquisition Proposal, or (D) the Company terminates this
Agreement pursuant to Section 9.1(b)(ii), then the Company shall, in the case
of clause (A), (B) or (C), promptly, but in no event later than two business
days after the first of such events to occur, or, in the case of clause (D) at
or prior to the time of such termination, pay Parent $18 million.  If the
Company fails to pay such amount when due in accordance with the immediately
preceding sentence, which failure is finally determined by a court of competent
jurisdiction, Parent shall be entitled to the payment from the Company, in
addition to such amount, of any legal fees and expenses incurred in procuring
such judicial determination.





                                      -29-
<PAGE>   34
                 (c)  In the event the Board of Directors of the Company shall
modify or amend its recommendation of the Offer and/or the Merger in a manner
adverse to Parent or shall withdraw its recommendation of the Offer or shall
recommend any Acquisition Proposal, or shall resolve to do any of the
foregoing, or shall have failed to reject any Acquisition Proposal within 10
business days after receipt by the Company or public announcement thereof, the
Company shall reimburse Parent and Sub (not later than two business days after
submission of statements therefor) for all reasonable, documented cost and
expenses (including, without limitation, all legal, investment banking,
printing, depositary and related fees and expenses, but excluding any internal
allocations of overhead attributable to the Offer, the Merger or the
transactions contemplated by this Agreement); provided, however, that the
amount to be paid to Parent and Sub pursuant to this Section 7.3(c) shall not
exceed $2 million; provided, further, that any amount paid pursuant to this
Section 7.3(c) shall be credited against any amount that may become payable
pursuant to Section 7.3(b); and provided, further, that if the Company has paid
$18 million pursuant to Section 7.3(b) prior to any payment pursuant to this
Section 7.3(c), then no amount shall be payable pursuant to this Section
7.3(c).

                 Section 7.4  Company Stock Options.  (a) The Company shall (i)
terminate the Stock Plan immediately prior to the Effective Time without
prejudice to the holders of Company Stock Options (as hereinafter defined) and
(ii) grant no additional Company Stock Options.

                 (b)  Immediately upon the consummation of the Offer, provided
that a "Change of Control" has occurred under the terms of Stock Plan (which
Parent acknowledges and agrees shall occur upon the purchase of shares of
Common Stock following satisfaction of the Minimum Condition), all outstanding
employee stock options, whether or not then fully exercisable or vested, to
purchase shares of Common Stock (a "Company Stock Option") heretofore granted
under the Stock Plan shall become fully exercisable and vested, and, pursuant
to the terms of the Stock Plan, the Company Stock Options shall, upon their
surrender to the Company by the holders thereof, be cancelled by the Company,
and the holders thereof shall receive a cash payment from the Company in an
amount (if any) equal to the number of shares of Common Stock subject to each
surrendered option multiplied by the difference (if positive) between the
exercise price per share of Common Stock covered by the option and the highest
per share price paid to stockholders of the Company in the Offer; provided,
however, that the making of such payment to any such holder shall be
conditioned on such holder acknowledging the cancellation of all Company Stock
Options held by such holder, including any Company Stock Options as to which
the exercise price equals or exceeds $37.50 (the "Out-of-the-Money Options").
The Company shall use its best efforts to cause each holder of Out-of-the-Money
Options to acknowledge, prior to the purchase of shares of





                                      -30-
<PAGE>   35
Common Stock pursuant to the Offer, the cancellation without consideration
therefor of such holder's Out-of-the-Money Options and to cause each other
holder of Company Stock Options to surrender their Company Stock Options in
accordance with the prior sentence.  Any Company Stock Option not cancelled in
accordance with this paragraph (b) immediately prior to the consummation of the
Offer shall be cancelled at the Effective Time in exchange for an amount in
cash, payable at the Effective Time, equal to the amount which would have been
paid had such Company Stock Option been cancelled immediately prior to the
consummation of the Offer.

                 Section 7.5  Reasonable Best Efforts.  Upon the terms and
subject to the conditions set forth in this Agreement, each of the parties
agrees to use its reasonable best efforts to take, or cause to be taken, all
actions, and to do, or cause to be done, and to assist and cooperate with the
other parties in doing, all things necessary, proper or advisable to consummate
and make effective, in the most expeditious manner practicable, the Merger, and
the other transactions contemplated by this Agreement, including (a) promptly
making their respective filings and thereafter making any other required
submission under the Improvements Act with respect to the Offer and the Merger;
(b) cooperating with one another to prepare and present to OCI and DOC as soon
as practicable all filings and other presentations necessary in connection with
seeking the Insurance Approvals; (c) diligently opposing any objections to,
appeals from or petitions to reconsider or reopen any such approval by persons
not a party to this Agreement; (d) in addition to the foregoing, the obtaining
of all necessary actions or non-actions, waivers, consents and approvals from
Governmental Entities and the making of all necessary registrations and filings
(including filings with Governmental Entities) and the taking of all reasonable
steps as may be necessary to obtain an approval or waiver from, or to avoid an
action or proceeding by any Governmental Entity, (e) the obtaining of all
necessary consents, approvals or waivers from third parties, (f) the defending
of any lawsuits or other legal proceedings, whether judicial or administrative,
challenging this Agreement or the consummation of the transactions contemplated
hereby, including seeking to have any stay or temporary restraining order
entered by any court or other Governmental Entity vacated or reversed, and (g)
the execution and delivery of any additional instruments necessary to
consummate the transactions contemplated by this Agreement; provided, however,
that the Company shall not be under any obligation to take any action to the
extent that the Board of Directors shall conclude in good faith, after
consultation with its outside counsel, that such action could be inconsistent
with the Board of Director's fiduciary obligations under applicable law.

                 Section 7.6  Public Announcements.  Parent and Sub, on the one
hand, and the Company, on the other hand, will consult





                                      -31-
<PAGE>   36
with each other before issuing any press release or otherwise making any public
statements with respect to the transactions contemplated by this Agreement, and
shall not issue any such press release or make any such public statement prior
to such consultation, except as may be required by applicable law or by
obligations pursuant to any listing agreement with any national securities
exchange.

                 Section 7.7  Real Estate Transfer and Gains Taxes.  Parent and
the Company agree that either the Company or the Surviving Corporation will pay
any stamp tax, recording tax, sales tax, use tax, real property transfer or
gains tax, stock transfer tax or similar tax, or any other state or local tax
which is attributable to the transfer of the beneficial ownership of the
Company's or its Subsidiaries real property, if any (collectively, the "Gains
Taxes"), and any penalties or interest with respect to the Gains Taxes, payable
in connection with the consummation of the Offer or the Merger.  The Company
agrees to cooperate with Sub in the filing of any returns with respect to the
Gains Taxes, including supplying in a timely manner a complete list of all real
property interests held by the Company or its Subsidiaries and any information
with respect to such property that is reasonably necessary to complete such
returns.  The portion of the consideration allocable to the real property of
the Company and its subsidiaries shall be determined by Sub or Parent in its
reasonable discretion.  The stockholders of the Company shall be deemed to have
agreed to be bound by the allocation established pursuant to this Section 7.7
in the preparation of any return with respect to the Gains Taxes.

                 Section 7.8  1996 Monthly Plans.  The Company shall prepare,
in a manner (as to substance and timing) consistent with its past practices,
monthly plans of the Company for each of January and February 1996, and,
promptly following such preparation, supply them to Parent; provided, however,
that, in any event, such plans shall be supplied to Parent by November 1, 1995.
If Parent informs the Company in writing by November 13, 1995 that it approves
such plans for purposes of Section 7.13, then they shall be deemed to be
"Monthly Plans" in existence for purposes of Section 7.13.

                 Section 7.9  Indemnification; Directors and Officers
Insurance.  (a) From and after the Effective Time, Parent agrees to, and to
cause the Surviving Corporation to, indemnify and hold harmless all past and
present officers, directors, employees and agents (the "Indemnified Parties")
of the Company and of its Subsidiaries to the full extent such persons may be
indemnified by the Company pursuant to the Company's Certificate of
Incorporation and Bylaws as in effect as of the date hereof for acts and
omissions occurring at or prior to the Effective Time and shall advance
reasonable litigation expenses incurred by such persons in connection with
defending any action arising out of such acts or omissions, provided that such
persons provide the





                                      -32-
<PAGE>   37
requisite affirmations and undertaking, as set forth in the Company's Bylaws
prior to the Effective Time.

                 (b)  Any Indemnified Party will promptly notify the Parent and
the Surviving Corporation of any claim, action, suit, proceeding or
investigation for which such party may seek indemnification under this Section;
provided, however, that the failure to furnish any such notice shall not
relieve Parent or the Surviving Corporation from any indemnification obligation
under this Section except to the extent Parent or the Surviving Corporation is
materially prejudiced thereby.  In the event of any such claim, action, suit,
proceeding, or investigation, (x) the Surviving Corporation will have the right
to assume the defense thereof, and the Surviving Corporation will not be liable
to such Indemnified Parties for any legal expenses of other counsel or any
other expenses subsequently incurred thereafter by such Indemnified Parties in
connection with the defense thereof, except that all Indemnified Parties (as a
group) will have the right to retain one separate counsel, reasonably
acceptable to such Indemnified Party and Parent, at the expense of the
indemnifying party if the named parties to any such proceeding include both the
Indemnified Party and the Surviving Corporation and the representation of such
parties by the same counsel would be inappropriate due to a conflict of
interest between them, (y) the Indemnified Parties will cooperate in the
defense of any such matter, and (z) the Surviving Corporation will not be
liable for any settlement effected without its prior written consent.  In
addition, Parent will provide, or cause the Surviving Corporation to provide,
for a period of not less than six years after the Effective Time, the Company's
current directors and officers an insurance and indemnification policy that
provides coverage for events occurring at or prior to the Effective Time (the
"D&O Insurance") that is no less favorable than the existing policy or, if
substantially equivalent insurance coverage is unavailable, the best available
coverage; provided, however, that Parent and the Surviving Corporation shall
not be required to pay an annual premium for the D&O Insurance in excess of one
and one-half times the last annual premium paid prior to the date hereof, but
in such case shall purchase as much such coverage as possible for such amount.

                 Section 7.10  Employee Benefits.  (a) Until at least December
31, 1996, Parent shall maintain employee benefits and programs for retirees,
officers and employees of the Company (other than Messrs. William J. Lawson and
Gregory H. Wolf, as to whom benefits shall be as set forth in the agreements
now in existence between the Company and such individuals) and its Subsidiaries
that are no less favorable in the aggregate than those being provided to such
retirees, officers and employees on the date hereof (it being understood that
Parent will not be obligated to continue any one or more employee benefits or
programs).  For purposes of eligibility to participate in and vesting in all
benefits provided to retirees, officers and





                                      -33-
<PAGE>   38
employees, retirees, officers and employees of the Company and its Subsidiaries
will be granted their years of service with the Company and its Subsidiaries
and years of service with prior employers to the extent service with prior
employers is taken into account under plans of the Company.  Amounts paid
before the Effective Time by retirees, officers and employees of the Company
under any medical plans of the Company shall after the Effective Time be taken
into account in calculating balances for deductibles and maximum out-of-pocket
limits applicable under the medical plan of Parent for the plan year during
which the Effective Time occurs as if such amounts had been paid under such
medical plan of Parent.

                 (b)  After the Effective Time, Parent shall cause the Company
to maintain for 1995, without modification or amendment, its Management
Incentive Plan for all covered employees.  Parent agrees that the following
principles shall apply for purposes of determining bonuses for 1995 under the
Company's Management Incentive Plan:  (1) only persons who are employees of the
Company or any of its Subsidiaries at the time that bonuses are paid (which
shall not be later than February 28, 1996) and who, at such time, are covered
by such plan shall be eligible to receive such bonuses, except that employees
that are terminated (actually or constructively) without cause prior to the
date that bonuses are paid shall be eligible to receive a pro rata portion of
such bonuses; (2) whether any bonuses are payable under such plan and, if so,
the amounts thereof shall be determined as if the transactions contemplated
hereby had not occurred and the Company had remained an independent,
publicly-owned company through December 31, 1995, taking into account to the
extent reasonably applicable the limitations imposed by Section 6.1(a); and (3)
the timing of payment of any bonuses payable pursuant to clause (2) above shall
be consistent with past practices.  The pro rata portion of an employee's bonus
shall be the amount determined pursuant to the preceding sentence multiplied by
a fraction, the numerator of which shall be the number of days during 1995 for
which such employee was employed by the Company or any of its Subsidiaries and
the denominator of which shall be 365.

                 (c)  The foregoing shall not constitute any commitment,
contract, understanding or guarantee (express or implied) on the part of the
Surviving Corporation of a post-Effective Time employment relationship of any
term or duration or on any terms other than those the Surviving Corporation may
establish.  Employment of any of the employees by the Surviving Corporation
shall be "at will" and may be terminated by the Surviving Corporation at any
time for any reason (subject to any legally binding agreement, or any
applicable laws or collective bargaining agreement, or any arrangement or
commitment).  No provision of this Agreement shall create any third-party
beneficiary with respect to any employee (or dependent thereof)





                                      -34-
<PAGE>   39
of the Company or any of its Subsidiaries in respect of continued employment or
resumed employment.

                 Section 7.11  Severance Policy.  (a)  With respect to any
officer whom the Company Disclosure Letter states is covered by a severance
policy separate from the standard severance policy for the Company's employees
(which separate severance policy is referred to in the Disclosure Letter),
Parent shall maintain such separate policy as in effect on the date hereof,
and, as to all other officers and employees, Parent shall maintain the
Company's standard severance policy as in effect on the date hereof for a
period of at least six months from the Effective Time.

                 (b)  Parent shall honor or cause to be honored all
severance and employment agreements with the Company's officers and employees
to the extent disclosed in the Company Disclosure Letter.

                 (c)  Parent and its Subsidiaries shall provide reasonable and
customary outplacement services ("Outplacement Services") to officers of the
Company and its Subsidiaries who are terminated by the Company as a result of,
or within one year following, the Merger, which Outplacement Services provided
to such officer shall include one-on-one counseling and assistance; provided,
however, that the amount paid by Parent to provide Outplacement Services shall
not exceed $15,000 for any individual officer or $250,000 in the aggregate.

                 Section 7.12  Board Representations.  Promptly upon the
purchase of shares of Common Stock pursuant to the Offer, Parent shall be
entitled to designate such number of directors, rounded up to the next whole
number, on the Board of Directors of the Company as will give Parent, subject
to compliance with Section 14(f) of the Exchange Act and the rule and
regulations promulgated thereunder, representation on the Board of Directors
equal to the product of (a) the total number of directors on the Board of
Directors and (b) the percentage that the number of shares of Common Stock
purchased by Parent bears to the number of shares of Common Stock outstanding,
and the Company shall, upon request by Parent, promptly increase the size of
the Board of Directors and/or exercise its reasonable best efforts to secure
the resignations of such number of directors as is necessary to enable Parent's
designees to be elected to the Board of Directors and shall cause Parent's
designees to be so elected.  The Company shall take, at its expense, all action
required pursuant to Section 14(f) and Rule 14f-1 in order to fulfill its
obligations under this Section 7.12 and shall include in the Schedule 14D-9 or
otherwise timely mail to its stockholders such information with respect to the
Company and its officers and directors as is required by Section 14(f) and Rule
14f-1 in order to fulfill its obligations under this Section 7.12.  Parent will
supply to the Company in writing and be solely responsible for any information





                                      -35-
<PAGE>   40
with respect to itself and its or Parent's nominees, officers, directors and
affiliates required by Section 14(f) and Rule 14f-1.

                 Section 7.13  Certificates.  (a) Until Sub acquires shares of
Common Stock pursuant to the Offer (subject to the limitation set forth in
Section 1.1(a)), the Company shall deliver certificates to Parent and Sub
containing the following information, each certificate being certified by the
Chairman of the Board and the President of the Company as true and correct and
as being prepared in accordance with the provisions of this Section 7.13 and
the Company Disclosure Letter:

                 (x)  No later than the tenth calendar day of each month, (1)
         the number of insured members (the "Members") in the Company's medical
         plans as of the end of the month immediately prior to said month (the
         "Prior Month") and (2) the Adjusted Premiums (as such term is defined
         below) for the period (the "Premium Measurement Period") from July 1,
         1995 through the end of the Prior Month, inclusive; and

                 (y)  No later than the first calendar day of each month, the
         Company's Adjusted Pretax Income (as such term is defined below) for
         the period (the "Pretax Measurement Period") from January 1, 1995
         through the end of the month immediately prior to the Prior Month,
         inclusive.

Notwithstanding the foregoing, if a Monthly Plan does not exist for January or
February 1996, any certificate which is required to provide information as of
or for a period ending January 31 or February 29, 1996 shall provide the
relevant information as of December 31, 1995 or for the period ending December
31, 1995, as the case may be, whether or not an earlier certificate provided
such information as of such date or for such period, it being understood and
agreed that any such later certificate shall take into account any actual
claims experience available through December 31, 1995.  For purposes of the
foregoing, (I) except as otherwise provided, all calculations shall be made in
accordance with generally accepted accounting principles applied on a
consistent basis with the accounting principles used in preparing the Company's
Consolidated Statement of Income for the year ended December 31, 1994 as
included in the Company SEC Documents (the "Income Statement"), (II) except as
otherwise provided, all terms shall have the meanings customarily used for such
terms in the healthcare industry, (III) the term "Adjusted Premiums" shall mean
the Company's consolidated earned premiums (including administrative fees and
any other items of revenue of the type included under the caption
"Administrative fees and other" in the Income Statement) but shall not include
premium reserve adjustments related to reserves which arose prior to July 1,
1995, investment income or realized gains or losses on investments and (IV) the
term "Adjusted Pretax Income" shall mean the Company's consolidated pretax
income as adjusted for certain





                                      -36-
<PAGE>   41
exclusions, adjustments and assumptions set forth in the Company Disclosure
Letter.

                 (b)  Until Sub acquires shares of Common Stock pursuant to the
Offer (subject to the limitations set forth in Section 1.1(a)), on or prior to
the 20th calendar day of each month the Company shall deliver to Parent and Sub
a draft of the certificate (the "Pretax Certificate") referred to in clause (y)
of paragraph (a) of this Section 7.13 which is required to be delivered on the
first day of the following month, accompanied by a report of Ernst & Young, the
Company's independent public accountants, of the type contemplated by Rule
436(d) promulgated under the Securities Act of 1933, as amended, and stating
that the Adjusted Pretax Income included in the draft certificate was
determined in a manner consistent with the methodology set forth in Section
7.13(a) and the Company Disclosure Letter.  The Company agrees to make the
appropriate officers and employees of the Company and its Subsidiaries and
representatives of Ernst & Young available to discuss the draft certificate
with representatives of Parent and Sub, together with Coopers & Lybrand, their
independent public accountants.  Subject to the Company complying with its
obligations pursuant to Section 7.13(a) in a manner which under reasonable
circumstances would permit Parent and Sub to complete their review within the
time period hereinafter provided, Parent and Sub agree to complete their review
and provide the Company with a detailed description of their comments and
proposed modifications within five business days after the receipt of the draft
certificate (which proposed modifications shall, in the reasonable judgment of
the Parent and Sub, be necessary in order for the Adjusted Pretax Income to
have been determined in a manner consistent with the methodology set forth in
Section 7.13(a) hereof and the Company Disclosure Letter).

                 (c)  If the Pretax Certificate is accompanied by a certificate
from Milliman & Robertson (or such other firm acceptable to Parent and Sub)
stating that, in its professional opinion, the medical claims component of
Adjusted Pretax Income included in the Pretax Certificate was determined in a
manner consistent with the methodology set forth in Section 7.13(a), Parent and
Sub shall be bound by such determination but solely as it relates to the
medical claims component of Adjusted Pretax Income.  All fees and expenses of
Milliman and Robertson (or such other firm) shall be paid by the Company.

                 (d)  For purposes of exercising its right to terminate this
Agreement pursuant to Section 9.1(c)(ii), notwithstanding the fact that the
calculations included in the certificates delivered pursuant to this Section
7.13 comply with the thresholds established herein, Parent and Sub have the
right, exercised in good faith, to disagree with any of the calculations made
by the Company in such certificates (except to the extent provided in Section
7.13(c)) and to take any permitted action





                                      -37-
<PAGE>   42
under Section 9.1(c)(ii) had their calculations been included in such
certificates (subject to the obligation of Parent and Sub, in any proceeding
commenced by the Company claiming that Parent and Sub breached their
obligations under this Agreement by improperly exercising their right to
terminate pursuant to Section 9.1(c)(ii), to demonstrate that the Company's
calculations were inaccurate and that, if the calculations were prepared
accurately, Parent and Sub would have had the right to terminate this
Agreement) unless in the case of calculation of Adjusted Pretax Income, (i) the
Company modified its calculation of Adjusted Pretax Income contained in the
corresponding draft certificate to take into account all of the comments
provided to the Company by Parent and Sub, (ii) Parent and Sub acknowledged in
writing to the Company that they had no comments on the calculation of Adjusted
Pretax Income or (iii) Parent and Sub do not comply with their obligations
pursuant to the last sentence of Section 7.13(b).


                                  ARTICLE VIII

                              CONDITIONS PRECEDENT

                 Section 8.1  Conditions to Each Party's Obligation to Effect
the Merger.  The respective obligations of each party to effect the Merger
shall be subject to the fulfillment at or prior to the Effective Time of the
following conditions:

                 (a)  Stockholder Approval.  If approval of the Merger by the
         holders of the Common Stock is required by applicable law, the Merger
         shall have been approved by the requisite vote of such holders.

                 (b)  No Order.  No Governmental Entity or court of competent
         jurisdiction shall have enacted, issued, promulgated, enforced or
         entered any law, rule, regulation, executive order, decree or
         injunction which prohibits or has the effect of prohibiting the
         consummation of the Merger; provided, however, that the Company,
         Parent and Sub shall use their reasonable best efforts to have any
         such order, decree or injunction vacated.


                                   ARTICLE IX

                       TERMINATION, AMENDMENT AND WAIVER

                 Section 9.1  Termination.  This Agreement may be terminated at
any time prior to the Effective Time, whether before or after any approval by
the stockholders of the Company:

                 (a)  by mutual written consent of Parent and the Company;





                                      -38-
<PAGE>   43



                 (b)  by the Company if:

                          (i) the Offer has not been timely commenced (except
         as a result of actions or omissions by the Company) in accordance with
         Section 1.1(a); or

                          (ii)  there is an offer to acquire all of the
         outstanding shares of Common Stock or substantially all of the assets
         of the Company for consideration that provides stockholders of the
         Company a value per share of Common Stock which, in the good faith
         judgment of the Board of Directors of the Company, provides a higher
         value per share than the consideration per share pursuant to the Offer
         or the Merger and the Board of Directors of the Company determines in
         good faith after consultation with the Company's outside counsel that
         the failure to approve such offer would not be consistent with the
         fiduciary duties to stockholders of the Board of Directors of the
         Company; provided, however, that the right to terminate this Agreement
         pursuant to this clause shall not be available (i) if the Company has
         breached in any material respect its obligations under Section 6.2,
         (ii) in respect of an offer that is subject to a financing condition,
         (iii) in respect of an offer involving consideration that is not
         entirely cash or does not permit stockholders to receive the payment
         of the offered consideration in respect of all shares at the same
         time, unless the Board of Directors of the Company has been furnished
         with a written opinion of a nationally recognized investment banking
         firm to the effect that such offer provides a higher value per share
         than the consideration per share pursuant to the Offer or the Merger
         or (iv) if, prior to or concurrently with any purported termination
         pursuant to this clause, the Company shall not have paid the fee
         contemplated by Section 7.3(b).

                          (iii)  there has been a breach by Parent or Sub of
         any representation or warranty that would have a material adverse
         effect on Parent's or Sub's ability to perform its obligations under
         this Agreement and which breach has not been cured within five
         business days following receipt by Parent or Sub of notice of the
         breach; or

                           (iv)  Parent or Sub fails to comply in any material
         respect with any of its material obligations or covenants contained
         herein, including, without limitation, the obligation of Sub to
         purchase shares of Common Stock pursuant to the Offer, unless such
         failure results from a breach of the Company of any obligation,
         representation, or warranty hereunder, which has not been cured within
         five business days following Company's receipt of notice of the
         breach;





                                      -39-
<PAGE>   44


                 (c)  by Parent if:

                          (i) the Board of Directors of the Company shall have
         failed to recommend, or withdrawn, modified or amended in any material
         respect its approval or recommendations of the Offer or the Merger or
         shall have resolved to do any of the foregoing, or shall have failed
         to reject an Acquisition Proposal within 10 business days after
         receipt by the Company or public announcement thereof; or

                          (ii) the information contained in the last
         certificates delivered to Parent and Sub in accordance with Section
         7.13(a) do not satisfy all of the following thresholds:

                          (x) the number of Members are at least 95% of the
                 number of Members forecasted for the end of the applicable
                 month in the Monthly Plans;

                          (y) the Adjusted Premiums are at least 90% of the
                 Adjusted Premiums forecasted for the applicable Premium
                 Measurement Period in the Monthly Plans; and

                          (z) the Adjusted Pretax Income is at least 90% of the
                 Adjusted Pretax Income forecasted for the applicable Pretax
                 Measurement Period in the Monthly Plans; or

                 (d)  by either Parent or the Company if:

                          (i) the Merger has not been effected on or prior to
         the close of business on March 31, 1996; provided, however , that the
         right to terminate this Agreement pursuant to this clause shall not be
         available (y) to Parent if Sub or any affiliate of Sub acquires shares
         of Common Stock pursuant to the Offer, or (z) to any party whose
         failure to fulfill any obligation of this Agreement has been the cause
         of, or resulted in, the failure of the Merger to have occurred on or
         prior to the aforesaid date; or

                          (ii) any court of competent jurisdiction or any
         governmental, administrative or regulatory authority, agency or body
         shall have issued an order, decree or ruling or taken any other action
         permanently enjoining, restraining or otherwise prohibiting the
         transactions contemplated by this Agreement and such order, decree,
         ruling or other action shall have become final and nonappealable; or

                          (iii) upon a vote at a duly held meeting or upon any
         adjournment thereof, the stockholders of the Company shall have failed
         to give any approval required by applicable law; or





                                      -40-
<PAGE>   45

                           (iv) as the result of the failure of any of the
         conditions set forth in Exhibit A hereto, the Offer shall have
         terminated or expired in accordance with its terms without Sub having
         purchased any shares of Common Stock pursuant to the Offer; provided,
         however, that the right to terminate this Agreement pursuant to this
         Section 9.1(d)(iv) shall not be available to any party whose failure
         to fulfill any of its obligations under this Agreement results in the
         failure of any such condition; or

                            (v)  Parent or the Company shall have reasonably
         determined that any Offer condition (other than the Minimum Condition
         (as defined in Exhibit A)) is not capable of being satisfied at any
         time in the future; provided, however , that the right to terminate
         this Agreement pursuant to this clause shall not be available to any
         party whose failure to fulfill any obligation of this Agreement has
         been the cause of, or resulted in, such Offer condition being
         incapable of satisfaction.

                 Section 9.2  Effect of Termination.  In the event of
termination of this Agreement by either Parent or the Company, as provided in
Section 9.1, this Agreement shall forthwith become void and there shall be no
liability hereunder on the part of the Company, Parent or Sub or their
respective officers or directors (except as set forth in the last two sentences
of Section 7.2 and except for Section 7.3, which shall survive the
termination); provided, however, that nothing contained in this Section 9.2
shall relieve any party hereto from any liability for any breach of this
Agreement.

                 Section 9.3  Amendment.  This Agreement may be amended by the
parties hereto, by or pursuant to action taken by their respective Boards of
Directors, at any time before or after any approval of the Merger by the
stockholders of the Company but, after the purchase of shares of common stock
pursuant to the Offer, no amendment shall be made which decreases the Merger
Consideration or which in any way materially adversely affects the rights of
such stockholders, without the further approval of such stockholders.  This
Agreement may not be amended except by an instrument in writing signed on
behalf of each of the parties hereto.

                 Section 9.4  Waiver.  At any time prior to the Effective Time,
the parties hereto may (i) extend the time for the performance of any of the
obligations or other acts of the other parties hereto, (ii) waive any
inaccuracies in the representations and warranties contained herein or in any
document delivered pursuant hereto and (iii) waive compliance with any of the
agreements or conditions contained herein which may legally be waived.  Any
agreement on the part of a party





                                      -41-
<PAGE>   46
hereto to any such extension or waiver shall be valid only if set forth in an
instrument in writing signed on behalf of such party.

                 Section 9.5  Procedure for Termination, Amendment or Waiver.
A termination of this Agreement pursuant to Section 9.1, an amendment of this
Agreement pursuant to Section 9.3 or a waiver pursuant to Section 9.4 shall, in
order to be effective, require (a) in the case of Parent, action by its Board
of Directors or the duly authorized designee of its Board of Directors and (b)
in the case of the Company, action by its Board of Directors.


                                   ARTICLE X

                               GENERAL PROVISIONS

                 Section 10.1  Non-Survival of Representations and Warranties.
None of the representations and warranties in this Agreement or in any
instrument delivered pursuant to this Agreement shall survive the Effective
Time.

                 Section 10.2  Notices.  All notices and other communications
hereunder shall be in writing and shall be deemed given if delivered
personally, sent by overnight courier or telecopied (with a confirmatory copy
sent by overnight courier) to the parties at the following addresses (or at
such other address for a party as shall be specified by like notice):

                 (a)  if to Parent or Sub, to:

                      Humana Inc.
                      The Humana Building
                      500 West Main Street
                      Louisville, Kentucky  40201
                      Attn:  President and Chief Operating Officer

                      with a copy to:

                      Humana Inc.
                      The Humana Building
                      500 West Main Street
                      Louisville, Kentucky  40201
                      Attn:  Senior Vice President and General Counsel

                      and

                      Fried, Frank, Harris, Shriver & Jacobson
                      One New York Plaza
                      New York, New York  10004
                      Attn:  Jeffrey Bagner





                                      -42-
<PAGE>   47

                 (b)  if to the Company, to:

                      EMPHESYS Financial Group, Inc.
                      1100 Employers Boulevard
                      Green Bay, Wisconsin  54344
                      Attn:  Chairman of the Board and
                             Chief Executive Officer

                      with a copy to:

                      EMPHESYS Financial Group, Inc.
                      1100 Employers Boulevard
                      Green Bay, Wisconsin  54344
                      Attn:  Vice President, Secretary and
                             General Counsel

                      and

                      Sidley & Austin
                      One First National Plaza
                      Chicago, Illinois  60603
                      Attn:  Thomas A. Cole and
                             Frederick C. Lowinger

                 Section 10.3  Interpretation.  When a reference is made in
this Agreement to a Section, such reference shall be to a Section of this
Agreement unless otherwise indicated.  The table of contents and headings
contained in this Agreement are for reference purposes only and shall not
affect in any way the meaning or interpretation of this Agreement.  Whenever
the words "include," "includes" or "including" are used in this Agreement, they
shall be deemed to be followed by the words "without limitation."  When the
phrase "knowledge of the Company" is used herein, it shall refer to the actual
knowledge of William J.  Lawson, Gregory H. Wolf, Gail A. Hohenstein, Wayne R.
Micksch, Tod J. Zacharias, David R. Astar, Michael R. Walker, David R. Nelson,
Kenneth J. Fasala, Kenneth E. Roesler, Kirk E. Rothrock and Melissa L. Weaver
M.D.  As used in this Agreement, "business day" shall have the meaning ascribed
thereto in Rule 14d-1(c)(6) under the Exchange Act.

                 Section 10.4  Counterparts.  This Agreement may be executed in
counterparts, all of which shall be considered one and the same agreement and
shall become effective when one or more counterparts have been signed by each
of the parties and delivered to the other parties.

                 Section 10.5  Entire Agreement; No Third-Party Beneficiaries.
This Agreement, including the documents and instruments referred to herein, (a)
constitutes the entire agreement and supersedes all prior agreements and
understandings, both written and oral, among the parties with respect to the
subject matter hereof and (b) except for the provisions of





                                      -43-
<PAGE>   48
Section 7.9, 7.10 and 7.11, is not intended to confer upon any person other
than the parties any rights or remedies hereunder.

                 Section 10.6  Governing Law.  This Agreement shall be governed
by, and construed in accordance with, the laws of the State of Delaware,
regardless of the laws that might otherwise govern under applicable principles
of conflicts of laws thereof.

                 Section 10.7  Assignment.  Neither this Agreement nor any of
the rights, interests or obligations hereunder shall be assigned by any of the
parties without the prior written consent of the other parties, except that Sub
may assign, in its sole discretion, any of or all its rights, interests and
obligations under this Agreement to Parent or to any direct or indirect wholly
owned subsidiary of Parent, but no such assignment shall relieve Sub of any of
its obligations hereunder.  Subject to the preceding sentence, this Agreement
shall be binding upon, inure to the benefit of, and be enforceable by, the
parties and their respective successors and assigns.

                 Section 10.8  Severability.  If any term or other provision of
this Agreement is invalid, illegal or incapable of being enforced by any rule
of law, or public policy, all other conditions and provisions of this Agreement
shall nevertheless remain in full force and effect so long as the economic or
legal substance of the transactions contemplated hereby are not affected in any
manner materially adverse to any party.  Upon such determination that any term
or other provision is invalid, illegal or incapable of being enforced, the
parties shall negotiate in good faith to modify this Agreement so as to effect
the original intent of the parties as closely as possible in a mutually
acceptable manner in order that the transactions be consummated as originally
contemplated to the fullest extent possible.

                 Section 10.9  Enforcement of this Agreement.  The parties
agree that irreparable damage would occur in the event that any of the
provisions of this Agreement were not performed in accordance with their
specific terms or were otherwise breached.  It is accordingly agreed that the
parties shall be entitled to an injunction or injunctions to prevent breaches
of this Agreement and to enforce specifically the terms and provisions hereof
in any court of the United States or any state having jurisdiction, this being
in addition to any other remedy to which they are entitled at law or in equity.

                 Section 10.10  Incorporation of Exhibits.  The Company
Disclosure Letter and all Exhibits and annexes attached hereto and referred to
herein are hereby incorporated herein and made a part hereof for all purposes
as if fully set forth herein.





                                      -44-
<PAGE>   49

                 IN WITNESS WHEREOF, Parent, Sub and the Company have caused
this Agreement to be signed by their respective officers thereunto duly
authorized all as of the date first written above.


                                             HUMANA INC.


                                             By: /s/  Wayne T. Smith
                                                 -------------------------------
                                                Name: Wayne T. Smith
                                                Title: President and Chief 
                                                       Operating Officer


                                             HEW, INC.


                                             By: /s/  Wayne T. Smith
                                                 -------------------------------
                                                Name: Wayne T. Smith
                                                Title: President and Chief 
                                                       Operating Officer


                                             EMPHESYS FINANCIAL GROUP, INC.


                                             By: /s/ William J. Lawson
                                                 -------------------------------
                                                Name: William J. Lawson
                                                Title: Chairman of the Board and
                                                       Chief Executive Officer





                                      -45-
<PAGE>   50
                                   EXHIBIT A

                 Notwithstanding any other term of the Offer or this Agreement,
Parent shall not be required to accept for payment or pay for, subject to any
applicable rules and regulations of the SEC, including Rule 14e-1(c) of the
Exchange Act, any shares of Common Stock not theretofore accepted for payment
or paid for and may terminate or amend the Offer as to such shares of Common
Stock unless (i) there shall have been validly tendered and not withdrawn prior
to the expiration of the Offer that number of shares of Common Stock which
would represent at least a majority of the outstanding shares of Common Stock
on a fully diluted basis (the "Minimum Condition"), (ii) any waiting period
under the Improvements Act applicable to the purchase of shares of Common Stock
pursuant to the Offer shall have expired or been terminated and (iii) all
necessary filings with the DOC and the OCI shall have been completed and each
of the DOC and the OCI shall have issued an order (which order shall not have
been stayed or enjoined) that (x) constitutes a final order approving,
exempting or otherwise authorizing consummation of the Offer and the Merger and
all other transactions contemplated by this Agreement as may require such
authorization and (y) does not impose on the Company, Parent, Sub or any of
their respective affiliates any terms or conditions which in the reasonable
opinion of Parent materially and adversely affect the economic benefits to
Parent of the transactions contemplated by this Agreement.  Furthermore,
notwithstanding any other term of the Offer of this Agreement, Parent shall not
be required to accept for payment or, subject as aforesaid, to pay for any
shares of Common Stock not theretofore accepted for payment or paid for, and
may terminate or amend the Offer if at any time on or after the date of this
Agreement and before the acceptance of such shares of Common Stock for payment
or the payment therefor, any of the following conditions exist or shall occur
and remain in effect:

                 (a)  there shall have been instituted or pending any action or
         proceeding by any governmental, regulatory or administrative agency or
         authority, which (i) seeks to challenge the acquisition by Parent of
         shares of Common Stock pursuant to the Offer, restrain, prohibit or
         delay the making or consummation of the Offer or the Merger, or obtain
         any material damages in connection therewith, (ii) seeks to make the
         purchase of or payment for some or all of the shares of Common Stock
         pursuant to the Offer or the Merger illegal, (iii) seeks to impose
         material limitations on the ability of Parent (or any of its
         affiliates) effectively to acquire or hold, or to require Parent or
         the Company or any of their respective affiliates or subsidiaries to
         dispose of or hold separate, any material portion of the assets or the
         business of Parent and its affiliates taken as a whole or the Company
         and its subsidiaries taken as a whole, or (iv) seeks to impose
         material limitations on the ability of





<PAGE>   51
         Parent (or its affiliates) to exercise full rights of ownership of the
         shares of Common Stock purchased by it, including, without limitation,
         the right to vote the shares purchased by it on all matters properly
         presented to the stockholders of the Company; or

                 (b)  there shall have been promulgated, enacted, entered,
         enforced or deemed applicable to the Offer or the Merger, by any
         state, federal or foreign government or governmental authority or by
         any court, domestic or foreign, any statute, rule, regulation,
         judgment, decree, order or injunction, that could reasonably be
         expected to, in the judgment of Parent, directly or indirectly, result
         in any of the consequences referred to in clauses (i) through (iv) of
         subsection (a) above; or

                 (c)  there shall have occurred (i) any general suspension of
         trading in, or limitation on prices for, securities on any national
         securities exchange or in the over-the-counter market in the United
         States, (ii) the declaration of a banking moratorium or any suspension
         of payments in respect of banks in the United States, (iii) the
         commencement of a war, armed hostilities or other international or
         national calamity directly or indirectly involving the United States
         which would reasonably be expected to have a Material Adverse Effect
         on the Company or prevent (or materially delay) the consummation of
         the Offer, (iv) any limitation (whether or not mandatory) by any
         governmental or regulatory authority on, or any other event which, in
         the reasonable judgment of Parent, is reasonably likely to materially
         adversely affect, the nature or extension of credit or further
         extension of credit by banks or other lending institutions in the
         United States, or, (v) from the date of the Merger Agreement through
         the date of termination or expiration of the Offer, a decline of at
         least 25% in either the Dow Jones Industrial Average or the Standard &
         Poor's 500 Index; or

                 (d)  the Company and Parent shall have reached an agreement or
         understanding that the Offer or the Merger Agreement be terminated or
         the Merger Agreement shall have been terminated in accordance with its
         terms; or

                 (e)  any of the representations and warranties made by the
         Company in the Merger Agreement shall not have been true and correct
         in all material respects when made, or shall thereafter have ceased to
         be true and correct in any material respect as if made as of such
         later date (other than representations and warranties made as of a
         specified date), or the Company shall not in all material respects
         have performed each obligation and agreement and complied with each
         covenant to be performed and complied with by it under the Merger
         Agreement; provided, however, that all





                                      -2-
<PAGE>   52
         references in this Agreement to the phrases "knowledge of the Company"
         and "to the best knowledge of the Company," and variants thereof,
         shall be disregarded for the purposes of determining whether the
         Company shall have breached its representations, warranties and
         covenants resulting in the ability of Parent to terminate this
         Agreement pursuant to this clause (e);

                 (f)  the Company's Board of Directors shall have modified or
         amended its recommendation of the Offer in any manner adverse to
         Parent or shall have withdrawn its recommendation of the Offer, or
         shall have recommended acceptance of any Acquisition Proposal or shall
         have resolved to do any of the foregoing, or shall have failed to
         reject any Acquisition Proposal within 10 business days after receipt
         of the Company or public announcement thereof; or

                 (g)  (i) any corporation, entity or "group" (as defined in
         Section 13(d)(3) of the Exchange Act) ("person"), other than Parent,
         shall have acquired beneficial ownership of 50% or more of the
         outstanding shares of Common Stock, or shall have been granted any
         options or rights, conditional or otherwise, to acquire a total of 50%
         or more of the outstanding shares of Common Stock; (ii) any new group
         shall have been formed which beneficially owns 50% or more of the
         outstanding shares of Common Stock; or (iii) any person (other than
         Parent or one or more of its affiliates) shall have entered into an
         agreement in principle or definitive agreement with the Company with
         respect to a tender or exchange offer for any shares of Common Stock
         or a merger, consolidation or other business combination with or
         involving the Company.

