CONCENTRA MANAGED CARE INC
SC 13E3, 1999-06-07
SPECIALTY OUTPATIENT FACILITIES, NEC
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================================================================================
                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                 SCHEDULE 13E-3
                        RULE 13E-3 TRANSACTION STATEMENT
       (Pursuant to Section 13(e) of the Securities Exchange Act of 1934)
                                 ---------------
                          CONCENTRA MANAGED CARE, INC.
                              (Name of the Issuer)

                   Welsh, Carson, Anderson & Stowe, VIII, L.P.
                            Yankee Acquisition Corp.
                                 John K. Carlyle
                              W. Tom Fogarty, M.D.
                               James M. Greenwood
                                Thomas E. Kiraly
                                Kenneth Loffredo
                               Richard A. Parr II
                                Daniel J. Thomas
                          Concentra Managed Care, Inc.
                      (Name of Person(s) Filing Statement)
                                 ---------------
                     COMMON STOCK, PAR VALUE $.01 PER SHARE
                         (Title of Class of Securities)
                                 ---------------
                                    20589T103
                      (CUSIP Number of Class of Securities)
- --------------------------------------------------------------------------------
                                 Paul B. Queally
                             Yankee Acquisition Corp
                 c/o Welsh, Carson, Anderson & Stowe VIII, L.P.
                                 320 Park Avenue
                            New York, New York 10022
                                 (212) 893-9500
- --------------------------------------------------------------------------------
                                Daniel J. Thomas
                          Concentra Managed Care, Inc.
                                 312 Union Wharf
                           Boston, Massachusetts 02109
                                 (617) 367-2163
- --------------------------------------------------------------------------------

                                 WITH COPIES TO:

- --------------------------------------------------------------------------------
                             Robert A. Schwed, Esq.
                             Othon A. Prounis, Esq.
                           Reboul, MacMurray, Hewitt,
                                Maynard & Kristol
                              45 Rockefeller Plaza
                            New York, New York 10111
                                 (212) 841-5700
- --------------------------------------------------------------------------------
                               Richard A. Parr II
                          Concentra Managed Care, Inc.
                               5080 Spectrum Drive
                              Suite 400, West Tower
                              Addison, Texas 75001
                                 (800) 232-3550
- --------------------------------------------------------------------------------
                            Jeffrey A. Chapman, Esq.
                             Vinson & Elkins L.L.P.
                            3700 Trammell Crow Center
                                2001 Ross Avenue
                            Dallas, Texas 75201-2975
                                 (214) 220-7795
- --------------------------------------------------------------------------------
   (Name, Address and Telephone Number of Person Authorized to Receive Notices
           and Communications on Behalf of Person(s) Filing Statement)

         This statement is filed in connection with (check the appropriate box):

         a.       / X /    The  filing  of  solicitation  materials  or  an
                           information  statement  subject  to  Regulation  14A,
                           Regulation 14C, or Rule 13e-3(c) under the Securities
                           Exchange Act of 1934.

         b.       /  /     The filing of a registration statement under the
                           Securities Act of 1933.

         c.       /  /     A tender offer.

         d.       /  /     None of the above.

         Check the  following  box if the  soliciting  materials or  information
statement referred to in checking box (a) are preliminary copies: /X/

                            CALCULATION OF FILING FEE
- --------------------------------------------------------------------------------
  TRANSACTION VALUATION (1)                                AMOUNT OF FILING FEE
- --------------------------------------------------------------------------------
  $  792,505,929.90                                        $  158,501.19
- --------------------------------------------------------------------------------
/X/      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.

Amount previously paid:    $158,501.19
Form or registration no.:  Schedule 14A - Preliminary
                           Proxy Statement

Filing Party:              Concentra Managed Care, Inc.
Dated filed:               March 31, 1999

         (1) For  purposes  of  calculating  the fee only.  Assumes  purchase of
47,294,074  shares of common  stock,  par value  $.01 per  share,  of  Concentra
Managed Care, Inc. at $16.50 per share and the purchase of underlying options to
purchase Common Stock for an aggregate of $12,153,708.90
================================================================================
<PAGE>

         This Rule  13e-3  transaction  statement  relates  to the  Amended  and
Restated Agreement and Plan of Merger,  dated as of March 24, 1999, by and among
Concentra  Managed Care, Inc., a Delaware  corporation,  and Yankee  Acquisition
Corp.,  a  Delaware   corporation,   pursuant  to  which  Yankee,   currently  a
wholly-owned  subsidiary of Welsh, Carson, Anderson & Stowe VIII, L.P. ("WCAS"),
will be merged with and into  Concentra,  with  Concentra  surviving the merger.
WCAS VIII  Associates LLC, a Delaware  limited  liability  company,  is the sole
general   partner  of  WCAS.  WCAS  formed  Yankee  to  consummate  the  merger.
Concurrently  with the filing of this  statement,  Concentra  is filing with the
Securities and Exchange Commission a preliminary proxy statement on Schedule 14A
under the Securities and Exchange Act of 1934, as amended, relating to a special
meeting of  stockholders  of Concentra.  At such meeting,  the  stockholders  of
Concentra will vote upon a proposal to approve the merger agreement.

         A copy of the preliminary proxy statement is attached hereto as Exhibit
(d)(3).  A copy  of the  merger  agreement  is  attached  as  Appendix  A to the
preliminary proxy statement.

         Upon the terms and subject to the  conditions of the merger  agreement,
at the effective time of the merger:

         o        Yankee will be merged with and into Concentra,  with Concentra
                  continuing as the surviving corporation.

         o        Each  outstanding  share of common stock of Concentra  will be
                  converted  into the right to receive $16.50 per share in cash,
                  other than shares held by stockholders who are entitled to and
                  have perfected their dissenters' appraisal rights.

         o        Shares  of  Concentra  common  stock  held by  Concentra,  its
                  subsidiaries, and Yankee or its affiliates will be canceled in
                  the merger.

         The  effective  time of the  merger  will be the  date  and time of the
filing  of  articles  of  merger  with the  Secretary  of State of the  State of
Delaware which is scheduled to occur as soon as practicable  after  satisfaction
or waiver of the  conditions  to the  merger  that are  specified  in the merger
agreement.  It is  anticipated  that, if all  conditions to the merger have been
satisfied or waived,  the  effective  time will occur on the date of the special
meeting or as soon thereafter as practicable.

         The following  cross  reference  sheet is supplied  pursuant to General
Instruction F to Schedule 13E-3 and shows the location in the preliminary  proxy
statement  of the  information  required  to be included  in this  statement  by
Schedule 13E-3. The information in the preliminary  proxy  statement,  a copy of
which is attached hereto as Exhibit  (d)(3),  is hereby  expressly  incorporated
herein  by  reference  and the  responses  to each  item in this  statement  are
qualified in their  entirety by the  information  contained  in the  preliminary
proxy statement.  Capitalized  terms used herein and not otherwise defined shall
have the meanings ascribed to such terms in the preliminary proxy statement. The
preliminary  proxy  statement  will be completed and, if  appropriate,  amended,
prior to the time  the  definitive  proxy  statement  is first  sent or given to
stockholders  of  Concentra.  This  statement  will be amended as  necessary  to
reflect the completion or amendment of the preliminary proxy statement.

         Pursuant to Rule 13e-3, Concentra is filing this statement as issuer of
common stock which is the subject of this Rule 13e-3 transaction.  The filing of
this statement shall not be construed as an admission by Concentra, WCAS, Yankee
or any of their  affiliates,  including  Messrs.  John K. Carlyle,  Tom Fogarty,
M.D., James M. Greenwood,  Thomas E. Kiraly, Kenneth Loffredo, Richard A Parr II
and Daniel J. Thomas,  that Concentra is "controlled" by WCAS or that WCAS is an
"affiliate" of Concentra within the meaning of Rule 13e-3 under Section 13(e) of
the Securities Exchange Act of 1934, as amended.



<PAGE>
                              CROSS REFERENCE SHEET

<TABLE>
<CAPTION>
<S>                                                    <C>
- -----------------------------------------------------------------------------------------------------------------------------------
  ITEM IN SCHEDULE 13E-3                               CAPTION OR LOCATION IN THE PROXY STATEMENT
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 1(a)                                            Cover Page,  "Questions  and Answers About the Merger" and  "Summary--The
                                                       Companies"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 1(b)                                            Cover  Page,  "Summary--Record  Date;  Voting  Power"  and  "The  Special
                                                       Meeting--Record Date and Quorum Requirement"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 1(c) - (d)                                      "Summary--Historical  Market  Information" and "Purchases of Common Stock
                                                       by Certain Persons"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 1(e)                                            *
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 1(f)                                            "Purchases of Common Stock by Certain Persons"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 2(a) - (d) and (g)                              "Summary--The Companies",  "Principal Stockholders and Stock Ownership of
                                                       Management and Others",  "Certain Information  Concerning  Concentra" and
                                                       "Certain Information Concerning Yankee"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 2(e) - (f)                                      "Certain  Information  Concerning  Concentra"  and  "Certain  Information
                                                       Concerning Yankee"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 3(a)(1)                                         "Summary--Interests   That   Differ   From  Your   Interests",   "Special
                                                       Factors--Background of the Merger" and "--Interests of Certain Persons in
                                                       the Merger", and "Purchases of Common Stock By Certain Persons"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 3(a)(2)                                         "Questions and Answers About the Merger",  "Summary--Terms  of the Merger
                                                       Agreement",  "--Interests  That  Differ  From Your  Interests",  "Special
                                                       Factors--Background  of the Merger",  "--The Special  Committee's and the
                                                       Board's Recommendations",  "--Purpose and Reasons of WCAS and the Members
                                                       of Management  for the Merger",  "--Interests  of Certain  Persons in the
                                                       Merger", "--Certain Effects of the Merger",  "--Financing of the Merger",
                                                       "The  Merger--Certain  Terms of the Merger Agreement",  and "Purchases of
                                                       Common Stock By Certain Persons"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 3(b)                                            "Questions and Answers About the Merger",  "Summary--Terms  of the Merger
                                                       Agreement",  "--Interests  That  Differ  From Your  Interests",  "Special
                                                       Factors--Background  of the Merger",  "--The Special  Committee's and the
                                                       Board's Recommendations",  "--Purpose and Reasons of WCAS and the Members
                                                       of  Management  for the  Merger",  "Interests  of Certain  Persons in the
                                                       Merger", "--Certain Effects of the Merger",  "--Financing of the Merger",
                                                       "The   Merger--Certain   Terms  of  the  Merger
- -----------------------------------------------------------------------------------------------------------------------------------