                 The foregoing conditions are for the sole benefit of Parent
and may be asserted by Parent regardless of the circumstances giving rise to
any such condition and may be waived by Parent, in whole or in part, at any
time and from time to time, in the sole discretion of Parent.  The failure by
Parent at any time to exercise any of the foregoing rights will not be deemed a
waiver of any right, the waiver of such right with respect to any particular
facts or circumstances shall not be deemed a waiver with respect to any other
facts or circumstances, and each right will be deemed an ongoing right which
may be asserted at any time and from time to time.

                 Should the Offer be terminated pursuant to the foregoing
provisions, all tendered shares of Common Stock not theretofore accepted for
payment shall forthwith be returned by the Paying Agent to the tendering
stockholders.





                                      -3-

      

<PAGE>   1
HUMANA PRESS RELEASE




For Further Information:                                Laurie G. Scarborough
                                                        Investor Relations
                                                        502/580-1037
                                                        August 16, 1995




                   HUMANA COMMENCES TENDER OFFER FOR EMPHESYS


        Louisville, KY -- Humana Inc. (NYSE: HUM) announced that today it 

commenced the previously announced tender offer of $37.50 per share for all the 

outstanding shares of EMPHESYS Financial Group, Inc. (NYSE: EFG). The offer is 

scheduled to expire on Friday, September 15, 1995, unless extended.


        Chemical Mellon Shareholder Services is the depositary for the offer.  

D.F. King & Co., Inc. is the information agent. The dealer manager is Smith 

Barney Inc.


        EMPHESYS, based in Green Bay, Wisconsin, is one of the nation's premier 

health insurers in the small group market. Headquartered in Louisville, 

Kentucky, Humana provides managed health care services to 2.4 million members 

through the operation of health maintenance organizations and preferred 

provider organizations located in 14 states and the District of Columbia.

<PAGE>   1

                                                            EXECUTION COPY


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


                                CREDIT AGREEMENT


                                     AMONG

                                  HUMANA INC.,


               THE SEVERAL BANKS AND OTHER FINANCIAL INSTITUTIONS
                        FROM TIME TO TIME PARTIES HERETO



                                      AND


                                 CHEMICAL BANK,
                         AS AGENT AND AS CAF LOAN AGENT


                          DATED AS OF JANUARY 12, 1994


-----------------------------------------------------------------------------
<PAGE>   2
                           TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                          <C>

SECTION 1.  DEFINITIONS.....................................................  1

     1.1   Defined Terms....................................................  1
     1.2   Other Definitional Provisions.................................... 16

SECTION 2.  AMOUNT AND TERMS OF LOANS....................................... 17

     2.1   Revolving Credit Loans and Revolving Credit Notes................ 17
     2.2   CAF Loans and CAF Loan Notes..................................... 18
     2.3   Fees............................................................. 22
     2.4   Termination, Reduction or Extension of Commitments............... 23
     2.5   Optional Prepayments............................................. 25
     2.6   Conversion Options; Minimum Amount of Loans...................... 25
     2.7   Interest Rate and Payment Dates for Revolving
             Credit Loans................................................... 26
     2.8   Computation of Interest and Fees................................. 27
     2.9   Inability to Determine Interest Rate............................. 28
     2.10   Pro Rata Borrowings and Payments................................ 29
     2.11   Illegality...................................................... 30
     2.12   Requirements of Law............................................. 31
     2.13   Capital Adequacy................................................ 32
     2.14   Taxes........................................................... 32
     2.15   Indemnity....................................................... 34
     2.16   Application of Proceeds of Loans................................ 34
     2.17   Notice of Certain Circumstances; Assignment of
              Commitments Under Certain Circumstances....................... 34

SECTION 3. LETTERS OF CREDIT................................................ 35

     3.1    L/C Sublimit.................................................... 35
     3.2    Procedure for Issuance of Letters of Credit .................... 36
     3.3    Fees, Commissions and Other Charges............................. 36
     3.4    L/C Participation............................................... 37
     3.5    Reimbursement Obligation of the Borrower........................ 38
     3.6    Obligations Absolute............................................ 38
     3.7    Letter of Credit Payments....................................... 38
     3.8    Application..................................................... 39

SECTION 4.    REPRESENTATIONS AND WARRANTIES................................ 39

     4.1   Corporate Existence; Compliance with Law......................... 39
     4.2   No Legal Obstacle to Agreement; Enforceability................... 39
     4.3   Litigation....................................................... 40
     4.4   Disclosure....................................................... 40
     4.5   Defaults......................................................... 41
     4.6   Financial Condition.............................................. 41
     4.7   Changes in Condition............................................. 41
     4.8   Assets........................................................... 42
     4.9   Tax Returns...................................................... 42
     4.10  Contracts, etc................................................... 42
     4.11  Subsidiaries..................................................... 42
</TABLE>





                                      -i-
<PAGE>   3
<TABLE>
<CAPTION>
                                                                            Page
                                                                            ----
<S>                                                                          <C>
     4.12  Burdensome Obligations........................................... 43
     4.13  Pension Plans.................................................... 43
     4.14  Environmental and Public and Employee Health and
              Safety Matters................................................ 43
     4.15  Federal Regulations.............................................. 44
     4.16  Investment Company Act; Other Regulations........................ 44
     4.17  Solvency......................................................... 44
     4.19  Business Activity................................................ 44
     4.20  Purpose of Loans................................................. 44

SECTION 5.  CONDITIONS...................................................... 44

     5.1   Conditions to the Closing Date................................... 44
     5.2   Conditions to Each Loan.......................................... 46

SECTION 6.  AFFIRMATIVE COVENANTS........................................... 47

     6.1   Taxes, Indebtedness, etc......................................... 47
     6.2   Maintenance of Properties; Maintenance of
               Existence.................................................... 47
     6.3   Insurance........................................................ 48
     6.4   Financial Statements............................................. 48
     6.5   Certificates; Other Information.................................. 50
     6.6   Compliance with ERISA............................................ 50
     6.7   Compliance with Laws............................................. 51
     6.8   Inspection of Property; Books and Records;
               Discussions.................................................. 51
     6.9   Notices.......................................................... 51
     6.10  Maintenance of Accreditation, Etc. .............................. 52
     6.11  Further Assurances............................................... 52

SECTION 7.  NEGATIVE COVENANTS.............................................. 53

     7.1   Financial Condition Covenants.................................... 53
     7.2   Limitation on Subsidiary Indebtedness............................ 53
     7.3   Limitation on Liens.............................................. 53
     7.4   Limitations on Fundamental Changes............................... 55
     7.5   Limitation on Sale of Assets..................................... 55
     7.6   Limitation on Distributions...................................... 56
     7.7   Transactions with Affiliates..................................... 56
     7.8   Sale and Leaseback............................................... 56
     7.9   Limitation on Negative Pledge Clauses............................ 57

SECTION 8.  DEFAULTS........................................................ 57

     8.1   Events of Default................................................ 57
     8.2   Annulment of Defaults............................................ 61
     8.3   Waivers.......................................................... 61
     8.4   Course of Dealing................................................ 61

SECTION 9.  THE AGENT....................................................... 61

     9.1   Appointment...................................................... 61
</TABLE>





                                      -ii-
<PAGE>   4
<TABLE>
<CAPTION>
                                                                             Page
                                                                             ----
<S>                                                                          <C>
      9.2  Delegation of Duties............................................. 62
      9.3  Exculpatory Provisions........................................... 62
      9.4  Reliance by Agent................................................ 62
      9.5  Notice of Default................................................ 63
      9.6  Non-Reliance on Agent and Other Banks............................ 63
      9.7  Indemnification.................................................. 64
      9.8  Agent and CAF Loan Agent in Its Individual Capacity.............. 64
      9.9  Successor Agent.................................................. 64

SECTION 10.  MISCELLANEOUS.................................................. 65

     10.1  Amendments and Waivers........................................... 65
     10.2  Notices.......................................................... 65
     10.3  No Waiver; Cumulative Remedies................................... 66
     10.4  Survival of Representations and Warranties....................... 66
     10.5  Payment of Expenses and Taxes; Indemnity......................... 67
     10.6  Successors and Assigns; Participations;
             Purchasing Banks............................................... 67
     10.7  Adjustments; Set-off............................................. 71
     10.8  Counterparts..................................................... 72
     10.9  GOVERNING LAW.................................................... 72
     10.10  WAIVERS OF JURY TRIAL........................................... 72
     10.11  Submission To Jurisdiction; Waivers............................. 72
     10.12  Confidentiality of Information.................................. 72
</TABLE>


SCHEDULES

SCHEDULE I       Commitment Amounts and Percentages; Lending
                   Offices; Addresses for Notice
SCHEDULE II      Applicable Margins
SCHEDULE III     Indebtedness
SCHEDULE IV      Subsidiaries of the Company
SCHEDULE V       Liens


EXHIBITS

EXHIBIT A        Form of Revolving Credit Note
EXHIBIT B        Form of Grid CAF Loan Note
EXHIBIT C        Form of Individual CAF Loan Note
EXHIBIT D        Form of CAF Loan Request
EXHIBIT E        Form of CAF Loan Offer
EXHIBIT F        Form of CAF Loan Confirmation Agreement
EXHIBIT G        Form of Commitment Transfer Supplement
EXHIBIT H        Form of Closing Certificate





                                     -iii-
<PAGE>   5



          CREDIT AGREEMENT, dated as of January 12, 1994, among HUMANA INC., a
Delaware corporation (the "Company"), the several banks and other financial
institutions from time to time parties to this Agreement (the "Banks") and
CHEMICAL BANK, a New York banking corporation, as agent for the Banks hereunder
(in such capacity, the "Agent") and as CAF Loan agent (in such capacity, the
"CAF Loan Agent").

         The parties hereto hereby agree as follows:

         SECTION 1.  DEFINITIONS

                1.1   Defined Terms.  As used in this Agreement, the following
terms have the following meanings:

                 "Additional Bank": as defined in subsection 2.4(d).

                 "Admitted Asset": with respect to any HMO Subsidiary or
         Insurance Subsidiary, any asset of such HMO subsidiary or Insurance
         Subsidiary which qualifies as an "admitted asset" (or any like item)
         under the applicable Insurance Regulations and HMO Regulations.

                 "Affiliate": (a) any director or officer of any corporation or
         partner or joint venturer or Person holding a similar position in
         another Person or members of their families, whether or not living
         under the same roof, or any Person owning beneficially more than 5% of
         the outstanding common stock or other evidences of beneficial interest
         of the Person in question, (b) any Person of which any one or more of
         the Persons described in clause (a) above is an officer, director or
         beneficial owner of more than 5% of the shares or other beneficial
         interest and (c) any Person controlled by, controlling or under common
         control with the Person in question.

                 "Aggregate Outstanding Extensions of Credit": as to any Bank
         at any time, an amount equal to the sum of (a) the aggregate principal
         amount of all Loans made by such Bank then outstanding and (b) such
         Bank's Commitment Percentage of the L/C Obligations then outstanding.

                 "Agreement": this Credit Agreement, as amended, supplemented
         or otherwise modified from time to time.

                 "Alternate Base Rate": for any day, a rate per annum (rounded
         upwards, if necessary, to the next 1/16 of 1%) equal to the greatest
         of (a) the Prime Rate in effect on such day, (b) the Base CD Rate in
         effect on such day plus 1% and (c) the Federal Funds Effective Rate in
         effect on such day plus 1/2 of 1%.  For purposes hereof: "Prime Rate"
         shall mean the rate of interest per annum publicly announced from time
         to time by the Agent as its prime rate in effect





<PAGE>   6
                                                                             2
         
         at its principal office in New York City (each change in the Prime
         Rate to be effective on the date such change is publicly
         announced); "Base CD Rate" shall mean the sum of (a) the product of (i)
         the Three-Month Secondary CD Rate and (ii) a fraction, the numerator
         of which is one and the denominator of which is one minus the C/D
         Reserve Percentage and (b) the C/D Assessment Rate; "Three-Month
         Secondary CD Rate" shall mean, for any day, the secondary market rate
         for three-month certificates of deposit reported as being in effect on
         such day (or, if such day shall not be a Business Day, the next
         preceding Business Day) by the Board of Governors of the Federal
         Reserve System (the "Board") through the public information telephone
         line of the Federal Reserve Bank of New York (which rate will, under
         the current practices of the Board, be published in Federal Reserve
         Statistical Release H.15(519) during the week following such day), or,
         if such rate shall not be so reported on such day or such next
         preceding Business Day, the average of the secondary market quotations
         for three-month certificates of deposit of major money center banks in
         New York City received at approximately 10:00 A.M., New York City
         time, on such day (or, if such day shall not be a Business Day, on the
         next preceding Business Day) by the Agent from three New York City
         negotiable certificate of deposit dealers of recognized standing
         selected by it; "C/D Reserve Percentage" shall mean, for any day, that
         percentage (expressed as a decimal) which is in effect on such day, as
         prescribed by the Board (or any successor), for determining the
         maximum reserve requirement for a member bank of the Federal Reserve
         System in New York City with deposits exceeding one billion Dollars in
         respect of new non-personal three-month certificates of deposit in
         the secondary market in Dollars in New York City and in an amount of
         $100,000 or more; "C/D Assessment Rate" shall mean, for any day, the
         net annual assessment rate (rounded upward to the nearest 1/100th of
         1%) determined by Chemical Bank to be payable on such day to the
         Federal Deposit Insurance Corporation or any successor ("FDIC") for
         FDIC's insuring time deposits made in Dollars at offices of Chemical
         Bank in the United States; and "Federal Funds Effective Rate" shall
         mean, for any day, the weighted average of the rates on overnight
         federal funds transactions with members of the Federal Reserve System
         arranged by federal funds brokers, as published on the next succeeding
         Business Day by the Federal Reserve Bank of New York, or, if such rate
         is not so published for any day which is a Business Day, the average
         of the quotations for the day of such transactions received by the
         Agent from three federal funds brokers of recognized standing selected
         by it.  Any change in the Alternate Base Rate due to a change in the
         Prime Rate, the Three-Month Secondary CD Rate or the Federal Funds
         Effective Rate shall be effective on the effective day of such change
         in the Prime Rate, the Three-Month Secondary CD Rate or the Federal
         Funds Effective Rate, respectively.
<PAGE>   7
                                                                             3





                 "Alternate Base Rate Loans": Revolving Credit Loans hereunder
         at such time as they are made and/or being maintained at a rate of
         interest based upon the Alternate Base Rate.

                 "Applicable LIBOR Auction Advance Rate": in respect of any CAF
         Loan requested pursuant to a LIBOR Auction Advance Request, the London
         interbank offered rate for deposits in Dollars for the period
         commencing on the date of such CAF Loan and ending on the maturity
         date thereof which appears on Telerate Page 3750 as of 11:00 A.M.,
         London time, two Working Days prior to the beginning of such period.

                 "Applicable Margin": for each Type of Revolving Credit Loan
         during a Level I Utilization Period, Level II Utilization Period or
         Level III Utilization Period, the rate per annum set forth under the
         relevant column heading in Schedule II.  Increases or decreases in the
         Applicable Margin shall become effective on the first day of the Level
         I Utilization Period, Level II Utilization Period or Level III
         Utilization Period, as the case may be, to which such Applicable
         Margin relates.

                 "Application": any application, in such form as the Issuing
         Bank may specify from time to time, requesting the Issuing Bank to
         open a Letter of Credit.

                 "Available Commitments": at a particular time, an amount equal
         to the difference between (a) the amount of the Commitments at such
         time and (b) the Aggregate Outstanding Extensions of Credit at such
         time.

                 "Bank Obligations":  as defined in subsection 8.1.

                 "Benefitted Bank":  as defined in subsection 10.7.

                 "Borrowing Date": any Business Day specified in a notice
         pursuant to subsection 2.1(c) or 2.2(b) as a date on which the Company
         requests the Banks to make Revolving Credit Loans or CAF Loans, as the
         case may be, hereunder.

                 "Business Day": a day other than a Saturday, Sunday or other
         day on which commercial banks in New York City are authorized or
         required by law to close.

                 "CAF Loan": each CAF Loan made pursuant to subsection 2.2;
         the aggregate amount advanced by a CAF Loan Bank pursuant to
         subsection 2.2 on each CAF Loan Date shall constitute one or more CAF
         Loans, as specified by such CAF Loan Bank pursuant to subsection
         2.2(b)(vi).

                 "CAF Loan Assignee":  as defined in subsection 10.6(c).
<PAGE>   8
                                                                             4




                 "CAF Loan Assignment": any assignment by a CAF Loan Bank to a
         CAF Loan Assignee of a CAF Loan and related Individual CAF Loan Note;
         any such CAF Loan Assignment to be registered in the Register must set
         forth, in respect of the CAF Loan Assignee thereunder, the full name
         of such CAF Loan Assignee, its address for notices, its lending office
         address (in each case with telephone and facsimile transmission
         numbers) and payment instructions for all payments to such CAF Loan
         Assignee, and must contain an agreement by such CAF Loan Assignee to
         comply with the provisions of subsection 10.6(c) and subsection
         10.6(h) to the same extent as any Bank.

                 "CAF Loan Banks": Banks from time to time designated as CAF
         Loan Banks by the Company by written notice to the CAF Loan Agent
         (which notice the CAF Loan Agent shall transmit to each such CAF Loan
         Bank).

                 "CAF Loan Confirmation": each confirmation by the Company of
         its acceptance of one or more CAF Loan Offers, which CAF Loan
         Confirmation shall be substantially in the form of Exhibit F and shall
         be delivered to the CAF Loan Agent in writing or by facsimile
         transmission.

                 "CAF Loan Date": each date on which a CAF Loan is made
         pursuant to subsection 2.2.

                 "CAF Loan Note": a Grid CAF Loan Note or an Individual CAF
         Loan Note.

                 "CAF Loan  Offer": each offer by a CAF Loan Bank to make one
         or more CAF Loans pursuant to a CAF Loan Request, which CAF Loan Offer
         shall contain the information specified in Exhibit E and shall be
         delivered to the CAF Loan Agent by telephone, immediately confirmed by
         facsimile transmission.

                 "CAF Loan Request": each request by the Company for CAF Loan
         Banks to submit bids to make CAF Loans, which shall contain the
         information in respect of such requested CAF Loans specified in
         Exhibit D and shall be delivered to the CAF Loan Agent in writing or
         by facsimile transmission, or by telephone, immediately confirmed by
         facsimile transmission.

                 "Capital Stock": any and all shares, interests, participations
         or other equivalents (however designated) of capital stock of a
         corporation, any and all equivalent ownership interests in a Person
         (other than a corporation) and any and all warrants or options to
         purchase any of the foregoing.

              "Change in Control": of any corporation, (a) any Person or
         "group" (as defined in Section 13(d)(3) of the Securities Exchange
         Act of 1934, as amended), other than the
<PAGE>   9
                                                                             5

         Company, that shall acquire more than 50% of the Voting Stock of such
         corporation or (b) any Person or group (as defined in preceding clause
         (a)), other than the Company, that shall acquire more than 20% of the
         Voting Stock of such corporation and, at any time following an
         acquisition described in this clause (b), the Continuing Directors
         shall not constitute a majority of the board of directors of such
         corporation.

                 "Chemical Bank": Chemical Bank, a New York banking corporation.

                 "Closing Date": the date on which all of the conditions
         precedent for the Closing Date set forth in subsection 5.1 shall have
         been fulfilled.

                 "Code": the Internal Revenue Code of 1986, as amended from
         time to time.

                 "Commitment": as to any Bank, its obligation to make Revolving
         Credit Loans to the Company pursuant to subsection 2.1(a) and/or issue
         or participate in Letters of Credit issued on behalf of the Company in
         an aggregate principal amount and/or face amount not to exceed at any
         one time outstanding the amount set forth opposite such Bank's name in
         Schedule I, as such amount may be reduced or increased from time to
         time as provided herein.

                 "Commitment Percentage": as to any Bank, the percentage of the
         aggregate Commitments constituted by such Bank's Commitment.

                 "Commitment Period": the period from and including the Closing
         Date to but not including the Termination Date or such earlier date on
         which the Commitments shall terminate as provided herein.

                 "Commitment Transfer Supplement": a Commitment Transfer
         Supplement, substantially in the form of Exhibit G.

                 "Commonly Controlled Entity": an entity, whether or not
         incorporated, which is under common control with the Company within
         the meaning of Section 4001 of ERISA or is part of a group which
         includes the Company and which is treated as a single employer under
         Section 414 of the Code.

                 "Consolidated Assets": the consolidated assets of the Company
         and its Subsidiaries, determined in accordance with GAAP.

                 "Consolidated Earnings Before Interest and Taxes": for any
         period for which the amount thereof is to be determined, Consolidated
         Net Income for such period plus all amounts deducted in computing such
         Consolidated Net Income in
<PAGE>   10
                                                                             6


         respect of Consolidated Interest Expense and income taxes, all
         determined in accordance with GAAP.

                 "Consolidated Interest Expense": for any period for which the
         amount thereof is to be determined, all amounts deducted in computing
         Consolidated Net Income for such period in respect of interest expense
         on Indebtedness determined in accordance with GAAP.

                 "Consolidated Net Income": for any period, the consolidated
         net income, if any, after taxes, of the Company and its Subsidiaries
         for such period determined in accordance with GAAP.

                 "Consolidated Net Tangible Assets": means the total amount of
         assets (less applicable reserves and other properly deductible items)
         after deducting therefrom (i) all current liabilities as disclosed on
         the consolidated balance sheet of the Company (excluding any thereof
         which are by their terms extendable or renewable at the option of the
         obligor thereon to a time more than 12 months after the time as of
         which the amount thereof is being computed and excluding any deferred
         income taxes that are included in current liabilities), and (ii) all
         goodwill, trade names, trademarks, patents, unamortized debt discount
         and expense and other like intangible assets, all as set forth on the
         most recent consolidated balance sheet of the Company and computed in
         accordance with GAAP.

                 "Consolidated Net Worth": Consolidated Assets of the Company
         and its Subsidiaries less the following:

                          (a)   the amount, if any, at which any treasury stock
                 appears on the assets side of the balance sheet;

                          (b)   an amount equal to all amounts which appear or
                 should appear as a credit on the balance sheet of the Company
                 in respect of any class or series of preferred stock of the
                 Company; and

                          (c)   all liabilities which in accordance with GAAP
                 should be reflected as liabilities on such consolidated
                 balance sheet, but in any event including all Indebtedness.

                 "Consolidated Total Debt": the aggregate of all Indebtedness
         (including the current portion thereof) of the Company and its
         Subsidiaries on a consolidated basis.

                 "Continuing Bank": as defined in subsection 2.4(c).

                 "Continuing Director": any member of the Board of Directors of
         the Company who is a member of such Board on the date of this
         Agreement, and any Person who is a member
<PAGE>   11
                                                                             7

         of such Board and whose nomination as a director was approved by a
         majority of the Continuing Directors then on such Board.
 
                 "Contractual Obligation": as to any Person, any provision of
         any security issued by such Person or of any agreement, instrument or
         undertaking to which such Person is a party or by which it or any of
         its property is bound.

                 "Control Group Person": any Person which is a member of the
         controlled group or is under common control with the Company within
         the meaning of Section 414(b) or 414(c) of the Code or Section
         4001(b)(1) of ERISA.

                 "Default": any of the events specified in subsection 8.1,
         whether or not any requirement for the giving of notice, the lapse of
         time, or both, or any other condition, has been satisfied.

                 "Distribution": (a) the declaration or payment of any dividend
         on or in respect of any shares of any class of Capital Stock of the
         Company other than dividends payable solely in shares of common stock
         of the Company; (b) the purchase, redemption or other acquisition of
         any shares of any class of Capital Stock of the Company directly or
         indirectly through a Subsidiary or otherwise; and (c) any other
         distribution on or in respect of any shares of any class of Capital
         Stock of the Company.

                 "Dollars" and "$": dollars in lawful currency of the United
         States of America.

                 "Domestic Lending Office": initially, the office of each Bank
         designated as such in Schedule I; thereafter, such other office of
         such Bank, if any, located within the United States which shall be
         making or maintaining Alternate Base Rate Loans.

                 "Effective Date":  as defined in subsection 2.4(b).

                 "ERISA": the Employee Retirement Income Security Act of 1974,
         as amended from time to time.

                 "Eurocurrency Reserve Requirements": for any day as applied to
         a Eurodollar Loan, the aggregate (without duplication) of the rates
         (expressed as a decimal fraction) of reserve requirements in effect on
         such day (including, without limitation, basic, supplemental, marginal
         and emergency reserves under any regulations of the Board of Governors
         of the Federal Reserve System or other Governmental Authority having
         jurisdiction with respect thereto), dealing with reserve requirements
         prescribed for eurocurrency funding (currently referred to as
         "Eurocurrency
<PAGE>   12
                                                                             8


         Liabilities" in Regulation D of such Board) maintained by a member
         bank of such System.

                 "Eurodollar Lending Office": initially, the office of each
         Bank designated as such in Schedule I; thereafter, such other office
         of such Bank, if any, which shall be making or maintaining Eurodollar
         Loans.

                 "Eurodollar Loans": Revolving Credit Loans hereunder at such
         time as they are made and/or are being maintained at a rate of
         interest based upon the Eurodollar Rate.

                 "Eurodollar Rate": with respect to each day during each
         Interest Period pertaining to a Eurodollar Loan, the rate per annum
         equal to the average (rounded upwards to the nearest whole multiple of
         one sixteenth of one percent) of the respective rates notified to the
         Agent by the Reference Banks as the rate at which each of their
         Eurodollar Lending Offices is offered Dollar deposits two Working Days
         prior to the beginning of such Interest Period in the interbank
         eurodollar market where the eurodollar and foreign currency and
         exchange operations of such Eurodollar Lending Office are then being
         conducted at or about 10:00 A.M., New York City time, for delivery on
         the first day of such Interest Period for the number of days comprised
         therein and in an amount comparable to the amount of the Eurodollar
         Loan of such Reference Bank to be outstanding during such Interest
         Period.

                 "Eurodollar Tranche": the collective reference to Eurodollar
         Loans having the same Interest Period (whether or not originally made
         on the same day).

                 "Event of Default": any of the events specified in subsection
         8.1, provided that any requirement for the giving of notice, the lapse
         of time, or both, or any other condition, event or act has been
         satisfied.

                 "Financing Lease": any lease of property, real or personal, if
         the then present value of the minimum rental commitment thereunder
         should, in accordance with GAAP, be capitalized on a balance sheet of
         the lessee.

                 "Fixed Rate Auction Advance Request": any CAF Loan Request
         requesting the CAF Loan Banks to offer to make CAF Loans at a fixed
         rate (as opposed to a rate composed of the Applicable LIBOR Auction
         Advance Rate plus or minus a margin).

                 "GAAP": (a) with respect to determining compliance by the
         Company with the provisions of subsections 7.1, 7.2 and 7.5, generally
         accepted accounting principles in the United States of America
         consistent with those utilized in preparing the audited financial
         statements referred to in
<PAGE>   13
                                                                             9



         subsection 4.6 and (b) with respect to the financial statements
         referred to in subsection 4.6 or the furnishing of financial
         statements pursuant to subsection 6.4 and otherwise, generally
         accepted accounting principles in the United States of America from
         time to time in effect.

                 "Governmental Authority": any nation or government, any state
         or other political subdivision thereof and any entity exercising
         executive, legislative, judicial, regulatory or administrative
         functions of or pertaining to government.

                 "Grid CAF Loan Note": as defined in subsection 2.2(f).

                 "Guarantee Obligation": any arrangement whereby credit is
         extended to one party on the basis of any promise of another, whether
         that promise is expressed in terms of an obligation to pay the
         Indebtedness of another, or to purchase an obligation owed by that
         other, to purchase assets or to provide funds in the form of lease or
         other types of payments under circumstances that would enable that
         other to discharge one or more of its obligations, whether or not such
         arrangement is listed in the balance sheet of the obligor or referred
         to in a footnote thereto, but shall not include endorsements of items
         for collection in the ordinary course of business.

                 "Headquarters": the principal executive offices of the Company
         located at 500 West Main Street, Louisville, Kentucky 40202.

                 "HMO": a health maintenance organization doing business as
         such (or required to qualify or to be licensed as such) under HMO
         Regulations.

                 "HMO Regulation": all laws, regulations, directives and
         administrative orders applicable under federal or state law to health
         maintenance organizations and any regulations, orders and directives
         promulgated or issued pursuant thereto.

                 "HMO Regulator": any Person charged with the administration,
         oversight or enforcement of an HMO Regulation.

                 "HMO Subsidiary": any Subsidiary of the Company that is now or
         hereafter an HMO.

                 "Indebtedness": of a Person, at a particular date, the sum
         (without duplication) at such date of (a) all indebtedness of such
         Person for borrowed money or for the deferred purchase price of
         property or services or which is evidenced by a note, bond, debenture
         or similar instrument, (b) all obligations of such Person under
         Financing Leases,
<PAGE>   14
                                                                            10


         (c)  all obligations of such Person in respect of letters of credit,
         acceptances, or similar obligations issued or created for the account
         of such Person in excess of $1,000,000, (d) all liabilities secured by
         any Lien on any property owned by the Company or any Subsidiary even
         though such Person has not assumed or otherwise become liable for the
         payment thereof and (e) all Guarantee Obligations relating to any of
         the foregoing in excess of $1,000,000.

                 "Individual CAF Loan Note": as defined in subsection 2.2(g).

                 "Insolvency" or "Insolvent": at any particular time, a
         Multiemployer Plan which is insolvent within the meaning of Section
         4245 of ERISA.

                 "Insurance Regulation": any law, regulation, rule, directive
         or order applicable to an insurance company.

                 "Insurance Regulator": any Person charged with the
         administration, oversight or enforcement of any Insurance Regulation.

                 "Insurance Subsidiary": any Subsidiary of the Company that is
         now or hereafter doing business (or required to qualify or to be
         licensed) under Insurance Regulations.

                 "Interest Payment Date": (a) as to any Alternate Base Rate
         Loan, the last day of each March, June, September and December,
         commencing on the first of such days to occur after Alternate Base
         Rate Loans are made or Eurodollar Loans are converted to Alternate
         Base Rate Loans, (b) as to any Eurodollar Loan in respect of which the
         Company has selected an Interest Period of one, two or three months,
         the last day of such Interest Period and (c) as to any Eurodollar Loan
         in respect of which the Company has selected a longer Interest Period
         than the periods described in clause (b), the last day of each March,
         June, September and December falling within such Interest Period and
         the last day of such Interest Period.

                 "Interest Period": with respect to any Eurodollar Loans:

                          (i)   initially, the period commencing on the
                 borrowing or conversion date, as the case may be, with respect
                 to such Eurodollar Loans and ending one, two, three or six
                 months thereafter (or, with the consent of all the Banks, nine
                 or twelve months thereafter), as selected by the Company in
                 its notice of borrowing as provided in subsection 2.1(c) or
                 its notice of conversion as provided in subsection 2.6(a), as
                 the case may be; and
<PAGE>   15
                                                                            11

                          (ii)   thereafter, each period commencing on the last
                 day of the next preceding Interest Period applicable to such
                 Eurodollar Loans and ending one, two, three or six months
                 thereafter (or, with the consent of all the Banks, nine or
                 twelve months thereafter), as selected by the Company by
                 irrevocable notice to the Agent not less than three Business
                 Days prior to the last day of the then current Interest Period
                 with respect to such Eurodollar Loans;

         provided that, all of the foregoing provisions relating to Interest
         Periods are subject to the following:

                          (1)   if any Interest Period pertaining to a
                 Eurodollar Loan would otherwise end on a day which is not a
                 Business Day, such Interest Period shall be extended to the
                 next succeeding Business Day unless the result of such
                 extension would be to carry such Interest Period into another
                 calendar month in which event such Interest Period shall end
                 on the immediately preceding Business Day;

                          (2)   if the Company shall fail to give notice as
                 provided above, the Company shall be deemed to have selected
                 an Alternate Base Rate Loan to replace the affected Eurodollar
                 Loan;

                          (3)   any Interest Period pertaining to a Eurodollar
                 Loan that begins on the last Business Day of a calendar month
                 (or on a day for which there is no numerically corresponding
                 day in the calendar month at the end of such Interest Period)
                 shall end on the last Business Day of a calendar month;

                          (4)   any interest period pertaining to a Eurodollar
                 Loan that would otherwise end after the Termination Date shall
                 end on the Termination Date; and

                          (5)   the Company shall select Interest Periods so as
                 not to require a payment or prepayment of any Eurodollar Loan
                 during an Interest Period for such Loan.

                 "Issuing Bank": Chemical Bank, in its capacity as issuer of
         any Letter of Credit.

                 "L/C Fee Payment Date": the last day of each March, June,
         September and December.

                 "L/C Obligations": at any time, an amount equal to the sum of
         (a) the aggregate then undrawn and unexpired amount of the then
         outstanding Letters of Credit and (b) the aggregate amount of drawings
         under Letters of Credit which have not then been reimbursed pursuant
         to subsection 3.5.
<PAGE>   16
                                                                            12


                 "L/C Participants": the collective reference to all the Banks
         other than the Issuing Bank.

                 "L/C Sublimit":  $75,000,000.

                 "Letters of Credit": as defined in  subsection  3.1(a).

                 "Level I Utilization Period": at a particular time, any
         six-month period (or, at any time which is prior to the date which is
         six-months after the Closing Date, such shorter period) ending at such
         time during which the average daily Aggregate Outstanding Extensions
         of Credit of all Banks is less than 33-1/3% of the aggregate amount of
         the average daily Commitments of all Banks.

                 "Level II Utilization Period": at a particular time, any
         six-month period (or, at any time which is prior to the date which is
         six months after the Closing Date, such shorter period) ending at such
         time during which the average daily Aggregate Outstanding Extensions
         of Credit of all Banks is greater than or equal to 33-1/3% of the
         aggregate amount of the average daily Commitments of all Banks but
         less than 66-2/3% of the aggregate amount of the average daily
         Commitments of all Banks.

                 "Level III Utilization Period": at a particular time, any
         six-month period (or, at any time which is prior to the date which is
         six months after the Closing Date, such shorter period) ending at such
         time during which the average daily Aggregate Outstanding Extensions
         of Credit of all Banks is greater than or equal to 66-2/3% of the
         aggregate amount of the average daily Commitments of all Banks.

                 "Leverage Ratio": at the last day of any full fiscal quarter
         of the Company, the ratio of (a) all Indebtedness of the Company and
         its Subsidiaries outstanding on such date to (b) Consolidated Net
         Income for the period of four fiscal quarters of the Company ended on
         such day plus, to the extent deducted from earnings in determining
         such Consolidated Net Income, Consolidated Interest Expense, income
         taxes, depreciation and amortization.

                 "LIBOR Auction Advance Request": any CAF Loan Request
         requesting the CAF Loan Banks to offer to make CAF Loans at an
         interest rate equal to the Applicable LIBOR Auction Advance Rate plus
         or minus a margin.

                 "Lien": any mortgage, pledge, hypothecation, assignment,
         deposit arrangement, encumbrance, lien (statutory or other), or
         preference, priority or other security agreement or preferential
         arrangement of any kind or nature whatsoever (including, without
         limitation, any conditional sale or other title retention agreement,
         any
<PAGE>   17
                                                                            13


         financing lease having substantially the same economic effect as any 
         of the foregoing).

                 "Loan": any loan made by any Bank pursuant to this Agreement.

                 "Loan Documents": this Agreement, the Notes and the
         Applications.

                 "Majority Banks": (a) during the Commitment Period, Banks
         whose Commitment Percentages aggregate at least 51% and (b) after the
         Commitments have expired or been terminated, Banks whose outstanding
         Loans represent in the aggregate 51% of all outstanding Loans.

                 "Material Adverse Effect": any material adverse effect on (a)
         the business, assets, operations or condition (financial or otherwise)
         of the Company and its Subsidiaries taken as a whole, (b) the ability
         of the Company to perform its obligations under this Agreement and the
         Notes or (c) the rights and remedies of the Banks with respect to the
         Company and its Subsidiaries under any of the Loan Documents.

                 "Multiemployer Plan": a Plan which is a multiemployer plan as
         defined in Section 4001(a)(3) of ERISA.

                 "Note": any Revolving Credit Note or CAF Loan Note.

                 "Participants":  as defined in subsection 10.6(b).

                 "Payment Sharing Notice": a written notice from the Company,
         or any Bank, informing the Agent that an Event of Default has occurred
         and is continuing and directing the Agent to allocate payments
         thereafter received from the Company in accordance with subsection
         2.10(c).

                 "PBGC": the Pension Benefit Guaranty Corporation established
         pursuant to Subtitle A of Title IV of ERISA.

                 "Person": an individual, partnership, corporation, business
         trust, joint stock company, trust, unincorporated association, joint
         venture, Governmental Authority or other entity of whatever nature.

                 "Plan": at a particular time, any employee benefit plan
         which is covered by ERISA and in respect of which the Company or a
         Control Group Person is (or, if such plan were terminated at such
         time, would under Section 4069 of ERISA be deemed to be) an "employer"
         as defined in Section 3(5) of ERISA.

                 "Purchasing Banks": as defined in subsection 10.6(d).
<PAGE>   18
                                                                            14


                 "Reference Banks": Chemical Bank, The Chase Manhattan Bank,
         N.A. and Citibank, N.A.

                 "Register":  as defined in subsection 10.6(e).

                 "Regulation U": Regulation U of the Board of Governors of the
         Federal Reserve System.
        
                 "Reimbursement Obligation": the obligation of the Company to
         reimburse the Issuing Bank pursuant to subsection 3.5(a) for amounts
         drawn under Letters of Credit.

                 "Reorganization": with respect to any Multiemployer Plan, the
         condition that such plan is in reorganization within the meaning of
         such term as used in Section 4241 of ERISA.

                 "Reportable Event": any of the events set forth in Section
         4043(b) of ERISA, other than those events as to which the thirty day
         notice period is waived under subsections .13, .14, .16, .18, .19 or
         .20 of PBGC Reg. subsection 2615.

                 "Requested Termination Date": as defined in subsection 2.4(b).

                 "Required Banks": (a) during the Commitment Period, Banks
         whose Commitment Percentages aggregate at least 66-2/3% and (b) after
         the Commitments have expired or been terminated, Banks whose
         outstanding Loans represent in the aggregate 66-2/3% of all
         outstanding Loans.

                 "Requirement of Law": as to any Person, the Certificate of
         Incorporation and By-Laws or other organizational or governing
         documents of such Person, and any law, treaty, rule or regulation or
         determination of an arbitrator or a court or other Governmental
         Authority, in each case applicable to or binding upon such Person or
         any of its property or to which such Person or any of its property is
         subject.

                 "Responsible Officer": the chief executive officer, the
         president, any executive or senior vice president or vice president of
         the Company, the chief financial officer, treasurer or controller of
         the Company.

                 "Revolving Credit Loans": as defined in subsection 2.1(a).

                 "Revolving Credit Notes": as defined in subsection 2.1(b).

                 "Significant Subsidiary": means, at any particular time, any
         Subsidiary of the Company having total assets of $5,000,000 or more at
         that time.
<PAGE>   19
                                                                            -15-


                 "Single Employer Plan": any Plan which is covered by Title IV
         of ERISA, but which is not a Multiemployer Plan.

                 "Solvent": with respect to any Person (or group of Persons) on
         a particular date, that on such date (i) the fair value of the
         property of such Person (or group of Persons) is greater than the
         total amount of liabilities, including, without limitation, contingent
         liabilities, of such Person (or group of Persons), (ii) the present
         fair salable value of the assets of such Person (or group of Persons)
         is not less than the amount that will be required to pay the probable
         liability of such Person (or group of Persons) on its debts as they
         become absolute and matured, (iii) such Person (or group of Persons)
         is able to pay its debts and other liabilities, contingent obligations
         and other commitments as they mature in the normal course of business,
         (iv) such Person (or group of Persons) does not intend to, and does
         not believe that it will, incur debts or liabilities beyond such
         Person's (or group of Person's) ability to pay as such debts and
         liabilities mature, (v) such Person (or group of Persons) is not
         engaged in a business or a transaction, and is not about to engage in
         a business or a transaction, for which such Person's (or group of
         Person's) property would constitute unreasonably small capital after
         giving due consideration to the prevailing practice in the industry in
         which such Person (or group of Persons) is engaged and (vi) such
         Person (or group of Persons) is solvent under all applicable HMO
         Regulations and Insurance Regulations.  In computing the amount of
         contingent liabilities at any time, it is intended that such
         liabilities will be computed at the amount which, in light of all the
         facts and circumstances existing at such time, represents the amount
         that can reasonably be expected to become an actual or matured
         liability.

                 "Standby Letter of Credit":  as defined in subsection 3.1(a).

                 "Subsidiary": as to any Person, a corporation of which shares
         of stock having ordinary voting power (other than stock having such
         power only by reason of the happening of a contingency) to elect a
         majority of the board of directors or other managers of such
         corporation are at the time owned, or the management of which is
         otherwise controlled, directly or indirectly through one or more
         intermediaries, or both, by such Person.  Unless otherwise qualified,
         all references to a "Subsidiary" or to "Subsidiaries" in this
         Agreement shall refer to a Subsidiary or Subsidiaries of the Company.

                 "Taxes":  as defined in subsection 2.14.

                 "Terminating Bank": as defined  in  subsection  2.4(c).
<PAGE>   20
                                                                            16


                 "Termination Date": the third anniversary of the Closing Date
         (or, if such date is not a Business Day, the next succeeding Business
         Day), or such other Business Day to which the Termination Date may be
         changed pursuant to subsection 2.4).

                 "Transfer Effective Date": as defined in each Commitment
         Transfer Supplement.

                "Transferee":  as defined in subsection 10.6(g).

                 "Type": as to any Revolving Credit Loan, its nature as an
         Alternate Base Rate Loan or Eurodollar Loan.

                 "Uniform Customs": the Uniform Customs and Practice for
         Documentary Credits (1993 Revision), International Chamber of Commerce
         Publication No. 500, as the same may be amended from time to time.

                 "Voting Stock": of any corporation, shares of capital stock or
         other securities of such corporation entitled to vote generally in the
         election of directors of such corporation.

                 "Working Day": any Business Day on which dealings in foreign
         currencies and exchange between banks may be carried on in London,
         England.

         1.2     Other Definitional Provisions. (a) Unless otherwise specified
therein, all terms defined in this Agreement shall have the defined meanings
when used in the Notes or any certificate or other document made or delivered
pursuant hereto.

         (b)     As used herein and in the other Loan Documents, and any
certificate or other document made or delivered pursuant hereto or thereto,
accounting terms relating to the Company and its Subsidiaries not defined in
subsection 1.1 and accounting terms partly defined in subsection 1.1, to the
extent not defined, shall have the respective meanings given to them under
GAAP.

         (c)     The words "hereof", "herein", and "hereunder" and words of
similar import when used in this Agreement shall refer to this Agreement as a
whole and not to any particular provision of this Agreement, and Section,
subsection, Schedule and Exhibit references are to this Agreement unless
otherwise specified.

         (d)     The meanings given to terms defined herein shall be equally
applicable to both the singular and plural forms of such terms.
<PAGE>   21

                                                                              17

              SECTION 2.   AMOUNT AND TERMS OF LOANS

              2.1  Revolving Credit Loans and Revolving Credit Notes. (a)
Subject to the terms and conditions hereof, each Bank severally agrees to make
loans ("Revolving Credit Loans") to the Company from time to time during the
Commitment Period in an aggregate principal amount at any one time outstanding
which, when added to such Bank's Commitment Percentage of the then outstanding
L/C Obligations, does not exceed the Commitment of such Bank, provided that the
Aggregate Outstanding Extensions of Credit of all Banks shall not at any time
exceed the aggregate amount of the Commitments.  During the Commitment Period
the Company may use the Commitments by borrowing, prepaying the Revolving
Credit Loans in whole or in part, and reborrowing, all in accordance with the
terms and conditions hereof.  The Revolving Credit Loans may be (i) Eurodollar
Loans,  (ii) Alternate Base Rate Loans or (iii) a combination thereof, as
determined by the Company and notified to the Agent in accordance with
subsection 2.1 (c).  Eurodollar Loans shall be made and maintained by each Bank
at its Eurodollar Lending Office, and Alternate Base Rate Loans shall be made
and maintained by each Bank at its Domestic Lending Office.

              (b)  The Revolving Credit Loans made by each Bank shall be
evidenced by a promissory note of the Company, substantially in the form of
Exhibit A with appropriate insertions as to payee, date and principal amount (a
"Revolving Credit Note"), payable to the order of such Bank and evidencing the
obligation of the Company to pay a principal amount equal to the amount of the
initial Commitment of such Bank or, if a lesser amount, the aggregate unpaid
principal amount of all Revolving Credit Loans made by such Bank.  Each Bank is
hereby authorized to record the date, Type and amount of each Revolving Credit
Loan made or converted by such Bank, and the date and amount of each payment or
prepayment of principal thereof, and, in the case of Eurodollar Loans, the
Interest Period with respect thereto, on the schedule annexed to and
constituting a part of its Revolving Credit Note, and any such recordation
shall constitute prima facie evidence of the accuracy of the information so
recorded; provided, however, that the failure to make any such recordation
shall not affect the obligations of the Company hereunder or under any
Revolving Credit Note.  Each Revolving Credit Note shall (x) be dated the
Closing Date, (y) be stated to mature on the Termination Date, and (z) bear
interest on the unpaid principal amount thereof from time to time outstanding
at the applicable interest rate per annum determined as provided in subsection
2.7.

              (c)  The Company may borrow under the Commitments during the
Commitment Period on any Working Day if the borrowing is of Eurodollar Loans or
on any Business Day if the borrowing is of Alternate Base Rate Loans; provided
that the Company shall give the Agent irrevocable notice (which notice must be
received by the Agent (i) prior to 11:30 A.M., New York City time three
<PAGE>   22
                                                                              18

Working Days prior to the requested Borrowing Date, in the case of Eurodollar
Loans, and (ii) prior to 10:00 A.M., New York City time, on the requested
Borrowing Date, in the case of Alternate Base Rate Loans), specifying (A) the
amount to be borrowed,  (B) the requested Borrowing Date, (C) whether the
borrowing is to be of Eurodollar Loans, Alternate Base Rate Loans, or a
combination thereof, and (D) if the borrowing is to be entirely or partly of
Eurodollar Loans, the length of the Interest Period therefor. Each borrowing
pursuant to the Commitments shall be in an aggregate principal amount equal to
the lesser of (i) $10,000,000 or a whole multiple of $1,000,000 in excess
thereof and (ii) the then Available Commitments.  Upon receipt of such notice
from the Company, the Agent shall promptly notify each Bank thereof.  Each Bank
will make the amount of its pro rata share of each borrowing available to the
Agent for the account of the Company at the office of the Agent set forth in
subsection 10.2 prior to 12:00 P.M., New York City time, on the Borrowing Date
requested by the Company in funds immediately available to the Agent.  The
proceeds of all such Revolving Credit Loans will then be made available to the
Company by the Agent at such office of the Agent by crediting the account of
the Company on the books of such office with the aggregate of the amounts made
available to the Agent by the Banks.

             2.2  CAF Loans and CAF Loan Notes.   (a) The Company may borrow
CAF Loans from time to time on any Business Day (in the case of CAF Loans made
pursuant to a Fixed Rate Auction Advance Request) or any Working Day (in the
case of CAF Loans made pursuant to a LIBOR Auction Advance Request) during the
period from the Closing Date until the date occurring 14 days prior to the
Termination Date in the manner set forth in this subsection 2.2 and in amounts
such that the Aggregate Outstanding Extensions of Credit of all Banks at any
time shall not exceed the aggregate amount of the Commitments at such time.

             (b)   (i)  The Company shall request CAF Loans by delivering a CAF
Loan Request to the CAF Loan Agent, not later than 12:00 Noon (New York City
time) four Working Days prior to the proposed Borrowing Date (in the case of a
LIBOR Auction Advance Request), and not later than 10:00 A.M. (New York City
time) one Business Day prior to the proposed Borrowing Date (in the case of a
Fixed Rate Auction Advance Request).  Each CAF Loan Request may solicit bids
for CAF Loans in an aggregate principal amount of $10,000,000 or an integral
multiple thereof and for not more than three alternative maturity dates for
such CAF Loans. The maturity date for each CAF Loan shall be not less than 7
days nor more than 360 days after the Borrowing Date therefor (and in any event
not after the Termination Date).  The CAF Loan Agent shall promptly notify each
CAF Loan Bank by facsimile transmission of the contents of each CAF Loan
Request received by it.

             (ii)  In the case of a LIBOR Auction Advance Request, upon receipt
of notice from the CAF Loan Agent of the contents of
<PAGE>   23
                                                                              19

such CAF Loan Request, any CAF Loan Bank that elects, in its sole discretion,
to do so, shall irrevocably offer to make one or more CAF Loans at the
Applicable LIBOR Auction Advance Rate plus or minus a margin for each such CAF
Loan determined by such CAF Loan Bank in its sole discretion.  Any such
irrevocable offer shall be made by delivering a CAF Loan Offer to the CAF Loan
Agent, before 9:30 A.M., New York City time, three Working Days before the
proposed Borrowing Date, setting forth the maximum amount of CAF Loans for each
maturity date, and the aggregate maximum amount for all maturity dates, which
such Bank would be willing to make (which amounts may, subject to subsection
2.2(a), exceed such CAF Loan Bank's Commitment) and the margin above the
Applicable LIBOR Auction Advance Rate at which such CAF Loan Bank is willing to
make each such CAF Loan; the CAF Loan Agent shall advise the Company before
10:00 A.M., New York City time, three Working Days before the proposed
Borrowing Date of the contents of each such CAF Loan Offer received by it.  If
the CAF Loan Agent in its capacity as a CAF Loan Bank shall, in its sole
discretion, elect to make any such offer, it shall advise the Company of the
contents of its CAF Loan Offer before 9:00 A.M., New York City time, three
Working Days before the proposed Borrowing Date.

         (iii)  In the case of a Fixed Rate Auction Advance Request, upon
receipt of notice from the Agent of the contents of such CAF Loan Request, any
CAF Loan Bank that elects, in its sole discretion, to do so, shall irrevocably
offer to make one or more CAF Loans at a rate or rates of interest for each
such CAF Loan determined by such CAF Loan Bank in its sole discretion.  Any
such irrevocable offer shall be made by delivering a CAF Loan Offer to the CAF
Loan Agent, before 9:30 A.M., New York City time, on the proposed Borrowing
Date, setting forth the maximum amount of CAF Loans for each maturity date, and
the aggregate maximum amount for all maturity dates, which such CAF Loan Bank
would be willing to make (which amounts may, subject to subsection 2.2 (a),
exceed such CAF Loan Bank's Commitment) and the rate or rates of interest at
which such CAF Loan Bank is willing to make each such CAF Loan; the CAF Loan
Agent shall advise the Company before 10:15 A.M., New York City time, on the
proposed Borrowing Date of the contents of each such CAF Loan Offer received by
it.  If the CAF Loan Agent or any affiliate thereof in its capacity as a CAF
Loan Bank shall, in its sole discretion, elect to make any such offer, it shall
advise the Company of the contents of its CAF Loan Offer before 9:15 A.M., New
York City time, on the proposed Borrowing Date.

         (iv)  The Company shall before 11:00 A.M., New York City time,
three Working Days before the proposed Borrowing Date (in the case of CAF Loans
requested by a LIBOR Auction Advance Request) and before 10:30 A.M., New York
City time, on the proposed Borrowing Date (in the case of CAF Loans requested
by a Fixed Rate Auction Advance Request) either, in its absolute discretion:
<PAGE>   24
                                                                              20

                (A)  cancel such CAF Loan Request by giving the CAF Loan Agent
         telephone notice to that effect, or

                (B)  accept one or more of the offers made by any CAF Loan Bank
         or CAF Loan Banks pursuant to clause (ii) or clause (iii) above, as
         the case may be, by giving telephone notice to the CAF Loan Agent
         (immediately confirmed by delivery to the CAF Loan Agent of a CAF Loan
         Confirmation) of the amount of CAF Loans for each relevant maturity
         date to be made by each CAF Loan Bank (which amount for each such
         maturity date shall be equal to or less than the maximum amount for
         such maturity date specified in the CAF Loan offer of such CAF Loan
         Bank, and for all maturity dates included in such CAF Loan Offer shall
         be equal to or less than the aggregate maximum amount specified in
         such CAF Loan offer for all such maturity dates) and reject any
         remaining offers made by CAF Loan Banks pursuant to clause (ii) or
         clause (iii) above, as the case may be; provided, however, that (x)
         the Company may not accept offers for CAF Loans for any maturity date
         in an aggregate principal amount in excess of the maximum principal
         amount requested in the related CAF Loan Request, (y) if the Company
         accepts any of such offers, it must accept offers strictly based upon
         pricing for such relevant maturity date and no other criteria
         whatsoever and (z) if two or more CAF Loan Banks submit offers for any
         maturity date at identical pricing and the Company accepts any of such
         offers but does not wish to borrow the total amount offered by such
         CAF Loan Banks with such identical pricing, the Company shall accept
         offers from all of such CAF Loan Banks in amounts allocated among them
         pro rata according to the amounts offered by such CAF Loan Banks (or
         as nearly pro rata as shall be practicable after giving effect to the
         requirement that CAF Loans made by a CAF Loan Bank on a Borrowing Date
         for each relevant maturity date shall be in a principal amount of
         $5,000,000 or an integral multiple of $1,000,000 in excess thereof
         provided that if the number of CAF Loan Banks that submit offers for
         any maturity date at identical pricing is such that, after the Company
         accepts such offers pro rata in accordance with the foregoing, the CAF
         Loans to be made by such CAF Loan Banks would be less then $5,000,000
         principal amount, the number of such CAF Loan Banks shall be reduced
         by the CAF Loan Agent by lot until the CAF Loans to be made by such
         remaining CAF Loan Banks would be in a principal amount of $5,000,000
         or an integral multiple of $1,000,000 in excess thereof).

              (v)  If the Company notifies the CAF Loan Agent that a CAF Loan
Request is cancelled pursuant to clause (iv)(A) above, the CAF Loan Agent shall
give prompt, but in no event more then one hour later, telephone notice thereof
to the CAF Loan Banks, and the CAF Loans requested thereby shall not be made.
<PAGE>   25
                                                                              21

             (vi)  If the Company accepts pursuant to clause (iv)(B) above 
one or more of the offers made by any CAF Loan Bank or CAF Loan Banks, the
CAF Loan Agent shall promptly, but in no event more than one hour later,
notify each CAF Loan Bank which has made such an offer of the aggregate amount
of such CAF Loans to be made on such Borrowing Date for each maturity date and
of the acceptance or rejection of any offers to make such CAF Loans made by
such CAF Loan Bank. Each CAF Loan Bank which is to make a CAF Loan shall,
before 12:00 Noon, New York City time, on the Borrowing Date specified in the
CAF Loan Request applicable thereto, make available to the Agent at its office
set forth in subsection 10.2 the amount of CAF Loans to be made by such CAF
Loan Bank, in immediately available funds.  The Agent will make such funds
available to the Company as soon as practicable on such date at the Agent's
aforesaid address. As soon as practicable after each Borrowing Date, the Agent
shall notify each Bank of the aggregate amount of CAF Loans advanced on such
Borrowing Date and the respective maturity dates thereof.

             (c)  Within the limits and on the conditions set forth in this 
subsection 2.2, the Company may from time to time borrow under this
subsection 2.2, repay pursuant to paragraph (d) below, and reborrow under this
subsection 2.2.

             (d)  The Company shall repay to the Agent for the account of each 
CAF Loan Bank which has made a CAF Loan (or the CAF Loan Assignee in respect
thereof, as the case may be) on the maturity date of each CAF Loan (such
maturity date being that specified by the Company for repayment of such CAF
Loan in the related CAF Loan Request) the then unpaid principal amount of
such CAF Loan. The Company shall not have the right to prepay any principal
amount of any CAF Loan.

             (e)  The Company shall pay interest on the unpaid principal 
amount of each CAF Loan from the Borrowing Date to the stated maturity
date thereof, at the rate of interest determined pursuant to paragraph (b)
above (calculated on the basis of a 360-day year for actual days elapsed),
payable on the interest payment date or dates specified by the Company for such
CAF Loan in the related CAF Loan Request as provided in the CAF Loan Note
evidencing such CAF Loan.  If all or a portion of the principal amount of any
CAF Loan or any interest or other amount payable hereunder in respect thereof
shall not be paid when due (whether at the stated maturity, by acceleration or
otherwise), such overdue amount shall, without limiting any rights of any Bank
under this Agreement, bear interest from the date on which such payment was due
at a rate per annum which is 2% above the rate which would otherwise be
applicable pursuant to the CAF Loan Note evidencing such CAF Loan until the
scheduled maturity date with respect thereto as set forth in the CAF Loan Note
evidencing such CAF Loan, and for each day thereafter at rate per annum which
is 2% above the Alternate Base Rate until paid in full (as well after as before
judgment).
<PAGE>   26
                                                                              22

            (f)  The CAF Loans made by each CAF Loan Bank shall be evidenced
initially by a promissory note of the Company, substantially in the form of
Exhibit B with appropriate insertions (a "Grid CAF Loan Note"), payable to the
order of such CAF Loan Bank and representing the obligation of the Company to
pay the unpaid principal amount of all CAF Loans made by such CAF Loan Bank,
with interest on the unpaid principal amount from time to time outstanding of
each CAF Loan evidenced thereby as prescribed in subsection 2.2 (e).  Each
CAF Loan Bank is hereby authorized to record the date and amount of each CAF
Loan made by such Bank, the maturity date thereof, the date and amount of each
payment of principal thereof and the interest rate with respect thereto on the
schedule annexed to and constituting part of its Grid CAF Loan Note, and any
such recordation shall constitute prima facie evidence of the accuracy of the
information so recorded; provided, however, that the failure to make any such
recordation shall not affect the obligations of the Company hereunder or
under any Grid CAF Loan Note.  Each Grid CAF Loan Note shall be dated the
Closing Date and each CAF Loan evidenced thereby shall bear interest for the
period from and including the Borrowing Date thereof on the unpaid principal
amount thereof from time to time outstanding at the applicable rate per annum
determined as provided in, and such interest shall be payable as specified in,
subsection 2.2(e).

            (g)  Amounts advanced by a CAF Loan Bank pursuant to this
subsection 2.2 on a Borrowing Date which have the same maturity date and
interest rate shall be deemed to constitute one CAF Loan so long as such
amounts remain evidenced by the Grid CAF Loan Note of such CAF Loan Bank; any
such CAF Loan Bank that wishes such amounts to constitute more than one CAF
Loan and to have each such CAF Loan evidenced by a separate promissory note
payable to such CAF Loan Bank, substantially in the form of Exhibit C with
appropriate insertions as to Borrowing Date, principal amount and interest rate
(an "Individual CAF Loan Note"), shall notify the CAF Loan Agent and the
Company by facsimile transmission of the respective principal amounts of the
CAF Loans (which principal amounts shall not be less than $5,000,000 for any of
such CAF Loans) to be evidenced by each such Individual CAF Loan Note.  Not
later than three Business Days after receipt of such notice, the Company shall
deliver to such CAF Loan Bank an Individual CAF Loan Note payable to the order
of such CAF Loan Bank in the principal amount of each such CAF Loan and
otherwise conforming to the requirements of this Agreement.  Upon receipt of
such Individual CAF Loan Note, such CAF Loan Bank shall endorse on the schedule
attached to its Grid CAF Loan Note the transfer of such CAF Loan from Grid CAF
Loan Note to such Individual CAF Loan Note.

              2.3  Fees.  (a) The Company agrees to pay to the Agent, for the
account of each Bank, a facility fee computed at the rate of .175% per annum on
the average daily amount of the Commitment of such Bank during the period for
which payment is made, payable quarterly in arrears on the last day of each
March, June,
<PAGE>   27
                                                                              23

September and December and on any earlier date on which the Commitments shall
terminate as provided herein and the Revolving Credit Loans shall have been
repaid in full, commencing on the first of such dates to occur after the date
hereof.

              (b)  The Company agrees to pay to the Agent the other fees in the
amounts, and on the dates, agreed to by the Company and the Agent in the fee
letter, dated November 29, 1993, between the Agent and the Company.

              2.4  Termination, Reduction or Extension of Commitments.   (a)
The Company shall have the right, upon not less than five Business Days' notice
to the Agent, to terminate the Commitments or, from time to time, to reduce
ratably the amount of the Commitments, provided that no such termination or
reduction shall be permitted if, after giving effect thereto and to any
prepayments of the Loans made on the effective date thereof, the then
outstanding principal amount of the Loans, when added to the then L/C
Obligations, would exceed the amount of the Commitments then in effect.  Any
such reduction shall be in an amount of $10,000,000 or a whole multiple of
$1,000,000 in excess thereof, and shall reduce permanently the amount of the
Commitments then in effect.

               (b)  The Company may request, in a notice given as herein
provided to the Agent and each of the Banks not less than 90 days and not
more than 120 days prior to the second anniversary of the Closing Date, that 
the Termination Date be extended, which notice shall specify that the
requested extension is to be effective (the "Effective Date") on the second 
anniversary of the Closing Date, and that the new Termination Date to be in 
effect following such extension (the "Requested Termination Date") is to be 
the fifth anniversary of the Closing Date.  Each Bank shall, not later than 
30 days following such notice, notify the Company and the Agent of its 
election to extend or not to extend the Termination Date with respect to its 
Commitment.  The Company may, not later than 15 days following such notice 
from the Banks, revoke its request to extend the Termination Date.  If the 
Required Banks elect to extend the Termination Date with respect 
to their Commitments and the Company has not revoked its request to extend
the Termination Date, then, subject to the provisions of this subsection 2.4, 
the Termination Date shall be extended for two years.  Notwithstanding any 
provision of this Agreement to the contrary, any notice by any Bank of its 
willingness to extend the Termination Date with respect to its Commitment 
shall be revocable by such Bank in its sole and absolute discretion at any 
time prior to the Effective Date.  Any Bank which shall not notify the Company 
and the Agent of its election to extend the Termination Date within 30 days 
following such notice shall be deemed to have elected not to extend the 
Termination Date with respect to its Commitment.
<PAGE>   28
                                                                              24

              (c)  Provided that the Required Banks shall have elected to
extend their Commitments as provided in this subsection 2.4, if any Bank shall
timely notify the Company and the Agent pursuant to subsection 2.4 (b) of its
election not to extend its Commitment or its revocation of any extension, or
shall be deemed to have elected not to extend its Commitments, (any such Bank
being called a "Terminating Bank"), then the remaining Banks (the "Continuing
Banks") or any of them shall have the right (but not the obligation), upon
notice to the Company and the Agent not later than 30 Business Days preceding
the Effective Date to increase their Commitments, by an amount up to, in the
aggregate, the Commitments of any Terminating Banks. If, in the aggregate, any
of the Remaining Banks elect to increase their Commitments by an amount in
excess of the aggregate Commitments of the Terminating Banks, then the
Commitment of each such Bank shall be increased pro rata on the relative basis
of the amount of increase it so elected such that the aggregate amount of all
such increases shall be equal to the aggregate Commitments of the Terminating
Banks.  Each increase in the Commitment of a Continuing Bank shall be evidenced
by a written instrument executed by such Continuing Bank, the Company and the
Agent, and shall take effect on the Effective Date.  Notwithstanding any
provision of this Agreement to the contrary, any notice by any Continuing Bank
of its willingness to increase its Commitment as provided in this subsection
2.4(c) shall be revocable by such Bank in its sole and absolute discretion at
any time prior to the Effective Date.

              (d)  In the event the aggregate Commitments of any Terminating
Banks shall exceed the aggregate amount by which the Continuing Banks have
agreed to increase their Commitments pursuant to subsection 2.4(c), the Company
may, with the approval of the Agent, designate one or more other banking
institutions willing to extend Commitments until the Requested Termination Date
in an aggregate amount not greater than such excess.  Any such banking
institution (an "Additional Bank") shall, on the Effective Date, execute and
deliver to the Company and the Agent a Commitment Transfer Supplement,
satisfactory to the Company and the Agent, setting forth the amount of such
Additional Bank's Commitment and containing its agreement to become, and to
perform all the obligations of, a Bank hereunder, and the Commitment of such
Additional Bank shall become effective on the Effective Date.  Notwithstanding
any provision of this Agreement to the contrary, any notice by any Additional
Bank of its willingness to become a Bank hereunder shall be revocable by such
Additional Bank in its sole and absolute discretion at any time prior to the
Effective Date.

              (e)  The Company shall deliver to each Continuing Bank and each
Additional Bank, on the Effective Date, in exchange for the Notes held by such
Bank, new Notes, maturing on the Requested Termination Date, in the principal
amount of such Bank's Commitment after giving effect to the adjustments made
pursuant to this subsection 2.4.
<PAGE>   29
                                                                              25

              (f)  If the Required Banks shall have elected to extend their
Commitments as provided in this subsection 2.4 and the Company has not revoked
its request to extend the Termination Date as provided in this subsection 2.4,
then (i) the Commitments of the Continuing Banks and any Additional Banks shall
continue until the Requested Termination Date specified in the notice from the
Company, and as to such Banks the term "Termination Date", as used herein shall
mean such Requested Termination Date; (ii) the Commitments of any Terminating
Bank shall continue until the Effective Date, and shall then terminate (as to
any Terminating Bank, the term "Termination Date", as used herein, shall mean
the Effective Date) upon the payment in full of the outstanding principal
amount, together with accrued interest to such date and any other amounts owed
by the Company to such Terminating Bank pursuant to any Loan Document of the
Loans of such Terminating Bank; and (iii) from and after the Effective Date, the
term "Banks" shall be deemed to include the Additional Banks and (except with
respect to subsections 2.15 and 10.5 to the extent the rights under such
subsections arise after the Termination Date in respect of Terminating Banks)
to exclude the Terminating Banks.

              2.5  Optional Prepayments.  The Company may on the last day of
the relevant Interest Period if the Revolving Credit Loans to be prepaid are in
whole or in part Eurodollar Loans, or at any time and from time to time if the
Revolving Credit Loans to be prepaid are Alternate Base Rate Loans, prepay the
Revolving Credit Loans, in whole or in part, without premium or penalty, upon
at least three Business Days' irrevocable notice to the Agent, specifying the
date and amount of prepayment and whether the prepayment is of Eurodollar Loans
or Alternate Base Rate Loans or a combination thereof, and if of a combination
thereof, the amount of prepayment allocable to each.  Upon receipt of such
notice the Agent shall promptly notify each Bank thereof.  If such notice is
given, the payment amount specified in such notice shall be due and payable on
the date specified therein, together with accrued interest to such date on the
amount prepaid. Partial prepayments shall be in an aggregate principal amount
of $5,000,000, or a whole multiple thereof, and may only be made if, after
giving effect thereto, subsection 2.6(c) shall not have been contravened.

              2.6  Conversion Options; Minimum Amount of Loans.
(a) The Company may elect from time to time to convert Eurodollar Loans to
Alternate Base Rate Loans by giving the Agent at least two Business Days' prior
irrevocable notice of such election (given before 10:00 A.M., New York City
time, on the date on which such notice is required), provided that any such
conversion of Eurodollar Loans shall, subject to the fourth following sentence,
only be made on the last day of an Interest Period with respect thereto.  The
Company may elect from time to time to convert Alternate Base Rate Loans to
Eurodollar Loans by giving the Agent at least three Business Days' prior
irrevocable notice of such election (given before 11:30 A.M., New York City
<PAGE>   30
                                                                              26

time, on the date on which such notice is required).  Upon receipt of such
notice, the Agent shall promptly notify each Bank thereof.  Promptly following
the date on which such conversion being made each Bank shall take such action
as is necessary to transfer its portion of such Revolving Credit Loans to its
Domestic Lending Office or its Eurodollar Lending Office, as the case may be.   
All or any part of outstanding Eurodollar Loans and Alternate Base Rate Loans
may be converted as provided herein, provided that, unless the Majority Banks
otherwise agree,  (i) no Revolving Credit Loan may be converted into a
Eurodollar Loan when any Event of Default has occurred and is continuing, (ii)
partial conversions shall be in an aggregate principal amount of $5,000,000 or
a whole multiple thereof, and (iii) any such conversion may only be made if,
after giving effect thereto, subsection 2.6(c) shall not have bean contravened.

              (b)  Any Eurodollar Loans may be continued as such upon the
expiration of an Interest Period with respect thereto by compliance by the
Company with the notice provisions contained in subsection 2.6(a); provided
that, unless the Majority Banks otherwise agree, no Eurodollar Loan may be
continued as such when any Event of Default has occurred and is continuing, but
shall be automatically converted to an Alternate Base Rate Loan on the last day
of the then current Interest Period with respect thereto.  The Agent shall
notify the Banks promptly that such automatic conversion contemplated by this
subsection 2.6 (b) will occur.

              (c)  All borrowings, conversions, payments, prepayments and
selection of Interest Periods hereunder shall be in such amounts and be made
pursuant to such elections so that, after giving effect thereto, the aggregate
principal amount of the Loans comprising any Eurodollar Tranche shall not be
less than $10,000,000.  At no time shall there be more than 6 Eurodollar
Tranches.

              2.7  Interest Rate and Payment Dates for Revolving Credit Loans.
              (a)  The Eurodollar Loans comprising each Eurodollar Tranche 
shall bear interest for each day during each Interest Period with respect 
thereto on the unpaid principal amount thereof at a rate per annum equal to 
the Eurodollar Rate plus the Applicable Margin.

              (b)  Alternate Base Rate Loans shall bear interest for each day
from and including the date thereof on the unpaid principal amount thereof at a
rate per annum equal to the Altermate Base Rate plus the Applicable Margin.

              (c)  If all or a portion of the (i) principal amount of any
Loans,  (ii) any interest payable thereon or (iii) any fee or other amount
payable hereunder shall not be paid when due (whether at the stated maturity,
by acceleration or otherwise), such overdue amount shall bear interest at a
rate per annum which is 2% above the Alternate Base Rate, and any overdue 
interest or
<PAGE>   31
                                                                              27

other amount payable hereunder shall bear interest at a rate per annum which is
2% above the Alternate Base Rate, in each case from the date of such
non-payment until paid in full (after as well as before judgment).  If all or a
portion of the principal amount of any Loans shall not be paid when due
(whether at stated maturity, by acceleration or otherwise), each Eurodollar
Loan shall, unless the Majority Banks otherwise agree, be converted to an
Alternate Base Rate Loan at the end of the last Interest Period with respect
thereto.

              (d)  Interest shall be payable in arrears on each Interest
Payment Date.

              2.8  Computation of Interest and Fees.   (a)  Interest in respect
of Alternate Base Rate Loans shall be calculated on the basis of a (i) 365-day
(or 366-day, as the case may be) year for the actual days elapsed when such
Alternate Base Rate Loans are based on the Prime Rate, and (ii) a 360-day year
for the actual days elapsed when based on the Base CD Rate or the Federal Funds
Effective Rate.  Interest in respect of Eurodollar Loans shall be calculated on
the basis of a 360-day year for the actual days elapsed.  The Agent shall as
soon as practicable notify the Company and the Banks of each determination of a
Eurodollar Rate. Any change in the interest rate on a Revolving Credit Loan
resulting from a change in the Alternate Base Rate or the Applicable Margin or
the Eurocurrency Reserve Requirements shall become effective as of the opening
of business on the day on which such change in the Alternate Base Rate is
announced, such Applicable Margin changes as provided herein or such change in
or the Eurocurrency Reserve Requirements shall become effective, as the case
may be.  The Agent shall as soon as practicable notify the Company and the
Banks of the effective date and the amount of each such change.

              (b)  Each determination of an interest rate by the Agent pursuant
to any provision of this Agreement shall be conclusive and binding on the
Company and the Banks in the absence of manifest error.  The Agent shall, at
the request of the Company, deliver to the Company a statement showing the
quotations used by the Agent in determining any interest rate pursuant to
subsection 2.7(a) or (c).

              (c)  If any Reference Bank's Commitment shall terminate
(otherwise than on termination of all the Commitments), or its Revolving Credit
Loans shall be assigned for any reason whatsoever, such Reference Bank shall
thereupon cease to be a Reference Bank, and if, as a result of the foregoing,
there shall only be one Reference Bank remaining, then the Agent (after
consultation with the Company and the Banks) shall, by notice to the Company
and the Banks, designate another Bank as a Reference Bank so that there shall
at all times be at least two Reference Banks.
<PAGE>   32
                                                                              28

              (d)  Each Reference Bank shall use its best efforts to furnish
quotations of rates to the Agent as contemplated hereby. If any of the
Reference Banks shall be unable or otherwise fails to supply such rates to the
Agent upon its request, the rate of interest shall be determined on the basis
of the quotations of the remaining Reference Banks or Reference Bank.

              (e)  Facility fees shall be computed on the basis of a 365-day
year for the actual days elapsed.