</TABLE>


<PAGE>
<TABLE>
<CAPTION>
<S>                                                    <C>
- -----------------------------------------------------------------------------------------------------------------------------------
  ITEM IN SCHEDULE 13E-3                               CAPTION OR LOCATION IN THE PROXY STATEMENT
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
                                                       Agreement", "Certain Information Concerning Yankee" and "Purchases of
                                                       Common Stock By Certain Persons"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 4(a)                                            "Questions and Answers about the Merger",  "Summary--Terms  of the Merger
                                                       Agreement", "--Interests That Differ From Your Interests", "--Dissenters'
                                                       Appraisal Rights", "Special  Factors--Interests of Certain Persons in the
                                                       Merger", "--Certain Effects of the Merger",  "--Financing of the Merger",
                                                       "The  Special  Meeting--Effective  Time of the  Merger  and  Payment  for
                                                       Shares", "The Merger--Certain Terms of the Merger Agreement",  "Rights of
                                                       Dissenting Stockholders" and Appendix A to the proxy statement
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 4(b)                                            "Questions and Answers about the Merger",  "Summary--Terms  of the Merger
                                                       Agreement",  "--Interests That Differ From Your Interests",  "--Appraisal
                                                       Rights",   "Special   Factors--Background  of  the  Merger",   "--Certain
                                                       Projections", "--The Special Committee's and the Board's Recommendation",
                                                       "--Purpose  and  Reasons of WCAS and the  Members of  Management  for the
                                                       Merger",  "--Interests  of  Certain  Persons in the  Merger",  "--Certain
                                                       Effects of the Merger", "--Financing of the Merger", "The Merger--Certain
                                                       Terms of the Merger Agreement",  "Rights of Dissenting  Shareholders" and
                                                       Appendix A to the proxy statement
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 5(a) - (b)                                      "Special  Factors--Purpose  and  Reasons  of  WCAS  and  the  Members  of
                                                       Management  for the  Merger",  "--Certain  Effects  of the  Merger",  and
                                                       "--Conduct of Concentra's Business After the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 5(c)                                            "Summary--Interests   That   Differ   From  Your   Interests",   "Special
                                                       Factors--Interests  of Certain  Persons in the Merger" and  "--Conduct of
                                                       Concentra's Business After the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 5(d)                                            "Special  Factors--Financing  of the  Merger",  "Conduct  of  Concentra's
                                                       Business After the Merger", and "The Merger--Certain  Terms of the Merger
                                                       Agreement"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 5(e)                                            "Questions and Answers About the Merger",  "Summary--Terms  of the Merger
                                                       Agreement",  "--Interests  That  Differ  From Your  Interests",  "Special
                                                       Factors--Background  of the Merger",  "--The Special  Committee's and the
                                                       Board's Recommendations",  "--Purpose and Reasons of WCAS and the Members
                                                       of Management  for the Merger",  "--Interests  of Certain  Persons in the
                                                       Merger", "--Certain Effects of the Merger",  "--Financing of the Merger",
                                                       "--Conduct  of  Concentra's   Business   After  the  Merger",   and  "The
                                                       Merger--Certain Terms of the Merger Agreement"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 5(f) - (g)                                      "Questions  and Answers  About the Merger" and "Special
                                                       Factors--Certain Effects of the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

</TABLE>


<PAGE>
<TABLE>
<CAPTION>
<S>                                                    <C>
- -----------------------------------------------------------------------------------------------------------------------------------
  ITEM IN SCHEDULE 13E-3                               CAPTION OR LOCATION IN THE PROXY STATEMENT
- -----------------------------------------------------------------------------------------------------------------------------------

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

  Item 6(a)                                            "Special Factors--Financing of the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 6(b)                                            "The Merger--Estimated Fees and Expenses of the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 6(c)                                            "Special Factors--Financing of the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 6(d)                                            *
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 7(a) - (c)                                      "Questions   and  Answers   about  the   Merger",   "Summary",   "Special
                                                       Factors--Background  of the Merger",  "--The Special  Committee's and the
                                                       Board's  Recommendation"  and  "--Purpose  and  Reasons  of WCAS  and the
                                                       Members of Management for the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 7(d)                                            "Questions   and  Answers   about  the   Merger",   "Summary",   "Special
                                                       Factors--Background  of the Merger",  "--The Special  Committee's and the
                                                       Board's  Recommendation",  "--Purpose and Reasons of WCAS and the Members
                                                       of Management  for the Merger",  "--Interests  of Certain  Persons in the
                                                       Merger", "--Certain Effects of the Merger",  "--Financing of the Merger",
                                                       "--Conduct of Concentra's  Business After the Merger",  "Material Federal
                                                       Income Tax Consequences", "The Merger--Terms of the Merger Agreement" and
                                                       "--Estimated  Fees and Expenses of the Merger" and "Rights of  Dissenting
                                                       Stockholders"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 8(a)                                            "Questions  and Answers about the Merger",  "Summary--  Recommendations",
                                                       "Special    Factors--The    Special    Committee's    and   the   Board's
                                                       Recommendation", and "--Position of WCAS and the Members of Management as
                                                       to Fairness of the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 8(b)                                            "Questions  and Answers  about the  Merger",  "Summary--Recommendations",
                                                       "--Opinion  of  Concentra's  Financial  Advisor",  "--Terms of the Merger
                                                       Agreement", "--Interests That Differ From Your Interests", "--Dissenters'
                                                       Appraisal  Rights",   "--Historical  Market   Information",   "--Selected
                                                       Consolidated  Financial  Data  of the  Company",  "Certain  Projections",
                                                       "Special  Factors--Background of the Merger",  "--The Special Committee's
                                                       and the Board's  Recommendation",  "--Opinion  of  Concentra's  Financial
                                                       Advisor",  "--Purpose  and Reasons of WCAS and the Members of  Management
                                                       for the Merger",  "--Position of WCAS and the Members of Management as to
                                                       Fairness of the Merger",  "--Interests of Certain Persons in the Merger",
                                                       "Certain Effects of the Merger", "The Special Meeting--Voting Procedures"
                                                       and "Rights of Dissenting Shareholders"
- -----------------------------------------------------------------------------------------------------------------------------------

</TABLE>


<PAGE>
<TABLE>
<CAPTION>
<S>                                                    <C>
- -----------------------------------------------------------------------------------------------------------------------------------
  ITEM IN SCHEDULE 13E-3                               CAPTION OR LOCATION IN THE PROXY STATEMENT
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 8(c)                                            "Questions and Answers about the Merger",  "Summary--Voting  Procedures",
                                                       "Special    Factors--The    Special    Committee's    and   the   Board's
                                                       Recommendation", "The Special Meeting--Voting Procedures" and "The
                                                       Merger--Terms of the Merger Agreement--Conditions to the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 8(d)                                            "Questions  and Answers  about the  Merger",  "Summary--Recommendations",
                                                       "--Opinion    of     Concentra's     Financial     Advisor",     "Special
                                                       Factors--Background  of the Merger",  "--The Special  Committee's and the
                                                       Board's  Recommendation",  "--Opinion of Concentra's  Financial Advisor",
                                                       and "--Interest of Certain Persons in the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 8(e)                                            "Questions  and Answers  about the  Merger",  "Summary--Recommendations",
                                                       "Special  Factors--Background of the Merger",  "--The Special Committee's
                                                       and the Board's Recommendations"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 8(f)                                            "Special Factors -- Background of the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 9(a) - (c)                                      "Summary--Recommendations", "--Opinion of Concentra's Financial Advisor",
                                                       "Special  Factors--Background of the Merger",  "--The Special Committee's
                                                       and the Board's  Recommendation",  "--Opinion  of  Concentra's  Financial
                                                       Advisor"  and  "--Conflicts  of  Interest"  and  Appendix  B to the proxy
                                                       statement
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 10(a) - (b)                                     "Special Factors--Interests of Certain Persons in the Merger", "Principal
                                                       Shareholders and Stock Ownership of Management and Others", and "Purchase
                                                       Of Common Stock By Certain Persons"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 11                                              "Questions  and  Answers  about the  Merger",  "Summary--The  Companies",
                                                       "--Terms  of the Merger  Agreement",  "--Interests  That Differ From Your
                                                       Interests",  "Special  Factors--Background of the Merger", "--The Special
                                                       Committee's  and the Board's  Recommendation",  "--Purpose and Reasons of
                                                       WCAS and the  Members of  Management  for the  Merger",  "--Interests  of
                                                       Certain  Persons  in the  Merger",  "--Certain  Effects  of the  Merger",
                                                       "--Financing  of the Merger",  "The  Merger--Certain  Terms of the Merger
                                                       Agreement",   "Certain  Information   Concerning  Concentra  ",  "Certain
                                                       Information  Concerning  Yankee" and "Purchase of Common Stock by Certain
                                                       Persons" and Appendix A to the proxy statement.
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 12(a) - (b)                                     "Summary--Recommendations"   and  "--Interests   That  Differ  From  Your
                                                       Interests",  "Special  Factors--The  Special  Committee's and the Board's
                                                       Recommendation",  "--Purpose
- -----------------------------------------------------------------------------------------------------------------------------------
</TABLE>


<PAGE>
<TABLE>
<CAPTION>
<S>                                                    <C>
- -----------------------------------------------------------------------------------------------------------------------------------
  ITEM IN SCHEDULE 13E-3                               CAPTION OR LOCATION IN THE PROXY STATEMENT
- -----------------------------------------------------------------------------------------------------------------------------------
                                                       and  Reasons  of WCAS and the  Members  of  Management  for the  Merger",
                                                       "--Position  of WCAS and the Members of  Management as to Fairness of the
                                                       Merger",  "--Interests  of  Certain  Persons  in  the  Merger",  "Certain
                                                       Information  Concerning  Concentra" and "Certain  Information  Concerning
                                                       Yankee"
- -----------------------------------------------------------------------------------------------------------------------------------
  Item 13(a)                                           "Summary--Dissenters'    Appraisal    Rights"   "Rights   of   Dissenting
                                                       Shareholders" and Appendix A and Appendix C to the proxy statement
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 13(b)                                           *
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 13(c)                                           *
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 14(a)                                           "Summary--Selected Consolidated Financial Data" "Incorporation of Certain
                                                       Documents by Reference" and "Independent Auditors"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 14(b)                                           "Summary--Consolidated Pro Forma Financial Statements (Unaudited)"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 15(a) - (b)                                     "Questions and Answers About the Merger"  "Summary--Interests that Differ
                                                       From Your Interests", "Special Factors--Background of the Merger", "--The
                                                       Special  Committee's  and the Board's  Recommendation",  "--Interests  of
                                                       Certain   Persons   in   the   Merger",   "The   Special   Meeting--Proxy
                                                       Solicitation",  "The Merger--Certain Terms of the Merger Agreement",  and
                                                       "--Estimated Fees and Expenses of the Merger"
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 16                                              Proxy Statement
- -----------------------------------------------------------------------------------------------------------------------------------

- -----------------------------------------------------------------------------------------------------------------------------------
  Item 17(a) - (f)                                     *
- -----------------------------------------------------------------------------------------------------------------------------------

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

- ------------------------------
*Not applicable or answer is negative.