              2.9  Inability to Determine Interest Rate.  In the event that:

              (i)  the Agent shall have determined (which determination shall
         be conclusive and binding upon the Company) that, by reason of
         circumstances affecting the interbank eurodollar market generally,
         adequate and reasonable means do not exist for ascertaining the
         Eurodollar Rate for any requested Interest Period;

             (ii)  only one of the Reference Banks is able to obtain bids
         for its Dollar deposits for such Interest Period in the manner
         contemplated by the term "Eurodollar Rate"; or

            (iii)  the Agent shall have received notice prior to the first
         day of such Interest Period from Banks constituting the Majority Banks
         that the interest rate determined pursuant to subsection 2.7(a) for
         such Interest Period does not accurately reflect the cost to such
         Banks (as conclusively certified by such Banks) of making or 
         maintaining their affected Loans during such Interest Period;

with respect to (A) proposed Revolving Credit Loans that the Company has
requested be made as Eurodollar Loans, (B) Eurodollar Loans that will result
from the requested conversion of Alternate Base Rate Loans into Eurodollar
Loans or (C) the continuation of Eurodollar Loans beyond the expiration of the
then current Interest Period with respect thereto, the Agent shall forthwith
give facsimile or telephonic notice of such determination to the Company and
the Banks at least one day prior to, as the case may be, the requested
Borrowing Date for such Eurodollar Loans, the conversion date of such Loans or
the last day of such Interest Period.  If such notice is given (x) any
requested Eurodollar Loans shall be made as Alternate Base Rate Loans, (y) any
Alternate Base Rate Loans that were to have been converted to Eurodollar Loans
shall be continued as Alternate Base Rate Loans and (z) any outstanding
Eurodollar Loans shall be converted, on the last day of the then current
Interest Period with respect thereto, to Alternate Base Rate Loans.  Until such
notice has been withdrawn by the Agent, no further Eurodollar Loans shall be
made, nor shall the Company have the right to convert Alternate Base Rate Loans
to Eurodollar Loans.  The Agent shall withdraw
<PAGE>   33
                                                                              29

such notice upon its determination that the event or events which gave rise to
such notice no longer exist.

             2.10  Pro Rata Borrowinqs and Payments.   (a)  Each borrowing by
the Company of Revolving Credit Loans shall be made ratably from the Banks in
accordance with their Commitment Percentages.

             (b)  Whenever any payment received by the Agent under this
Agreement or any Note is insufficient to pay in full all amounts then due and
payable to the Agent and the Banks under this Agreement and the Notes, and the
Agent has not received a Payment Sharing Notice (or if the Agent has received a
Payment Sharing Notice but the Event of Default specified in such Payment
Sharing Notice has been cured or waived), such payment shall be distributed and
applied by the Agent and the Banks in the following order:  first, to the
payment of fees and expenses due and payable to the Agent under and in
connection with this Agreement; second, to the payment of all expenses due and
payable under subsection 10.5(a), ratably among the Banks in accordance with
the aggregate amount of such payments owed to each such Bank; third, to the
payment of fees due and payable under subsection 2.3, ratably among the Banks
in accordance with their Commitment Percentages; fourth, to the payment of
interest then due and payable under the Notes, ratably among the Banks in
accordance with the aggregate amount of interest owed to each such Bank; and
fifth, to the payment of the principal amount of the Notes which is then due
and payable, ratably among the Banks in accordance with the aggregate principal
amount owed to each such Bank.

             (c)  After the Agent has received a Payment Sharing Notice which 
remains in effect, all payments received by the Agent under this Agreement
or any Note shall be distributed and applied by the Agent and the Banks in the
following order: first, to the payment of all amounts described in clauses 
first through third of the foregoing paragraph (b), in the order set
forth therein; and second, to the payment of the interest accrued on and the
principal amount of all of the Notes, regardless of whether any such amount is
then due and payable, ratably among the Banks in accordance with the aggregate
accrued interest plus the aggregate principal amount owed to such Bank.

             (d)  all payments (including prepayments) to be made by the
Company on account of principal, interest and fees shall be made without
set-off or counterclaim and shall be made to the Agent, for the account of the
Banks, at the Agent's office set forth in subsection 10.2, in lawful money of
the United States of America and in immediately available funds.  The Agent
shall distribute such payments to the Banks promptly upon receipt in like funds
as received.  If any payment hereunder (other than payments on the CAF Loans
made pursuant to a LIBOR Auction Advance Request) becomes due and payable on a
day other than a Business Day, such payment shall be extended to the next
<PAGE>   34
                                                                              30

succeeding Business Day, and, with respect to payments of principal, interest
thereon shall be payable at the then applicable rate during such extension.  If
any payment on a CAF Loan made pursuant to a LIBOR Auction Advance Request
becomes due and payable on a day other than a Working Day, the maturity thereof
shall be extended to the next succeeding Working Day unless the result of such
extension would be to extend such payment into another calendar month in which
event such payment shall be made on the immediately preceding Working Day.

               (e)  Unless the Agent shall have been notified in writing by any
Bank prior to a Borrowing Date that such Bank will not make the amount which
would constitute its Commitment Percentage of the borrowing of Revolving Credit
Loans on such date available to the Agent, the Agent may assume that such Bank
has made such amount available to the Agent on such Borrowing Date, and the
Agent may, in reliance upon such assumption, make available to the Company a
corresponding amount.  If such amount is made available to the Agent on a date
after such Borrowing Date, such Bank shall pay to the Agent on demand an amount
equal to the product of (i) the daily average Federal Funds Effective Rate
during such period as quoted by the Agent, times (ii) the amount of such Bank's
Commitment Percentage of such borrowing, times (iii) a fraction the numerator
of which is the number of days that elapse from and including such Borrowing
Date to the date on which such Bank's Commitment Percentage of such borrowing
shall have become immediately available to the Agent and the denominator of
which is 360.  A certificate of the Agent submitted to any Bank with respect to
any amounts owing under this subsection 2.10 (e) shall be conclusive, absent
manifest error.  If such Bank's Commitment Percentage of such borrowing is not
in fact made available to the Agent by such Bank within three Business Days of
such Borrowing Date, the Agent shall be entitled to recover such amount with
interest thereon at the rate per annum applicable to Alternate Base Rate Loans
hereunder, on demand, from the Company.

               2.11  Illegality.  Notwithstanding any other provisions herein,
if after the date hereof the adoption of or any change in any Requirement of
Law or in the interpretation or application thereof shall make it unlawful for
any Bank to make or maintain Eurodollar Loans as contemplated by this
Agreement, (a) the Bank shall, within 30 Working Days after it becomes aware of
such fact, notify the Company, through the Agent, of such fact, (b) the
commitment of such Bank hereunder to make Eurodollar Loans or convert Alternate
Base Rate Loans to Eurodollar Loans shall forthwith be cancelled and (c) such
Bank's Revolving Credit Loans then outstanding as Eurodollar Loans, if any,
shall be converted automatically to Alternate Base Rate Loans on the respective
last days of the then current Interest Periods for such Revolving Credit Loans
or within such earlier period as required by law. Each Bank shall take such
action as may be reasonably available to it without legal or financial
disadvantage (including changing its Eurodollar Lending Office) to prevent the
adoption of or any
<PAGE>   35
                                                                              31

change in any such Requirement of Law from becoming applicable to it.

             2.12  Requirements of Law.   (a)  If after the date hereof the
adoption of or any change in any Requirement of Law or in the interpretation or
application thereof or compliance by any Bank with any request or directive
(whether or not having the force of law) after the date hereof from any central
bank or other Governmental Authority:

             (i)  shall subject any Bank to any tax of any kind whatsoever
         with respect to this Agreement, any Revolving Credit Note, any Letter
         of Credit, any Application or any Eurodollar Loans made by it, or
         change the basis of taxation of payments to such Bank of principal,
         facility fee, interest or any.other amount payable hereunder in
         respect of Revolving Credit Loans (except for changes in the rate of
         tax on the overall net income of such Bank);

            (ii)  shall impose, modify or hold applicable any reserve,
         special deposit, compulsory loan or similar requirement against
         assets held by, or deposits or other liabilities in or for the account
         of, advances or loans by, or other credit extended by, or any other
         acquisition of funds by, any office of such Bank which are not
         otherwise included in the determination of the Eurodollar Rate
         hereunder; or

            (iii)  shall impose on such Bank any other condition;

and the result of any of the foregoing is to increase the cost to such Bank, by
any amount which such Bank deems to be material, of making, renewing or
maintaining advances or extensions of credit (including, without limitation,
issuing or participating in Letters of Credit) or to reduce any amount
receivable hereunder, in each case, in respect thereof, then, in any such case,
the Company shall promptly pay such Bank, upon its demand, any additional
amounts necessary to compensate such Bank for such additional cost or reduced
amount receivable.  If a Bank becomes entitled to claim any additional amounts
pursuant to this subsection 2.12(a), it shall, within 30 Business Days after it
becomes aware of such fact, notify the Company, through the Agent, of the event
by reason of which it has become so entitled. A certificate as to any
additional amounts payable pursuant to the foregoing sentence submitted by such
Bank, through the Agent, to the Company shall be conclusive in the absence of
manifest error.  Each Bank shall take such action as may be reasonably
available to it without legal or financial disadvantage (including changing its
Eurodollar Lending Office) to prevent any such Requirement of Law or change
from becoming applicable to it. This covenant shall survive the termination of
this Agreement and payment of the outstanding Revolving Credit Notes and all
other amounts payable hereunder.
<PAGE>   36
                                                                              32

              (b)  In the event that after the date hereof a Bank is required
to maintain reserves of the type contemplated by the definition of "Eurocurrency
Reserve Requirements", such Bank may require the Company to pay, promptly after
receiving notice of the amount due, additional interest on the related
Eurodollar Loan of such Bank at a rate per annum determined by such Bank up to
but not exceeding the excess of (i) (A) the applicable Eurodollar Rate divided
by (B) one minus the Eurocurrency Reserve Requirements over (ii) the applicable
Eurodollar Rate.  Any Bank wishing to require payment of any such additional
interest on account of any of its Eurodollar Loans shall notify the Company no
more than 30 Working Days after each date on which interest is payable on such
Eurodollar Loan of the amount then due it under this subsection 2.12 (b), in
which case such additional interest on such Eurodollar Loan shall be payable to
such Bank at the place indicated in such notice.  Each such notification shall
be accompanied by such information as the Company may reasonably request.

              2.13  Capital Adequacy.  If any Bank shall have determined that
after the date hereof the adoption of or any change in any Requirement of Law
regarding capital adequacy or in the interpretation or application thereof or
compliance by such Bank or any corporation controlling such Bank with any
request or directive after the date hereof regarding capital adequacy (whether
or not having the force of law) from any central bank or Governmental
Authority, does or shall have the effect of reducing the rate of return on such
Bank's or such corporation's capital as a consequence of its obligations
hereunder or under any Letter of Credit to a level below that which such Bank
or such corporation could have achieved but for such adoption, change or
compliance (taking into consideration such Bank's or such corporation's
policies with respect to capital adequacy) by an amount which is reasonably
deemed by such Bank to be material, then from time to time, promptly after
submission by such Bank, through the Agent, to the Company of a written request
therefor (such request shall include details reasonably sufficient to establish
the basis for such additional amounts payable and shall be submitted to the
Company within 30 Working Days after it becomes aware of such fact), the
Company shall promptly pay to such Bank such additional amount or amounts as
will compensate such Bank for such reduction.  The agreements in this
subsection 2.13 shall survive the termination of this Agreement and payment of
the Loans and the Notes and all other amounts payable hereunder.

              2.14  Taxes.  (a)  All payments made by the Company under this
Agreement shall be made free and clear of, and without reduction or withholding
for or on account of, any present or future income, stamp or other taxes,
levies, imposts, duties, charges, fees, deductions or withholdings, now or
hereafter imposed, levied, collected, withheld or assessed by any Governmental
Authority excluding, in the case of the Agent and each Bank, net income and
franchise taxes imposed on the Agent or
<PAGE>   37
                                                                              33

such Bank by the jurisdiction under the laws of which the Agent or such Bank is
organized or any political subdivision or taxing authority thereof or therein,
or by any jurisdiction in which such Bank's Domestic Lending Office or
Eurodollar Lending Office, as the case may be, is located or any political
subdivision or taxing authority thereof or therein (all such non-excluded
taxes, levies, imposts, deductions, charges or withholdings being hereinafter
called "Taxes").  If any Taxes are required to be withheld from any amounts
payable to the Agent or any Bank hereunder or under the Notes, the amounts so
payable to the Agent or such Bank shall be increased to the extent necessary to
yield to the Agent or such Bank (after payment of all Taxes) interest or any
such other amounts payable hereunder at the rates or in the amounts specified
in this Agreement and the Notes.  Whenever any Taxes are payable by the
Company, as promptly as possible thereafter, the Company shall send to the
Agent for its own account or for the account of such Bank, as the case may be,
a certified copy of an original official receipt received by the Company
showing payment thereof.  If the Company fails to pay any Taxes when due to the
appropriate taxing authority or fails to remit to the Agent the required
receipts or other required documentary evidence, the Company shall indemnify
the Agent and the Banks for any incremental taxes, interest or penalties that
may become payable by the Agent or any Bank as a result of any such failure.

              (b)  Each Bank that is not incorporated under the laws of the
United States of America or a state thereof agrees that it will deliver to the
Company and the Agent (i) two duly completed copies of United States Internal
Revenue Service Form 1001 or 4224 or successor applicable form, as the case may
be, certifying in each case that such Bank is entitled to receive payments
under this Agreement and the Notes payable to it, without deduction or
withholding of any United States federal income taxes, and (ii) Internal Revenue
Service Form W-8 or W-9 or successor applicable form, as the case may be, to
establish an exemption from United States backup withholding tax.  Each Bank
which delivers to the Company and the Agent a Form 1001 or 4224 and Form W-8 or
W-9 pursuant to the next preceding sentence further undertakes to deliver to
the Company and the Agent two further copies of the said letter and Form 1001
or 4224 and Form W-8 or W-9, or successor applicable forms, or other manner of
certification, as the case may be, on or before the date that any such letter
or form expires or becomes obsolete or after the occurrence of any event
requiring a change in the most recent letter and form previously delivered by
it to the Company, and such extensions or renewals thereof as may reasonably be
requested by the Company, certifying in the case of a Form 1001 or 4224 that
such Bank is entitled to receive payments under this Agreement without
deduction or withholding of any United States federal income taxes, unless in
any such cases an event (including without limitation any change in treaty, law
or regulation) has occurred prior to the date on which any such delivery would
otherwise be required which renders all such forms
<PAGE>   38
                                                                              34

inapplicable or which would prevent such Bank from duly completing and
delivering any such letter or form with respect to it and such Bank advises the 
Company that it is not capable of receiving payments without any deduction or
withholding of United States federal income tax, and in the case of a Form W-8
or W-9, establishing an exemption from United States backup withholding tax.

              (c)  The agreements in subsection 2.14 shall survive the
termination of this Agreement and the payment of the Notes and all other
amounts payable hereunder.

              2.15  Indemnity.  The Company agrees to indemnify each Bank and
to hold each Bank harmless from any loss or expense (other than any loss of
anticipated margin or profit) which such Bank may sustain or incur as a
consequence of (a) default by the Company in payment when due of the principal
amount of or interest on any Eurodollar Loans of such Bank,  (b) default by the
Company in making a borrowing or conversion after the Company has given a
notice of borrowing in accordance with subsection 2.1 (c) or a notice of
continuation or conversion pursuant to subsection 2.6, (c) default by the
Company in making any prepayment after the Company has given a notice in
accordance with subsection 2.5 or (d) the making of a prepayment of a
Eurodollar Loan on a day which is not the last day of an Interest Period with
respect thereto, including, without limitation, in each case, any such loss or
expense arising from the reemployment of funds obtained by it to maintain its
Eurodollar Loans hereunder or from fees payable to terminate the deposits from
which such funds were obtained.  Any Bank claiming any amount under this
subsection 2.15 shall provide calculations, in reasonable detail, of the amount
of its loss or expense.  This covenant shall survive termination of this
Agreement and payment of the outstanding Notes and all other amounts payable
hereunder.

              2.16  Application of Proceeds of Loans.  Subject to the
provisions of the following sentence, the Company may use the proceeds of the
Loans for any lawful corporate purpose.  The Company will not, directly or
indirectly, apply any part of the proceeds of any such Loan for the purpose of
"purchasing" or "carrying" any "margin stock" within the respective meanings of
each of the quoted terms under Regulation U, or to refund any indebtedness
incurred for such purpose.

              2.17  Notice of Certain Circumstances; Assignment of Commitments 
Under Certain Circumstances.   (a)  Any Bank claiming any additional amounts
payable pursuant to subsections 2.12, 2.13 or 2.14 or exercising its rights
under subsection 2.11, shall, in accordance with the respective provisions
thereof, provide notice to the Company and the Agent.  Such notice to the
Company and the Agent shall include details reasonably sufficient to establish
the basis for such additional amounts payable or the rights to be exercised by
the Bank.
<PAGE>   39
                                                                              35

              (b)  Any Bank claiming any additional amounts payable pursuant to
subsections 2.12, 2.13 or 2.14 or exercising its rights under subsection 2.11,
shall use reasonable efforts (consistent with legal and regulatory
restrictions) to file any certificate or document requested by the Company or
to change the jurisdiction of its applicable lending office if the making of
such filing or change would avoid the need for or reduce the amount of any such
additional amounts which may thereafter accrue or avoid the circumstances
giving rise to such exercise and would not, in the sole determination of such
Bank, be otherwise disadvantageous to such Bank.

              (c)  In the event that the Company shall be required to make 
any additional payments to any Bank pursuant to subsections 2.12, 2.13
or 2.14 or any Bank shall exercise its rights under subsection 2.11, the
Company shall have the right at its own expense, upon notice to such Bank and
the Agent, to require such Bank to transfer and to assign without recourse (in
accordance with and subject to the terms of subsection 10.6) all its interest,
rights and obligations under this Agreement to another financial institution
(including any Bank) acceptable to the Agent (which approval shall not be
unreasonably withheld) which shall assume such obligations; provided that (i) no
such assignment shall conflict with any Requirement of Law and (ii) such
assuming financial institution shall pay to such Bank in immediately available
funds on the date of such assignment the outstanding principal amount of such
Bank's Notes together with accrued interest thereon and all other amounts
accrued for its account or owed to it hereunder, including, but not limited to
additional amounts payable under subsections 2.3, 2.11, 2.12, 2.13, 2.14 and
2.15.

              SECTION 3. LETTERS OF CREDIT

              3.1  L/C Sublimit.  (a)  Subject to the terms and conditions 
hereof, the Issuing Bank, in reliance on the agreements of the other
Banks set forth in subsection 3.4 (a), agrees to issue letters of credit
("Letters of Credit") for the account of the Company on any Business Day during
the Commitment Period in such form as may be approved from time to time by the
Issuing Bank; provided that the Issuing Bank shall have no obligation to issue
any Letter of Credit if, after giving effect to such issuance, (i) the L/C
Obligations would exceed the L/C Sublimit or (ii) the Available Commitment
would be less than zero.  Each Letter of Credit shall (i) be denominated in     
Dollars, (ii) be a standby letter of credit issued to support obligations of
the Company or its Subsidiaries, contingent or otherwise (a "Standby Letter of
Credit") and (iii) expire no later than the Termination Date.

              (b)  Each Letter of Credit shall be subject to the Uniform 
Customs and, to the extent not inconsistent therewith, the laws of the
State of New York.
<PAGE>   40
                                                                              36

              (c)  The Issuing Bank shall not at any time be obligated to issue
any Letter of Credit hereunder if such issuance would conflict with, or cause
the Issuing Bank or any L/C Participant to exceed any limits imposed by, any
applicable Requirement of Law.

              (d)  No Letter of Credit shall have an expiry date more than 365
days after its date of issuance.

              3.2  Procedure for Issuance of Letters of Credit.  The Company
may from time to time request that the Issuing Bank issue a Letter of Credit by
delivering to the Issuing Bank at its address for notices specified herein an
Application therefor, completed to the satisfaction of the Issuing Bank, and
such other certificates, documents and other papers and information as the
Issuing Bank may request.  Upon receipt of any Application, the Issuing Bank
will process such Application and the certificates, documents and other papers
and information delivered to it in connection therewith in accordance with its
customary procedures and shall promptly issue the Letter of Credit requested
thereby (but in no event shall the Issuing Bank be required to issue any Letter
of Credit earlier than three Business Days after its receipt of the
Application therefor and all such other certificates, documents and other
papers and information relating thereto) by issuing the original of such Letter
of Credit to the beneficiary thereof or as otherwise may be agreed by the
Issuing Bank and the Company.  The Issuing Bank shall furnish a copy of such
Letter of Credit to the Company promptly following the issuance thereof.

              3.3  Fees, Commissions and Other Charges.   (a)    The Company
shall pay to the Agent, for the account of the Issuing Bank and the L/C
Participants, a letter of credit commission with respect to each Letter of
Credit, computed for the period from the date of issuance to the expiry date
thereof at the rate of .45% per annum, calculated on the basis of a 365-day (or
366-day, as the case may be) year, on the face amount of each such Letter of
Credit, of which .125% per annum shall be payable to the Issuing Bank and .325%
per annum shall be payable to the L/C Participants to be shared ratably among
them in accordance with their respective Commitment Percentages.  Such fee
shall be payable in advance on the date of issuance of each Letter of Credit
and on each L/C Fee Payment Date to occur thereafter and shall be
nonrefundable.

              (b)  In addition to the foregoing fees, the Company shall pay or
reimburse the Issuing Bank for such normal and customary costs and expenses as
are incurred or charged by the Issuing Bank in issuing, effecting payment
under, amending or otherwise administering any Letter of Credit.

              (c)  The Agent shall, promptly following its receipt thereof, 
distribute to the Issuing Bank and the L/C Participants
<PAGE>   41
                                                                              37

all fees received by the Agent for their respective accounts pursuant to this
subsection.

              3.4  L/C Participation.   (a)  The Issuing Bank irrevocably 
agrees to grant and hereby grants to each L/C Participant, and, to
induce the Issuing Bank to issue Letters of Credit hereunder, each L/C
Participant irrevocably agrees to accept and purchase and hereby accepts and
purchases from the Issuing Bank, on the terms and conditions hereinafter
stated, for such L/C Participant's own account and risk an undivided interest
equal to such L/C Participant's Commitment Percentage in the Issuing Bank's
obligations and rights under each Letter of Credit issued hereunder and the
amount of each draft paid by the Issuing Bank thereunder.  Each L/C Participant
unconditionally and irrevocably agrees with the Issuing Bank that, if a draft
is paid under any Letter of Credit for which the Issuing Bank is not reimbursed
in full by the Company in accordance with the terms of this Agreement, such L/C
Participant shall pay to the Issuing Bank upon demand at the Issuing Bank's
address for notices specified herein an amount equal to such L/C Participant's
Commitment Percentage of the amount of such draft, or any part thereof, which
is not so reimbursed.

              (b)  If any amount required to be paid by any L/C Participant to
the Issuing Bank pursuant to subsection 3.4(a) in respect of any unreimbursed
portion of any payment made by the Issuing Bank under any Letter of Credit is
paid to the Issuing Bank within three Business Days after the date such payment
is due, such L/C Participant shall pay to the Issuing Bank on demand an amount
equal to the product of (i) such amount, times (ii) the daily average Federal
funds rate, as quoted by the Issuing Bank, during the period from and including
the date such payment is required to the date on which such payment is
immediately available to the Issuing Bank, times (iii) a fraction the numerator
of which is the number of days that elapse during such period and the
denominator of which is 360.  If any such amount required to be paid by any
L/C Participant pursuant to subsection 3.4(a) is not in fact made available to
the Issuing Bank by such L/C Participant within three Business Days after the
date such payment is due, the Issuing Bank shall be entitled to recover from
such L/C Participant, on demand, such amount with interest thereon calculated 
from such due date at the rate per annum applicable to Revolving Credit Loans 
that are Alternate Base Rate Loans hereunder.  A certificate of the Issuing Bank
submitted to any L/C Participant with respect to any amounts owing under this
subsection shall be conclusive in the absence of manifest error.

              (c)  Whenever, at any time after the Issuing Bank has made
payment under any Letter of Credit and has received from any L/C Participant
its pro rata share of such payment in accordance with subsection 3.4(a), the
Issuing Bank receives any payment related to such Letter of Credit (whether
directly from the Company or otherwise, including proceeds of collateral, if
any, applied thereto by the Issuing Bank), or any payment of interest
<PAGE>   42
                                                                              38

on account thereof, the Issuing Bank will distribute to such L/C Participant
its pro rata share thereof; provided, however, that in the event that any such
payment received by the Issuing Bank shall be required to be returned by the
Issuing Bank, such L/C Participant shall return to the Issuing Bank the portion
thereof previously distributed by the Issuing Bank to it.

               3.5  Reimbursement Obligation of the Borrower.  The Company
agrees to reimburse the Issuing Bank on each date on which the Issuing Bank
notifies the Company of the date and amount of a draft presented under any
Letter of Credit and paid by the Issuing Bank for the amount of (a) such draft
so paid and (b) any taxes, fees, charges or other costs or expenses incurred by
the Issuing Bank in connection with such payment.  Each such payment shall be
made to the Issuing Bank at its address for notices specified herein in lawful
money of the United States of America and in immediately available funds.
Interest shall be payable on any and all amounts remaining unpaid by the
Company under this subsection from the date such amounts become payable
(whether at stated maturity, by acceleration or otherwise) until payment in
full at a rate per annum equal to the Alternate Base Rate plus 2%.

               3.6  Obligations Absolute.  The Company's obligations under
this Section 3 shall be absolute and unconditional under any and all
circumstances and irrespective of any set-off, counterclaim or defense to
payment which the Company may have or have had against the Issuing Bank or any
beneficiary of a Letter of Credit.  The Company also agrees with the Issuing
Bank that the Issuing Bank shall not be responsible for, and the Company's
Reimbursement Obligations under subsection 3.5 shall not be affected by, among
other things, the validity or genuineness of documents or of any endorsements
thereon, even though such documents shall in fact prove to be invalid,
fraudulent or forged, or any dispute between or among the Company and any
beneficiary of any Letter of Credit or any other party to which such Letter of
Credit may be transferred or any claims whatsoever of the Company against any
beneficiary of such Letter of Credit or any such transferee.  The Issuing Bank
shall not be liable for any error, omission, interruption or delay in
transmission, dispatch or delivery of any message or advice, however
transmitted, in connection with any Letter of Credit, except for errors or
omissions caused by the Issuing Bank's gross negligence or willful misconduct.
The Company agrees that any action taken or omitted by the Issuing Bank under
or in connection with any Letter of Credit or the related drafts or documents,
if done in the absence of gross negligence of willful misconduct and in
accordance with the standards of care specified in the Uniform Commercial Code
of the State of New York, shall be binding on the Company and shall not result
in any liability of the Issuing Bank to the Company.

               3.7  Letter of Credit Payments.  If any draft shall be presented
for payment under any Letter of Credit, the Issuing
<PAGE>   43
                                                                              39

Bank shall promptly notify the Company of the date and amount thereof. The
responsibility of the Issuing Bank to the Company in connection with any draft
presented for payment under any Letter of Credit shall, in addition to any
payment obligation expressly provided for in such Letter of Credit, be limited
to determining that the documents (including each draft) delivered under such
Letter of Credit in connection with such presentment are in conformity with
such Letter of Credit.

              3.8  Application.  To the extent that any provision of any
Application related to any Letter of Credit is inconsistent with the provisions
of this Section 3, the provisions of this Section 3 shall apply.

              SECTION 4.   REPRESENTATIONS AND WARRANTIES

              The Company hereby represents and warrants that:

              4.1  Corporate Existence; Compliance with Law.  Each of the
Company and its Subsidiaries (a) is duly organized, validly existing and in
good standing under the laws of the jurisdiction of its organization, (b) has
the corporate power and authority, and the legal right, to make, deliver and
perform the Loan Documents to which it is a party, to own and operate its
property, to lease the property it operates as lessee and to conduct the
business in which it is currently engaged, (c) is duly qualified as a foreign
corporation and in good standing under the laws of each jurisdiction where its
ownership, lease or operation of property or the conduct of its business
requires such qualification and (d) is in compliance with all Requirements of
Law, including, without limitation, HMO Regulations and Insurance Regulations,
except to the extent that the failure to be so qualified or to comply therewith
could not have a Material Adverse Effect.

              4.2  No Legal Obstacle to Agreement; Enforceability. Neither the
execution and delivery of any Loan Document, nor the making by the Company of
any borrowings hereunder, nor the consummation of any transaction herein or
therein referred to or contemplated hereby or thereby nor the fulfillment of
the terms hereof or thereof or of any agreement or instrument referred to in
this Agreement, has constituted or resulted in or will constitute or result in
a breach of any Requirement of Law, including without limitation, HMO
Regulations and Insurance Regulations, or any Contractual Obligation of the
Company or any of its Subsidiaries, or result in the creation under any
agreement or instrument of any security interest, lien, charge or encumbrance
upon any of the assets of the Company or any of its Subsidiaries.  No approval,
authorization or other action by any Governmental Authority, including, without
limitation, HMO Regulators and Insurance Regulators, or any other Person is
required to be obtained by the Company or any of its Subsidiaries in connection
with the execution, delivery and performance of
<PAGE>   44
                                                                              40

this Agreement or the other Loan Documents or the transactions contemplated
hereby or thereby, or the making of any borrowing by the Company hereunder.
This Agreement has been, and each other Loan Document will be, duly executed
and delivered on behalf of the Company.  This Agreement constitutes, and each
other Loan Document when executed and delivered will constitute, a legal, valid
and binding obligation of the Company enforceable against the Company in
accordance with its terms, except as enforceability may be limited by
applicable bankruptcy, insolvency, reorganization, moratorium or similar laws
affecting the enforcement of creditors' rights generally and by general
equitable principles (whether enforcement is sought by proceedings in equity or
at law).

              4.3  Litigation.  Except as disclosed in the Company's
Annual Report on Form 10-K for its fiscal year ended August 31, 1992 and the
Company's Quarterly Reports on Form 10-Q for its fiscal quarters ended March 31,
1993, June 30, 1993 and September 30, 1993 filed with the Securities and 
Exchange Commission and previously distributed to the Banks, there is
no litigation, at law or in equity, or any proceeding before any federal,
state, provincial or municipal board or other governmental or administrative 
agency, including without limitation, HMO Regulators and Insurance Regulators, 
pending or to the knowledge of the Company threatened which, after giving 
effect to any applicable insurance, may involve any material risk of a Material
Adverse Effect or which seeks to enjoin the consummation of any of the
transactions contemplated by this Agreement or any other Loan Document, and no 
judgment, decree, or order of any federal, state, provincial or municipal 
court, board or other governmental or administrative agency, including without 
limitation, HMO Regulators and Insurance Regulators, has been issued against 
the Company or any Subsidiary which has, or may involve, a material risk of a 
Material Adverse Effect.  The Company does not believe that the final 
resolution of the matters disclosed in its Annual Report on Form 10-K for its 
fiscal year ended August 31, 1992 and the Company's Quarterly Reports on 
Form 10-Q for its fiscal quarters ended March 31, 1993, June 30, 1993 and 
September 30, 1993 filed with the Securities and Exchange Commission and 
previously distributed to the Banks, will have a Material Adverse Effect.

              4.4  Disclosure.  Neither this Agreement nor any agreement, 
document, certificate or statement furnished to the Banks by the Company in 
connection herewith (including, without limitation, the information
relating to the Company and its Subsidiaries included in the Confidential
Information Memorandum dated December 1993 delivered in connection with the
syndication of the credit facilities hereunder) contains any untrue statement
of material fact or, taken as a whole together with all other information
furnished to Banks by the Company, omits to state a material fact necessary in
order to make the statements contained herein or therein not misleading.  All
pro forma financial statements made available to Banks have been prepared in
good
<PAGE>   45
                                                                              41

faith based upon reasonable assumptions.  There is no fact known to the Company
which materially adversely affects or in the future may (so far as the Company
can now foresee) materially adversely affect the business, operations, affairs
or condition of the Company and its Subsidiaries on a consolidated basis,
except to the extent that they may be affected by future general economic
conditions.

              4.5  Defaults.  Neither the Company nor any of its Subsidiaries is
in default under or with respect to any Requirement of Law or Contractual
Obligation in any respect which has had, or may have, a Material Adverse
Effect.  No Default or Event of Default has occurred and is continuing.

              4.6  Financial Condition.  The Company has furnished to the
Agent and each Bank copies of the following:

              (a)  The Annual Report of the Company on Form 10-K for the
         fiscal year ended August 31, 1992;

              (b)  the Quarterly Reports of the Company on Form 10-Q for each
         of the fiscal quarters ended November 30, 1992, March 31, 1993, June
         30, 1993 and September 30, 1993; and

              (c)  the Proxy Statement of the Company dated January 22, 1993.

The financial statements included therein, including the related schedules and
notes thereto, have been prepared in accordance with GAAP applied consistently
throughout the periods involved (except as disclosed therein).  As of the date
of such financial statements, neither the Company nor any of its Subsidiaries
had any known contingent liabilities of any significant amount which in
accordance with GAAP are required to be referred to in said financial
statements or in the notes thereto which could reasonably be expected to have a
Material Adverse Effect.  During the period from August 31, 1992 to and
including the date hereof, there has been no sale, transfer or other
disposition by the Company or any of its consolidated Subsidiaries of any asset
reflected on the balance sheet referred to above that would have been a
material part of its business or property (excluding the spin-off of the
Company's hospital business as described in the Proxy Statement referred to in
subsection 4.6(c)) and no purchase or other acquisition of any business or
property (including any capital stock of any other Person) material in relation
to the consolidated financial condition of the Company and its consolidated
Subsidiaries at August 31, 1992.

              4.7  Changes in Condition.  Since August 31, 1992, there has been
no development or event nor any prospective development or event, which has
had, or may have, a Material Adverse Effect.
<PAGE>   46
                                                                              42

              4.8  Assets.  The Company and each Subsidiary have good and
marketable title to all material assets carried on their books and reflected in
the financial statements referred to in subsection 4.6 or furnished pursuant to
subsection 6.4, except for assets held on Financing Leases or purchased subject
to security devices providing for retention of title in the vendor, and except
for assets disposed of as permitted by this Agreement.

              4.9  Tax Returns.  The Company and each of its Subsidiaries have
filed all tax returns which are required to be filed and have paid, or made
adequate provision for the payment of, all taxes which have or may become due
pursuant to said returns or to assessments received.  All federal tax returns
of the Company and its Subsidiaries through their fiscal years ended in 1987
have been audited by the Internal Revenue Service or are not subject to such
audit by virtue of the expiration of the applicable period of limitations, and
the results of such audits are fully reflected in the balance sheets referred
to in subsection 4.6.  The Company knows of no material additional assessments
since said date for which adequate reserves appearing in the said balance sheet
have not been established.

              4.10  Contracts, etc.  Attached hereto as Schedule III is a
statement of outstanding Indebtedness of the Company and its Subsidiaries for
borrowed money in excess of $1,000,000 as of the date set forth therein, and a
complete and correct list of all agreements, contracts, indentures,
instruments, documents and amendments thereto to which the Company or any
Subsidiary is a party or by which it is bound pursuant to which any such
Indebtedness of the Company and its Subsidiaries is outstanding on the date
hereof.  Said Schedule III also includes a complete and correct list of all
such Indebtedness of the Company and its Subsidiaries outstanding on the date
indicated in respect of Guarantee Obligations in excess of $1,000,000 and
letters of credit in excess of $1,000,000, and there have been no increases in
such Indebtedness since said date other than as permitted by this Agreement.

              4.11  Subsidiaries.  As of the date hereof, the Company has only
the Subsidiaries set forth in Schedule IV, all of the outstanding capital stock
of each of which is duly authorized, validly issued, fully paid and
nonassessable and owned as set forth in said Schedule IV.  Schedule IV
indicates all Subsidiaries of the Company which are not Wholly-Owned
Subsidiaries and the percentage ownership of the Company and its Subsidiaries
in each such Subsidiary.  The capital stock and securities owned by the Company
and its Subsidiaries in each of the Company's Subsidiaries are owned free and
clear of any mortgage, pledge, lien, encumbrance, charge or restriction on the
transfer thereof other than restrictions on transfer imposed by applicable
securities laws and restrictions, liens and encumbrances outstanding on the
date hereof and listed in said Schedule IV.
<PAGE>   47
                                                                              43

              4.12  Burdensome Obligations.  Neither the Company nor any
Subsidiary is a party to or bound by any agreement, deed, lease or other
instrument, or subject to any charter, by-law or other corporate restriction
which, in the opinion of the management thereof, is so unusual or burdensome as
to in the foreseeable future have a Material Adverse Effect.  The Company does
not presently anticipate that future expenditures of the Company and its
Subsidiaries needed to meet the provisions of any federal or state statutes,
orders, rules or regulations will be so burdensome as to have a Material
Adverse Effect.

              4.13  Pension Plans.  Each Plan maintained by the Company, any
Subsidiary or any Control Group Person or to which any of them makes or will
make contributions is in material compliance with the applicable provisions of
ERISA and the Code. Neither the Company nor any Subsidiary nor any Control
Group Person maintains, contributes to or participates in any Plan that is a
"defined benefit plan" as defined in ERISA.  Neither the Company, any
Subsidiary, nor any Control Group Person has since August 31, 1987 maintained,
contributed to or participated in any Multiemployer Plan, with respect to which
a complete withdrawal would result in any withdrawal liability.  The Company
and its Subsidiaries have met all of the funding standards applicable to all
Plans that are not Multiemployer Plans, and there exists no event or condition
which would permit the institution of proceedings to terminate any Plan that is
not a Multiemployer Plan.  The current value of the benefits guaranteed under
Title IV of ERISA of each Plan that is not a Multiemployer Plan does not exceed
the current value of such Plan's assets allocable to such benefits.

              4.14  Environmental and Public and Employee Health and Safety
Matters.  The Company and each Subsidiary has complied with all applicable
Federal, state, and other laws, rules and regulations relating to environmental
pollution or to environmental regulation or control or to public or employee
health or safety, except to the extent that the failure to so comply would not
be reasonably likely to result in a Material Adverse Effect.  The Company's and
the Subsidiaries' facilities do not contain, and have not previously contained,
any hazardous wastes, hazardous substances, hazardous materials, toxic
substances or toxic pollutants regulated under the Resource Conservation and
Recovery Act, the Comprehensive Environmental Response Compensation and
Liability Act, the Hazardous Materials Transportation Act, the Toxic Substance
Control Act, the Clean Air Act, the Clean Water Act or any other applicable law
relating to environmental pollution or public or employee health and safety, in
violation of any such law, or any rules or regulations promulgated pursuant
thereto, except for violations that would not be reasonably likely to result in
a Material Adverse Effect. The Company is aware of no events, conditions or
circumstances involving environmental pollution or contamination or public or
employee health or safety, in each case applicable to it or its
<PAGE>   48
                                                                              44

Subsidiaries, that would be reasonably likely to result in a Material Adverse
Effect.

              4.15  Federal Regulations.  No part of the proceeds of any Loans
will be used for "purchasing" or "carrying" any "margin stock" within the
respective meanings of each of the quoted terms under Regulation U as now and
from time to time hereafter in effect or for any purpose which violates the
provisions of the Regulations of the Board of Governors of the Federal Reserve
System.  If requested by any Bank or the Agent, the Company will furnish to the
Agent and each Bank a statement to the foregoing effect in conformity with the
requirements of FR Form U-1 referred to in said Regulation U.

              4.16  Investment Company Act; Other Regulations.  The Company is
not an "investment company", or a company "controlled" by an "investment
company", within the meaning of the Investment Company Act of 1940, as amended.
The Company is not subject to regulation under any Federal or State statute or
regulation which limits its ability to incur Indebtedness.

              4.17  Solvency.  Each of the Company, and the Company and its
Subsidiaries taken as a whole, is Solvent.

              4.18  Casualties.  Neither the businesses nor the properties of
the Company or any of its Subsidiaries are affected by any fire, explosion,
accident, strike, lockout or other material labor dispute, drought, storm,
hail, earthquake, embargo, act of God or of the public enemy or other casualty
(whether or not covered by insurance) that could reasonably be expected to have
a Material Adverse Effect.

              4.19  Business Activity.  Neither the Company nor any of its
Subsidiaries is engaged in any line of business that is not related to the
healthcare industry other than the sale of life insurance in connection with
the sale of medical insurance or other healthcare services or any business or
activity which is immaterial to the Company and its Subsidiaries on a
consolidated basis.

              4.20  Purpose of Loans.  The proceeds of the Loans shall be used
by the Company for general corporate purposes.

             SECTION 5.   CONDITIONS

             5.1  Conditions to the Closing Date.  The obligations of each Bank
to make the Loans contemplated by subsections 2.1 and 2.2 and of the Issuing
Bank to issue Letters of Credit contemplated by subsection 3.1 shall be subject
to the compliance by the Company with its agreements herein contained and to
the satisfaction of the following conditions on or before the Closing Date:
<PAGE>   49
                                                                              45

             (a)   Loan Documents.  The Agent shall have received (i) this
         Agreement, executed and delivered by a duly authorized officer of the
         Company, with a counterpart for each Bank and (ii) for the account of
         each Bank, a Revolving Credit Note and a Grid CAF Loan Note conforming
         to the requirements hereof and executed by a duly authorized officer
         of the Company.

             (b)  Legal Opinions.  On the Closing Date and on any Borrowing
         Date as the Agent shall request, each Bank shall have received from
         any general, associate, or assistant general counsel to the Company,
         such opinions as the Agent shall have reasonably requested with
         respect to the transactions contemplated by this Agreement.

             (c)  Closing Certificate.  The Agent shall have received, with
         a counterpart for each Bank, a Closing Certificate, substantially in
         the form of Exhibit H and dated the Closing Date, executed by a
         Responsible Officer of the Company.

             (d)  Legality, etc.  The consummation of the transactions
         contemplated hereby shall not contravene, violate or conflict with,
         nor involve the Agent, the Issuing Bank or any Bank in any violation
         of, any Requirement of Law including, without limitation, HMO
         Regulations and Insurance Regulations, and all necessary consents,
         approvals and authorizations of any Governmental Authority or any
         Person to or of such consummation shall have been obtained and shall
         be in full force and effect.

             (e)  Fees.  The Agent shall have received the fees to be
         received on the Closing Date referred to in subsection 2.3.

             (f)  Corporate Proceedings.  The Agent shall have received,
         with a counterpart for each Bank, a copy of the resolutions, in form
         and substance satisfactory to the Agent, of the Board of Directors of
         the Company authorizing (i) the execution, delivery and performance of
         this Agreement, the Notes and the other Loan Documents, and (ii) the
         borrowings contemplated hereunder, certified by the Secretary or an
         Assistant Secretary of the Company as of the Closing Date, which
         certificate shall state that the resolutions thereby certified have
         not been amended, modified, revoked or rescinded and shall be in form
         and substance satisfactory to the Agent.

             (g)  Corporate Documents.  The Agent shall have received, with
         a counterpart for each Bank, true and complete copies of the
         certificate of incorporation and by-laws of the Company, certified as
         of the Closing Date as complete and correct copies thereof by the
         Secretary or an Assistant Secretary of the Company.
<PAGE>   50
                                                                              46

             (h)  No Material Litigation.  Except as previously disclosed to 
         the Agent and the Banks pursuant to subsection 4.3, no litigation, 
         inquiry, investigation, injunction or restraining order (including 
         any proposed statute, rule or regulation) shall be pending, entered 
         or threatened which, in the reasonable judgment of the Majority 
         Banks, could reasonably be expected to have a Material Adverse Effect.

             (i)  Incumbency Certificate.  The Agent shall have received,
         with a counterpart for each Bank, a certificate of the Secretary or
         an Assistant Secretary of the Company, dated the Closing Date, as to
         the incumbency and signature of the officers of the Company executing
         each Loan Document and any certificate or other document to be
         delivered by it pursuant hereto and thereto, together with evidence of
         the incumbency of such Secretary or Assistant Secretary.

             (j)  Good Standing Certificates.  The Agent shall have     
         received, with a copy for each Bank, copies of certificates dated as
         of a recent date from the Secretary of State or other appropriate
         authority of such jurisdiction, evidencing the good standing of the
         Company in its jurisdiction of incorporation and in Kentucky.

             (k)  No Change.  There shall not have occurred any change, or 
         development of event involving a prospective change, and a Bank shall
         not have become aware of any previously undisclosed information,
         which in either case in the reasonable judgment of the Majority Banks
         could reasonably be expected to have a Material Adverse Effect.

             5.2  Conditions to Each Loan.  The agreement of each Bank to make
any extension of credit requested to be made by it on any date is subject to
the satisfaction of the following conditions precedent:

             (a)  Representations and Warranties.  Each of the
         representations and warranties made by the Company and its
         Subsidiaries in or pursuant to the Loan Documents shall be true and
         correct in all material respects on and as of such date as if made on
         and as of such date.

             (b)  No Default.  No Default or Event of Default shall have 
         occurred and be continuing on such date or after giving effect to the
         Loans requested to be made on such date.

             (c)  Additional Matters.  All corporate and other proceedings, 
         and all documents, instruments and other legal matters in connection
         with the transactions contemplated by this Agreement and the other
         Loan Documents shall be satisfactory in form and substance to the
         Agent, and the Agent shall have received such other documents,
         instruments, legal opinions or other items of information reasonably
         requested by it, including, without limitation, copies of
<PAGE>   51
                                                                              47

         any debt instruments, security agreements or other material
         contracts to which the Company may be a party in respect of any aspect
         or consequence of the transactions contemplated hereby or thereby as
         it shall reasonably request.

Each borrowing by the Company hereunder shall constitute a representation and
warranty by the Company as of the date of such extension of credit that the
conditions contained in this subsection 5.2 have been satisfied.

             SECTION 6.   AFFIRMATIVE COVENANTS

             The Company hereby agrees that, from and after the Closing Date
and so long as the Commitments remain in effect, any Note or Letter of Credit
remains outstanding and unpaid or any other amount is owing to any Bank or the
Agent hereunder, the Company shall and (except in the case of delivery of
financial information, reports and notices) shall cause each of its
Subsidiaries to:

             6.1  Taxes, Indebtedness, etc.  Duly pay, discharge or otherwise
satisfy, or cause to be paid, discharged or otherwise satisfied, before the
same shall become in arrears, all taxes, assessments, levies and other
governmental charges imposed upon such corporation and its properties, sales
and activities, or any part thereof, or upon the income or profits therefrom;
provided, however, that any such tax, assessment, charge or levy need not be
paid if the validity or amount thereof shall currently be contested in good
faith by appropriate proceedings and if the Company or the Subsidiary in
question shall have set aside on its books appropriate reserves in conformity
with GAAP with respect thereto.  Each of the Company and its Subsidiaries will
promptly pay when due, or in conformance with customary trade terms, all other
Indebtedness, liabilities and other obligations of whatever nature incident to
its operations; provided, however, that any such Indebtedness, liability or
obligation need not be paid if the validity or amount thereof shall currently
be contested in good faith and if the Company or the Subsidiary in question
shall have set aside on its books appropriate reserves in conformity with GAAP
with respect thereto.

             6.2  Maintenance of Properties; Maintenance of Existence.  Keep
its material properties in good repair, working order and condition and will
from time to time make all necessary and proper repairs, renewals,
replacements, additions and improvements thereto and will comply at all times
with the provisions of all material leases and other material agreements to 
which it is a party so as to prevent any loss or forfeiture thereof or 
thereunder unless compliance therewith is being contested in good faith by 
appropriate proceedings and if the Company or the Subsidiary in question shall 
have set aside on its books appropriate reserves in conformity with GAAP with 
respect thereto; and in the case of the Company or any Subsidiary of the
<PAGE>   52
                                                                              48

Company while such Person remains a Subsidiary, will do all things necessary to
preserve, renew and keep in full force and effect and in good standing its
corporate existence and all rights, privileges and franchises necessary or
desirable to continue such businesses.

             6.3  Insurance.  Maintain or cause to be maintained, with
financially sound and reputable insurers including any Subsidiary which is
engaged in the business of providing insurance protection, insurance
(including, without limitation, public liability insurance, business
interruption insurance, reinsurance for medical claims and professional
liability insurance against claims for malpractice) with respect to its
material properties and business and the properties and business of its
Subsidiaries in at least such amounts and against at least such risks as are
customarily carried under similar circumstances by other corporations engaged
in the same or a similar business; and furnish to each Bank, upon written
request, full information as to the insurance carried.  Such insurance may be
subject to co-insurance, deductibility or similar clauses which, in effect,
result in self-insurance of certain losses, and the Company may self-insure
against such loss or damage, provided that adequate insurance reserves are
maintained in connection with such self-insurance.

             6.4  Financial Statements.  The Company will and will cause each
of its Subsidiaries to maintain a standard modern system of accounting in which
full, true and correct entries will be made of all dealings or transactions in
relation to its business and affairs in accordance with GAAP consistently
applied, and will furnish the following to each Bank (in duplicate if so
requested):

             (a)  Annual Statements.  As soon as available, and in any event
         within 120 days after the end of each fiscal year, the consolidated
         balance sheet as at the end of each fiscal year and consolidated
         statements of profit and loss and of retained earnings for such fiscal
         year of the Company and its Subsidiaries, together with comparative
         consolidated figures for the next preceding fiscal year, accompanied
         by reports or certificates of Coopers & Lybrand, or, if they cease to
         be the auditors of the Company, of other independent public
         accountants of national standing and reputation, to the effect that
         such balance sheet and statements were prepared in accordance with
         GAAP consistently applied and fairly present the financial position of
         the Company and its Subsidiaries as at the end of such fiscal year and
         the results of their operations and changes in financial position for
         the year then ended and the statement of such accountants and of the
         treasurer of the Company that such said accountants and treasurer have
         caused the provisions of this Agreement to be reviewed and that
         nothing has come to their attention to lead them to believe that any
         Default exists hereunder or, if such is not
<PAGE>   53
                                                                              49

         the case, specifying such Default or possible Default and the
         nature thereof. In addition, such financial statements shall be
         accompanied by a certificate of the treasurer of the Company
         containing computations showing compliance with subsections 7.1, 7.2,
         7.3 and 7.5.

             (b)  Quarterly Statements.  As soon as available, and in any
         event within 60 days after the close of each of the first three fiscal
         quarters of the Company and its Subsidiaries in each year,
         consolidated balance sheets as at the end of such fiscal quarter and
         consolidated profit and loss and retained earnings statements for the
         portion of the fiscal year then ended, of the Company and its
         Subsidiaries, together with computations showing compliance with
         subsections 7.1, 7.2, 7.3 and 7.5, accompanied by a certificate of the
         treasurer of the Company that such statements and computations have
         been properly prepared in accordance with GAAP, consistently applied,
         and fairly present the financial position of the Company and its
         Subsidiaries as at the end of such fiscal quarter and the results of
         their operations and changes in financial position for such quarter
         and for the portion of the fiscal year then ended, subject to normal
         audit and year-end adjustments, and to the further effect that he has
         caused the provisions of this Agreement and all other agreements to
         which the Company or any of its Subsidiaries is a party and which
         relate to Indebtedness to be reviewed, and has no knowledge that any
         Default has occurred under this Agreement or under any such other
         agreement, or, if said treasurer has such knowledge, specifying such
         Default and the nature thereof.

             (c)  ERISA Reports.  The Company will furnish the Agent with
         copies of any request for waiver of the funding standards or extension
         of the amortization periods required by Sections 303 and 304 of ERISA
         or Section 412 of the Code promptly after any such request is
         submitted by the Company to the Department of Labor or the Internal
         Revenue Service, as the case may be.  Promptly after a Reportable
         Event occurs, or the Company or any of its Subsidiaries receives
         notice that the PBGC or any Control Group Person has instituted or
         intends to institute proceedings to terminate any pension or other
         Plan, or prior to the Plan administrator's terminating such Plan
         pursuant to Section 4041 of ERISA, the Company will notify the Agent
         and will furnish to the Agent a copy of any notice of such Reportable
         Event which is required to be filed with the PBGC, or any notice
         delivered by the PBGC evidencing its institution of such proceedings
         or its intent to institute such proceedings, or any notice to the PBGC
         that a Plan is to be terminated, as the case may be.  The Company will
         promptly notify each Bank upon learning of the occurrence of any of
         the following events with respect to any Plan which is a Multiemployer
         Plan: a partial or complete withdrawal from
<PAGE>   54
                                                                              50

         any Plan which may result in the incurrence by the Company or
         any of is Subsidiaries of withdrawal liability in excess of $1,000,000
         under Subtitle E of Title IV of ERISA, or of the termination,
         insolvency or reorganization status of any Plan under such Subtitle E
         which may result in liability to the Company or any of its
         Subsidiaries in excess of $1,000,000.  In the event of such a 
         withdrawal, upon the request of the Agent or any Bank, the
         Company will promptly provide information with respect to the scope
         and extent of such liability, to the best of the Company's knowledge.

             6.5  Certificates; Other Information.  Furnish to each
Bank:

             (a)  within five days after the same are sent, copies of all 
         financial statements and reports which the Company sends to its
         stockholders, and within five days after the same are filed, copies
         of all financial statements and reports which the Company may make
         to, or file with, the Securities and Exchange Commission;

             (b)  not later than thirty days prior to the end of each fiscal 
         year of the Company, the Company shall deliver to the Agent and
         the Banks a schedule of the Company's insurance coverage and such
         supplemental schedules with respect thereto as the Agent and the Banks
         may from time to time reasonably request; and

             (c)  promptly, such additional financial and other information
         as any Bank may from time to time reasonably request.

             6.6  Compliance with ERISA.  Each of the Company and its
Subsidiaries will meet, and will cause all Control Group Persons to meet, all
minimum funding requirements applicable to any Plan imposed by ERISA or the
Code (without giving effect to any waivers of such requirements or extensions
of the related amortization periods which may be granted), and will at all
times comply, and will cause all Control Group Persons to comply, in all
material respects with the provisions of ERISA and the Code which are
applicable to the Plans.  At no time shall the aggregate actual and contingent
liabilities of the Company under Sections 4062, 4063, 4064 and other provisions
of ERISA (calculated as if the 30% of collective net worth amount referred to
in Section 4062(b)(1)(A)(i)(II) of ERISA exceeded the actual total amount of
unfunded guaranteed benefits referred to in Section 4062 (B)(1)(A)(i)(I) of
ERISA) with respect to all Plans (and all other pension plans to which the
Company, any Subsidiary, or any Control Group Person made contributions prior
to such time) exceed $5,000,000.  Neither the Company nor its Subsidiaries will
permit any event or condition to exist which could permit any Plan which is not
a Multiemployer Plan to be terminated under circumstances which would cause the
lien
<PAGE>   55
                                                                              51

provided for in Section 4068 of ERISA to attach to the assets of the Company or
any of its Subsidiaries.

             6.7  Compliance with Laws.  Comply with all Contractual
Obligations and Requirements of Law (including, without limitation, the HMO
Regulations, Insurance Regulations and laws relating to the protection of the
environment), except where compliance therewith shall be contested in good
faith by appropriate proceedings, the Company or the Subsidiary in question
shall have set aside on its books appropriate reserves in conformity with GAAP
with respect thereto, and the failure to comply therewith could not, in the
aggregate, have a Material Adverse Effect.

             6.8  Inspection of Property; Books and Records; Discussions.  Keep
proper books of records and account in which full, true and correct entries in
conformity with GAAP, all Requirements of Law, including but not limited to,
HMO Regulations and Insurance Regulations, and the terms hereof shall be made
of all dealings and transactions in relation to its business and activities;
and permit representatives of any Bank to visit and inspect any of its 
properties and examine and make abstracts from any of its books and
records at any reasonable time and as often as may reasonably be desired and to
discuss the business, operations, properties and financial and other condition
of the Company and its Subsidiaries with officers and employees of the Company
and its Subsidiaries and with its independent certified public accountants.

             6.9  Notices.  Promptly give notice to the Agent and each Bank of:

             (a)  the occurrence of any Default or Event of Default;

             (b)  any (i) default or event of default under any Contractual
         Obligation of the Company or any of its Subsidiaries or (ii)
         litigation, investigation or proceeding which may exist at any time
         between the Company or any of its Subsidiaries and any Governmental
         Authority (including, without limitation, HMO Regulators and Insurance
         Regulators), which in either case, if not cured or if adversely
         determined, as the case may be, could reasonably be expected to have a
         Material Adverse Effect;

             (c)  any litigation or proceeding affecting the Company or any
         of its Subsidiaries in which the amount involved is $5,000,000 or more
         and not covered by insurance or in which material injunctive or
         similar relief is sought;

             (d)  a material development or material change in any ongoing
         litigation or proceeding affecting the Company or any of its
         Subsidiaries in which the amount involved is $5,000,000 or more and
         not covered by insurance or in which material injunctive or similar
         relief is sought;
<PAGE>   56
                                                                              52

             (e)  the following events, as soon as possible and in any event
         within 30 days after the Company knows or has reason to know thereof:
         (i) the occurrence or expected occurrence of any Reportable Event with
         respect to any Plan, or any withdrawal from, or the termination,
         Reorganization or Insolvency of any Multiemployer Plan or (ii) the
         institution of proceedings or the taking of any other action by the
         PBGC or the Company or any Commonly Controlled Entity or any
         Multiemployer Plan with respect to the withdrawal from, or the
         terminating, Reorganization or Insolvency of, any Plan;

             (f)  a development or event which could have a Material Adverse
         Effect;

             (g)  the material non-compliance or potential material
         non-compliance with any Contractual Obligation or Requirement of Law,
         including, without limitation, HMO Regulations and Insurance
         Regulations that is not currently being contested in good faith by
         appropriate proceedings;

             (h)  the revocation of any material license, permit,
         authorization, certificate, qualification or accreditation of the
         Company or any Subsidiary by any Governmental Authority, including,
         without limitation, the HMO Regulators and Insurance Regulators; and

             (i)  any significant change in or material additional
         restriction placed on the ability of a Significant Subsidiary to
         continue business as usual, including, without limitation, its ability
         to pay dividends to the Company, by any Governmental Authority,
         including, without limitation, the HMO Regulators and Insurance
         Regulators.

Each notice pursuant to this subsection shall be accompanied by a statement of
a Responsible Officer setting forth details of the occurrence referred to
therein and stating what action the Company proposes to take with respect
thereto.

             6.10  Maintenance of Accreditation, Etc.  Preserve and maintain, 
and cause each of its Subsidiaries to preserve and maintain, all
licenses, permits, authorizations, certifications and qualifications
(including, without limitation, those qualifications with respect to solvency
and capitalization) required under the HMO Regulations or the Insurance
Regulations in connection with the ownership or operation of HMO's or insurance
companies except were the failure to do so would not result in a Material
Adverse Effect.

             6.11  Further Assurances.  Execute any and all further documents,
and take all further action which the Majority Banks or the Agent may
reasonably request in order to effectuate the transactions contemplated by the
Loan Documents.
<PAGE>   57
                                                                              53

              SECTION 7.   NEGATIVE COVENANTS

              The Company hereby agrees that, from and after the Closing Date
and so long as the Commitments remain in effect, any Note or Letter of Credit
remains outstanding and unpaid or any other amount is owing to any Bank or the
Agent hereunder, the Company shall not, and shall not permit any of its
Subsidiaries to, directly or indirectly:

              7.1   Financial Condition Covenants.

              (a)  Maintenance of Net Worth.  Permit Consolidated Net Worth
         at any time to be less than 80% of its Consolidated Net Worth of the
         Company and its consolidated subsidiaries as at September 30, 1993
         plus 75% of the Company's Consolidated Net Income determined on an
         after-extraordinary items basis for each full fiscal quarter after the
         Closing Date (without any deduction for any such fiscal quarter in
         which Consolidated Net Income is a negative number).

              (b)  Fixed Charge Coverage.  Permit, on the last day of any
         fiscal quarter of the Company, the ratio of (i) Consolidated Earnings
         before Interest and Taxes for the four consecutive fiscal quarters of
         the Company ending on such date to (ii) Consolidated Interest Expense
         during such period, to be less than 3.0 to 1.0.

              (c)  Maximum Leverage Ratio.  Permit the Leverage Ratio on the
         last day of any full fiscal quarter of the Company to be more than 3.0
         to 1.0.

              7.2  Limitation on Subsidiary Indebtedness.  The Company shall
not permit any of the Subsidiaries of the Company to create, incur, assume or
suffer to exist any Indebtedness, except:

              (a)  Indebtedness of any Subsidiary to the Company or any other
         Subsidiary;

              (b)  Indebtedness of a corporation which becomes a Subsidiary
         after the date hereof, provided that (i) such indebtedness existed at
         the time such corporation became a Subsidiary and was not created in
         anticipation thereof and (ii) immediately before and after giving
         effect to the acquisition of such corporation by the Company no
         Default or Event of Default shall have occurred and be continuing; and

              (c)  additional Indebtedness of Subsidiaries of the Company not
         exceeding $75,000,000 in aggregate principal amount at any one time
         outstanding.

              7.3  Limitation on Liens.  Create, incur, assume or suffer to
exist any Lien upon any of its property, assets or revenues, whether now owned
or hereafter acquired, except for:
<PAGE>   58
                                                                              54

              (a)  Liens, if any, securing the obligations of the Company
         under this Agreement and the Notes;

              (b)  Liens for taxes not yet due or which are being contested
         in good faith by appropriate proceedings, provided that adequate 
         reserves with respect thereto are maintained on the books of
         the Company or its Subsidiaries, as the case may be, in conformity
         with GAAP;

              (c)  carriers',  warehousemen's,  mechanics', materialmen's,
         repairmen's or other like Liens arising in the ordinary course of
         business which are not overdue for a period of more than 60 days or
         which are being contested in good faith by appropriate proceedings;

              (d)  pledges or deposits in connection with workers'
         compensation, unemployment insurance and other social security
         legislation;

              (e)  deposits to secure the performance of bids, trade
         contracts (other than for borrowed money), leases, statutory
         obligations, surety and appeal bonds, performance bonds and other
         obligations of a like nature incurred in the ordinary course of
         business;

              (f)  easements, rights-of-way, restrictions and other similar
         encumbrances incurred in the ordinary course of business which, in the
         aggregate, are not substantial in amount and which do not in any case
         materially detract from the value of the property subject thereto or
         materially interfere with the ordinary conduct of the business of the
         Company or such Subsidiary;

              (g)  Liens in existence on the Closing Date listed on Schedule
         V, securing Indebtedness in existence on the Closing Date, provided
         that no such Lien is spread to cover any additional property after the
         Closing Date and that the amount of Indebtedness secured thereby is
         not increased;

              (h)  Liens securing Indebtedness of the Company and its
         Subsidiaries not prohibited hereunder incurred to finance the
         acquisition of fixed or capital assets, provided that (i) such Liens
         shall be created substantially simultaneously with the acquisition of
         such fixed or capital assets,  (ii) such Liens do not at any time
         encumber any property other than the property financed by such
         Indebtedness and (iii) the principal amount of Indebtedness secured by
         any such Lien shall at no time exceed 80% of the original purchase
         price of such property;

              (i)  Liens on the property or assets of a corporation which
         becomes a Subsidiary after the date hereof securing Indebtedness
         permitted by subsection 7.2(b), provided that (i) such Liens existed
         at the time such corporation became a
<PAGE>   59
                                                                              55

         Subsidiary and were not created in anticipation thereof, (ii)
         any such Lien is not spread to cover any property or assets of such
         corporation after the time such corporation becomes a Subsidiary and
         (iii) the amount of Indebtedness secured thereby is not increased;

              (j)  Liens on the Headquarters; and

              (k)  Liens not otherwise permitted under this subsection 7.3
         securing obligations in an aggregate amount not exceeding at any time
         10% of Consolidated Net Tangible Assets as at the end of the
         immediately preceding fiscal quarter of the Company.

              7.4  Limitations on Fundamental Changes.  Enter into any merger,
consolidation or amalgamation, or liquidate, wind up or dissolve itself (or
suffer any liquidation or dissolution), or make any material change in its
method of conducting business, or purchase or otherwise acquire all or
substantially all of Capital Stock, or the property, business or assets, of any
other Person (other than any Subsidiary) or any business division thereof 
except:

              (a)  any Subsidiary of the Company may be merged or
         consolidated with or into the Company (provided that the Company shall
         be the continuing or surviving corporation) and any Subsidiary of the
         Company (except a Subsidiary the Indebtedness with respect to which is
         referred to in subsection 7.2 (b)) may be merged or consolidated with
         or into any one or more wholly owned Subsidiaries of the Company
         (provided that the wholly owned Subsidiary or Subsidiaries shall be
         the continuing or surviving corporation);

              (b)  the Company may merge into another corporation owned by
         the Company for the purpose of causing the Company to be incorporated
         in a different jurisdiction; and

              (c)  the Company may merge with another corporation, provided
         that (i) the Company shall be the continuing or surviving corporation
         of such merger and (ii) immediately before and after giving effect to
         such merger no Default or Event of Default shall have occurred and be
         continuing.

              7.5  Limitation on Sale of Assets.  Convey, sell, lease, assign,
transfer or otherwise dispose of any of its property, business or assets
(including, without limitation, receivables and leasehold interests), whether
now owned or hereafter acquired, except:

              (a)  obsolete or worn out property disposed of in the ordinary
         course of business;
<PAGE>   60
                                                                              56

              (b)  the sale or discount without recourse of accounts
         receivable arising in the ordinary course of business in connection
         with the compromise or collection thereof;

              (c)  the sale or other disposition of the Headquarters; and

              (d)  the sale or other disposition of securities held for
         investment purposes in the ordinary course of business;

              (e)  any wholly owned Subsidiary may sell, lease, transfer or
         otherwise dispose of any or all of its assets (upon voluntary
         liquidation or otherwise) to the Company or any other wholly owned
         Subsidiary of the Company (except to a Subsidiary referred to in
         subsection 7.2(b)); and

              (f)  the sale or other disposition of any other property,
         provided that the aggregate book value of all assets so sold or
         disposed of in any fiscal year of the Company shall not exceed in the
         aggregate 12% of the Consolidated Assets of the Company and its
         Subsidiaries as at the end of the immediately preceding fiscal year of
         the Company.

             7.6  Limitation on Distributions.  The Company shall not make any
Distribution except that, so long as no Event of Default exists or would exist
after giving effect thereto, the Company may make a Distribution.

             7.7  Transactions with Affiliates.  Enter into any transaction,
including, without limitation, any purchase, sale, lease or exchange of
property or the rendering of any service, with any Affiliate (other than the
Company and its Subsidiaries) unless such transaction is otherwise permitted
under this Agreement, is in the ordinary course of the Company's or such
Subsidiary's business and is upon fair and reasonable terms no less favorable
to the Company or such Subsidiary, as the case may be, than it would obtain in
an arm's length transaction.

             7.8  Sale and Leaseback.  Enter into any arrangement with any
Person providing for the leasing by the Company or any Subsidiary of real or
personal property which has been or is to be sold or transferred by the Company
or such Subsidiary to such Person or to any other Person to whom funds have
been or are to be advanced by such Person on the security of such property or
rental obligations of the Company or such Subsidiary, unless such arrangement
is upon fair and reasonable terms no less favorable to the Company or such
Subsidiary than would be obtained in a comparable arm's length transaction
between an informed and willing seller or lessor under no compulsion to sell or
lease and an informed and willing buyer or lessee under no compulsion to buy or
lease.
<PAGE>   61
                                                                              57

             7.9  Limitation on Negative Pledge Clauses.  Enter into any
agreement, other than any industrial revenue bonds, purchase money mortgages or
Financing Leases permitted by this Agreement (in which cases, any prohibition
or limitation may only be with respect to the real or personal property which
is the subject thereof and other property reasonably related thereto), with any
Person other than the Banks pursuant hereto which prohibits or limits the
ability of the Company or any of its Subsidiaries to create, incur, assume or
suffer to exist any Lien upon any of its property, assets or revenues, whether
now owned or hereafter acquired.

              SECTION 8.  DEFAULTS

              8.1  Events of Default.  Upon the occurrence of any of
the following events:

              (a)  any default shall be made by the Company in any payment in
         respect of:  (i) interest on any of the Notes, any Reimbursement
         Obligation or any facility fee payable hereunder as the same shall
         become due and such default shall continue for a period of five days;
         or (ii) any Reimbursement Obligation or principal of the Indebtedness
         evidenced by the Notes as the same shall become due, whether at
         maturity, by prepayment, by acceleration or otherwise; or

              (b)  any default shall be made by either the Company or any
         Subsidiary of the Company in the performance or observance of any of
         the provisions of subsections 7.1, 7.2, 7.3, 7.4, 7.5, 7.6, 7.8 and
         7.9; or

              (c)  any default shall be made in the due performance or
         observance of any other covenant, agreement or provision to be
         performed or observed by the Company under this Agreement, and such
         default shall not be rectified or cured to the satisfaction of the
         Majority Banks within a period expiring 30 days after written notice
         thereof by the Agent to the Company; or

              (d)  any representation or warranty made or deemed made by the
         Company herein or in any other Loan Document or which is contained in
         any certificate, document or financial or other statement furnished at
         any time under or in connection with this Agreement shall have been
         untrue in any material respect on or as of the date made and the facts
         or circumstances to which such representation or warranty relates
         shall not have been subsequently corrected to make such representation
         or warranty no longer incorrect; or

              (e)  any default shall be made in the payment of any item of
         Indebtedness of the Company or any Subsidiary or under the terms of
         any agreement relating to such Indebtedness and such default shall
         continue without having been duly cured, waived or consented to,
         beyond the period
<PAGE>   62
                                                                              58

         of grace, if any, therein specified; provided, however, that
         such default shall not constitute an Event of Default unless (i) the
         outstanding principal amount of such item of Indebtedness exceeds
         $5,000,000, or (ii) the aggregate outstanding principal amount of such
         item of Indebtedness and all other items of Indebtedness of the
         Company and its Subsidiaries as to which such defaults exist and have
         continued without being duly cured, waived or consented to beyond the
         respective periods of grace, if any, therein specified exceeds
         $15,000,000, or (iii) such default shall have continued without being
         rectified or cured to the satisfaction of the Majority Banks for a
         period of 30 days after written notice thereof by the Agent to the
         Company; or

              (f)  either the Company or any Subsidiary shall be involved in
         financial difficulties as evidenced:

                   (i)  by its commencement of a voluntary case under Title 
              11 of the United States Code as from time to time in effect, or
              by its authorizing, by appropriate proceedings of its board of
              directors or other governing body, the commencement of such a
              voluntary case;

                  (ii)  by the filing against it of a petition commencing an
              involuntary case under said Title 11 which shall not have been
              dismissed within 60 days after the date on which said petition is
              filed or by its filing an answer or other pleading within said
              60-day period admitting or failing to deny the material
              allegations of such a petition or seeking, consenting or
              acquiescing in the relief therein provided;

                 (iii)  by the entry of an order for relief in any involuntary 
              case commenced under said Title 11;

                  (iv)  by its seeking relief as a debtor under any applicable
              law, other than said Title 11, of any jurisdiction relating to
              the liquidation or reorganization of debtors or to the
              modification or alteration of the rights of creditors, or by its
              consenting to or acquiescing in such relief;

                   (v)  by the entry of an order by a court of competent
              jurisdiction (i) finding it to be bankrupt or insolvent,  (ii)
              ordering or approving its liquidation, reorganization or any
              modification or alteration of the rights of its creditors, or
              (iii) assuming custody of, or appointing a receiver or other
              custodian for, all or a substantial part of its property; or

                  (vi)  by its making an assignment for the benefit of, or
              entering into a composition with, its creditors, or appointing or
              consenting to the appointment of a
<PAGE>   63
                                                                              59

              receiver or other custodian for all or a substantial part of its
              property; or

              (g)   a Change in Control of the Company shall occur;

              (h)   (i)  any Person shall engage in any "prohibited
         transaction" (as defined in Section 406 of ERISA or Section 4975 of
         the Code) involving any Plan,  (ii) any "accumulated funding
         deficiency" (as defined in Section 302 of ERISA), whether or not
         waived, shall exist with respect to any Plan, (iii) a Reportable Event
         shall occur with respect to, or proceedings shall commence to have a
         trustee appointed, or a trustee shall be appointed, to administer or
         to terminate, any Single Employer Plan, which Reportable Event or
         commencement of proceedings or appointment of a trustee is, in the
         reasonable opinion of the Majority Banks, likely to result in the
         termination of such Plan for purposes of Title IV of ERISA,  (iv) any
         Single Employer Plan shall terminate for purposes of Title IV of
         ERISA, (v) the Company or any Commonly Controlled Entity shall, or in
         the reasonable opinion of the Majority Banks is likely to, incur any
         liability in connection with a withdrawal from, or the Insolvency or
         Reorganization of, a Multiemployer Plan or (vi) any other event or
         condition shall occur or exist, with respect to a Plan; and in each
         case in clauses (i) through (vi) above, such event or condition,
         together with all other such events or conditions, if any, could
         subject the Company or any of its Subsidiaries to any tax, penalty or
         other liabilities which in the aggregate could have a Material Adverse
         Effect; or

              (i)  one or more judgments or decrees shall be entered against
         the Company or any of its Subsidiaries and such judgments or decrees
         shall not have been vacated, discharged, stayed or bonded pending
         appeal within 45 days from the entry thereof that (i) involves in the
         aggregate a liability (not paid or fully covered by insurance) of
         $15,000,000 or more, or (ii) could reasonably be expected to have a
         Material Adverse Effect; or

              (j)   (i) any material non-compliance by the Company or any
         Significant Subsidiary with any term or provision of the HMO
         Regulations or Insurance Regulations pertaining to fiscal soundness,
         solvency or financial condition; or (ii) the assertion in writing by
         an HMO Regulator or Insurance Regulator that it intends to take
         administrative action against the Company or any Significant
         Subsidiary to revoke or modify any contract of insurance, license,
         permit, certification, authorization, accreditation or charter or to 
         enforce the fiscal soundness, solvency or financial provisions or 
         requirements of the HMO Regulations or Insurance Regulations against
         any of such entities which could reasonably be expected to have a
         Material Adverse Effect; or
<PAGE>   64
                                                                              60

              (k)   on or after the Closing Date, (i) for any reason any
         Loan Document ceases to be or is not in full force and effect or (ii)
         the Company shall assert that any Loan Document has ceased to be or is
         not in full force and effect;

then, and in any such event, (A) if such event is an Event of Default
specified in paragraph (f) above with respect to the Company, automatically the
Commitments shall immediately terminate and the Loans hereunder (with accrued
interest thereon) and all other amounts owing under this Agreement and the
Notes (including, without limitation, all amounts of L/C Obligations, whether
or not the beneficiaries of the then outstanding Letters of Credit have
presented the documents required thereunder) shall immediately become due and
payable, and (B) if such event is any other Event of Default, either or both of
the following actions may be taken: (i) with the consent of the Majority
Banks, the Agent may, or upon the request of the Majority Banks, the Agent
shall, by notice to the Company declare the Commitments to be terminated
forthwith, whereupon the Commitments shall immediately terminate; and (ii) with
the consent of the Majority Banks, the Agent may, or upon the request of the
Majority Banks, the Agent shall, by notice of default to the Company, declare
the Loans hereunder (with accrued interest thereon) and all other amounts owing
under this Agreement and the Notes (including, without limitation, all amounts
of L/C Obligations, whether or not the beneficiaries of the then outstanding
Letters of Credit shall have presented the documents required thereunder)  (the
"Bank Obligation") to be due and payable forthwith, whereupon the same shall
immediately become due and payable.

         With respect to all Letters of Credit as to which presentment for
honor shall not have occurred at the time of an acceleration pursuant to the
preceding paragraph, the Company shall at such time deposit in a cash
collateral account opened by the Agent an amount equal to the aggregate then
undrawn and unexpired amount of such Letters of Credit.  Amounts held in such
cash collateral account shall be applied by the Agent to the payment of drafts
drawn under such Letters of Credit, and the unused portion thereof after all
such Letters of Credit shall have expired or been fully drawn upon, if any,
shall be applied to repay other obligations of the Company hereunder and under
the Notes.  After all such Letters of Credit shall have expired or been fully 
drawn upon, all Reimbursement Obligations shall have been satisfied and all 
other obligations of the Company hereunder and under the Notes shall have been
paid in full, the balance, if any, in such cash collateral account shall be 
returned to the Company.

        Except as expressly provided above in this Section, presentment,
demand, protest and all other notices of any kind are hereby expressly waived.
<PAGE>   65
                                                                              61

        8.2  Annulment of Defaults.  An Event of Default shall not be deemed to
be in existence for any purpose of this Agreement if the Agent, with the
consent of or at the direction of the Majority Banks, subject to subsection
10.1, shall have waived such event in writing or stated in writing that the
same has been cured to its reasonable satisfaction, but no such waiver shall
extend to or affect any subsequent Event of Default or impair any rights of the
Agent or the Banks upon the occurrence thereof.