</TABLE>



ITEM 1.  ISSUER AND CLASS OF SECURITY SUBJECT TO THE TRANSACTION.

         (a) The  information set forth on the cover page to the proxy statement
and in the  sections  entitled  "Questions  and  Answers  About the  Merger" and
"Summary--The  Companies"  of the  proxy  statement  is  incorporated  herein by
reference.

         (b) The  information set forth on the cover page to the proxy statement
and in the  sections  entitled  "Summary--Record  Date;  Voting  Power" and "The
Special  Meeting--Record  Date and Quorum Requirement" of the proxy statement is
incorporated herein by reference.

         (c)   The   information   set   forth   in   the   sections    entitled
"Summary--Historical  Market  Information"  and  "Purchases  of Common  Stock by
Certain Persons" of the proxy statement is incorporated herein by reference.



<PAGE>


         (d)   The   information   set   forth   in   the   sections    entitled
"Summary--Historical  Market  Information"  and  "Purchases  of Common  Stock by
Certain Persons" of the proxy statement is incorporated herein by reference.

         (e)      Not applicable.

         (f) The  information  set forth in the section  entitled  "Purchases of
Common Stock by Certain Persons"of the proxy statement is incorporated herein by
reference.

ITEM 2.  IDENTITY AND BACKGROUND.

         (a) - (d),  (g) The  information  set  forth in the  sections  entitled
"Summary--The  Companies",   "Principal  Stockholders  and  Stock  Ownership  of
Management and Others," "Certain Information  Concerning Concentra" and "Certain
Information  Concerning Yankee" of the proxy statement is incorporated herein by
reference.

         (e), (f) The  information set forth in the sections  entitled  "Certain
Information Concerning Concentra" and "Certain Information Concerning Yankee" of
the proxy statement is incorporated herein by reference.

ITEM 3.  PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS.

         (a)  (1)  The   information   set  forth  in  the   sections   entitled
"Summary--Interests    That    Differ    From    Your    Interests",    "Special
Factors--Background  of the Merger" and  "--Interests  of Certain Persons in the
Merger"  and  "Purchases  of  Common  Stock By  Certain  Persons"  of the  proxy
statement is incorporated herein by reference.

         (a)  (2)  (b)  The  information  set  forth  in the  sections  entitled
"Questions  and  Answers  About  the  Merger",  "Summary--Terms  of  the  Merger
Agreement",    "Interests   That   Differ   From   Your   Interests",   "Special
Factors--Background  of the Merger",  "--The Special Committee's and the Board's
Recommendations",  "--Purpose  and Reasons of WCAS and the Members of Management
for the Merger",  "--Interests  of Certain  Persons in the  Merger",  "--Certain
Effects of the Merger",  "--Financing of the Merger", "The Merger--Certain Terms
of the Merger Agreement",  and "Purchases of Common Stock By Certain Persons" of
the proxy statement is incorporated herein by reference.

         (b) The information set forth in the sections  entitled  "Questions and
Answers   About  the  Merger",   "Summary--Terms   of  the  Merger   Agreement",
"--Interests That Differ From Your Interests",  "Special  Factors--Background of
the  Merger",  "--The  Special  Committee's  and the  Board's  Recommendations",
"--Purpose  and Reasons of WCAS and the Members of  Management  for the Merger",
"Interests of Certain Persons in the Merger", "--Certain Effects of the Merger",
"--Financing of the Merger", "The Merger--Certain Terms of the Merger Agreement"
"Certain  Information  Concerning  Yankee"  and  "Purchases  of Common  Stock By
Certain Persons" of the proxy statement is incorporated herein by reference.

ITEM 4.  TERMS OF THE TRANSACTION.

         (a) The information set forth in the sections  entitled  "Questions and
Answers   about  the  Merger",   "Summary--Terms   of  the  Merger   Agreement",
"--Interests That Differ From Your Interests", "--Dissenters' Appraisal Rights",
"Special  Factors--The  Special  Committee's  and the  Board's  Recommendation",
"--Purpose and Reasons of WCAS for the Merger",  "--Interests of Certain Persons
in the Merger", "--Certain Effects of the Merger",  "--Financing of the Merger",
"The Special Meeting--Effective Time of the Merger and Payment for Shares", "The
Merger--Certain   Terms  of  the  Merger   Agreement",   "Rights  of  Dissenting
Stockholders"  and Appendix A of the proxy statement is  incorporated  herein by
reference.

         (b) The information set forth in the sections  entitled  "Questions and
Answers   about  the  Merger",   "Summary--Terms   of  the  Merger   Agreement",
"--Interests That Differ From Your Interests",  "--Appraisal  Rights",  "Special
Factors--Background  of the Merger",  "--Certain  Projections",  "--The  Special
Committee's and the Board's Recommendation",  "--Purpose and Reasons of WCAS and
the Members of Management for the Merger",  "--Interests  of Certain  Persons in
the Merger",  "--Certain  Effects of the Merger",  "--Financing  of the Merger",
"The  Merger--Certain



<PAGE>


Terms of the Merger Agreement", "Rights of Dissenting Shareholders" and Appendix
A of the proxy statement is incorporated herein by reference.

ITEM 5.  PLANS OR PROPOSALS OF THE ISSUER OR AFFILIATE.

         (a) - (b) The information set forth in the sections  entitled  "Special
Factors--Purpose  and  Reasons  of WCAS and the  Members of  Management  for the
Merger",  "--Certain  Effects of the  Merger",  and  "--Conduct  of  Concentra's
Business  After the Merger" of the proxy  statement  is  incorporated  herein by
reference.

         (c)   The   information   set   forth   in   the   sections    entitled
"Summary--Interests    That    Differ    From    Your    Interests",    "Special
Factors--Interests   of  Certain  Persons  in  the  Merger"  and  "--Conduct  of
Concentra's  Business After the Merger" of the proxy  statement is  incorporated
herein by reference.

         (d)  The  information  set  forth  in the  sections  entitled  "Special
Factors--Financing  of the Merger",  "Conduct of Concentra's  Business After the
Merger",  and "The  Merger--Certain  Terms of the Merger Agreement" of the proxy
statement is incorporated herein by reference.

         (e) The information set forth in the sections  entitled  "Questions and
Answers   About  the  Merger",   "Summary--Terms   of  the  Merger   Agreement",
"--Interests That Differ From Your Interests",  "Special  Factors--Background of
the  Merger",  "--The  Special  Committee's  and the  Board's  Recommendations",
"--Purpose  and Reasons of WCAS and the Members of  Management  for the Merger",
"--Interests  of  Certain  Persons  in the  Merger",  "--Certain  Effects of the
Merger",  "--Financing of the Merger",  "--Conduct of Concentra's Business After
the Merger",  and "The  Merger--Certain  Terms of the Merger  Agreement"  of the
proxy statement is incorporated herein by reference.

         (f) - (g) The information set forth in the sections entitled "Questions
and  Answers  About the  Merger" and  "Special  Factors--Certain  Effects of the
Merger" of the proxy statement is incorporated herein by reference.

ITEM 6.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.

         (a)  The  information  set  forth  in  the  section  entitled  "Special
Factors--Financing  of the Merger" of the proxy statement is incorporated herein
by reference.

         (b)  The   information   set  forth  in  the  section   entitled   "The
Merger--Estimated  Fees and  Expenses of the Merger" of the proxy  statement  is
incorporated herein by reference.

         (c)  The  information  set  forth  in the  sections  entitled  "Special
Factors--Financing  of the Merger" of the proxy statement is incorporated herein
by reference.

         (d)      Not applicable.

ITEM 7.  PURPOSE(S), ALTERNATIVES, REASONS AND EFFECTS.

         (a) - (c) The information set forth in the sections entitled "Questions
and Answers about the Merger",  "Summary",  "Special  Factors--Background of the
Merger", "-- Special Committee's and the Board's Recommendation", and "--Purpose
and Reasons of WCAS and the Members of  Management  for the Merger" of the proxy
statement is incorporated herein by reference.

         (d) The information set forth in the sections  entitled  "Questions and
Answers  about  the  Merger",  "Summary",  "Special  Factors--Background  of the
Merger", "--The Special Committee's and the Board's Recommendation",  "--Purpose
and Reasons of WCAS and the Members of Management for the Merger",  "--Interests
of  Certain  Persons  in  the  Merger",   "--Certain  Effects  of  the  Merger",
"--Financing  of the  Merger",  "--Conduct  of  Concentra's  Business  After the
Merger",  "Material Federal Income Tax Consequences",  "The Merger--Terms of the
Merger  Agreement" and "--Estimated Fees and Expenses of the Merger" and "Rights
of Dissenting  Stockholders"  of the proxy statement is  incorporated  herein by
reference.



<PAGE>


ITEM 8.  FAIRNESS OF THE TRANSACTION.