        8.3  Waivers.  The Company hereby waives to the extent permitted by
applicable law (a) all presentments, demands for performance, notices of
nonperformance (except to the extent required by the provisions hereof),
protests, notices of protest and notices of dishonor in connection with any
Reimbursement Obligation or any of the Indebtedness evidenced by the Notes, 
(b) any requirement of diligence or promptness on the part of any Bank in the
enforcement of its rights under the provisions of this Agreement, any Letter of
Credit or any Note, and (c) any and all notices of every kind and description
which may be required to be given by any statute or rule of law and any defense
of any kind which the Company may now or hereafter have with respect to its
liability under this Agreement, any Letter of Credit or any Note.

        8.4  Course of Dealing.  No course of dealing between the Company and
any Bank shall operate as a waiver of any of the Banks' rights under this
Agreement or any Note.  No delay or omission on the part of any Bank in
exercising any right under this Agreement or any Note or with respect to any of
the Bank Obligations shall operate as a waiver of such right or any other right
hereunder.  A waiver on any one occasion shall not be construed as a bar to or
waiver of any right or remedy on any future occasion.  No waiver or consent
shall be binding upon any Bank unless it is in writing and signed by the Agent
or such of the Banks as may be required by the provisions of this Agreement.
The making of a Loan or issuance of a Letter of Credit hereunder during the
existence of a Default shall not constitute a waiver thereof.

        SECTION 9.  THE AGENT

        9.1  Appointment.  Each Bank hereby irrevocably designates and appoints
Chemical Bank as the Agent and CAF Loan Agent of such Bank under this
Agreement, and each such Bank irrevocably authorizes Chemical Bank, as the
Agent and CAF Loan Agent for such Bank, to take such action on its behalf under
the provisions of this Agreement and to exercise such powers and perform such
duties as are expressly delegated to the Agent or CAF Loan Agent, as the case
may be, by the terms of this Agreement, together with such other powers as are
reasonably incidental thereto.  Notwithstanding any provision to the contrary
elsewhere in this Agreement, neither the Agent nor the
<PAGE>   66
                                                                              62

CAF Loan Agent shall have any duties or responsibilities, except those
expressly set forth herein, or any fiduciary relationship with any Bank, and
no implied covenants, functions, responsibilities, duties, obligations or
liabilities shall be read into this Agreement or otherwise exist against the
Agent or the CAF Loan Agent.

        9.2  Delegation of Duties.  The Agent or the CAF Loan Agent may execute
any of its duties under this Agreement by or through agents or
attorneys-in-fact and shall be entitled to advice of counsel concerning all
matters pertaining to such duties.  Neither the Agent nor the CAF Loan Agent
shall be responsible for the negligence or misconduct of any agents or
attorneys-in-fact selected by it with reasonable care.

        9.3  Exculpatory Provisions.  Neither the Agent nor the CAF Loan Agent
nor any of its officers, directors, employees, agents, attorneys-in-fact or
Affiliates shall be (a) liable for any action lawfully taken or omitted to be
taken by it or such Person under or in connection with this Agreement (except
for its or such Person's own gross negligence or willful misconduct), or (b)
responsible in any manner to any of the Banks for any recitals, statements,
representations or warranties made by the Company or any officer thereof
contained in this Agreement or in any certificate, report, statement or other
document referred to or provided for in, or received by the Agent or the CAF
Loan Agent under or in connection with, this Agreement or for the value,
validity, effectiveness, genuineness, enforceability or sufficiency of this
Agreement or the Notes or for any failure of the Company to perform its
obligations hereunder.  Neither the Agent nor the CAF Loan Agent shall be under
any obligation to any Bank to ascertain or to inquire as to the observance or
performance of any of the agreements contained in, or conditions of, this
Agreement, or to inspect the properties, books or records of the Company.

        9.4  Reliance by Agent.  The Agent and the CAF Loan Agent shall be
entitled to rely, and shall be fully protected in relying, upon any Note,
writing, resolution, notice, consent, certificate, affidavit, letter,
cablegram, telegram, telecopy, telex or teletype message, statement, order or
other document or conversation believed by it to be genuine and correct and to
have been signed, sent or made by the proper Person or Persons and upon advice
and statements of legal counsel (including, without limitation, counsel to the
Company), independent accountants and other experts selected by the Agent or
the CAF Loan Agent.  The Agent may deem and treat the payee of any Note as the
owner thereof for all purposes unless a written notice of assignment,
negotiation or transfer thereof shall have been filed with the Agent.  The
Agent and the CAF Loan Agent shall be fully justified in failing or refusing to
take any action under this Agreement unless it shall first receive such advice
or concurrence of the Majority Banks as it deems appropriate or it shall first
be indemnified to its satisfaction by the Banks against any and all
<PAGE>   67
                                                                              63

liability and expense which may be incurred by it by reason of taking or
continuing to take any such action.  The Agent and the CAF Loan Agent shall in
all cases be fully protected in acting, or in refraining from acting, under
this Agreement and the Notes in accordance with a request of the Majority
Banks, and such request and any action taken or failure to act pursuant thereto
shall be binding upon all the Banks and all future holders of the Notes.

        9.5  Notice of Default.  The Agent shall not be deemed to have
knowledge or notice of the occurrence of any Default or Event of Default
hereunder unless the Agent has received notice from a Bank or the Company
referring to this Agreement, describing such Default or Event of Default and
stating that such notice is a "notice of default".  In the event that the Agent
receives such a notice, the Agent shall promptly give notice thereof to the
Banks.  The Agent shall take such action with respect to such Default or Event
of Default as shall be reasonably directed by the Majority Banks; provided
that, unless and until the Agent shall have received such directions, the Agent
may (but shall not be obligated to) take such action, or refrain from taking
such action, with respect to such Default or Event of Default as it shall deem
advisable in the best interests of the Banks.

        9.6  Non-Reliance on Agent and Other Banks.  Each Bank expressly
acknowledges that neither the Agent nor the CAF Loan Agent nor any of its
officers, directors, employees, agents, attorneys-in-fact or Affiliates has
made any representations or warranties to it and that no act by the Agent or
the CAF Loan Agent hereinafter taken, including any review of the affairs
of the Company, shall be deemed to constitute any representation or warranty by
the Agent to any Bank. Each Bank represents to the Agent and the CAF Loan Agent
that it has, independently and without reliance upon the Agent or the CAF Loan
Agent or any other Bank, and based on such documents and information as it has
deemed appropriate, made its own appraisal of and investigation into the
business, operations, property, financial and other condition and
creditworthiness of the Company and made its own decision to make its Loans
hereunder and enter into this Agreement.  Each Bank also represents that it
will, independently and without reliance upon the Agent or the CAF Loan Agent
or any other Bank, and based on such documents and information as it shall deem
appropriate at the time, continue to make its own credit analysis, appraisals
and decisions in taking or not taking action under this Agreement, and to make
such investigation as it deems necessary to inform itself as to the business,
operations, property, financial and other condition and creditworthiness of the
Company.  Except for notices, reports and other documents expressly
required to be furnished to the Banks by the Agent or the CAF Loan Agent
hereunder, neither the Agent nor the CAF Loan Agent shall have any duty or
responsibility to provide any Bank with any credit or other information
concerning the business, operations, property, financial and other condition or
<PAGE>   68
                                                                              64

creditworthiness of the Company which may come into the possession of the Agent
or the CAF Loan Agent or any of its officers, directors, employees, agents,
attorneys-in-fact or Affiliates.

        9.7  Indemnification.  The Banks agree to indemnify the Agent and the
CAF Loan Agent in its capacity as such (to the extent not reimbursed by the
Company and without limiting the obligation of the Company to do so),
ratably according to the respective amounts of their then existing Commitments,
from and against any and all liabilities, obligations, losses, damages,
penalties, actions, judgments, suits, costs, expenses or disbursements of any
kind whatsoever which may at any time (including without limitation at any time
following the payment of the Notes) be imposed on, incurred by or asserted
against the Agent or the CAF Loan Agent in any way relating to or arising out
of this Agreement, or any documents contemplated by or referred to herein or the
transactions contemplated hereby or any action taken or omitted by the Agent or
the CAF Loan Agent under or in connection with any of the foregoing; provided
that no Bank shall be liable for the payment of any portion of such
liabilities, obligations, losses, damages, penalties, actions, judgments,
suits, costs, expenses or disbursements resulting solely from the Agent's or
the CAF Loan Agent's gross negligence or willful misconduct.  The agreements in
this subsection shall survive the payment of the Notes and all other amounts
payable hereunder.

        9.8  Agent and CAF Loan Agent in Its Individual Capacity.  The Agent
and the CAF Loan Agent and its Affiliates may make loans to, accept deposits
from and generally engage in any kind of business with the Company as though
the Agent or the CAF Loan Agent were not the Agent or the CAF Loan Agent
hereunder.  With respect to its Loans made or renewed by it and any Note issued
to it and with respect to any Letter of Credit issued or participated in by it,
the Agent and the CAF Loan Agent shall have the same rights and powers under
this Agreement as any Bank and may exercise the same as though it were not the
Agent, and the terms "Bank" and "Banks" shall include the Agent or the CAF Loan
Agent in its individual capacity.

        9.9  Successor Agent and CAF Loan Agent.  The Agent or the CAF Loan
Agent may resign as Agent or CAF Loan Agent, as the case may be, upon 10 days'
notice to the Banks.  If the Agent or the CAF Loan Agent shall resign as Agent
or CAF Loan Agent, as the case may be, under this Agreement, then the Majority
Banks shall appoint from among the Banks a successor agent for the Banks which
successor agent shall be approved by the Company, whereupon such successor
agent shall succeed to the rights, powers and duties of the Agent or CAF Loan
Agent, as the case may be, and the term "Agent" or "CAF Loan Agent", as the
case may be, shall mean such successor agent effective upon its appointment,
and the former Agent's or CAF Loan Agent's rights, powers and duties as Agent
or CAF Loan Agent shall be terminated, without any other or further act or deed
on the part of such former Agent
<PAGE>   69
                                                                              65

or CAF Loan Agent or any of the parties to this Agreement or any holders of the
Notes.  After any retiring Agent's or CAF Loan Agent's resignation hereunder as
Agent or CAF Loan Agent, the provisions of this subsection 9.9 shall inure to
its benefit as to any actions taken or omitted to be taken by it while it was
Agent or CAF Loan Agent under this Agreement.

        SECTION 10.   MISCELLANEOUS

        10.1  Amendments and Waivers.  Neither this Agreement, any
Note, nor any terms hereof or thereof may be amended, supplemented or modified
except in accordance with the provisions of this subsection.  With the written
consent of the Majority Banks, the Agent and the Company may, from time to
time, enter into written amendments, supplements or modifications hereto for
the purpose of adding any provisions to this Agreement or the Notes or changing
in any manner the rights of the Banks or of the Company hereunder or thereunder
or waiving, on such terms and conditions as the Agent may specify in such
instrument, any of the requirements of this Agreement or the Notes or any
Default or Event of Default and its consequences; provided, however, that no
such waiver and no such amendment, supplement or modification shall (a) extend
the maturity (whether as stated, by acceleration or otherwise) of any Note
(subject to the extension provisions of subsection 2.4 hereof), or reduce the
rate or extend the time of payment of interest thereon, or reduce any fee
payable to the Banks hereunder, or reduce the principal amount thereof, or
change the amount of any Bank's Commitment or amend, modify or waive any
provision of this subsection 10.1 or reduce the percentage specified in the
definition of Required Banks or Majority Banks, or consent to the assignment
or transfer by the Company of any of its rights and obligations under this
Agreement, in each case without the written consent of all the Banks, or (b)
amend, modify or waive any provision of Section 9 without the written consent
of the then Agent.  Any such waiver and any such amendment, supplement or
modification shall apply equally to each of the Banks and shall be binding upon
the Company, the Banks, the Agent and all future holders of the Notes.  In the
case of any waiver, the Company, the Banks and the Agent shall be restored to
their former position and rights hereunder and under the outstanding Notes, and
any Default or Event of Default waived shall be deemed to be cured and not
continuing; but no such waiver shall extend to any subsequent or other Default
or Event of Default, or impair any right consequent thereon.

        10.2  Notices.  All notices, requests and demands to or upon the
respective parties hereto to be effective shall be in writing (including by
telecopy), and, unless otherwise expressly provided herein, shall be deemed to
have been duly given or made when delivered by hand, or three days after being
deposited in the mail, postage prepaid, or, in the case of telecopy notice,
when sent, confirmation of receipt received, addressed as follows
<PAGE>   70
                                                                              66

in the case of the Company, the Agent, and the CAF Loan Agent and as set forth
in Schedule I in the case of the other parties hereto, or to such other address
as may be hereafter notified by the respective parties hereto and any future
holders of the Notes:

<TABLE>
<S>                   <C>
The Company:          Humana Inc.
                      The Humana Building 
                      500 West Main Street
                      Louisville, Kentucky  40201-1438
                      Attention:  James W. Doucette, 
                                 Vice President, 
                                 Investments and
                                 Treasurer 
                      Telecopy:    (502) 580-4089

The Agent and
CAF Loan Agent:       Chemical Bank 
                      270 Park Avenue
                      New York, New York  10017 
                      Attention:  Carol Burt,
                                Managing Director 
                      Telecopy:   (212) 270-3279 
with a copy to:       Chemical Bank Agency Services
                         Corporation
                      140 East 45th Street 
                      New York, New York  10017 
                      Attention: Janet Belden,
                                Vice President 
                      Telecopy:    (212) 622-0854
</TABLE>

provided that any notice, request or demand to or upon the Agent or the Banks
pursuant to Section 2 shall not be effective until received.

         10.3  No Waiver; Cumulative Remedies.  No failure to exercise and no
delay in exercising, on the part of the Agent or any Bank, any right, remedy,
power or privilege hereunder, shall operate as a waiver thereof; nor shall any
single or partial exercise of any right, remedy, power or privilege hereunder
preclude any other or further exercise thereof or the exercise of any other
right, remedy, power or privilege.  The rights, remedies, powers and privileges
herein provided are cumulative and not exclusive of any rights, remedies, powers
and privileges provided by law.

        10.4  Survival of Representations and Warranties.  All representations
and warranties made hereunder and in any document, certificate or statement
delivered pursuant hereto or in connection herewith shall survive the execution
and delivery of this Agreement and the Notes.
<PAGE>   71
                                                                              67

        10.5  Payment of Expenses and Taxes; Indemnity. (a)  The Company agrees
(i) to pay or reimburse the Agent for all its reasonable out-of-pocket costs and
expenses incurred in connection with the development, preparation and execution
of, and any amendment, supplement or modification to, this Agreement and the
Notes and any other documents prepared in connection herewith, and the
consummation of the transactions contemplated hereby and thereby, including,
without limitation, the reasonable fees and disbursements of counsel to the
Agent,  (ii) to pay or reimburse each Bank and the Agent for all their
reasonable costs and expenses incurred in connection with the enforcement or
preservation of any rights under this Agreement, the Notes and any such other
documents, including, without limitation, reasonable fees and disbursements of
counsel to the Agent and to the several Banks, and (iii) to pay, indemnify, and
hold each Bank and the Agent harmless from, any and all recording and filing
fees and any and all liabilities with respect to, or resulting from any delay in
paying, stamp, excise and other taxes, if any, which may be payable or
determined to be payable in connection with the execution and delivery of, or
consummation of any of the transactions contemplated by, or any amendment,
supplement or modification of, or any waiver or consent under or in respect of,
this Agreement, the Notes and any such other documents.

        (b)  The Company will indemnify each of the Agent and the Banks and the
directors, officers and employees thereof and each Person, if any, who controls
each one of the Agent and the Banks (any of the foregoing, an "Indemnified
Person") and hold each Indemnified Person harmless from and against any and all
claims, damages, liabilities and expenses (including without limitation all
fees and disbursements of counsel with whom an Indemnified Person may
consult in connection therewith and all expenses of litigation or preparation
therefor) which an Indemnified Person may incur or which may be asserted
against it in connection with any litigation or investigation involving this
Agreement, the use of any proceeds of any Loans under this Agreement by the
Company or any Subsidiary, any officer, director or employee thereof, other
than litigation commenced by the Company against any of the Agent or the Banks
which (i) seeks enforcement of any of the Company's right hereunder and (ii) is
determined adversely to any of the Agent or the Banks.

        (c)  The agreements in this subsection 10.5 shall survive repayment of
the Notes and all other amounts payable hereunder.

        10.6  Successors and Assigns; Participations; Purchasing Banks. (a) 
This Agreement shall be binding upon and inure to the benefit of the Company,
the Banks, the Agent, all future holders of the Notes and their respective
successors and assigns, except that the Company may not assign or transfer any
of its rights or obligations under this Agreement without the prior written
consent of each Bank.
<PAGE>   72
                                                                              68

         (b)  Any Bank may, in the ordinary course of its commercial banking
business and in accordance with applicable law, at any time sell to one or more
banks or other entities ("Participants") participating interests in any Loans
owing to such Bank, any Notes held by such Bank, any Commitments of such Bank or
any other interests of such Bank hereunder and under the other Loan Documents. 
In the event of any such sale by a Bank of a participating interest to a
Participant, such Bank's obligations under this Agreement to the other parties
under this Agreement shall remain unchanged, such Bank shall remain solely
responsible for the performance thereof, such Bank shall remain the holder of
any such Notes for all purposes under this Agreement, and the Company and the
Agent shall continue to deal solely and directly with such Bank in connection
with such Bank's rights and obligations under this Agreement and under the other
Loan Documents.  The Company agrees that if amounts outstanding under this
Agreement and the Notes are due or unpaid, or shall have been declared or shall
have become due and payable upon the occurrence of an Event of Default, each
Participant shall be deemed to have the right of offset in respect of its
participating interest in amounts owing under this Agreement and any Notes to
the same extent as if the amount of its participating interest were owing
directly to it as a Bank under this Agreement or any Notes, provided that such
right of offset shall be subject to the obligation of such Participant to share
with the Banks, and the Banks agree to share with such Participant, as provided
in subsection 10.7.  The Company also agrees that each Participant shall be
entitled to the benefits of subsections 2.12, 2.13 and 2.15 with respect to its
participation in the Commitments and the Eurodollar Loans outstanding from time
to time; provided that no Participant shall be entitled to receive any greater
amount pursuant to such subsections than the transferor Bank would have been
entitled to receive in respect of the amount of the participation transferred by
such transferor Bank to such Participant had no such transfer occurred.  No
Participant shall be entitled to consent to any amendment, supplement,
modification or waiver of or to this Agreement or any Note, unless the same is
subject to clause (a) of the proviso to subsection 10.1.

         (c)  Any Bank may, in the ordinary course of its commercial banking
business and in accordance with applicable law, at any time assign to one or
more banks or other entities ("CAF Loan Assignees") any CAF Loan owing to such
Bank and any Individual CAF Loan Note held by such Bank evidencing such CAF
Loan, pursuant to a CAF Loan Assignment executed by the assignor Bank and the
CAF Loan Assignee.  Upon such execution, from and after the date of such CAF
Loan Assignment, the CAF Loan Assignee shall, to the extent of the assignment
provided for in such CAF Loan Assignment, be deemed to have the same rights and
benefits of payment and enforcement with respect to such CAF Loan and Individual
CAF Loan Note and the same rights of offset pursuant to subsection 8.1 and under
applicable law and obligation to share pursuant to subsection 10.7 as it would
have had if it were
<PAGE>   73
                                                                              69

a Bank hereunder; provided that unless such CAF Loan Assignment shall otherwise
specify and a copy of such CAF Loan Assignment shall have been delivered to the
Agent for its acceptance and recording in the Register in accordance with
subsection 10.6(f), the assignor thereunder shall act as collection agent for
the CAF Loan Assignee thereunder, and the Agent shall pay all amounts received
from the Company which are allocable to the assigned CAF Loan or Individual CAF
Loan Note directly to such assignor without any further liability to such CAF
Loan Assignee.  A CAF Loan Assignee under a CAF Loan Assignment shall not, by
virtue of such CAF Loan Assignment, become a party to this Agreement or have
any rights to consent to or refrain from consenting to any amendment, waiver or
other modification of any provision of this Agreement or any related document;
provided that if a copy of such CAF Loan Assignment shall have been delivered
to the Agent for its acceptance and recording in the Register in accordance
with subsection 10.6(f), neither the principal amount of, the interest rate on,
nor the maturity date of any CAF Loan or Individual CAF Loan Note assigned to
the CAF Loan Assignee thereunder will be modified without the written consent
of such CAF Loan Assignee.  If a CAF Loan Assignee has caused a CAF Loan
Assignment to be recorded in the Register in accordance with subsection
10.6(f), such CAF Loan Assignee may thereafter, in the ordinary course of its
business and in accordance with applicable law, assign such Individual CAF Loan
Note to any Bank, to any affiliate or subsidiary of such CAF Loan Assignee or
to any other financial institution that has total assets in excess of
$1,000,000,000 and that in the ordinary course of its business extends credit
of the type evidenced by such Individual CAF Loan Note, and the foregoing
provisions of this subsection 10.6(c) shall apply, mutatis mutandis, to any
such assignment by a CAF Loan Assignee.  Except in accordance with the
preceding sentence, CAF Loans and Individual CAF Loan Notes may not be further
assigned by a CAF Loan Assignee, subject to any legal or regulatory requirement
that the CAF Loan Assignee's assets must remain under its control.

         (d) Any Bank may, in the ordinary course of its commercial banking
business and in accordance with applicable law, at any time sell to any Bank or
any affiliate thereof, and, with the consent of the Company and the Agent
(which in each case shall not be unreasonably withheld) to one or more
additional banks or financial institutions ("Purchasing Banks") all or any part
of its rights and obligations under this Agreement and the Notes pursuant to a
Commitment Transfer Supplement, executed by such Purchasing Bank, such
transferor Bank and the Agent (and, in the case of a Purchasing Bank that is
not then a Bank or an affiliate thereof, by the Company); provided, however,
that (i) the Commitments purchased by such Purchasing Bank that is not then a
Bank shall be equal to or greater than $10,000,000 and (ii) the transferor Bank
which has transferred less than all of its Loans and Commitments to any such
Purchasing Bank shall retain a minimum Commitment, after giving effect to such
sale, equal to or greater than $10,000,000.  Upon (i) such execution of
<PAGE>   74
                                                                              70

such Commitment Transfer Supplement, (ii) delivery of an executed copy thereof
to the Company and (iii) payment by such Purchasing Bank, such Purchasing Bank
shall for all purposes be a Bank party to this Agreement and shall have all the
rights and obligations of a Bank under this Agreement, to the same extent as if
it were an original party hereto with the Commitment Percentage of the
Commitments set forth in such Commitment Transfer Supplement. Such Commitment
Transfer Supplement shall be deemed to amend this Agreement to the extent, and
only to the extent, necessary to reflect the addition of such Purchasing Bank
and the resulting adjustment of Commitment Percentages arising from the
purchase by such Purchasing Bank of all or a portion of the rights and
obligations of such transferor Bank under this Agreement and the Notes.  Upon
the consummation of any transfer to a Purchasing Bank, pursuant to this
subsection 10.6(d), the transferor Bank, the Agent and the Company shall make
appropriate arrangements so that, if required, replacement Notes are issued to
such transferor Bank and new Notes or, as appropriate, replacement Notes, are
issued to such Purchasing Bank, in each case in principal amounts reflecting
their Commitment Percentages or, as appropriate, their outstanding Loans as
adjusted pursuant to such Commitment Transfer Supplement.

        (e)  The Agent shall maintain at its address referred to in subsection
10.2 a copy of each CAF Loan Assignment and each Commitment Transfer Supplement
delivered to it and a register (the "Register") for the recordation of (i) the
names and addresses of the Banks and the Commitment of, and principal amount of
the Loans owing to, each Bank from time to time, and (ii) with respect to each
CAF Loan Assignment delivered to the Agent, the name and address of the CAF Loan
Assignee and the principal amount of each CAF Loan owing to such CAF Loan
Assignee.  The entries in the Register shall be conclusive, in the absence of
manifest error, and the Company, the Agent and the Banks may treat each Person
whose name is recorded in the Register as the owner of the Loan recorded therein
for all purposes of this Agreement.  The Register shall be available for
inspection by the Company or any Bank or CAF Loan Assignee at any reasonable
time and from time to time upon reasonable prior notice.

        (f)  Upon its receipt of a CAF Loan Assignment executed by an assignor
Bank and a CAF Loan Assignee, together with payment to the Agent of a
registration and processing fee of $1,000, the Agent shall promptly accept such
CAF Loan Assignment, record the information contained therein in the Register
and give notice of such acceptance and recordation to the assignor Bank, the CAF
Loan Assignee and the Company.  Upon its receipt of a Commitment Transfer
Supplement executed by a transferor Bank and a Purchasing Bank (and, in the case
of a Purchasing Bank that is not then a Bank or an affiliate thereof, by the
Company and the Agent) together with payment to the Agent of a registration and
processing fee of $2,500, the Agent shall (i) promptly accept such Commitment
Transfer Supplement (ii) on the Transfer
<PAGE>   75
                                                                              71

Effective Date determined pursuant thereto record the information contained
therein in the Register and give notice of such acceptance and recordation to
the Banks and the Company.

        (g)  The Company authorizes each Bank to disclose to any Participant,
CAF Loan Assignee or Purchasing Bank (each, a "Transferee") and any prospective
Transferee any and all financial information in such Bank's possession
concerning the Company which has been delivered to such Bank by the Company
pursuant to this Agreement or which has been delivered to such Bank by the
Company in connection with such Bank's credit evaluation of the Company prior to
entering into this Agreement.

        (h)  If, pursuant to this subsection 10.6, any interest in this
Agreement or any Note is transferred to any Transferee which is organized under
the laws of any jurisdiction other than the United States or any State thereof,
the transferor Bank shall cause such Transferee, concurrently with the
effectiveness of such transfer, (i) to represent to the transferor Bank (for
the benefit of the transferor Bank, the Agent and the Company) that under
applicable law and treaties no taxes will be required to be withheld by the
Agent, the Company or the transferor Bank with respect to any payments to be
made to such Transferee in respect of the Loans, (ii) to furnish to the
transferor Bank (and, in the case of any Purchasing Bank and any CAF Loan
Assignee registered in the Register, the Agent and the Company) either U.S.
Internal Revenue Service Form 4224 or U.S. Internal Revenue Service Form 1001
(wherein such Transferee claims entitlement to complete exemption from U.S.
federal withholding tax on all interest payments hereunder) and (iii) to agree
(for the benefit of the transferor Bank, the Agent and the Company) to provide
the transferor Bank (and, in the case of any Purchasing Bank and any CAF Loan
Assignee registered in the Register, the Agent and the Company) a new Form 4224
or Form 1001 upon the obsolescence of any previously delivered form and
comparable statements in accordance with applicable U.S. laws and regulations
and amendments duly executed and completed by such Transferee, and to comply
from time to time with all applicable U.S. laws and regulations with regard to
such withholding tax exemption.

        (i)  Nothing herein shall prohibit any Bank or any Affiliate thereof
from pledging or assigning any Note to any Federal Reserve Bank in accordance
with applicable law.

        10.7  Adjustments; Set-off.  If any Bank (a "Benefitted Bank") shall at
any time receive any payment of all or part of its Loans or the Reimbursement
Obligations owing to it, or interest thereon, or receive any collateral in
respect thereof (whether voluntarily or involuntarily, by offset, pursuant to
events or proceedings of the nature referred to in subsection 8.1(f), or
otherwise) in a greater proportion than any such payment to and collateral
received by any other Bank, if any, in respect of such other Bank's Loans or the
Reimbursement Obligations owing to it, or interest thereon, such Benefitted
<PAGE>   76
                                                                              72

Bank shall purchase for cash from the other Banks such portion of each such 
other Bank's Loans or the Reimbursement Obligations owing to it, or
shall provide such other Banks with the benefits of any such collateral, or the
proceeds thereof, as shall be necessary to cause such Benefitted Bank to share
the excess payment or benefits of such collateral or proceeds ratably with each
of the Banks; provided, however, that if all or any portion of such excess
payment or benefits is thereafter recovered from such Benefitted Bank, such
purchase shall be rescinded, and the purchase price and benefits returned, to 
the extent of such recovery, but without interest.  The Company agrees that
each Bank so purchasing a portion of another Bank's Loan may exercise all rights
of a payment (including, without limitation, rights of offset) with respect to
such portion as fully as if such Bank were the direct holder of such portion.

        10.8  Counterparts.  This Agreement may be executed by one or more of
the parties to this Agreement on any number of separate counterparts and all of
said counterparts taken together shall be deemed to constitute one and the same
instrument.  A set of the copies of this Agreement signed by all the parties
shall be lodged with the Company and the Agent.

        10.9  GOVERNING LAW.  THIS AGREEMENT AND THE NOTES AND THE RIGHTS AND
OBLIGATIONS OF THE PARTIES UNDER THIS AGREEMENT AND THE NOTES SHALL BE GOVERNED
BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE STATE OF
NEW YORK.

        10.10  WAIVERS OF JURY TRIAL.  THE COMPANY, THE AGENT, THE CAF LOAN
AGENT AND THE BANKS EACH HEREBY IRREVOCABLY AND UNCONDITIONALLY WAIVE TRIAL BY
JURY IN ANY LEGAL ACTION OR PROCEEDING RELATING TO THIS AGREEMENT, THE NOTES OR
ANY OTHER LOAN DOCUMENT AND FOR ANY COUNTERCLAIM THEREIN.

        10.11  Submission To Jurisdiction; Waivers.  The Company hereby
irrevocably and unconditionally:

         (a)  submits for itself and its property in any legal action or
    proceeding relating to this Agreement, or for recognition and
    enforcement of any judgement in respect thereof, to the non-exclusive
    general jurisdiction of the Courts of the State of New York, the courts of
    the United States of America for the Southern District of New York, and
    appellate courts from any thereof; and

         (b)  consents that any such action or proceeding may be brought in 
    such courts, and waives any objection that it may now or hereafter have
    to the venue of any such action or proceeding in any such court or that such
    action or proceeding was brought in an inconvenient court and agrees not to
    plead or claim the same.

        10.12  Confidentiality of Information.  Each Bank acknowledges that some
of the information furnished to such Bank

<PAGE>   77

                                                                              73

pursuant to this Agreement may be received by such Bank prior to the time such
information shall have been made public, and each Bank agrees that it will keep
all information so furnished confidential and shall make no use of such
information until it shall have become public, except (a) in connection with
matters involving operations under or enforcement of this Agreement or the
Notes,  (b) in accordance with each Bank's obligations under law or pursuant to
subpoenas or other process to make information available to governmental
agencies and examiners or to others, (c) to each Bank's corporate Affiliates
and Transferees and prospective Transferees so long as such Persons agree to be
bound by this subsection 10.12 and (d) with the prior consent of the Company.
<PAGE>   78
                                                                              74

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

<TABLE>
<S>                                           <C>                                
                                              HUMANA INC.
                                              
                                            
                                              By: /s/ JAMES W. DOUCETTE
                                                  --------------------------------------------
                                                  Name:   James W. Doucette
                                                        --------------------------------------
                                                  Title:  V.P. Investments & Treasurer
                                                        --------------------------------------
                                                                                                  
                                            
                                              CHEMICAL BANK, as Agent, as CAF             
                                                Loan Agent and as a Bank

                                              By:  /s/  PETER ECKSTEIN
                                                  --------------------------------------------
                                                  Name:   Peter Eckstein
                                                        --------------------------------------
                                                  Title:  V.P.
                                                        --------------------------------------


                                              CITIBANK, N.A.

                                              By:   /s/  BARBARA A. COHEN
                                                  --------------------------------------------
                                                  Name:   Barbara A. Cohen
                                                        --------------------------------------
                                                  Title:  Vice President
                                                        --------------------------------------


                                              NATIONSBANK OF GEORGIA, N.A. 

                                              By:   /s/  ASHLEY M. CRABTREE
                                                  --------------------------------------------
                                                  Name:   Ashley M. Crabtree
                                                        --------------------------------------
                                                  Title:  Vice President
                                                        --------------------------------------


                                              NATIONAL CITY BANK, KENTUCKY

                                              By:    /s/  CHARLES P. DENNY
                                                  -------------------------------------------
                                                  Name:    Charles P. Denny
                                                        -------------------------------------
                                                  Title:   Senior Vice President
                                                        -------------------------------------


                                              PNC BANK, KENTUCKY, INC. 

                                              By:     /s/  JEFFERSON M. GREEN
                                                  -------------------------------------------
                                                  Name:      Jefferson M. Green
                                                        -------------------------------------
                                                  Title:     V.P.
                                                        -------------------------------------
                                              

</TABLE>
<PAGE>   79
                                                                              75

<TABLE>
<S>                                           <C>
                                              WACHOVIA BANK OF GEORGIA, N.A.

                                              By: /S/ DAVID L. GAINES 
                                                  --------------------------------------------
                                                  Name:   David L. Gaines
                                                        --------------------------------------
                                                  Title:  SENIOR VICE PRESIDENT
                                                        --------------------------------------
                                                                                                  
                                            
                                              BANK OF AMERICA NATIONAL TRUST            
                                                & SAVINGS ASSOCIATION

                                              By: /s/ KATHERINE MCNALLEN
                                                  --------------------------------------------
                                                  Name:  Katherine McNallen
                                                        --------------------------------------
                                                  Title: Vice President
                                                        --------------------------------------


                                              THE BANK OF NOVA SCOTIA

                                              By: /s/ F.C.H ASHBY
                                                  --------------------------------------------
                                                  Name: F.C.H. Ashby
                                                        --------------------------------------
                                                  Title: Senior Manager Loan Operations
                                                        --------------------------------------


                                              THE CHASE MANHATTAN BANK, N.A.


                                              By: /s/ MICHAEL K. BAYLEY
                                                  --------------------------------------------
                                                  Name: Michael K. Bayley
                                                        --------------------------------------
                                                  Title: Vice President
                                                        --------------------------------------


                                              FIRST INTERSTATE BANK OF CALIFORNIA


                                              By: /s/ BRUCE P. MCDONALD
                                                  -------------------------------------------
                                                  Name: Bruce P. McDonald
                                                        -------------------------------------
                                                  Title: Vice President
                                                        -------------------------------------


                                              LIBERTY NATIONAL BANK AND TRUST
                                                 CO. OF KENTUCKY

                                              By: /s/ EARL A. DORSEY
                                                  -------------------------------------------
                                                  Name: Earl A. Dorsey
                                                        -------------------------------------
                                                  Title: S.V.P.
                                                        -------------------------------------
                                              
</TABLE>
<PAGE>   80
                                                                              76

<TABLE>
<S>                                           <C>
                                              THE TORONTO-DOMINION BANK

                                              By: /S/ E.E. WALKER
                                                  --------------------------------------------
                                                  Name:   E.E. Walker
                                                        --------------------------------------
                                                  Title:  Mgr. Cr. Admin.
                                                        --------------------------------------
                                                                                                  
                                            
                                              THE SANWA BANK, LIMITED,
                                                 ATLANTA AGENCY

                                              By: /s/ PETER J. PAWLAK
                                                  --------------------------------------------
                                                  Name: Peter J. Pawlak
                                                        --------------------------------------
                                                  Title: Senior Vice President and Senior Manager
                                                        --------------------------------------


                                              BANK OF LOUISVILLE & TRUST COMPANY

                                              By: /s/ GAIL W. POHN
                                                  --------------------------------------------
                                                  Name: Gail W. Pohn
                                                        --------------------------------------
                                                  Title: Executive Vice President
                                                        --------------------------------------


                                              BARNETT BANK OF BROWARD
                                                COUNTY, N.A.


                                              By: /s/ MICHAEL COONEY
                                                  --------------------------------------------
                                                  Name: Michael Cooney
                                                        --------------------------------------
                                                  Title: Vice President
                                                        --------------------------------------


                                              THE BOATMEN'S NATIONAL BANK OF
                                                 ST. LOUIS


                                              By: /s/ DOUGLAS W. THORNSBERRY
                                                  -------------------------------------------
                                                  Name: Douglas W. Thornsberry
                                                        -------------------------------------
                                                  Title: Corporate Banking Officer
                                                        -------------------------------------


                                              SHAWMUT BANK CONNECTICUT, N.A.
                                                 

                                              By: /s/ MANFRED O. EIGENBROD
                                                  -------------------------------------------
                                                  Name: Manfred O. Eigenbrod
                                                        -------------------------------------
                                                  Title: Vice President
                                                        -------------------------------------


</TABLE>

<PAGE>   81

                             AGREEMENT AND AMENDMENT


           AGREEMENT AND AMENDMENT, dated as of October 27, 1994, among HUMANA
INC., a Delaware corporation (the "Company"), the several banks and other
financial institutions from time to time parties hereto (the "Banks") and
CHEMICAL BANK, a New York banking corporation, as agent for the Banks hereunder
(in such capacity, the "Agent") and as CAF Loan agent (in such capacity, the
"CAF Loan Agent").


                             W I T N E S S E T H :


           WHEREAS, the Company, the Agent, the CAF Loan Agent and certain banks
and other financial institutions (the "Original Banks") are parties to the
Credit Agreement, dated as of January 12, 1994 (as amended, supplemented or
otherwise modified to the date hereof, the "Original Credit Agreement"),
pursuant to which the Original Banks committed to make loans to the Company for
a period of three years;

           WHEREAS, effective as of the Closing Date (as defined below), the
Company intends to terminate the Commitments (as defined in the Original Credit
Agreement) of the Original Banks under the Original Credit Agreement pursuant to
subsection 2.4(a) thereof;

           WHEREAS, the Company has requested that the Agent, the CAF Loan Agent
and the Banks enter into a new agreement adopting and incorporating by reference
all of the terms and provisions of the Original Credit Agreement with certain
amendments and modifications thereto; and

           WHEREAS, the Agent, the CAF Loan Agent and the Banks are willing to
so enter into a new agreement, but only upon the terms and subject to the
conditions set forth below;

           NOW THEREFORE, in consideration of the premises and mutual agreements
herein contained and for other good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged by each of the parties hereto, the
parties hereto hereby agree as follows:

           SECTION 1. Adoption and Incorporation of Original Credit Agreement.
Subject to the amendments and modifications set forth in Sections 3 through 13
of this Agreement, all of the terms and provisions of the Original Credit
Agreement are hereby adopted and incorporated by reference into this Agreement,
with the same force and effect as if fully set forth herein. This Agreement
shall not constitute an amendment or waiver of any provision of the Original
Credit Agreement not expressly referred to herein and shall not be construed as
an amendment, waiver or consent to any action on the part of the Company that
would

<PAGE>   82
                                                                               2

require an amendment, waiver or consent of the Agent or the Banks except as
expressly stated herein.  Except as expressly amended hereby, the provisions of
the Original Credit Agreement as adopted and incorporated by reference into
this Agreement are and shall remain in full force and effect.

           SECTION 2. Definitions. As used in this Agreement, terms defined
herein are used as so defined and, unless otherwise defined herein, terms
defined in the Original Credit Agreement are used herein as therein defined.

           SECTION 3. Defined Terms. For purposes of this Agreement, subsection
1.1 of the Original Credit Agreement as adopted and incorporated by reference
into this Agreement is hereby amended as follows:

           (a) by deleting the defined terms "Level I Utilization Period",
"Level II Utilization Period" and "Level III Utilization Period" in their
entirety.

           (b) by deleting the defined terms "Agreement", "Applicable Margin",
"Closing Date", "L/C Sublimit" and "Termination Date" in their entirety and
substituting in lieu thereof the following:

           "`Agreement': this Credit Agreement as adopted and incorporated by
      reference into the Agreement and Amendment, as amended by the Agreement
      and Amendment and as further amended, supplemented or otherwise modified
      from time to time.";

           "`Applicable Margin': for each Type of Revolving Credit Loan, for any
      fiscal quarter, the applicable rate per annum set forth in Schedule 2
      hereto opposite the Consolidated Capitalization Ratio then in effect. Such
      Applicable Margin shall be in effect for the period beginning the first
      Business Day following the date to which the Consolidated Capitalization
      Ratio Certificate is applicable.

           "`Closing Date': the date on which all of the conditions precedent
      for the Closing Date set forth in Section 14 of the Agreement and
      Amendment shall have been fulfilled; provided, however, that for purposes
      of Section 5 of the Original Credit Agreement, the term "Closing Date"
      shall mean the Original Closing Date.";

           "`L/C Sublimit': $100,000,000."; and

           "`Termination Date': the date one day before the fifth anniversary of
      the Closing Date (or, if such date is not a Business Day, the next
      succeeding Business Day), or such other Business Day to which the
      Termination Date may be changed pursuant to subsection 2.4 of the Original
      Credit 

<PAGE>   83

                                                                               3


           Agreement as adopted and incorporated by reference into the Agreement
           and Amendment).".

           (c) by inserting in said subsection 1.1 of the Original Credit
Agreement in the appropriate alphabetical order the following defined terms:

           "`Agreement and Amendment': the Agreement and Amendment, dated as of
      October 27, 1994, among the Company, the Banks, the Agent and the CAF Loan
      Agent.";

           "`Average Quarterly Commitment': as defined in subsection 2.3(a)
      hereto.";

           "`Banks': the several banks and other financial institutions (which
      may include certain Original Banks) from time to time parties to the
      Agreement and Amendment.";

           "`Consolidated Capitalization Ratio': as at the end of any fiscal
      quarter, the ratio of (i) Consolidated Total Debt to (ii) the sum of (A)
      Consolidated Total Debt and (B) Consolidated Net Worth, in each case at
      such date.";

           "`Consolidated Capitalization Ratio Certificate': as defined in
      subsection 6.4(b) hereto.";

           "`Original Banks': as defined in the recitals to the Agreement and
      Amendment.";

           "`Original Closing Date': January 12, 1994."; and

           "`Original Credit Agreement': as defined in the recitals to the
      Agreement and Amendment.".

           SECTION 4. Fees.

           For purposes of this Agreement, subsection 2.3(a) of the Original
Credit Agreement as adopted and incorporated by reference into this Agreement is
hereby amended by deleting such subsection in its entirety and substituting in
lieu thereof the following:

                "(a) The Company agrees to pay to the Agent, for the account of
           each Bank, on the last day of each fiscal quarter, a facility fee in
           respect of the average daily amount of the Commitment of such Bank
           during such fiscal quarter (such amount, the "Average Quarterly
           Commitment"). Such fee shall be computed at the rate per annum set
           forth in the table below opposite the Consolidated Capitalization
           Ratio then in effect (as determined in accordance with the definition
           of Applicable Margin).

<PAGE>   84
                                                                               4




<TABLE>
<CAPTION>
                           Consolidated                    Facility Fee
                       Capitalization Ratio              (Rate Per Annum)
                     ------------------------------      ----------------
                     <S>                                 <C>       
                     less than .20                            .1250%
                     at least .20 but less than .30           .1750%
                     at least .30 but less than .40           .2250%
                     at least .40                             .3125%.".
 </TABLE>


           SECTION 5. Extension of Commitments. For purposes of this Agreement,
subsection 2.4(b) of the Original Credit Agreement as adopted and incorporated
by reference into this Agreement is hereby amended by deleting the word "fifth"
in the ninth line thereof and substituting in lieu thereof the word "seventh".

           SECTION 6. Letters of Credit. For purposes of this Agreement,
subsection 3.3(a) of the Original Credit Agreement as adopted and incorporated
by reference into this Agreement is hereby amended by deleting such subsection
in its entirety and substituting in lieu thereof the following:

           "(a) The Company shall pay to the Agent, for the account of the
      Issuing Bank and the L/C Participants, a letter of credit commission with
      respect to each Letter of Credit, computed at the rate per annum set forth
      in the table below opposite the Consolidated Capitalization Ratio then in
      effect (as determined in accordance with the definition of Applicable
      Margin), of which .125% per annum shall be payable to the Issuing Bank and
      the balance shall be payable to the L/C Participants to be shared ratably
      among them in accordance with their respective Commitment Percentages.
      Such fee shall be payable on each L/C Fee Payment Date and shall be
      nonrefundable.".

<TABLE>
<CAPTION>
                        Consolidated                           L/C Commission
                     Capitalization Ratio                     (Rate per Annum)
                 ------------------------------               ----------------
                 <S>                                           <C>
                 less than .20                                     .3750%
                 at least .20 but less than .30                    .4500%
                 at least .30 but less than .40                    .5000%
                 at least .40                                      .5625%.".
</TABLE>



           SECTION 7. Litigation. For purposes of this Agreement, subsection 4.3
of the Original Credit Agreement as adopted and incorporated by reference into
this Agreement is hereby amended by deleting such subsection in its entirety and
substituting in lieu thereof the following:

<PAGE>   85
                                                                               5


           "4.3 Litigation. Except as disclosed in the Company's Annual Report
      on Form 10-K for its fiscal year ended December 31, 1993 and the Company's
      Quarterly Reports on Form 10-Q for its fiscal quarters ended March 31,
      1994 and June 30, 1994 filed with the Securities and Exchange Commission
      and previously distributed to the Banks, there is no litigation, at law or
      in equity, or any proceeding before any federal, state, provincial or
      municipal board or other governmental or administrative agency, including
      without limitation, HMO Regulators and Insurance Regulators, pending or to
      the knowledge of the Company threatened which, after giving effect to any
      applicable insurance, may involve any material risk of a Material Adverse
      Effect or which seeks to enjoin the consummation of any of the
      transactions contemplated by this Agreement or any other Loan Document,
      and no judgment, decree, or order of any federal, state, provincial or
      municipal court, board or other governmental or administrative agency,
      including without limitation, HMO Regulators and Insurance Regulators, has
      been issued against the Company or any Subsidiary which has, or may
      involve, a material risk of a Material Adverse Effect. The Company does
      not believe that the final resolution of the matters disclosed in its
      Annual Report on Form 10-K for its fiscal year ended December 31, 1993 and
      the Company's Quarterly Reports on Form 10-Q for its fiscal quarters ended
      March 31, 1994 and June 30, 1994 filed with the Securities and Exchange
      Commission and previously distributed to the Banks, will have a Material
      Adverse Effect.

           SECTION 8.  Financial Condition.  For purposes of this Agreement,
subsection 4.6 of the Original Credit Agreement as adopted and incorporated by
reference into this Agreement is hereby amended by deleting such subsection 
in its entirety and substituting in lieu thereof the following:

           "4.6 Financial Condition. The Company has furnished to the Agent and
      each Bank copies of the following:

                (a) The Annual Report of the Company on Form 10-K for the fiscal
           year ended December 31, 1993; and

                (b) the Quarterly Reports of the Company on Form 10-Q for each
           of the fiscal quarters ended March 31, 1994 and June 30, 1994.".

      The financial statements included therein, including the related schedules
      and notes thereto, have been prepared in accordance with GAAP applied
      consistently throughout the

<PAGE>   86
                                                                               6



      periods involved (except as disclosed therein). As of the date of such
      financial statements, neither the Company nor any of its Subsidiaries had
      any known contingent liabilities of any significant amount which in
      accordance with GAAP are required to be referred to in said financial
      statements or in the notes thereto which could reasonably be expected to
      have a Material Adverse Effect. During the period from December 31, 1993
      to and including the date hereof, there has been no sale, transfer or
      other disposition by the Company or any of its consolidated Subsidiaries
      of any asset reflected on the balance sheet referred to above that would
      have been a material part of its business or property and no purchase or
      other acquisition of any business or property (including any capital stock
      of any other Person) material in relation to the consolidated financial
      condition of the Company and its consolidated Subsidiaries at December 31,
      1993.".

           SECTION 9. Changes in Condition. For purposes of this Agreement,
subsection 4.7 of the Original Credit Agreement as adopted and incorporated by
reference into this Agreement is hereby amended by deleting such subsection in
its entirety and substituting in lieu thereof the following:

           "4.7 Changes in Condition. Since December 31, 1993, there has been no
      development or event nor any prospective development or event, which has
      had, or may have, a Material Adverse Effect.".

           SECTION 10. Financial Statements. For purposes of this Agreement,
subsection 6.4(b) of the Original Credit Agreement as adopted and incorporated
by reference into this Agreement is hereby amended adding the following sentence
to the end thereof:

           "At such time that annual statements or quarterly statements, as the
      case may be, are furnished to each Bank pursuant to subsections 6.4(a) and
      6.4(b), respectively, herein, the treasurer of the Company shall deliver
      to the Agent and the CAF Loan Agent a certificate showing the Consolidated
      Capitalization Ratio (the " Consolidated Capitalization Ratio
      Certificate") as of the last day of such fiscal quarter.".

           SECTION 11. Financial Condition Covenants. For purposes of this
Agreement, subsection 7.1(a) of the Original Credit Agreement as adopted and
incorporated by reference into this Agreement is hereby amended by deleting the
phrase "the Closing Date" in the sixth and seventh lines thereof and
substituting in lieu thereof the phrase "September 30, 1993".

           SECTION 12. Commitment Amounts and Percentages; Lending Offices;
Addresses for Notice. For purposes of this

<PAGE>   87
                                                                               7



Agreement, Schedule 1 to the Original Credit Agreement as adopted and
incorporated by reference into this Agreement is hereby amended by deleting
such Schedule in its entirety and    substituting in lieu thereof Schedule 1 to
this Agreement.

           SECTION 13. Applicable Margins. For purposes of this Agreement,
Schedule 2 to the Original Credit Agreement as adopted and incorporated by
reference into this Agreement is hereby amended by deleting such Schedule in its
entirety and substituting in lieu thereof Schedule 2 to this Agreement.

           SECTION 14. Conditions Precedent. The obligations of each Bank to
make the Loans contemplated by subsections 2.1 and 2.2 and of the Issuing Bank
to issue Letters of Credit contemplated by Section 3 of the Original Credit
Agreement as adopted and incorporated by reference into this Agreement shall be
subject to the compliance by the Company with its agreements herein contained
(including its agreements contained in the Original Credit Agreement as adopted
and incorporated by reference into this Agreement) and to the satisfaction on or
before the Closing Date of the following further conditions:

                (a) Loan Documents. The Agent shall have received (i) this
           Agreement, executed and delivered by a duly authorized officer of the
           Company, with a counterpart for each Bank, and (ii) for the account
           of each Bank, a Revolving Credit Note and a Grid CAF Loan Note
           conforming to the requirements hereof and executed by a duly
           authorized officer of the Company.

                (b) Legal Opinions. On the Closing Date as the Agent shall
           request, each Bank shall have received from any general, associate,
           or assistant general counsel to the Company, such opinions as the
           Agent shall have reasonably requested with respect to the
           transactions contemplated by this Agreement.

                (c) Company Officers' Certificate. The representations and
           warranties contained in Section 4 of the Original Credit Agreement as
           adopted and incorporated by reference into, and as amended by, this
           Agreement shall be true and correct on the Closing Date with the same
           force and effect as though made on and as of such date; on and as of
           the Closing Date and after giving effect to this Agreement, no
           Default shall have occurred (except a Default which shall have been
           waived in writing or which shall have been cured) and no Default
           shall exist after giving effect to the Loan to be made; and the Agent
           shall have received a certificate containing a representation

<PAGE>   88
                                                                               8



           to these effects dated the Closing Date and signed by a Responsible
           Officer.

           SECTION 15. Expenses. The Company agrees to pay or reimburse the
Agent for all of its reasonable out-of-pocket costs and expenses incurred in
connection with the development, preparation and execution of, and any
amendment, supplement or modification to, this Agreement and the Notes and any
other documents prepared in connection herewith, and the consummation of the
transactions contemplated hereby and thereby, including, without limitation, the
reasonable fees and disbursements of counsel to the Agent.

           SECTION 16. GOVERNING LAW. THIS AGREEMENT AND THE NOTES AND THE
RIGHTS AND OBLIGATIONS OF THE PARTIES UNDER THIS AGREEMENT AND THE NOTES SHALL
BE GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE
STATE OF NEW YORK.

           SECTION 17. Counterparts. This Agreement may be executed by one or
more of the parties to this Agreement on any number of separate counterparts and
all of said counterparts taken together shall be deemed to constitute one and
the same instrument. A set of the copies of this Agreement signed by all the
parties shall be lodged with the Company and the Agent.

<PAGE>   89
                                                                               9



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


                                         HUMANA INC.


                                         By: /s/ James W. Doucette
                                            ------------------------------------
                                            Title: Vice President-Investments &
                                                   Treasurer


                                         CHEMICAL BANK, as Agent, as CAF
                                         Loan Agent and as a Bank


                                         By: /s/ B. Joseph Lillis
                                            ------------------------------------
                                            Title: Managing Director

                                         CITIBANK, N.A.


                                         By: /s/ Barbara A. Cohen
                                            ------------------------------------
                                            Title: Vice President


                                         NATIONSBANK OF GEORGIA, N.A.


                                         By: /s/ John E. Ball
                                            ------------------------------------
                                            Title: Senior Vice President


                                         NATIONAL CITY BANK, KENTUCKY


                                         By: /s/ Charles P. Denny
                                            ------------------------------------
                                            Title: Senior Vice President


                                         PNC BANK, KENTUCKY, INC.


                                         By: /s/ Michael B. V....
                                            ------------------------------------
                                            Title: Senior Vice President
<PAGE>   90
                                                                              10


                                         WACHOVIA BANK OF GEORGIA, N.A.


                                         By: /s/ J.P. Peyton
                                            ------------------------------------
                                            Title: Senior Vice President



                                         BANK OF AMERICA NATIONAL TRUST
                                          & SAVINGS ASSOCIATION


                                         By: /s/ Wyatt R. Ritchie
                                            ------------------------------------
                                            Title: Vice President


                                         THE BANK OF NOVA SCOTIA


                                         By: /s/ Dana Maloney
                                            ------------------------------------
                                            Title: Relationship Manager


                                         THE CHASE MANHATTAN BANK, N.A.


                                         By: /s/ Michael K. Baxley
                                            ------------------------------------
                                           Title: Vice Prseident


                                         FIRST INTERSTATE BANK OF CALIFORNIA


                                         By: /s/ Daniel H. Hom
                                            ------------------------------------
                                            Title: Vice President
                                         By: /s/ Wendy V.C. Purcell
                                            ------------------------------------
                                            Title: Vice President

                                         LIBERTY NATIONAL BANK AND TRUST
                                           CO. OF KENTUCKY


                                         By: /s/ Earl A. Darsey, Jr.
                                            ------------------------------------
                                            Title: Senior Vice President


                                         THE FIRST NATIONAL BANK OF CHICAGO


                                         By: /s/ Jay G. Sepanski
                                            ------------------------------------
                                            Title: Corporate Banking Officer

<PAGE>   91
                                                                              11



                                            THE SUMITOMO BANK, LTD.,
                                              NEW YORK BRANCH


                                            By: /s/ Yoshinori Kawamura
                                               ---------------------------------
                                               Title: Joint General Manager

                                            THE TORONTO-DOMINION BANK


                                            By: /s/ Warren Finlay
                                               ---------------------------------
                                               Title: Manager Credit


                                            THE SANWA BANK, LIMITED,
                                             ATLANTA AGENCY


                                            By: /s/ Naoki Ueyama
                                               ---------------------------------
                                               Title: Assistant Vice President


                                            BANK OF LOUISVILLE & TRUST COMPANY


                                            By: /s/ Roy L. Johnson Jr.
                                               ---------------------------------
                                               Title: Senior Vice President

<PAGE>   92
                                                                              12




                                            BARNETT BANK OF BROWARD
                                              COUNTY, N.A.


                                            By: /s/ Michael Cooney
                                               ---------------------------------
                                               Title: Vice President


                                            THE BOATMEN'S NATIONAL BANK OF
                                              ST. LOUIS


                                            By: /s/ Douglas W. Thornsberry
                                               ---------------------------------
                                               Title: Corporate Banking Officer


                                            SHAWMUT BANK CONNECTICUT, N.A.


                                            By: /s/ Manfred D. Eigenbrod
                                               ---------------------------------
                                               Title: Managing Director
<PAGE>   93

                                                                     SCHEDULE 1


                                           Commitment Amounts and Percentages;
                                           Lending Offices; Address for Notices


A.  Commitment Amounts and Percentages

<TABLE>
<CAPTION>
                                                            Commitment                        Commitment
Name of Bank                                                  Amount                          Percentage
------------                                                ----------                        ----------  
<S>                                                         <C>                               <C>


Chemical Bank                                               $ 31,000,000                           8.857%


Citibank, N.A.                                              $ 25,000,000                           7.143%


NationsBank of Georgia, N.A.                                $ 25,000,000                           7.143%


National City Bank, Kentucky                                $ 25,000,000                           7.143%


PNC Bank, Kentucky, Inc.                                    $ 25,000,000                           7.143%


Wachovia Bank of Georgia, N.A                               $ 25,000,000                           7.143%


Bank of America National Trust & Savings Association        $ 18,000,000                           5.143%


The First National Bank of Chicago                          $ 18,000,000                           5.143%


The Chase Manhattan Bank, N.A.                              $ 18,000,000                           5.143%


First Interstate Bank of California                         $ 18,000,000                           5.143%


Liberty National Bank and Trust Co. of Kentucky             $ 18,000,000                           5.143%


The Sumitomo Bank, Ltd.,                                    $ 18,000,000                           5.143%
New York Branch

The Toronto-Dominion Bank                                   $ 18,000,000                           5.143%


The Sanwa Bank, Limited, Atlanta Agency                     $ 18,000,000                           5.143%


The Bank of Nova Scotia                                     $ 10,000,000                           2.857%


Bank of Louisville & Trust Company                          $ 10,000,000                           2.857%


Barnett Bank of Broward County, N.A.                        $ 10,000,000                           2.857%


The Boatmen's National Bank of St. Louis                    $ 10,000,000                           2.857%


Shawmut Bank Connecticut, N.A.                              $ 10,000,000                           2.857%
                                                            ------------                           -----
</TABLE>

<PAGE>   94
                                                                               2


<TABLE>
                                                  <S>       <C>                                   <C>
                                                  TOTAL     $350,000,000                          100.00%
                                                            ============                          ====== 
</TABLE>
<PAGE>   95
                                                                               2


B.  LENDING OFFICES; ADDRESSES FOR NOTICES


<TABLE>
<S>                                                   <C>
CHEMICAL BANK

Domestic Lending Office                               Chemical Bank
                                                      270 Park Avenue
                                                      New York, NY  10017

Eurodollar Lending Office                             Chemical Bank
                                                      270 Park Avenue
                                                      New York, NY  10017

Address for Notices                                   Chemical Bank
                                                      270 Park Avenue
                                                      New York, NY  10017
                                                      Attention:  James Ely
                                                      Telecopy:  (212) 270-3279

CITIBANK, N.A.

Domestic Lending Office                               Citibank, N.A.
                                                      399 Park Avenue
                                                      New York, NY  10043

Eurodollar Lending Office                             Citibank, N.A.
                                                      399 Park Avenue
                                                      New York, NY  10043

Address for Notices                                   Citicorp North America, Inc.
                                                      2001 Ross Ave., Suite 1400
                                                      Dallas, TX  75201
                                                      Attn:  J. Lang Aston
                                                      Telecopy:  (214) 953-3888

NATIONSBANK OF GEORGIA, N.A.

Domestic Lending Office                               NationsBank of Georgia, N.A.
                                                      600 Peachtree Street, N.E.
                                                      21st Floor
                                                      Atlanta, GA  30308

Eurodollar Lending Office                             NationsBank of Georgia, N.A.
                                                      600 Peachtree Street, N.E.
                                                      21st Floor
                                                      Atlanta, GA  30308

Address for Notices                                   NationsBank of Georgia, N.A.
                                                      1 NationsBank Plaza
                                                      Corporate Banking Dept.
                                                      Nashville, TN  37239-1697
                                                      Attention:  Ashley M. Crabtree
                                                      Telecopy:  (615) 749-4112
</TABLE>
<PAGE>   96
                                                                               3


<TABLE>
<S>                                                   <C>
NATIONAL CITY BANK, KENTUCKY

Domestic Lending Office                               National City Bank, Kentucky
                                                      101 S. Fifth Street
                                                      Louisville, KY  40202

Eurodollar Lending Office                             National City Bank, Kentucky
                                                      101 S. Fifth Street
                                                      Louisville, KY  40202

Address for Notices                                   National City Bank, Kentucky
                                                      101 S. Fifth Street
                                                      Louisville, KY  40202
                                                      Attention:  Charles P. Denny
                                                      Telecopy:  (502) 581-4424

PNC BANK, KENTUCKY, INC.

Domestic Lending Office                               PNC Bank, Kentucky, Inc.
                                                      500 W. Jefferson Street
                                                      Louisville, KY  40202

Eurodollar Lending Office                             PNC Bank, Kentucky, Inc.
                                                      500 W. Jefferson Street
                                                      Louisville, KY  40202

Address for Notices                                   PNC Bank, Kentucky, Inc.
                                                      500 W. Jefferson Street
                                                      Louisville, KY  40202
                                                      Attention:  Donald Buchanan
                                                      Telecopy:  (502) 581-3355

WACHOVIA BANK OF GEORGIA, N.A.

Domestic Lending Office                               Wachovia Corporate Services, Inc.
                                                      191 Peachtree Street, N.E.
                                                      Atlanta, GA  30303

Eurodollar Lending Office                             Wachovia Corporate Services, Inc.
                                                      191 Peachtree Street, N.E.
                                                      Atlanta, GA  30303

Address for Notices                                   Wachovia Corporate Services, Inc.
                                                      191 Peachtree Street, N.E.
                                                      Atlanta, GA  30303
                                                      Attention:  Solomon Elisha
                                                      Telecopy:  (404) 332-6898
</TABLE>
<PAGE>   97
                                                                               4



BANK OF AMERICA NATIONAL TRUST & SAVINGS ASSOCIATION

Domestic Lending Office                   Bank of America
                                          1850 Gateway Blvd., 4th Floor
                                          Concord, CA  94520

Eurodollar Lending Office                 Bank of America
                                          1850 Gateway Blvd., 4th Floor
                                          Concord, CA  94520

Address for Notices                       Bank of America
                                          555 S. Flower Street, 11th Floor
                                          Mail Code 5618
                                          Los Angeles, CA  90071
                                          Attention:  Wyatt Ritchie
                                          Telecopy:  (213) 228-9734
THE FIRST NATIONAL BANK OF CHICAGO

Domestic Lending Office
                                          The First National Bank of Chicago
                                          1 First National Plaza
                                          Chicago, IL  60670
Eurodollar Lending Office
                                          The First National Bank of Chicago
                                          1 First National Plaza
                                          Chicago, IL  60670

                                          The First National Bank of Chicago
Address of Notices                        1 First National Plaza
                                          Chicago, IL  60670
                                          Attention:  Jennifer Childe
                                          Telecopy : (312) 732-2016

<PAGE>   98
                                                                               5


THE BANK OF NOVA SCOTIA

Domestic Lending Office                   The Bank of Nova Scotia,
                                            Atlanta Agency
                                          600 Peachtree Street, N.E.
                                          Suite 2700
                                          Atlanta, GA  30308

Eurodollar Lending Office                 The Bank of Nova Scotia,
                                            Atlanta Agency
                                          600 Peachtree Street, N.E.
                                          Suite 2700
                                          Atlanta, GA  30308

Address for Notices                       The Bank of Nova Scotia
                                            Atlanta Agency
                                          600 Peachtree Street, N.E.
                                          Suite 2700
                                          Atlanta, GA  30308
                                          Attention:  Greg Hurst
                                          Telecopy:  (312) 201-4108


THE CHASE MANHATTAN BANK, N.A.

Domestic Lending Office                   The Chase Manhattan Bank, N.A.
                                          1 Chase Manhattan Plaza, 5th Floor
                                          New York, NY  10081

Eurodollar Lending Office                 The Chase Manhattan Bank, N.A.
                                          1 Chase Manhattan Plaza, 5th Floor
                                          New York, NY  10081

Address for Notices                       The Chase Manhattan Bank, N.A.
                                          1 Chase Manhattan Plaza, 5th Floor
                                          New York, NY  10081
                                          Attention:  Michael Bayley
                                          Telecopy:  (212) 552-1457

FIRST INTERSTATE BANK OF CALIFORNIA

Domestic Lending Office                   First Interstate Bank of California
                                          Commercial Loan Service Center, B10-6
                                          1055 Wilshire Blvd.
                                          Los Angeles, CA  90017

Eurodollar Lending Office                 First Interstate Bank of California
                                          Commercial Loan Service Center, B10-6
                                          1055 Wilshire Blvd.
                                          Los Angeles, CA  90017

<PAGE>   99
                                                                               6


Address for Notices                       First Interstate Bank of California
                                          707 Wilshire Blvd., W16-12
                                          Los Angeles, CA  90017
                                          Attention:  Bruce P. McDonald
                                          Telecopy:  (213) 614-2569

LIBERTY NATIONAL BANK AND TRUST CO. OF KENTUCKY

Domestic Lending Office                   Liberty National Bank and Trust
                                            Co. of Kentucky
                                          416 W. Jefferson Street
                                          Louisville, KY  40202

Eurodollar Lending Office                 Liberty National Bank and Trust
                                            Co. of Kentucky
                                          416 W. Jefferson Street
                                          Louisville, KY  40202

Address for Notices                       Liberty National Bank and Trust
                                            Co. of Kentucky
                                          416 W. Jefferson Street
                                          Louisville, KY  40202
                                          Attention:  Earl Dorsey, Jr.
                                          Telecopy:  (502) 566-2367

THE SUMITOMO BANK, LTD.,
NEW YORK BRANCH

Domestic Lending Office                   The Sumitomo Bank, Ltd.,
                                          New York Branch
                                          One World Trade Center, Suite 9651
                                          New York, NY  10048

Eurodollar Lending Office                 The Sumitomo Bank, Ltd.,
                                          New York Branch
                                          One World Trade Center, Suite 9651
                                          New York, NY  10048

Address for Notices                       The Sumitomo Bank, Ltd.,
                                          New York Branch
                                          One World Trade Center, Suite 9651
                                          New York, NY  10048
                                          Attention:  Jeff Toner
                                          Telecopy: (212) 524-0612

<PAGE>   100
                                                                               7



THE TORONTO-DOMINION BANK

Domestic Lending Office                   The Toronto-Dominion Bank
                                          909 Fanin Street, Suite 1700
                                          Houston, Texas  77010

Eurodollar Lending Office                 The Toronto-Dominion Bank
                                          909 Fanin Street, Suite 1700
                                          Houston, Texas  77010

Address for Notices                       The Toronto-Dominion Bank
                                          31 West 52nd Street
                                          New York, New York  10019
                                          Attention:  Robert F. Maloney
                                          Telecopy:   (212) 262-1929

THE SANWA BANK, LIMITED, ATLANTA AGENCY
Domestic Lending Office                   The Sanwa Bank, Limited,
                                            Atlanta Agency
                                          133 Peachtree Street, Suite 4750
                                          Atlanta, GA  30303

Eurodollar Lending Office                 The Sanwa Bank, Limited,
                                            Atlanta Agency
                                          133 Peachtree Street, Suite 4750
                                          Atlanta, GA  30303

Address for Notices                       The Sanwa Bank, Limited,
                                            Atlanta Agency
                                          133 Peachtree Street, Suite 4750
                                          Atlanta, GA  30303
                                          Attention:  Peter J. Pawlak
                                          Telecopy:  (404) 589-1629

<PAGE>   101
                                                                               8



BANK OF LOUISVILLE & TRUST COMPANY

Domestic Lending Office                   Bank of Louisville & Trust Company
                                          500 West Broadway
                                          Louisville, KY  40202

Eurodollar Lending Office                 Bank of Louisville & Trust Company
                                          500 West Broadway
                                          Louisville, KY  40202

Address for Notices                       Bank of Louisville & Trust Company
                                          500 West Broadway
                                          Louisville, KY  40202
                                          Attention:  Roy L. Johnson, Jr.
                                          Telecopy:  (502) 566-2367
BARNETT BANK OF BROWARD COUNTY, N.A.

Domestic Lending Office                   Barnett Bank of Broward County, N.A.
                                          One East Broward Blvd., 2nd Floor
                                          Ft. Lauderdale, FL  33301

Eurodollar Lending Office                 Barnett Bank of Broward County, N.A.
                                          One East Broward Blvd., 2nd Floor
                                          Ft. Lauderdale, FL  33301

Address for Notices                       Barnett Bank
                                          50 North Laura Street, 17th Floor
                                          Jacksonville, FL  32202
                                          Attention:  Larry Katz
                                          Telecopy:  (904) 791-7023

<PAGE>   102
                                                                               9



THE BOATMEN'S NATIONAL BANK OF ST. LOUIS

Domestic Lending Office                   The Boatmen's National Bank
                                            of St. Louis
                                          800 Market Street
                                          P.O. Box 236
                                          St. Louis, MO  63166-0236

Eurodollar Lending Office                 The Boatmen's National Bank
                                            of St. Louis
                                          800 Market Street
                                          P.O. Box 236
                                          St. Louis, MO  63166-0236

Address for Notices                       The Boatmen's National Bank
                                            of St. Louis
                                          800 Market Street
                                          P.O. Box 236
                                          St. Louis, MO  63166-0236
                                          Attention:  Doug Thornsberry
                                          Telecopy:  (314) 466-6499
SHAWMUT BANK CONNECTICUT, N.A.

Domestic Lending Office                   Shawmut Bank Connecticut, N.A.
                                          777 Main Street
                                          MSN 397
                                          Hartford, CT  06115

Eurodollar Lending Office                 Shawmut Bank Connecticut, N.A.
                                          777 Main Street
                                          MSN 397
                                          Hartford, CT  06115

Address for Notices                       Shawmut Bank Connecticut, N.A.
                                          777 Main Street
                                          MSN 397
                                          Hartford, CT  06115
                                          Attention:  Manfred Eigenbrod
                                          Telecopy:  (203) 986-5367

<PAGE>   103

                                                                      SCHEDULE 2

                               Applicable Margins


                             REVOLVING CREDIT LOANS

<TABLE>
<CAPTION>
Consolidated Capitalization           Alternate Base
          Ratio                         Rate Loans           Eurodollar Loans
---------------------------           --------------         ----------------
<S>                                   <C>                    <C>
less than .20
                                          .000%                   .2500%

at least .20 but
less than .30                             .000%                   .3250%

at least .30 but
less than .40                             .000%                   .3750%

at least .40
                                          .000%                   .4375%
</TABLE>
<PAGE>   104
                 AMENDMENT, dated as of August 1, 1995 (this "August 1995
Amendment"), to the Agreement and Amendment, dated as of October 27, 1994 (as
further amended, supplemented or otherwise modified from time to time, the
"Agreement and Amendment"), among HUMANA INC., a Delaware corporation (the
"Company"), the several banks and other financial institutions from time to
time parties hereto (the "Banks") and CHEMICAL BANK, a New York banking
corporation, as agent for the Banks thereunder (in such capacity, the "Agent")
and as CAF Loan agent (in such capacity, the "CAF Loan Agent").


                             W I T N E S S E T H :


                 WHEREAS, pursuant to the Agreement and Amendment, the Banks
have agreed to make, and have made, certain loans and other extensions of
credit to the Company;

                 WHEREAS, the Company has requested that the Agent, the CAF
Loan Agent and the Banks amend the Agreement and Amendment to permit proceeds
of Loans to be used by the Company to purchase margin stock (as defined in
Regulation U); and

                 WHEREAS, the Agent, the CAF Loan Agent and the Banks are
willing to so amend the Agreement and Amendment, but only upon the terms and
subject to the conditions set forth below;

                 NOW THEREFORE, in consideration of the premises and mutual
agreements herein contained and for other good and valuable consideration, the
receipt and sufficiency of which is hereby acknowledged by each of the parties
hereto, the parties hereto hereby agree as follows:

                 I.  Amendments to Agreement and Amendment.

                 1.  Definitions.  (a)  Unless otherwise defined in this
Section I, terms which are defined in the Agreement and Amendment and used
herein are so used as so defined.  Unless otherwise indicated, all Section,
subsection and Schedule references are to the Agreement and Amendment.

                 (b)  Subsection 1.1 of the Original Credit Agreement, as
adopted and incorporated by reference into the Agreement and Amendment pursuant
to Section 1 thereof, is hereby amended by adding thereto, in the appropriate
alphabetical order, the following new defined terms:

                 "`Margin Stock':  as defined in Regulation U."
<PAGE>   105
                                                                               2



                 "`Margin Stock Collateral':  all Margin Stock (other than
         Portfolio Margin Stock) of the Company and its Subsidiaries by which
         the Loans are deemed "indirectly secured" within the meaning of
         Regulation U."

                 "`Other Collateral':  all assets of the Company and its
         Subsidiaries (other than Margin Stock) by which the Loans are deemed
         "indirectly secured" within the meaning of Regulation U."

                 "`Portfolio Margin Stock':  Margin Stock held by Insurance
         Subsidiaries or HMO Subsidiaries as portfolio investments."

                 "`Regulation X':  Regulation X of the Board of Governors of
         the Federal Reserve System."

                 2.  Amendment to Subsection 2.16 of the Agreement and
Amendment (Application of Proceeds of Loans).  Subsection 2.16 of the Original
Credit Agreement, as adopted and incorporated by reference into the Agreement
and Amendment pursuant to Section 1 thereof, is hereby amended by deleting such
subsection in its entirety and substituting in lieu thereof the following:

                     "2.16 Application of Proceeds of Loans.  Subject to
         the provisions of the following sentence, the Company may use the
         proceeds of the Loans for any lawful corporate purpose.  The Company
         will not, directly or indirectly, apply any part of the proceeds of any
         such Loan for the purpose of "purchasing" or "carrying" any Margin
         Stock within the respective meanings of each of the quoted terms under
         Regulation U, or to refund any indebtedness incurred for such purpose,
         provided that the Company may use the proceeds of Loans for such
         purposes, if (i) such usage does not violate Regulation U as now and
         from time to time hereafter in effect and (ii) the Board of Directors
         of the issuer of the Margin Stock being purchased has expressly
         approved such transaction and expressly recommended such transaction to
         its shareholders.".

                 3.  Addition of Subsection 2.18. The Original Credit
Agreement, as adopted and incorporated by reference into the Agreement and
Amendment pursuant to Section 1 thereof, is hereby amended by adding thereto
the following new subsection 2.18:

                     "2.18  Regulation U.  (a)  If at any time the Company shall
         use the proceeds of any Loans for the purpose of "purchasing" or
         "carrying" any Margin Stock within the respective meanings of each of
         the quoted terms under Regulation U, or to refund any indebtedness
         incurred for such purpose, the Company shall give notice thereof to
         the Agent and the Banks, and thereafter the Loans made by each Bank
         shall at all times be treated for purposes of Regulation U, as two
         separate extensions of credit (the "A
<PAGE>   106
                                                                               3



         Credit" and the "B Credit" of such Bank and, collectively, the "A
         Credits" and the "B Credits"), as follows:

                           (i)  the aggregate amount of the A Credit of such
                 Bank shall be an amount equal to such Bank's pro rata share
                 (based on the amount of its Commitment Percentage) of the
                 maximum loan value (as determined in accordance with
                 Regulation U), of all Margin Stock Collateral; and

                          (ii)  the aggregate amount of the B Credit of such
                 Bank shall be an amount equal to such Bank's pro rata share
                 (based on the amount of its Commitment Percentage) of all
                 Loans outstanding hereunder minus such Bank's A Credit.

         In the event that any Margin Stock Collateral is acquired or sold, the
         amount of the A Credit of such Bank shall be adjusted (if necessary),
         to the extent necessary by prepayment, to an amount equal to such
         Bank's pro rata share (based on the amount of its Commitment
         Percentage) of the maximum loan value (determined in accordance with
         Regulation U) as of the date of such acquisition or sale) of the
         Margin Stock Collateral immediately after giving effect to such
         acquisition or sale.  Nothing contained in this subsection 2.18 shall
         be deemed to permit any sale of Margin Stock Collateral in violation
         of any other provisions of this Agreement.

                 (b)  Each Bank will maintain its records to identify the A
         Credit of such Bank and the B Credit of such Bank, and, solely for the
         purposes of complying with Regulation U, the A and B Credits shall be
         treated as separate extensions of credit.  Each Bank hereby represents
         and warrants that the loan value of the Other Collateral is sufficient
         for such Bank to lend its pro rata share of the B Credit.