         (a) The information set forth in the sections  entitled  "Questions and
Answers about the Merger",  "Summary--  Recommendations",  "Special Factors--The
Special Committee's and the Board's Recommendation", and "--Position of WCAS and
the Members of Management  as to Fairness of the Merger" of the proxy  statement
is incorporated herein by reference.

         (b) The information set forth in the sections  entitled  "Questions and
Answers about the Merger", "Summary--Recommendations", "--Opinion of Concentra's
Financial Advisor", "--Terms of the Merger Agreement",  "--Interests That Differ
From Your Interests",  "--Dissenters'  Appraisal Rights",  "--Historical  Market
Information",  "--Selected Consolidated Financial Data of the Company", "Certain
Projections",  "Special  Factors--Background  of  the  Merger",  "--The  Special
Committee's and the Board's Recommendation", "--Opinion of Concentra's Financial
Advisor",  "--Purpose  and Reasons of WCAS and the Members of Management for the
Merger", "--Position of WCAS and the Members of Management as to Fairness of the
Merger", "--Interests of Certain Persons in the Merger", "Certain Effects of the
Merger",  "The Special  Meeting--Voting  Procedures"  and "Rights of  Dissenting
Shareholders" of the proxy statement is incorporated herein by reference.

         (d) The information set forth in the sections  entitled  "Questions and
Answers about the Merger", "Summary--Recommendations", "--Opinion of Concentra's
Financial Advisor", "Special  Factors--Background of the Merger", "--The Special
Committee's and the Board's Recommendation", "--Opinion of Concentra's Financial
Advisor",  and  "--Interest  of  Certain  Persons  in the  Merger"  of the proxy
statement is incorporated herein by reference.

         (e) The information set forth in the sections  entitled  "Questions and
Answers    about    the    Merger",     "Summary--Recommendations",     "Special
Factors--Background  of the Merger",  "--The Special Committee's and the Board's
Recommendations" of the proxy statement is incorporated herein by reference.

         (f)   The   information    set   forth   in   the   section    "Special
Factors--Background of the Merger" of the proxy statement is incorporated herein
by reference.

ITEM 9.  REPORTS, OPINIONS, APPRAISALS AND CERTAIN NEGOTIATIONS.

         (a)  -  (c)  The  information  set  forth  in  the  sections   entitled
"Summary--Recommendations",   "--Opinion  of  Concentra's   Financial  Advisor",
"Special  Factors--Background of the Merger", "--The Special Committee's and the
Board's  Recommendation",  "--Opinion  of  Concentra's  Financial  Advisor"  and
"--Conflicts  of Interest" and Appendix B of the proxy statement is incorporated
herein by reference.

ITEM 10.  INTEREST IN SECURITIES OF THE ISSUER.

         (a) - (b) The information set forth in the sections  entitled  "Special
Factors--Interests  of Certain Persons in the Merger",  "Principal  Shareholders
and Stock Ownership of Management and Others",  and "Purchase Of Common Stock By
Certain Persons" of the proxy statement is incorporated herein by reference.

ITEM 11. CONTRACTS,  ARRANGEMENTS OR UNDERSTANDINGS WITH RESPECT TO THE ISSUER'S
SECURITIES.

         The  information  set forth in the  sections  entitled  "Questions  and
Answers  about the  Merger",  "Summary--The  Companies",  "--Terms of the Merger
Agreement",   "--Interests   That   Differ   From  Your   Interests",   "Special
Factors--Background  of the Merger",  "--The Special Committee's and the Board's
Recommendation",  "--Purpose  and Reasons of WCAS and the Members of  Management
for the Merger",  "--Interests  of Certain  Persons in the  Merger",  "--Certain
Effects of the Merger",  "--Financing of the Merger", "The Merger--Certain Terms
of the Merger Agreement",  "Certain Information Concerning Concentra ", "Certain
Information Concerning Yankee" and "Purchase of Common Stock by Certain Persons"
and Appendix A of the proxy statement is incorporated herein by reference.



<PAGE>


ITEM 12. PRESENT INTENTION AND  RECOMMENDATION OF CERTAIN PERSONS WITH REGARD TO
THE TRANSACTION.

         (a) - (b) The information set forth in the sections entitled "Summary--
Recommendations"  and "--Interests  That Differ From Your  Interests",  "Special
Factors--The Special Committee's and the Board's Recommendation", "--Purpose and
Reasons of WCAS and the Members of Management  for the Merger",  "--Position  of
WCAS and the Members of Management  as to Fairness of the Merger",  "--Interests
of  Certain  Persons  in  the  Merger",  and  "Certain  Information   Concerning
Concentra" and "Certain Information Concerning Yankee" of the proxy statement is
incorporated herein by reference.

ITEM 13.  OTHER PROVISIONS OF THE TRANSACTION.

         (a)   The   information   set   forth   in   the   sections    entitled
"Summary--Dissenters'  Appraisal Rights" "Rights of Dissenting Shareholders" and
Appendix  A and  Appendix C of the proxy  statement  is  incorporated  herein by
reference.

         (b)      Not applicable.

         (c)      Not applicable.

ITEM 14.  FINANCIAL INFORMATION.

         (a)   The   information   set   forth   in   the   sections    entitled
"Summary--Selected   Consolidated  Financial  Data"  "Incorporation  of  Certain
Documents by Reference"  and  "Independent  Auditors" of the proxy  statement is
incorporated herein by reference.

         (b) The  relevant  financial  information  set forth  under the section
entitled "Summary--Selected  Consolidated Financial Data" of the proxy statement
is incorporated herein by reference.

ITEM 15.  PERSONS AND ASSETS EMPLOYED, RETAINED OR UTILIZED.

         (a) - (b) The information set forth in the sections entitled "Questions
and  Answers  About  the  Merger"  "Summary--Interests  that  Differ  From  Your
Interests",   "Special   Factors--Background  of  the  Merger",  "--The  Special
Committee's and the Board's Recommendation",  "--Interests of Certain Persons in
the Merger",  "The Special  Meeting--Proxy  Solicitation",  "The Merger--Certain
Terms of the  Merger  Agreement",  and  "--Estimated  Fees and  Expenses  of the
Merger" of the proxy statement is incorporated herein by reference.

ITEM 16.  ADDITIONAL INFORMATION.

         The  entirety  of  the  proxy  statement  is  incorporated   herein  by
reference.

ITEM 17.  MATERIAL TO BE FILED AS EXHIBITS.


- --------------------------------------------------------------------------------
  EXHIBIT NO.                              DESCRIPTION
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (a)(1)              Commitment  Letter  dated  February  26,  1999 from  Chase
                      Securities  Inc.,  The Chase  Manhattan  Bank, DLJ Capital
                      Funding,  Inc.,  Credit  Suisse  First  Boston  and  Fleet
                      National Bank.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (a)(2)              Letter  dated   February  24,  1999  from  Chase   Capital
                      Partners.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (a)(3)              Letter dated March 1, 1999 from WCAS Capital Partners III,
                      L.P.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (b)(1)              Opinion of BT Alex. Brown Incorporated dated March 2, 1999
                      (included   as  Appendix  B  to  the   Preliminary   Proxy
                      Statement, which is filed herewith as Exhibit (d)(3)).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (c)(1)              Agreement and Plan of Merger dated as of March 24, 1999 by
                      and between Yankee
- --------------------------------------------------------------------------------


<PAGE>


- --------------------------------------------------------------------------------
  EXHIBIT NO.                              DESCRIPTION
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
                      Acquisition   Corp.  and  Concentra   Managed  Care,  Inc.
                      (included   as  Appendix  A  to  the   Preliminary   Proxy
                      Statement, which is filed herewith as Exhibit (d)(3)).
- --------------------------------------------------------------------------------

  (c)(2)              Contribution Letter dated March 24, 1999 by Welsh, Carson,
                      Anderson & Stowe VIII, L.P.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (c)(3)              Stock Subscription Agreement dated as of March 24, 1999 by
                      Ferrer  Freeman  Thompson  & Co. on behalf of Health  Care
                      Capital  Partners  L.P.  and  on  behalf  of  Health  Care
                      Executive Partners and Yankee Acquisition Corp.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (d)(1)              Letter to Stockholders  (included in the Preliminary Proxy
                      Statement, which is filed herewith as Exhibit (d)(3)).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (d)(2)              Notice of Special Meeting of Stockholders (included in the
                      Preliminary  Proxy  Statement,  which is filed herewith as
                      Exhibit (d)(3)).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (d)(3)              Preliminary Proxy Statement (incorporated by reference to
                      the Schedule 14A filed by Concentra on June 7, 1999).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (d)(4)              Form  of  Proxy   (included  in  the   Preliminary   Proxy
                      Statement, which is filed herewith as Exhibit (d)(3)).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (d)(5)              Press Release issued by Concentra Managed Care, Inc. dated
                      as of April 28, 1999  (incorporated  by  reference  to the
                      Current Report on Form 8-K filed by Concentra on April 28,
                      1999).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (d)(6)              Press Release issued by Concentra Managed Care, Inc. dated
                      as of March 3,  1999  (incorporated  by  reference  to the
                      Current  Report on Form 8-K filed by Concentra on March 3,
                      1999).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (d)(7)              Press Release issued by Concentra Managed Care, Inc. dated
                      as of March 25, 1999  (incorporated  by  reference  to the
                      Current Report on Form 8-K filed by Concentra on March 29,
                      1999).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (e)                 Text of Section 262 of the  Delaware  General  Corporation
                      Law  (included  as  Appendix  C to the  Preliminary  Proxy
                      Statement, which is filed herewith as Exhibit (d)(3)).
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  (f)                 Not applicable.
- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
  99.1                Powers of Attorney.
- --------------------------------------------------------------------------------



<PAGE>


                                   SIGNATURES

         After due inquiry and to the best of our knowledge and belief,  each of
the  undersigned  certifies that the  information set forth in this Statement is
true, complete and correct.

                              CONCENTRA MANAGED CARE, INC.


                              By: /s/Daniel J. Thomas*
                                 -----------------------------------
                                    Daniel J. Thomas
Dated:                              President


                              YANKEE ACQUISITION CORP.

                              By: /s/Paul B. Queally
                                 -----------------------------------
                                    Paul B. Queally
Dated:                              President

                              WELSH, CARSON, ANDERSON & STOWE, VIII, L.P.