                 (c)  The benefits of the indirect security in Margin Stock
         Collateral created by any provisions of this Agreement, shall be
         allocated first to the benefit and security of the payment of the
         principal of and interest on the A Credits of the Banks and of all
         other amounts payable by the Company under this Agreement in
         connection with the A Credits (collectively, the "A Credit Amounts")
         and second, only after the payment in full of the A Credit Amounts, to
         the benefit and security of the payment of the principal of and
         interest on the B Credits of the Banks and of all other amounts
         payable by the Company under this Agreement in connection with the B
         Credits (collectively, the " B Credit Amounts"). The benefits of the
         indirect security in Other Collateral created by any provisions of
         this Agreement, shall be allocated first to the benefit and security
         of the payment of the B Credit Amounts and second, only after the
<PAGE>   107
                                                                               4



         payment in full of the B Credit Amounts, to the benefit and security
         of the payment of the A Credit Amounts.

                 (d)  The Company shall furnish to each Bank at the time of
         each acquisition and sale of Margin Stock Collateral such information
         and documents as the Agent or such Bank may require to determine the A
         and B Credits, and at any time and from time to time, such other
         information and documents as the Agent or such Bank may reasonably
         require to determine compliance with Regulation U or Regulation G, as
         applicable.

                 (e)  Each Bank shall be responsible for its own compliance
         with and administration of the provisions of this subsection 2.18 and
         Regulation U, and the Agent shall have no responsibility for any
         determinations or allocations made or to be made by any Bank as
         required by such provisions."


                 4.  Amendment to Subsection 4.15 of the Agreement and
Amendment (Federal Regulations).  Subsection 4.15 of the Original Credit
Agreement, as adopted and incorporated by reference into the Agreement and
Amendment pursuant to Section 1 thereof, is hereby amended by deleting such
subsection in its entirety and substituting in lieu thereof the following:

                 "4.15  Federal Regulations.  No part of the proceeds of any
         Loans will be used in any transaction or for any purpose which
         violates the provisions of Regulation U as now and from time to time
         hereafter in effect.  If requested by any Bank or the Agent, the
         Company will furnish to the Agent and each Bank a statement to the
         foregoing effect in conformity with the requirements of Form FR U-1
         referred to in said Regulation U.".

                 4.  Amendment to Subsection 4.20 of the Agreement and
Amendment (Purpose of Loans).  Subsection 4.20 of the Original Credit
Agreement, as adopted and incorporated by reference into the Agreement and
Amendment pursuant to Section 1 thereof, is hereby amended by deleting such
subsection in its entirety and substituting in lieu thereof the following:

                 "4.20  Purpose of Loans.  The proceeds of the Loans shall be
         used for general corporate purposes provided that no part of the
         proceeds of any Loans will be used in any transaction or for any
         purpose which violates the provisions of Regulation U as now and from
         time to time hereafter in effect.".

                 5.  Amendment to Subsection 5.2 of the Agreement and Amendment
(Conditions to Each Loan).  Subsection 5.2 of the Original Credit Agreement, as
adopted and incorporated by reference into the Agreement and Amendment pursuant
to Section 1
<PAGE>   108
                                                                               5



thereof, is hereby amended by adding the following paragraphs (d) and (e) to
the end thereof:

                 "(d)  Form FR U-1.  In the case of any Loan the proceeds of
         which will be used, in whole or in part, to purchase or carry Margin
         Stock, the Company shall have executed and delivered to the Agent and
         each Bank a statement on Form FR U-1 referred to in Regulation U,
         showing compliance with Regulation U after giving effect to such Loan.

                 (e)  Legal Opinion.  In the case of any Loan the proceeds of
         which will be used, in whole or in part, to purchase or carry Margin
         Stock, the Agent shall have received, with a copy for each Bank, a
         written legal opinion of Fried, Frank, Harris, Shriver & Jacobson,
         counsel to the Company, to the effect that such Loan and the Company's
         use of the proceeds thereof does not violate Regulation U or
         Regulation X.".

                 II.  Miscellaneous Provisions.

                 1.  Conditions Precedent.  This August 1995 Amendment shall
become effective as of the date (the "August 1995 Amendment Effective Date")
that each of the conditions precedent set forth below shall have been fulfilled
to the satisfaction of the Agent and the Majority Banks:

                 (a)  August 1995 Amendment.  The Agent shall have received
         counterparts of this August 1995 Amendment, duly executed by the
         Company, the Agent and the Majority Banks.

                 (b)  No Default or Event of Default.  On and as of the August
         1995 Amendment Effective Date and after giving effect to this August
         1995 Amendment, no Default or Event of Default shall have occurred and
         be continuing.

                 (c)  Representations and Warranties.  The representations and
         warranties made by the Company in the Agreement and Amendment after
         giving effect to this August 1995 Amendment and the transactions
         contemplated hereby shall be true and correct on and as of the August
         1995 Amendment Effective Date as if made on such date, except where
         such representations and warranties relate to an earlier date in which
         case such representations and warranties shall be true and correct as
         of such earlier date; provided that all references to the Agreement
         and Amendment in such representations and warranties shall be and are
         deemed to mean this August 1995 Amendment as well as the Agreement and
         Amendment as amended hereby.

                 (d)  Certificate.  The Agent shall have received a Certificate
         of a Responsible Officer of the Company, dated
<PAGE>   109
                                                                               6



         the August 1995 Amendment Effective Date, certifying the matters
         referred to in paragraphs (b) and (c) above.

                 (e)  Other.  The Agent shall have received copies of opinions,
         certificates, or agreements reasonably requested by the Agent or the
         Majority Banks.

                 2.  Expenses.  The Company agrees to pay or reimburse the
Agent for all of its reasonable out-of-pocket costs and expenses incurred in
connection with the development, preparation and execution of this August 1995
Amendment and any other documents prepared in connection herewith, including,
without limitation, the reasonable fees and disbursements of counsel to the
Agent.

                 3.  Continuing Effect; No Other Amendments.  Except as
expressly amended hereby, all of the terms and provisions of the Agreement and
Amendment are and shall remain in full force and effect.

                 5.  GOVERNING LAW.  THIS AUGUST 1995 AMENDMENT AND THE RIGHTS
AND OBLIGATIONS OF THE PARTIES UNDER THIS AUGUST 1995 AMENDMENT SHALL BE
GOVERNED BY, AND CONSTRUED AND INTERPRETED IN ACCORDANCE WITH, THE LAW OF THE
STATE OF NEW YORK.

                 5.  Counterparts.  This August 1995 Amendment may be executed
by one or more of the parties to this August 1995 Amendment on any number of
separate counterparts and all of said counterparts taken together shall be
deemed to constitute one and the same instrument.
<PAGE>   110
                                                                               7



                 IN WITNESS WHEREOF, the parties hereto have caused this August
1995 Amendment to be duly executed and delivered by their proper and duly
authorized officers as of the day and year first above written.


                                       HUMANA INC.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________

                                       CHEMICAL BANK, as Agent, as CAF
                                       Loan Agent and as a Bank


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________

                                       CITIBANK, N.A.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title: ______________________________


                                       NATIONSBANK OF GEORGIA, N.A.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title: ______________________________


                                       NATIONAL CITY BANK, KENTUCKY


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________



<PAGE>   111
                                                                               8



                                       PNC BANK, KENTUCKY, INC.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       WACHOVIA BANK OF GEORGIA, N.A.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________



                                       BANK OF AMERICA NATIONAL TRUST
                                         & SAVINGS ASSOCIATION


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       THE BANK OF NOVA SCOTIA


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       THE CHASE MANHATTAN BANK, N.A.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


<PAGE>   112
                                                                               9



                                       FIRST INTERSTATE BANK OF CALIFORNIA


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________

                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________

                                       LIBERTY NATIONAL BANK AND TRUST
                                         CO. OF KENTUCKY


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       THE FIRST NATIONAL BANK OF CHICAGO


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________



                                       THE SUMITOMO BANK, LTD.,
                                         NEW YORK BRANCH


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________

                                       THE TORONTO-DOMINION BANK


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


<PAGE>   113
                                                                              10



                                       THE SANWA BANK, LIMITED,
                                         ATLANTA AGENCY


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       BANK OF LOUISVILLE & TRUST COMPANY


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       BARNETT BANK OF BROWARD
                                         COUNTY, N.A.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       THE BOATMEN'S NATIONAL BANK OF
                                         ST. LOUIS


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________


                                       SHAWMUT BANK CONNECTICUT, N.A.


                                       By:_____________________________________
                                          Name:________________________________
                                          Title:_______________________________



<PAGE>   1
                       STOCK OPTION AND TENDER AGREEMENT

          Stock Option and Tender Agreement (this "Agreement"), dated as of
August 9, 1995, between Humana Inc., a Delaware corporation ("Purchaser"),
Lincoln National Corporation, an Indiana corporation ("Lincoln"), and American
States Insurance Company, an Indiana corporation ("Stockholder").

                                   Background

          A.    Stockholder is a wholly owned subsidiary of Lincoln. Stockholder
owns (both beneficially and of record) 4,986,507 shares of common stock, par
value $.01 per share ("Common Stock"), of EMPHESYS Financial Group, Inc., a
Delaware corporation (the "Company").

          B.    Concurrently herewith, Purchaser, HEW, Inc., a Delaware
corporation and a wholly owned subsidiary of Purchaser ("Sub"), and the Company
are entering into an agreement and plan of merger, dated as of August 9, 1995
(the "Merger Agreement"), pursuant to which Sub has agreed to make a tender
offer (the "Offer") for all outstanding shares of Common Stock at $37.50 per
share (the "Offer Price"), net to the seller in cash, to be followed by a merger
of Sub with and into the Company.

          C.    As a condition to the willingness of Purchaser to enter into the
Merger Agreement, Purchaser has required that Stockholder agree, and in order to
induce Purchaser to enter into the Merger Agreement, Stockholder has agreed,
among other things, (i) to tender all of the shares of Common Stock now owned or
which may hereafter be acquired by Stockholder (the "Shares"), (ii) to grant
Purchaser the option to purchase the Shares, (iii) to appoint Purchaser as
Stockholder's proxy to vote the Shares, and (iv) with respect to certain
questions put to stockholders of the Company for a vote, to vote the Shares, in
each case, in accordance with the terms and conditions of this Agreement.

<PAGE>   2

          In consideration of the mutual covenants and agreements contained
herein and other good and valuable consideration, the adequacy of which is
hereby acknowledged, and intending to be legally bound hereby, the parties
hereto agree as follows:

                                   Agreement

          1.    Tender of Shares.  Stockholder agrees to tender and sell to
Purchaser pursuant to the Offer all of the Shares.  Stockholder agrees that
Stockholder shall deliver to the depositary for the Offer, no later than the
first Business Day (as defined below) following the commencement of the Offer,
either a letter of transmittal together with the certificates for the Shares, if
available, or a "Notice of Guaranteed Delivery", if the Shares are not
available.  Stockholder agrees not to withdraw any Shares tendered into the
Offer.

          2.    Stock Option.

                2.1.    Grant of Stock Option.  Stockholder hereby grants to
Purchaser an irrevocable option (the "Stock Option") to purchase all of the
Shares at such time as Purchaser may exercise the Stock Option at a purchase
price equal to the Offer Price.

                2.2.    Exercise of Stock Option.  (a)  The Stock Option may be
exercised by Purchaser, in whole or in part, at any time, or from time to time,
prior to the earlier of (i) the date upon which the Effective Time (as defined
in the Merger Agreement) occurs and (ii) the date forty-five days after the date
of termination of the Merger Agreement.

                        (b)    In the event Purchaser wishes to exercise the
Stock Option, Purchaser shall send a written notice (an "Exercise Notice") to
Stockholder specifying the total number of Shares Purchaser wishes to purchase
from the Stockholder and a date, which shall be a Business Day, and a place,
which shall be in the City of New York, for the closing of such purchase (a
"Stock Option Closing").

                        (c)    Upon receipt of an Exercise Notice, Stockholder
shall be obligated to deliver to Purchaser a certificate or certificates
representing the number of Shares specified in such Exercise Notice, in
accordance with the terms of this Agreement, on the later of the date specified
in such Exercise Notice and the first Business Day on which the conditions





                                      -2-


<PAGE>   3

specified in Section 2.3 shall be satisfied.  The date specified in such
Exercise Notice may be as early as one day after the date of such Exercise
Notice.

                        (d)    If on the date an Exercise Notice is delivered to
Stockholder, Purchaser is prohibited by the Hart-Scott-Rodino Antitrust
Improvements Act of 1976, as amended, and the rules and regulations thereunder
(the "HSR Act") or by Applicable Insurance Regulations from purchasing the
number of Shares specified in the Exercise Notice, then Purchaser shall exercise
a Stock Option to purchase such lesser amount that represents the maximum number
of Shares which it is then permitted to purchase by the HSR Act or by Applicable
Insurance Regulations, as the case may be.

                        (e)    For the purposes of this Agreement, the term
"Business Day" shall mean a day on which banks are not required or authorized to
be closed in the City of New York and the term "Applicable Insurance
Regulations" shall mean all laws or regulations applicable to insurance
companies or health maintenance organizations (including, without limitation,
laws or regulations administered by the Office of the Commissioner of Insurance
of the State of Wisconsin (the "OCI") or the Department of Corporations of the
State of California (the "DOC")) under which any filing or registration with or
authorization, consent or approval of, any governmental entity is required by or
with respect to Purchaser, Stockholder or the Company or any of their respective
subsidiaries in connection with the execution and delivery of this Agreement or
the consummation of the transactions contemplated hereby.

                2.3.    Conditions to Delivery of the Shares.  The obligation of
Stockholder to deliver the Shares upon any exercise of a Stock Option is subject
to the following conditions:

                        (a)    All waiting periods under the HSR Act applicable
to such exercise of the Stock Option and the delivery of the Shares subject to
such Stock Option in respect of such exercise shall have expired or been
terminated;





                                      -3-
<PAGE>   4
                        (b)    All regulatory or supervisory agency approvals
required by any applicable law, rule or regulation for a Stock Option Closing
(including Applicable Insurance Regulations) shall have been obtained and each
approval shall have become final; and

                        (c)    There shall be no preliminary or permanent
injunction or other order by any court of competent jurisdiction restricting,
preventing or prohibiting such exercise of such Stock Option or the delivery of
the Shares subject to such Stock Option in respect of such exercise.

                2.4.    Stock Option Closings.  At each Stock Option Closing,
Stockholder will deliver to Purchaser a certificate or certificates evidencing
the number of Shares specified in the Exercise Notice delivered to Stockholder
in respect of such Stock Option Closing, each such certificate being duly
endorsed in blank and accompanied by such stock powers and such other documents
as may be necessary in Purchaser's judgment to transfer record ownership of the
Shares into Purchaser's name on the stock transfer books of the Company and
Purchaser will purchase the delivered Shares at the Offer Price.  All payments
made by Purchaser to Stockholder pursuant to this Section 2.4 shall be made by
wire transfer of immediately available funds or by certified bank check payable
to Stockholder, in an amount equal to the product of (a) the Offer Price and (b)
the number of Shares specified in the Exercise Notice delivered in respect of
such Stock Option Closing.

                2.5.    Adjustments Upon Changes in Capitalization.  In the
event of any change in the number of issued and outstanding shares of Common
Stock by reason of any stock dividend, subdivision, merger, recapitalization,
combination, conversion or exchange of shares, or any other change in the
corporate or capital structure of the Company (including, without limitation,
the declaration or payment of an extraordinary dividend of cash or securities)
which would have the effect of diluting or otherwise adversely affecting
Purchaser's rights and privileges under this Agreement, the number and kind of
the Shares and the consideration payable in respect of the Shares shall be
appropriately and equitably adjusted to restore to Purchaser its rights and
privileges under this Agreement.  Without limiting the scope of the





                                      -4-
<PAGE>   5
foregoing, in any such event, at the option of Purchaser, the Stock Option
shall represent the right to purchase, in addition to the number and kind of
Shares which Purchaser would be entitled to purchase pursuant to the
immediately preceding sentence, whatever securities, cash or other property the
Shares subject to the Stock Option shall have been converted into or otherwise
exchanged for, together with any securities, cash or other property which shall
have been distributed with respect to such Shares.

                2.6.    Purchaser Sale of Shares.  (a) If subsequent to the
exercise of the Stock Option and prior to the Termination Date (as defined in
Section 8), Purchaser (or any affiliate of Purchaser to which the Shares have
been transferred) sells or otherwise in any way disposes of, in whole or in
part, the Shares to a third party (other than an affiliate of Purchaser), in a
transaction in which Purchaser (or its affiliated transferee) receives cash
and/or securities having a value in excess (such excess is hereinafter the
"Excess") of the Offer Price, Purchaser will, promptly after the completion or
sale or other disposition, pay or deliver to Stockholder 50% of the Excess for
each Share sold or otherwise disposed of.  The Excess shall be paid, to the
extent Purchaser (or its transferee) received cash, in cash and, to the extent
that Buyer (or its transferee) received securities or other consideration, in
such securities, or other consideration.

                        (b)    The value of such securities or other
consideration shall be determined as of the date of the receipt thereof. If
Purchaser and Stockholder cannot within 15 days of receipt of such securities or
other consideration agree as to its value, the value of such consideration shall
be determined by agreement between two nationally recognized investment banking
firms, one of which will be designated by Purchaser and the other of which will
be designated by Stockholder.  Each of Purchaser and Stockholder shall be
responsible for the costs and expenses of the investment banking firm it
designates.  If such investment banking firms are unable to agree as to the
value of such securities or other consideration within 30 days after receipt
thereof by Purchaser, such value shall be established by a third investment
banking firm selected by the initial investment banking firms.  All costs and
expenses of the third investment banking firm shall be shared equally by
Purchaser and Stockholder.





                                      -5-
<PAGE>   6
          3.    Representations and Warranties of Lincoln and Stockholder.  Each
of Lincoln and Stockholder hereby represents and warrants to Purchaser as
follows:

                3.1.    Title to the Shares.  Stockholder is the owner (both
beneficially and of record) of the Shares (which term as of the date hereof is
comprised of 4,986,507 shares of Common Stock) and Stockholder does not have any
rights of any nature to acquire any additional shares of Common Stock.
Stockholder owns all of the Shares free and clear of all security interests,
liens, claims, pledges, options, rights of first refusal, agreements,
limitations on Stockholder's voting rights, charges and other encumbrances of
any nature whatsoever, and, except as provided in this Agreement, Stockholder
has not appointed or granted any proxy, which appointment or grant is still
effective, with respect to any of the Shares. Upon the exercise of the Stock
Option and the delivery to Purchaser by Stockholder of a certificate or
certificates evidencing the Shares, Purchaser will receive good, valid and
marketable title to the Shares, free and clear of all security interests, liens,
claims, pledges, options, rights of first refusal, agreements, limitations on
Purchaser's voting rights, charges and other encumbrances of any nature
whatsoever.

                3.2.    Authority Relative to This Agreement.  Each of Lincoln
and Stockholder has all necessary power and authority to execute and deliver
this Agreement, to perform its obligations hereunder and to consummate the
transactions contemplated hereby.  The execution and delivery of this Agreement
by each of Lincoln and Stockholder and the consummation by each of Lincoln and
Stockholder of the transactions contemplated hereby have been duly and validly
authorized by all necessary action on the part of each of Lincoln and
Stockholder, respectively.  This Agreement has been duly and validly executed
and delivered by each of Lincoln and Stockholder and, assuming the due
authorization, execution and delivery by Purchaser, constitutes a legal, valid
and binding obligation of each of Lincoln and Stockholder, enforceable against
each of Lincoln and Stockholder in accordance with its terms.

                3.3.    No Conflict.  The execution and delivery of this
Agreement by each of Lincoln and Stockholder does not, and the performance of
this Agreement by each of





                                      -6-
<PAGE>   7

Lincoln and Stockholder will not, (a) require any consent, approval,
authorization or permit of, or filing with or notification to, any governmental
or regulatory authority, domestic or foreign, except for (i) requirements of
federal and state securities laws, (ii) requirements arising out of the HSR Act,
and (iii) requirements of Applicable Insurance Regulations, (b) conflict with or
violate the certificate of incorporation or bylaws or equivalent organizational
documents, if any, of Lincoln or Stockholder, (c) conflict with or violate any
law, rule, regulation, order, judgment or decree applicable to Lincoln or
Stockholder or by which any property or asset of Lincoln or Stockholder is bound
or affected, or (d) result in any breach of or constitute a default (or an event
which with notice or lapse of time or both would become a default) under, or
give to others any right of termination, amendment, acceleration or cancellation
of, or result in the creation of a lien or other encumbrance of any nature
whatsoever on any property or asset of Lincoln or Stockholder pursuant to, any
note, bond, mortgage, indenture, contract, agreement, lease, license, permit,
franchise or other instrument or obligation to which Lincoln or Stockholder is a
party or by which Lincoln or Stockholder or any property or asset of Lincoln or
Stockholder is bound or affected, except in each case to the extent any such
breach or default, whether taken singly or in the aggregate, would not have a
material adverse effect on Lincoln or Stockholder or its ability to consummate
the transactions contemplated hereby.

                3.4.    $50 Million Company Promissory Note.  Lincoln is the
Designated Holder of that certain $50,000,000 promissory note due December 31,
1996 (the "Note") issued by the Company.  ("Designated Holder" shall have the
meaning ascribed thereto in the Note.)  Lincoln hereby represents and
acknowledges that Lincoln approves of the transactions contemplated by this
Agreement and the Merger Agreement and that, therefore, such transactions will
not give rise to rights of acceleration under Section 5 of the Note.

                3.5.    Brokers.  No broker, finder or investment banker is
entitled to any brokerage, finder's or other fee or commission in connection
with the transactions contemplated hereby based upon arrangements made by or on
behalf of Lincoln or Stockholder.





                                      -7-
<PAGE>   8

          4.    Representations and Warranties of Purchaser.  Purchaser hereby
represents and warrants to Lincoln and Stockholder as follows:

                4.1.    Authority Relative to This Agreement.  Purchaser has all
necessary power and authority to execute and deliver this Agreement, to perform
its obligations hereunder and to consummate the transactions contemplated
hereby.  The execution and delivery of this Agreement by Purchaser and the
consummation by Purchaser of the transactions contemplated hereby have been duly
and validly authorized by all necessary corporate action on the part of
Purchaser.  This Agreement has been duly and validly executed and delivered by
Purchaser and, assuming the due authorization, execution and delivery by Lincoln
and Stockholder, constitutes a legal, valid and binding obligation of Purchaser,
enforceable against Purchaser in accordance with its terms.

                4.2.    No Conflict.  The execution and delivery of this
Agreement by Purchaser does not, and the performance of this Agreement by
Purchaser will not, (a) require any consent, approval, authorization or permit
of, or filing with or notification to, any governmental or regulatory authority,
domestic or foreign, except for (i) requirements of federal and state securities
laws, (ii) requirements arising out of the HSR Act, and (iii) requirements of
Applicable Insurance Regulations, (b) conflict with or violate the certificate
of incorporation or bylaws or equivalent organizational documents, if any, of
Purchaser, (c) conflict with or violate any law, rule, regulation, order,
judgment or decree applicable to Purchaser or by which any property or asset of
Purchaser is bound or affected, or (d) result in any breach of or constitute a
default (or an event which with notice or lapse of time or both would become a
default) under, or give to others any right of termination, amendment,
acceleration or cancellation of, or result in the creation of a lien or other
encumbrance of any nature whatsoever on any property or asset of Purchaser
pursuant to, any note, bond, mortgage, indenture, contract, agreement, lease,
license, permit, franchise or other instrument or obligation to which Purchaser
is a party or by which Purchaser or any property or asset of Purchaser is bound
or affected, except in each case to the extent any





                                      -8-
<PAGE>   9

such breach or default, whether taken singly or in the aggregate, would not
have a material adverse effect on Purchaser or its ability to consummate the
transactions contemplated hereby.

                4.3.    Brokers.  No broker, finder or investment banker is
entitled to any brokerage, finder's or other fee or commission from Lincoln or
Stockholder in connection with the transactions contemplated hereby based upon
arrangements made by or on behalf of Purchaser.

          5.    Covenants of Lincoln and Stockholder.

                5.1.    No Disposition or Encumbrance of Shares; No Acquisition
of Shares.  (a) Each of Lincoln and Stockholder hereby covenants and agrees
that, except as contemplated by this Agreement, neither Lincoln nor Stockholder
shall, and neither shall offer or agree to, sell, transfer, tender, assign,
hypothecate or otherwise dispose of, or create or permit to exist any security
interest, lien, claim, pledge, option, right of first refusal, agreement,
limitation on Stockholder's voting rights, charge or other encumbrance of any
nature whatsoever with respect to the Shares now owned or that may hereafter be
acquired by Lincoln or Stockholder.

                        (b)    Each of Lincoln and Stockholder hereby covenants
and agrees that it shall not, and shall not offer to agree to, acquire any
additional shares of Common Stock, or options, warrants or other rights to
acquire shares of Common Stock, without the prior written consent of Purchaser.

                5.2.    No Solicitation of Transactions.  (a) Neither Lincoln
nor Stockholder shall, directly or indirectly, through any agent or
representative or otherwise, solicit, initiate or encourage the submission of
any proposal or offer from any individual, corporation, partnership, limited
partnership, syndicate, person (including, without limitation, a "person" as
defined in section 13(d)(3) of the Securities Exchange Act of 1934, as amended),
trust, association or entity or government, political subdivision, agency or
instrumentality of a government (collectively, other than Purchaser and any
affiliate of Purchaser, a "Person") relating to (i) any acquisition or purchase
of all or any of the Shares or (ii) any acquisition or purchase of all or (other
than in the ordinary course of business) any portion of the assets of, or





                                      -9-
<PAGE>   10

any equity interest in, the Company or any of its subsidiaries (each, a
"Subsidiary") or any business combination with the Company or any Subsidiary or
participate in any negotiations regarding, or furnish to any Person any
information with respect to, or otherwise cooperate in any way with, or assist
or participate in or facilitate or encourage, any effort or attempt by any
Person to do or seek any of the foregoing.  Each of Lincoln and Stockholder
hereby represents that neither it nor its agents or representatives is now
engaged in any discussions or negotiations with any Person with respect to any
of the foregoing.

                        (b)    Paragraph (a) of this Section 5.2 shall not
restrict Stockholder or any officer or director of Stockholder or its affiliates
from otherwise exercising the fiduciary duties owed by such officer or director
to the Company; provided, however, that Lincoln and Stockholder shall notify
Purchaser promptly of any such proposal or offer, or any inquiry or contact with
any Person with respect thereto, (but need not disclose the identity of the
Person making such proposal, offer, inquiry or contact and the terms and
conditions of such proposal, offer, inquiry or contact.

                5.3.    Compliance of Stockholder with This Agreement.  Lincoln
covenants and agrees that it shall cause Stockholder to take all actions and
forbear from all actions, in each case, necessary in order that (a) all of
Stockholder's representations and warranties hereunder are true and correct and
(b) Stockholder fulfills all of its obligations hereunder.

          6.    Covenants and Acknowledgment of Purchaser.

                6.1.    No Exercise of Stock Option During Tender Offer.
Purchaser hereby covenants and agrees that, during the pendency of the Offer,
Purchaser shall not exercise the Stock Option.

                6.2.    Purchaser hereby acknowledges and agrees that if the
Offer Price for the Offer is increased, Stockholder shall be entitled to tender
and sell to Purchaser pursuant to the Offer all of the Shares at the increased
Offer Price.





                                      -10-
<PAGE>   11
          7.    Voting Agreement; Proxy of Stockholder.

                7.1.    Voting Agreement.  Each of Lincoln and Stockholder
hereby agrees that, during the time this Agreement is in effect, at any meeting
of the stockholders of the Company, however called, and in any action by written
consent of the stockholders of the Company, Stockholder shall (a) vote all of
the Shares in favor of the Merger, the Merger Agreement (as amended from time to
time) and any of the transactions contemplated by the Merger Agreement; (b) vote
the Shares against any action or agreement that would result in a breach in any
material respect of any covenant, representation or warranty or any other
obligation of the Company under the Merger Agreement; and (c) vote the Shares
against any action or agreement that would impede, interfere with or attempt to
discourage the Offer or the Merger, including, but not limited to:  (i) any
extraordinary corporate transaction (other than the Merger), such as a merger,
reorganization, recapitalization or liquidation involving the Company or any
Subsidiary; (ii) a sale or transfer of a material amount of assets of the
Company or any Subsidiary; (iii) any change in the management or board of
directors of the Company, except as otherwise agreed to in writing by Purchaser;
(iv) any material change in the present capitalization or dividend policy of the
Company; or (v) any other material change in the Company's corporate structure
or business.

                7.2.    Irrevocable Proxy.  Each of Lincoln and Stockholder
agrees that, in the event Stockholder shall fail to comply with the provisions
of Section 7.1 hereof as determined by Purchaser in its sole discretion, such
failure shall result, without any further action by Stockholder, in the
irrevocable appointment of Purchaser as the attorney and proxy of Stockholder
pursuant to the provisions of section 212 of the DGCL, with full power of
substitution, to vote, and otherwise act (by written consent or otherwise) with
respect to all shares of Common Stock, including the Shares, that Stockholder is
entitled to vote at any meeting of stockholders of the Company (whether annual
or special and whether or not an adjourned or postponed meeting) or consent in
lieu of any such meeting or otherwise, on the matters and in the manner
specified in Section 7.1 hereof.  THIS PROXY AND POWER OF





                                      -11-
<PAGE>   12

ATTORNEY IS IRREVOCABLE AND COUPLED WITH AN INTEREST.  Stockholder hereby
revokes, effective upon the execution and delivery of the Merger Agreement by
the parties thereto, all other proxies and powers of attorney with respect to
the Shares that Stockholder may have heretofore appointed or granted, and no
subsequent proxy or power of attorney (except in furtherance of Stockholder's
obligations under Section 7.1 hereof) shall be given or written consent executed
(and if given or executed, shall not be effective) by Stockholder with respect
thereto so long as this Agreement remains in effect.

          8.    Termination.  Other than the Stock Option, the termination which
shall be governed by Section 2.2(a), this Agreement shall terminate on the date
(the "Termination Date") that is the earlier of

           (i)  the date upon which the Effective Date occurs and

          (ii)  (A) if the Merger Agreement is terminated

                       (I)  by the Company in accordance section
                9.1(b)(iii), 9.1(b)(iv) or 9.1(d)(ii) thereof,

                      (II)  (a) by the Company in accordance with
                section 9.1(b)(i) thereof, (b) no Acquisition
                Proposal (as defined in the Merger Agreement)
                shall be pending or shall have been proposed or
                announced and (c) the Company shall not have
                exercised its rights set forth in the proviso of
                section 6.2 of the Merger Agreement,

                     (III)  by the Parent in accordance with
                Section 9.1(c)(ii) or 9.1(d)(ii) thereof,

                      (IV)  by the Parent and the Company in
                accordance with section 9.1(a) thereof, or

                       (V)  (a) by the Company or the Parent
                in accordance with Section 9.1(d)(i) thereof
                and (b) no Acquisition Proposal shall be
                pending or shall have been proposed or announced
                and (c) the Company shall not have exercised
                its rights set forth in the proviso of section
                6.2 of the Merger Agreement,

          the date of the termination of the Merger Agreement or





                                      -12-
<PAGE>   13
          (B)   if the Merger Agreement is otherwise terminated in accordance
with section 9.1 of the Merger Agreement, the date four months after the date of
the termination of the Merger Agreement.  Notwithstanding the foregoing, if (x)
the Merger Agreement has been terminated in a manner described in clause (ii)(B)
of this Section 8 and (y) on the date four months after the date of termination
of the Merger Agreement the Company shall be a party to an agreement with a
party, other than Purchaser (or an affiliate of Purchaser), that contemplates a
merger, acquisition, consolidation or similar transaction involving the Company
or any of "significant subsidiaries" (as defined in 17 C.F.R. Section
210.01-02), or any purchase of all or any significant portion of the assets or
any equity securities of the Company or any of such significant subsidiaries,
then the Termination Date shall be the date nine months after the date of
termination of the Merger Agreement.

          9.    Miscellaneous.

                9.1.    Expenses.  Except as otherwise provided herein, all
costs and expenses incurred in connection with the transactions contemplated by
this Agreement shall be paid by the party incurring such expenses.

                9.2.    Further Assurances.  Lincoln, Stockholder and Purchaser
will execute and deliver all such further documents and instruments and take all
such further action as may be necessary in order to consummate the transactions
contemplated hereby.

                9.3.    Specific Performance.  The parties hereto agree that
irreparable damage would occur in the event any provision of this Agreement was
not performed in accordance with the terms hereof and that the parties shall be
entitled to specific performance of the terms hereof, in addition to any other
remedy at law or in equity.

                9.4.    Entire Agreement.  This Agreement constitutes the entire
agreement between Lincoln, Purchaser and Stockholder with respect to the subject
matter hereof and supersede all prior agreements and understandings, both
written and oral, between Lincoln, Purchaser and Stockholder with respect to the
subject matter hereof.





                                      -13-
<PAGE>   14

                9.5.    Assignment.  This Agreement shall not be assigned by
operation of law or otherwise, except that Purchaser may assign all or any of
its rights and obligations hereunder to any affiliate of Purchaser, provided
that no such assignment shall relieve Purchaser of its obligations hereunder if
such assignee does not perform such obligations.

                9.6.    Parties in Interest.  This Agreement shall be binding
upon, inure solely to the benefit of, and be enforceable by, the parties hereto
and their successors and permitted assigns.  Nothing in this Agreement, express
or implied, is intended to or shall confer upon any other person any right,
benefit or remedy of any nature whatsoever under or by reason of this Agreement.

                9.7.    Amendment; Waiver.  This Agreement may not be amended
except by an instrument in writing signed by the parties hereto.  Any party
hereto may (a) extend the time for the performance of any obligation or other
act of any other party hereto, (b) waive any inaccuracy in the representations
and warranties contained herein or in any document delivered pursuant hereto and
(c) waive compliance with any agreement or condition contained herein.  Any such
extension or waiver shall be valid if set forth in an instrument in writing
signed by the party or parties to be bound thereby.

                9.8.    Severability.  If any term or other provision of this
Agreement is invalid, illegal or incapable of being enforced by any rule of law,
or public policy, all other conditions and provisions of this Agreement shall
nevertheless remain in full force and effect so long as the economic or legal
substance of this Agreement is not affected in any manner materially adverse to
any party.  Upon such determination that any term or other provision is invalid,
illegal or incapable of being enforced, the parties hereto shall negotiate in
good faith to modify this Agreement so as to effect the original intent of the
parties as closely as possible in a mutually acceptable manner in order that the
terms of this Agreement remain as originally contemplated to the fullest extent
possible.

                9.9.    Notices.  Except as otherwise provided herein, all
notices, requests, claims, demands and other communications hereunder shall be
in writing and shall be given (and





                                      -14-
<PAGE>   15

shall be deemed to have been duly given upon receipt) by delivery in person, by
cable, facsimile transmission, telegram or telex or by registered or certified
mail (postage prepaid, return receipt requested) to the respective parties at
the following addresses (or at such other address for a party as shall be
specified in a notice given in accordance with this Section 9.9):

                if to Purchaser:

                        Humana Inc.
                        The Humana Building
                        500 West Main Street
                        P.O. Box 1438
                        Louisville, Kentucky  40201-1438
                        Attention:  W. Roger Drury
                                    Chief Financial Officer
                        Facsimile:    (502) 580-3610
                        Telephone     (502) 580-3923

                with a copy to:

                        Fried, Frank, Harris, Shriver & Jacobson
                        One New York Plaza
                        New York, New York  10004-1980
                        Attention:  Jeffrey Bagner, Esq.
                        Facsimile:    (212) 859-4000
                        Telephone:    (212) 859-8136

                if to Lincoln:

                        Lincoln National Corporation
                        200 East Berry Street
                        Fort Wayne, Indiana  46802-2706
                        Attention:  John L. Steinkamp, Esq.
                        Facsimile:    (219) 455-4531
                        Telephone:    (219) 455-3628

                if to Stockholder:
                        American States Insurance Company
                        500 North Meridian Street
                        Indianapolis, Indiana  46204-1275
                        Attention:  Thomas Ober
                        Facsimile:    (317) 262-6616
                        Telephone:    (317) 262-6262





                                      -15-
<PAGE>   16

                with a copy of all communications to Lincoln or Stockholder to:

                        Sutherland, Asbill & Brennan
                        1275 Pennsylvania Avenue, N.W.
                        Washington, D.C.  20004-2404
                        Attention:  David A. Massey, Esq.
                        Facsimile:     (202) 637-3593
                        Telephone:     (202) 383-0100

                9.10.   Governing Law.  This Agreement shall be governed by, and
construed in accordance with, the laws of the State of New York applicable to
contracts executed in and to be performed in New York without regard to any
principles of choice of law or conflicts of law of such state.  All actions and
proceedings arising out of or relating to this Agreement shall be heard and
determined in any state or federal court sitting in the City of New York.

                9.11.   Headings.  The descriptive headings contained in this
Agreement are included for convenience of reference only and shall not affect in
any way the meaning or interpretation of this Agreement.

                9.12.   Counterparts.  This Agreement may be executed and
delivered (including by facsimile transmission) in one or more counterparts, and
by the different parties hereto in separate counterparts, each of which when so
executed and delivered shall be deemed to be an original but all of which taken
together shall constitute one and the same agreement.





                                      -16-
<PAGE>   17

          IN WITNESS WHEREOF, each of the parties hereto has caused this
Agreement to be duly executed and delivered as of the date first written above.


                                    HUMANA INC.


                                    By:  /S/ ARTHUR P. HIPWELL
                                       -----------------------------------------
                                       Name:  Arthur P. Hipwell
                                       Title: Senior Vice President


                                    LINCOLN NATIONAL CORPORATION


                                    By:  /S/ IAN M. ROLLAND
                                       -----------------------------------------
                                       Name:  Ian M. Rolland
                                       Title: Chairman & CEO


                                    AMERICAN STATES INSURANCE COMPANY


                                    By:  /S/ F. CEDRIC MCCURLEY
                                       -----------------------------------------
                                       Name:  F. Cedric McCurley
                                       Title: President & CEO





                                      -17-


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