                              By:    WCAS VIII Associates, LLC, General Partner



                              By: /s/Paul B. Queally
                                 -----------------------------------
                                    Paul B. Queally
Dated:                              Managing Member

                              JOHN K. CARLYLE

                              /s/ John K. Carlyle*
Dated:                        --------------------------------------------------

                              W. TOM FOGARTY, M.D.

                              /s/ W. Tom Fogarty, M.D.*
Dated:                        --------------------------------------------------


                              JAMES M. GREENWOOD

                              /s/ James M. Greenwood*
Dated:                        --------------------------------------------------


                              THOMAS E. KIRALY

                              /s/ Thomas E. Kiraly*
Dated:                        --------------------------------------------------


                              KENNETH LOFFREDO

                              /s/ Kenneth Loffredo*
Dated:                        --------------------------------------------------


                              RICHARD A. PARR II

                              /s/ Richard A. Parr II
Dated:                        --------------------------------------------------


                              DANIEL J. THOMAS

                              /s/ Daniel J. Thomas*
Dated:                        --------------------------------------------------

*The undersigned, by signing his name hereto, does sign and execute this
Schedule 13E-3 as of this 6th day of June, 1999 pursuant to the Powers of
Attorney executed on behalf of the above-named officers and directors and
contemporaneously filed herewith with the Securities and Exchange Commission

                              By: /s/ Richard A. Parr II
                              --------------------------------------------------
                              Richard A. Parr II
                              Attorney-in-Fact



                                 EXHIBIT (A)(1)


                              CHASE SECURITIES INC.
                            THE CHASE MANHATTAN BANK
                                 270 Park Avenue
                            New York, New York 10017

                            DLJ CAPITAL FUNDING, INC.
                                 277 Park Avenue
                            New York, New York 10172

                           CREDIT SUISSE FIRST BOSTON
                              Eleven Madison Avenue
                          New York, New York 10010-3629

                               FLEET NATIONAL BANK
                               One Federal Street
                           Boston, Massachusetts 02110

                                February 26, 1999

                                  $475,000,000
                        SENIOR SECURED CREDIT FACILITIES
                                COMMITMENT LETTER


Welsh, Carson, Anderson & Stowe VIII, L.P.
320 Park Avenue

Suite 2500
New York, New York  10022-6815

Attention:        Andrew M. Paul
                  Paul B. Queally
                  D. Scott Mackesy

Gentlemen:

         You have advised Chase  Securities  Inc.  ("CSI"),  The Chase Manhattan
Bank ("CHASE"),  DLJ Capital Funding,  Inc. ("DLJ"),  Credit Suisse First Boston
("CSFB") and Fleet  National Bank ("FLEET";  together with Chase,  DLJ and CSFB,
the  "UNDERWRITERS")  that you,  together  with your  affiliates  (collectively,
"WCAS") will form a new  corporation  ("NEWCO") for the purpose of effecting the
recapitalization   (the   "ACQUISITION")   of  Concentra   Managed  Care,   Inc.
("CONCENTRA").  The  Acquisition  will be effected by a merger of Newco with and
into  Concentra,  as a result of which WCAS will own 93% of the common  stock of
Concentra and the existing  stockholders  will own 7% of such common stock.  The
existing  stockholders  of  Concentra,   other  than  WCAS,  will  receive  cash
consideration  in exchange for the remainder of their common stock in Concentra.
Alternatively,  in the event that WCAS and Concentra so agree,  WCAS will form a
new  corporation   ("NEWCO  I")  and  other  investors   selected  by  WCAS  and
satisfactory to the Underwriters (collectively,  the "OTHER INVESTOR") will form
a new corporation  ("NEWCO II"), and the Acquisition will be effected by Newco I
and Newco II being merged with and into Concentra, as a result of which WCAS and
the Other  Investor  will own 93% and 7%,  respectively,  of the common stock of
Concentra and the other existing stockholders of Concentra will receive cash for
all their  existing  common stock of Concentra.  For purposes  hereof,  any such
alternate  transaction (the

                                       1


<PAGE>


"ALTERNATE  TRANSACTION") is also referred to as the "Acquisition."  Immediately
after the Acquisition, Concentra will contribute (the "CONTRIBUTION") all of its
assets,  including  the stock of its  direct  subsidiaries,  to a newly  created
wholly-owned subsidiary (the "Borrower"). In connection with the Acquisition and
the  Contribution,  approximately  $328,000,000 of the existing  indebtedness of
Concentra will be refinanced (the  "REFINANCING";  together with the Acquisition
and the Contribution, the "TRANSACTIONS").

         In  connection  with the  Transactions,  you have  advised  us that you
propose to finance such  Transactions  with (i) senior secured credit facilities
in an aggregate amount of up to $475,000,000 (the "FACILITIES") of the Borrower,
comprise  of  term  loan   facilities   aggregating   $375,000,000   (the  "TERM
FACILITIES")  and a  $100,000,000  revolving  credit  facility  (the  "REVOLVING
FACILITY"),  (ii)  senior  subordinated  financing  in an  aggregate  amount  of
$190,000,000  of the Borrower on terms and  conditions  acceptable to the Agents
(as defined below),  (iii) senior  unsecured  pay-in-kind  notes of $110,200,000
issued by Concentra and (iv) common equity in Newco  consisting of  $288,500,000
in new cash equity contributed by WCAS and $59,100,000 of shares of common stock
of Concentra held by WCAS. After giving effect to the Acquisition,  the existing
stockholders  will own common equity of Concentra having a value of $30,600,000.
(In the event of the  Alternative  Acquisition,  the Other Investor would invest
$30,600,000  in the common equity of Newco II). The  Revolving  Facility will be
used to finance the  continuing  operations,  working  capital needs and general
corporate purposes of the Borrower and its subsidiaries,  including acquisitions
and investments in other entities  subject to restrictions and limitations to be
approved by CSI and the Underwriters.

         CSI is pleased  to advise  you that it is  willing  to act as  advisor,
co-lead arranger and joint book manager for the Facilities (in such capacity,  a
"CO-LEAD  ARRANGER"),  and Chase is  pleased to advise you that it is willing to
serve  as  administrative  agent  for the  Facilities  (in  such  capacity,  the
"ADMINISTRATIVE  AGENT").  In addition,  DLJ is pleased to advise you that it is
willing to act as co-lead  arranger (a "CO-LEAD  ARRANGER"),  joint book manager
and  syndication  agent for the Facilities (in such capacity,  the  "SYNDICATION
AGENT";  together with the Administrative  Agent,  collectively,  the "AGENTS").
Furthermore, each of Chase and DLJ is pleased to advise you of its commitment to
provide  up to  $166,250,000  of the  Facilities  and each of CSFB and  Fleet is
pleased to advise you that it is willing to act as co-documentation agent (each,
in such capacity,  a "CO-DOCUMENTATION  AGENT") and of its commitment to provide
up to $71,250,000 of the Facilities,  in each case upon the terms and subject to
the  conditions  set  forth  or  referred  to in  this  commitment  letter  (the
"COMMITMENT  Letter") and in the Summary of Terms and Conditions attached hereto
as Exhibit A (the "TERM SHEET").

         It is agreed that CSI and DLJ will act as the Co-Lead  Arrangers,  that
Chase will act as the Administrative Agent, that DLJ will act as the Syndication
Agent,   for  the   Facilities   and  that  CSFB  and  Fleet  will  act  as  the
Co-Documentation  Agents. You agree that no other agents, co-agents or arrangers
will be appointed,  no other titles will be awarded and no  compensation  (other
than that expressly  contemplated by the Term Sheet and the Fee Letters referred
to below) will be paid in connection with the Facilities  unless you and CSI and
Chase shall so agree.

         CSI and  Chase  intend  to  syndicate  the  Facilities  to a  group  of
financial   institutions   (together  with  the  Underwriters,   the  "LENDERS")
identified  by CSI and Chase in  consultation  with you. CSI and Chase intend to
commence  syndication  efforts  promptly  upon  your  entering  into  definitive
documentation with respect to the Acquisition,  and you agree actively to assist
CSI and Chase in completing a syndication  satisfactory to them. Such assistance
shall include (a) your using commercially  reasonable efforts to ensure that the
syndication  efforts benefit materially from the existing lending  relationships
of  WCAS,  Concentra  and  the  Borrower,  (b)  direct  contact  between  senior
management  and  advisors of WCAS,  Concentra  and the Borrower and the proposed
Lenders,  (c)  assistance  in  the  preparation  of a  Confidential  Information
Memorandum  and other  marketing  materials  to be used in  connection  with the
syndication and (d) the hosting,  with CSI and Chase, of one or more meetings of
prospective Lenders.

         CSI and  Chase  will  manage  all  aspects  of the  syndication  of the
Facilities,  including  decisions  as to the  selection  of  institutions  to be
approached  and when they will be  approached,  when their  commitments  will be
accepted,   which   institutions  will  participate,   the  allocations  of  the
commitments  among the Lenders and the amount and distribution of fees among the
Lenders in consultation  with you. To assist CSI and Chase in their  syndication
efforts,  you  agree  promptly  to  prepare  and  provide  to CSI and  Chase all
information with respect to WCAS, the Borrower, the Transactions


                                       2


<PAGE>


and the other  transactions  contemplated  hereby and to obtain the agreement of
Concentra  to prepare and provide all  information  with  respect to it, in each
case,  including all  reasonable  financial  information  and  projections  (the
"PROJECTIONS"),  as we may reasonably request in connection with the arrangement
and  syndication of the Facilities.  You hereby  represent and covenant that, to
your   knowledge,   (a)  all  information   other  than  the  Projections   (the
"INFORMATION")  that  has  been  or  will  be  made  available  to CSI  and  the
Underwriters  by  you or  any  of  your  representatives  is or  will  be,  when
furnished,  complete and correct in all  material  respects and does not or will
not, when furnished,  contain any untrue statement of a material fact or omit to
state a  material  fact  necessary  in order to make  the  statements  contained
therein not materially misleading in light of the circumstances under which such
statements  are  made and (b) the  Projections  that  have  been or will be made
available to CSI and the Underwriters by you or any of your representatives have
been or will be prepared in good faith based upon  assumptions  that you believe
in  good  faith  to be  reasonable.  CSI and the  Underwriters  understand  that
Concentra is not your  representative.  You  understand  that in  arranging  and
syndicating  the  Facilities  we  may  use  and  rely  on  the  Information  and
Projections without independent verification thereof.

         As consideration for the commitments of the Underwriters  hereunder and
the agreements of the Agents to perform the services described herein, you agree
to pay, and to cause the Borrower to pay,  the  nonrefundable  fees set forth in
Annex  I to  the  Term  Sheet  and  in  the  Underwriters  Fee  Letter  and  the
Administrative  Agent  Administration Fee Letter, each dated the date hereof and
delivered herewith (collectively, the "FEE LETTERS").

         CSI and Chase shall be entitled, after consultation with you, DLJ, CSFB
and Fleet to change  the  pricing,  terms,  structure  or  amounts of any of the
Facilities  if the  syndication  has not  been  completed  and if CSI and  Chase
reasonably  determine  that such  changes are  advisable  to ensure a successful
syndication  of the  Facilities;  provided  the total  amount of the  Facilities
remains unchanged.

         The  commitments  hereunder and the  agreements to perform the services
described  herein are subject to (a) there not occurring or becoming known to us
any material  adverse  condition or material  adverse change in or affecting the
business, operations,  property, condition (financial or otherwise) or prospects
of Concentra and its subsidiaries, taken as a whole since December 31, 1997, (b)
our not becoming aware after the date hereof of any  information or other matter
affecting Concentra, the Borrower or the transactions  contemplated hereby which
is  inconsistent  in a material and adverse manner with any such  information or
other  matter  disclosed  to us prior to the date  hereof,  (c) there not having
occurred a material  disruption  of or  material  adverse  change in  financial,
banking or capital  market  conditions  that,  in the judgment of CSI and Chase,
could  materially  impair  the  syndication  of  credit  facilities  similar  or
comparable to the Facilities,  (d) our satisfaction that prior to and during the
syndication of the Facilities there shall be no competing offering, placement or
arrangement  of any debt  securities or bank  financing by or on behalf of WCAS,
Concentra or the Borrower or any of their respective  affiliates (except for any
such debt securities as contemplated  hereby and for any debt securities or bank
financing by or on behalf of WCAS and its other  affiliates  as are  coordinated
with the syndication of the Facilities in consultation with CSI and Chase),  (e)
the negotiation, execution and delivery of definitive documentation with respect
to the Facilities  satisfactory to CSI, the  Underwriters  and their  respective
counsels, and the closing of the transactions thereunder and the Transactions on
or before August 31, 1999, and (f) the other conditions set forth or referred to
in the Term Sheet.

         You agree (a) to indemnify and hold harmless CSI, Chase,  DLJ, CSFB and
Fleet,  their respective  affiliates and their respective  officers,  directors,
employees, advisors, and agents (each, an "INDEMNIFIED person") from and against
any  and  all  losses,  claims,  damages  and  liabilities  to  which  any  such
indemnified  person may become subject arising out of or in connection with this
Commitment  Letter,  the  Facilities,  the  use of  the  proceeds  thereof,  the
Transactions  or  any  other  related  transaction  or  any  claim,  litigation,
investigation  or  proceeding  relating to any of the  foregoing,  regardless of
whether  any  indemnified  person  is a party  thereto,  and to  reimburse  each
indemnified  person  upon  demand  for any  reasonable  legal or other  expenses
incurred in connection  with  investigating  or defending any of the  foregoing,
PROVIDED that the foregoing  indemnity will not, as to any  indemnified  person,
apply to losses, claims, damages,  liabilities or related expenses to the extent
they are found by a final,  non-appealable judgment of a court to arise from the
willful  misconduct,  bad faith or gross negligence of such indemnified  person,
and (b) to  reimburse  CSI,  Chase,  DLJ,  CSFB and Fleet  and their  respective
affiliates on demand for all  reasonable  out-of-pocket  expense  (including due
diligence expense, syndication expenses,  consultant's fees and expenses, travel
expenses, and reasonable fees, charges and disbursements


                                       3


<PAGE>


of  counsel)  incurred  in  connection  with  the  Facilities  and  any  related
documentation (including this Commitment Letter, the Term Sheet, the Fee Letters
and the definitive  financing  documentation) or the administration,  amendment,
modification  or waiver thereof.  No indemnified  person shall be liable for any
damages  arising  from the use by  others  of  Information  (provided  that such
indemnified person is not in breach of the confidentiality provisions hereof) or
other  materials  obtained  through  electronic,   telecommunications  or  other
information transmissions systems or for any special, indirect, consequential or
punitive damages in connection with the Facilities.

         You  acknowledge  that we and our respective  affiliates (the term "we"
being  understood  to  refer  hereinafter  in this  paragraph  to  include  such
affiliates)  may be providing debt  financing,  equity capital or other services
(including  financial  advisory services) to other companies in respect of which
you may have conflicting  interests regarding the transactions  described herein
and otherwise.  We will not use  confidential  information  obtained from you by
virtue of the transactions  contemplated by this Commitment  Letter or our other
relationships  with you in connection with the performance by us of services for
other  companies,  and we  will  not  furnish  any  such  information  to  other
companies.  You also acknowledge that we have no obligation to use in connection
with the transactions  contemplated by this Commitment  Letter, or to furnish to
you, confidential information obtained from other companies.

         This  Commitment  Letter  shall not be  assignable  by any party hereto
without the prior written consent of the other parties hereto (and any purported
assignment  without  such  consent  shall be null and void),  is  intended to be
solely for the benefit of the parties  hereto and is not  intended to confer any
benefits  upon,  or create any  rights in favor of,  any  person  other than the
parties hereto. This Commitment Letter may not be amended or waived except by an
instrument in writing  signed by you,  CSI,  Chase,  DLJ,  CSFB and Fleet.  This
Commitment  Letter may be executed in any number of counterparts,  each of which
shall be an original,  and all of which,  when taken together,  shall constitute
one agreement.  Delivery of an executed signature page of this Commitment Letter
by facsimile  transmission shall be effective as delivery of a manually executed
counterpart  hereof.  This  Commitment  Letter and the Fee  Letters are the only
agreements  that have been entered into among us with respect to the  Facilities
and set forth the entire understanding of the parties with respect thereto. This
Commitment  Letter shall be governed by, and construed in accordance  with,  the
laws of the State of New York.

         This Commitment  Letter is delivered to you on the  understanding  that
neither  this  Commitment  Letter,  the Term Sheet or the Fee Letters nor any of
their terms or substance  shall be  disclosed,  directly or  indirectly,  to any
other person except (a) you may disclose this Commitment  Letter, the Term Sheet
and the Fee Letters (i) to your  officers,  agents and advisors who are directly
involved in the  consideration  of this matter or (ii) as may be  compelled in a
judicial or administrative proceeding or as otherwise required by law, including
public disclosures required under United States securities rules and regulations
(in which case you agree to inform us promptly thereof) and (b) you may disclose
this  Commitment  Letter and the Term Sheet,  and their terms and substance (but
not the Fee Letters or their terms and  substance) to  Concentra,  its officers,
agents and  advisors  who are  directly  involved  in the  consideration  of the
Transactions on a confidential basis.

         The compensation,  reimbursement,  indemnification  and confidentiality
provisions  contained  herein and in the Fee Letters  shall remain in full force
and effect regardless of whether  definitive  financing  documentation  shall be
executed and delivered and  notwithstanding  the  termination of this Commitment
Letter or the commitments hereunder;  PROVIDED, that your obligations under this
Commitment Letter,  other than those arising under the fourth,  fifth, sixth and
thirteenth paragraphs hereof, shall automatically terminate and be superseded by
the provisions of the definitive  documentation  relating to the Facilities upon
the initial funding thereunder,  and you shall automatically be release from all
liability in connection  therewith at such time. Subject to the foregoing,  this
Commitment Letter shall automatically terminate if the closing of the Facilities
shall not occur by reason of any condition described in clause (c) or (d) in the
ninth paragraph  hereof not being  satisfied or waived,  as of the date on which
the parties hereto mutually agree that such closing would otherwise occur.

         If the foregoing  correctly sets forth our agreement,  please  indicate
your acceptance of the terms hereof and of the Term Sheet and the Fee Letters by
returning  to us executed  counterparts  hereof and of the Fee Letters not later
than 8:00 p.m.,  New York City time, on February 26, 1999. The  commitments  and
the  agreements  herein  will  expire at such


                                       4


<PAGE>


time in the event Chase has not received  such  executed  counterparts  and such
amounts in accordance with the immediately preceding sentence.








                                       5


<PAGE>

         We are  pleased  to have been  given the  opportunity  to assist you in
connection with this important financing.

                                        Very truly yours,

                                        CHASE SECURITIES INC.

                                        By: /s/ JAMES A. FEELEY III
                                            ------------------------------------
                                        Name:        JAMES A. FEELEY III
                                              ----------------------------------
                                        Title:       VICE PRESIDENT
                                              ----------------------------------


                                        THE CHASE MANHATTAN BANK


                                        By: /s/ DEBORAH DAVEY
                                            ------------------------------------
                                        Name:        DEBORAH DAVEY
                                              ----------------------------------
                                        Title:       VICE PRESIDENT


                                        DLJ CAPITAL FUNDING, INC.


                                        By: /s/ JAMES L. PARADISE
                                            ------------------------------------
                                        Name:        JAMES L. PARADISE
                                              ----------------------------------
                                        Title:       SENIOR VICE PRESIDENT
                                              ---------------------------------


                                        CREDIT SUISSE FIRST BOSTON


                                        By: /s/ RICHARD CARY
                                            ------------------------------------
                                        Name:        RICHARD CARY
                                             -----------------------------------
                                        Title:       DIRECTOR
                                              ----------------------------------

                                        By: /s/ ARTURO DE PENA
                                            ------------------------------------
                                       Name:         ARTURO DE PENA
                                            ------------------------------------
                                       Title:        DIRECTOR
                                             -----------------------------------


                                        FLEET NATIONAL BANK


                                        By: /s/ JOHN E. DUNCAN
                                            ------------------------------------
                                        Name:        JOHN E. DUNCAN
                                             -----------------------------------
                                        Title:       MANAGING DIRECTOR
                                              ----------------------------------


                                       6


<PAGE>


Accepted and agreed to
as of the date first
written above by:



                                     WELSH, CARSON, ANDERSON & STOWE VIII, L.P.


                                         By:      WCAS VIII ASSOCIATES, L.L.C.,
                                                  its General Partner

                                         By: /s/ ANDREW M. PAUL
                                             -----------------------------------
                                         Name:        ANDREW M. PAUL
                                              ----------------------------------
                                         Title:       MEMBER


                                       7


<PAGE>


                                                                       Exhibit A

                        SENIOR SECURED CREDIT FACILITIES

                         Summary of Terms and Conditions

                                February 26, 1999

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

         Welsh,  Carson,   Anderson  &  Stowe  VIII,  L.P.,  together  with  its
affiliates (collectively,  "WCAS") will form a new corporation ("NEWCO") for the
purpose of  effecting  the  recapitalization  (the  "ACQUISITION")  of Concentra
Managed Care, Inc.  ("CONCENTRA").  The Acquisition will be effected by a merger
of Newco with and into Concentra,  as a result of which WCAS will own 93% of the
common stock of  Concentra  and the  existing  stockholders  will own 7% of such
common stock.  The existing  stockholders  of Concentra,  other than WCAS,  will
receive cash  consideration  in exchange for the remainder of their common stock
in Concentra. Alternatively, in the event that WCAS and Concentra so agree, WCAS
will form a new corporation ("NEWCO I") and other investors selected by WCAS and
satisfactory to the Underwriters (collectively,  the "OTHER INVESTOR") will form
a new corporation  ("NEWCO II"), and the Acquisition will be effected by Newco I
and Newco II being merged with and into Concentra, as a result of which WCAS and
the Other  Investor  will own 93% and 7%,  respectively,  of the common stock of
Concentra and the other existing stockholders of Concentra will receive cash for
all their  existing  common stock of Concentra.  For purposes  hereof,  any such
alternate  transaction (the "ALTERNATE  TRANSACTION") is also referred to as the
"Acquisition." Immediately after the Acquisition, Concentra will contribute (the
"CONTRIBUTION")   all  of  its  assets,   including  the  stock  of  its  direct
subsidiaries,  to a newly created wholly-owned  subsidiary (the "BORROWER").  In
connection with the Acquisition and the Contribution, approximately $328,000,000
of the existing indebtedness of Concentra will be refinanced (the "REFINANCING";
together with the Acquisition and the Contribution, the "TRANSACTIONS").

I.       PARTIES

Concentra:                       Concentra Managed Care, Inc.

Borrower:                        A newly  created,  wholly  owned-subsidiary  of
                                 Concentra    as    referred   to   above   (the
                                 "BORROWER").

Guarantors:                      All  obligations  of  the  Borrower  under  the
                                 Senior  Secured  Credit  Facility  and  hedging
                                 arrangements  entered into with the Lenders (as
                                 defined  below) and their  affiliates  shall be
                                 unconditionally  guaranteed  by  Concentra  and
                                 each  of the  Borrower's  direct  and  indirect
                                 wholly-owned  subsidiaries  (the  "GUARANTORS";
                                 the Borrower and the Guarantors,  collectively,
                                 the "LOAN PARTIES").

Advisor, Co-Lead Arranger
and Joint Book Manager:          Chase  Securities  Inc.  ("CSI"  and,  in  such
                                 capacity, a "CO-LEAD ARRANGER").

Administrative Agent:            The Chase  Manhattan Bank ("CHASE" and, in such
                                 capacity, the "ADMINISTRATIVE  AGENT").


Co-Lead Arranger, Joint Book
Manager and Syndication Agent:   DLJ  Capital  Funding,  Inc.  ("DLJ")  (in such
                                 capacity, the "SYNDICATION AGENT" or a "CO-LEAD
                                 ARRANGER";  together  with  the  Administrative
                                 Agent, the "AGENTS").


                                       1


<PAGE>



Co-Documentation Agents:         Credit  Suisse First Boston  ("CSFB") and Fleet
                                 National Bank ("FLEET"; each, in such capacity,
                                 a "CO-DOCUMENTATION AGENT").

Lenders:                         A syndicate  of banks,  financial  institutions
                                 and other entities,  including Chase, DLJ, CSFB
                                 and  Fleet,  to be  arranged  by  CSI  and  the
                                 Administrative  Agent in consultation  with the
                                 Borrower (the "LENDERS").

II.      TYPES AND AMOUNTS OF CREDIT FACILITIES

1.       TERM FACILITIES

Type and Amount of Facility:     Term loan facilities (the "TERM FACILITIES") in
                                 the aggregate  principal amount of $375,000,000
                                 (the  loans  thereunder,  the "TERM  LOANS") as
                                 follows:

                                 TRANCHE B TERM FACILITY: A seven year term loan
                                 facility to the Borrower  (the  "TRANCHE B TERM
                                 FACILITY") in an aggregate  principal amount of
                                 $250,000,000   (the   loans   thereunder,   the
                                 "TRANCHE  B TERM  LOANS").  The  Tranche B Term
                                 Loans shall be repayable  in nominal  quarterly
                                 installments  (in no  event  more  than  1% per
                                 annum)  for the first six years and  thereafter
                                 in  substantial  quarterly  installments  to be
                                 determined  until the date that is seven  years
                                 after the Closing Date.

                                 TRANCHE  C TERM  FACILITY:  An eight  year term
                                 loan  facility to the Borrower  (the "TRANCHE C
                                 TERM  FACILITY")  in  an  aggregate   principal
                                 amount of $125,000,000  (the loans  thereunder,
                                 the "TRANCHE C TERM LOANS"). The Tranche C Term
                                 Loans shall be repayable  in nominal  quarterly
                                 installments  (in no  event  more  than  1% per
                                 annum) for the first seven years and thereafter
                                 in  substantial  quarterly  installments  to be
                                 determined  until the date that is eight  years
                                 after the Closing Date.

Availability:                    The  Term  Loans  shall  be  made  in a  single
                                 drawing on the Closing Date (as defined below).

Purpose:                         The proceeds of the Term Loans shall be used to
                                 finance  the  Transactions  and to pay  related
                                 fees and expenses.

2.   REVOLVING FACILITY

Type and Amount of Facility:     Six-year   revolving   credit   facility   (the
                                 "REVOLVING  FACILITY";  together  with the Term
                                 Facilities,  the  "CREDIT  FACILITIES")  in the
                                 amount of $100,000,000  (the loans  thereunder,
                                 the "REVOLVING  LOANS";  together with the Term
                                 Loans, the "LOANS").

Availability:                    The Revolving Facility shall be fully available
                                 on  a   revolving   basis   during  the  period
                                 following  the  Closing  Date and ending on the
                                 sixth   anniversary   thereof  (the  "REVOLVING
                                 TERMINATION DATE"). No Revolving Loans shall be
                                 made on the Closing Date.

Letters of Credit:               A  portion  of the  Revolving  Facility  not in
                                 excess of an amount to be  determined  shall be
                                 available for the issuance of letters of credit
                                 (the  "LETTERS  OF  CREDIT")  by Chase (in such
                                 capacity,  the "ISSUING LENDER").  No


                                       2


<PAGE>


                                 Letter of Credit shall have an expiration  date
                                 after  the  earlier  of (a) one year  after the
                                 date of  issuance  (unless  approved by Lenders
                                 holding   not  less  than  a  majority  of  the
                                 Revolving  Facility) and (b) five business days
                                 prior  to  the  Revolving   Termination   Date,
                                 PROVIDED  that  any  Letter  of  Credit  with a
                                 one-year  term  may  provide  for  the  renewal
                                 thereof for additional  one-year periods (which
                                 shall  in  no  event  extend  beyond  the  date
                                 referred to in clause (b) above).

                                 Drawings  under any  Letter of Credit  shall be
                                 reimbursed  by the Borrower  (whether  with its
                                 own funds or with the proceeds of the Revolving
                                 Loans) on the next  business day. To the extent
                                 that the  Borrower  does not so  reimburse  the
                                 Issuing Lender, the Lenders under the Revolving
                                 Facility    shall    be     irrevocably     and
                                 unconditionally   obligated  to  reimburse  the
                                 Issuing Lender on a PRO RATA basis.

Maturity:                        The Revolving Termination Date.

Purpose:                         The  proceeds of the  Revolving  Loans shall be
                                 used to finance the working  capital  needs and
                                 for general corporate  purposes of the Borrower
                                 and its  subsidiaries,  including  acquisitions
                                 and  investments in other  entities  subject to
                                 restrictions and limitations to be determined.

III.     CERTAIN PAYMENT PROVISIONS

Fees and Interest Rates:         As set forth on Annex I.

Optional Prepayments and
Commitment Reductions:           Loans may be  prepaid  and  commitments  may be
                                 reduced by the  Borrower in minimum  amounts to
                                 be agreed  upon.  Optional  prepayments  of the
                                 Term Loans  shall be  applied to the  Tranche B
                                 Loans and the  Tranche C Loans  ratably  and to
                                 the  installments  thereof  in an  order  to be
                                 determined and may not be reborrowed.

Mandatory Prepayments and
Commitment Reductions:           The  following  amounts  shall  be  applied  to
                                 prepay the Term Loans and reduce the  Revolving
                                 Facility:

                                 (a)  50% of the  net  proceeds  of any  sale or
                                 issuance of equity  after the  Closing  Date by
                                 Concentra  or the  Borrower  (excluding  equity
                                 issued to directors and employees under benefit
                                 plans,    equity    issued   to    sellers   as
                                 consideration in acquisitions and equity issued
                                 to the existing shareholders of Concentra or in
                                 a private  placement to  investors  arranged by
                                 WCAS to finance acquisitions);

                                 (b) 100% of the net proceeds of any  incurrence
                                 of  certain   indebtedness   (excluding  Senior
                                 Subordinated  Notes (as defined  below) the net
                                 proceeds  of which  are used to  refinance  the
                                 Senior  Subordinated  Bridge  Debt (as  defined
                                 below))  after the Closing Date by Concentra or
                                 the Borrower or any of their subsidiaries;


                                       3


<PAGE>


                                 (c)  100% of the net  proceeds  of any  sale or
                                 other  disposition  (other  than as a result of
                                 casualty or  condemnation  where such  proceeds
                                 are used to  repair or  replace  assets up to a
                                 maximum  amount to be  determined) by Concentra
                                 or the Borrower or any of their subsidiaries of
                                 any assets (except for the sale of inventory in
                                 the  ordinary  course of  business  and certain
                                 other  exceptions to be agreed upon and subject
                                 to threshold and limitations to be determined);
                                 and

                                 (d) 50% of excess cash flow (to be defined in a
                                 mutually  satisfactory  manner) for each fiscal
                                 year of the Borrower  commencing with the first
                                 full fiscal year after the Closing Date).

                                 All such amounts  shall be applied,  FIRST,  to
                                 the  prepayment of the Term Loans and,  SECOND,
                                 to the  permanent  reduction  of the  Revolving
                                 Facility.  Each  such  prepayment  of the  Term
                                 Loans  shall be applied  to the  Tranche B Term
                                 Loans and the Tranche C Term Loans  ratably and
                                 to the  installments  thereof in an order to be
                                 determined  and  may  not  be  reborrowed.  The
                                 Revolving Loans shall be prepaid and the Letter
                                 of  Credit  shall  be  cash  collateralized  or
                                 replaced  to  the  extent  such  extensions  of
                                 credit  exceed  the  amount  of  the  Revolving
                                 Facility.

IV.   COLLATERAL                 The  obligations  of each Loan Party in respect
                                 to   the   Credit    Facilities   and   heading
                                 arrangements  entered into with the Lenders and
                                 their   affiliates   shall  be   secured  by  a
                                 perfected first priority  security  interest in
                                 substantially   all   of   its   tangible   and
                                 intangible    assets    (including,     without
                                 limitation,    intellectual   property,    real
                                 property  and all of the capital  stock of each
                                 of  its  direct  and  indirect   subsidiaries),
                                 excluding  assets subject to certain  permitted
                                 liens and rights under non-assignable contracts
                                 of types to be agreed upon.

V.    CERTAIN CONDITIONS

Initial Conditions:              The availability of the Credit Facilities shall
                                 be  conditioned  upon  satisfaction  of,  among
                                 other   things,   the   following    conditions
                                 precedent   (the  date  upon   which  all  such
                                 conditions  precedent  shall be satisfied,  the
                                 "CLOSING DATE");

                                 (a) Each Loan  Party  shall have  executed  and
                                 delivered  satisfactory   definitive  financing
                                 documentation   with   respect  to  the  Credit
                                 Facilities (the "CREDIT DOCUMENTATION").

                                 (b)  Newco   shall  have   received   at  least
                                 $347,600,000 in cash and Concentra  shares from
                                 the issuance of its common stock (which  amount
                                 includes the cash purchase  price for shares in
                                 Newco purchased by WCAS and the value of shares
                                 already owned by WCAS and contributed to Newco,
                                 each as set forth in the Sources and Uses Table
                                 in Annex II hereto) on  satisfactory  terms and
                                 conditions.  The existing  stockholders  (other
                                 than WCAS)  will own 7% of the common  stock of
                                 Concentra after the Acquisition with a value of
                                 approximately $30,600,000. Concentra shall have
                                 received   at  least   $110,200,000   from  the
                                 issuance  of  its  senior  unsecured  notes  on
                                 satisfactory  terms and  conditions  (including
                                 that the interest  thereon  shall be payable in
                                 kind for at least the first five years


                                       4


<PAGE>


                                 following  the  Closing  Date) (the  "CONCENTRA
                                 NOTES"),   each  on   satisfactory   terms  and
                                 conditions,   and  the   Borrower   shall  have
                                 received   at  least   $190,000,000   from  the
                                 issuance of senior  subordinated bridge debt to
                                 an  affiliate  of  WCAS  and  other   investors
                                 arranged by it (the "SENIOR SUBORDINATED BRIDGE
                                 DEBT") on satisfactory  terms and conditions or
                                 its  senior   subordinated  debt  (the  "SENIOR
                                 SUBORDINATED   NOTES"),   issued  in  a  public
                                 offering  or under  Rule  144A on  satisfactory
                                 terms and conditions. The ownership and capital
                                 structure   of  each  Loan   Party   after  the
                                 Transactions; and the terms applicable thereto,
                                 shall  be   reasonably   satisfactory   in  all
                                 respects.

                                 (c)   The   Transactions    shall   have   been
                                 consummated  in a  manner  consistent  with the
                                 Sources  and Uses  Table  attached  as Annex II
                                 hereto and pursuant to reasonably  satisfactory
                                 documentation,   and  no   provision   of  such
                                 documentation shall have been waived,  amended,
                                 supplemented  or  otherwise   modified  in  any
                                 material    respect.    Concentra    and    its
                                 subsidiaries  shall  not have any  indebtedness
                                 (other than  immaterial  indebtedness  on terms
                                 and    conditions     satisfactory    to    the
                                 Administrative  Agent)  immediately prior to or
                                 immediately  after the Closing  Date other than
                                 the Concentra  Notes,  the Senior  Subordinated
                                 Notes and the Loans and indebtedness refinanced
                                 as contemplated on such Sources and Uses Table.

                                 (d) The  Lenders,  the Co-Lead  Arrangers,  the
                                 Co-Documentation  Agents and the  Agents  shall
                                 have received all fees required to be paid, and
                                 all expenses  required to be reimbursed and for
                                 which  invoices  have  been  presented,  on  or
                                 before the Closing Date.

                                 (e) All  governmental and third party approvals
                                 necessary   or,  in  the   discretion   of  the
                                 Administrative  Agent,  advisable in connection
                                 with   the    Transactions,    the   financings
                                 contemplated    hereby   and   the   continuing
                                 operations of Concentra, the Borrower and their
                                 subsidiaries shall have been obtained and be in
                                 full  force  and  effect,  and  all  applicable
                                 waiting  periods shall have expired without any
                                 action  being  taken  or   threatened   by  any
                                 competent   authority   that  would   restrain,
                                 prevent or otherwise impose materially  adverse
                                 conditions   on   the   Transactions   or   the
                                 financings thereof.

                                 (f)  The  Lenders   shall  have   received  (i)
                                 satisfactory  audited  consolidated   financial
                                 statements  of  Concentra  for its fiscal  year
                                 ended   December  31,  1998  and   satisfactory
                                 unaudited  consolidating  (on a  business  unit
                                 basis)  financial  statements  of Concentra for
                                 such   fiscal   year  and   (ii)   satisfactory
                                 unaudited     interim      consolidated     and
                                 consolidating   (on  a  business   unit  basis)
                                 financial  statements  of  Concentra  for  each
                                 quarterly  period  and  satisfactory  unaudited
                                 interim  consolidated  financial  statements of
                                 Concentra   for  each   fiscal   month,   ended
                                 subsequent  to December 31,  1998,  as to which
                                 such financial statements are available.

                                 (g) Concentra  shall have  consolidated  EBITDA
                                 for the twelve  months  ending  with the fiscal
                                 quarter most  recently  completed  prior to the
                                 Closing  Date  of not  less  than  $107,500,000
                                 (calculated   in  a  manner   consistent   with
                                 discussions  between  WCAS and CSI prior to the
                                 date hereof).


                                       5


<PAGE>


                                 (h)  The   Lenders   shall   have   received  a
                                 satisfactory  PRO  FORMA  consolidated  balance
                                 sheet of each of Concentra  and the Borrower as
                                 at the  date of the  most  recent  consolidated
                                 balance sheet  delivered  pursuant to paragraph
                                 (f)  above,  adjusted  to  give  effect  to the
                                 consummation  of  the   Transactions   and  the
                                 financings   contemplated  hereby  as  if  such
                                 transactions had occurred on such date.

                                 (i)   The   Lenders    shall   have    received
                                 satisfactory financial information and analyses
                                 for   Concentra  and  the  Borrower  and  their
                                 subsidiaries  for the period  from the  Closing
                                 Date  through  the final  maturity  of the Term
                                 Loans.

                                 (j) The Lenders shall have received the results
                                 of  a  recent  lien  search  in  each  relevant
                                 jurisdiction  with  respect to  Concentra,  the
                                 Borrower  and  their  subsidiaries,   and  such
                                 search  shall  reveal  no  liens  on any of the
                                 assets  of  Concentra,  the  Borrower  or their
                                 subsidiaries  except for liens permitted by the
                                 Credit  Documentation or liens to be discharged
                                 on or prior to the  Closing  Date  pursuant  to
                                 documentation      satisfactory      to     the
                                 Administrative Agent.

                                 (k) The fees and  expenses  to be  incurred  in
                                 connection  with  the   Transactions   and  the
                                 financing thereof shall not exceed  $45,000,000
                                 in the aggregate.

                                 (l) The Agents  shall be  reasonably  satisfied
                                 with  the  liability  and  casualty   insurance
                                 applicable to the Borrower and its subsidiaries
                                 on the Closing  Date,  with  respect to periods
                                 before and after the Closing Date.

                                 (m)  The   Lenders   shall   have   received  a
                                 satisfactory    solvency    opinion   from   an
                                 independent     valuation    firm    reasonably
                                 satisfactory to the  Administrative  Agent that
                                 shall  document the  solvency of Concentra  and
                                 the  Borrower (on a  consolidated  basis) after
                                 giving effect to the Transactions and the other
                                 transactions contemplated hereby.

                                 (n) The Lenders  shall have received such legal
                                 opinions  (including  opinions (i) from counsel
                                 to the  Borrower  and  its  subsidiaries,  (ii)
                                 delivered  to Newco by  counsel  to  Concentra,
                                 accompanied by reliance letters in favor of the
                                 Lenders as reasonable  available and (iii) from
                                 such  special  and  local  counsel  as  may  be
                                 required   by   the   Administrative    Agent),
                                 consultants'  reports  and  opinions  and  such
                                 other   documents   and   instruments   as  are
                                 customary for  transactions  of this type or as
                                 they may reasonably request.

On-Going Conditions:             The making of each extension of credit shall be
                                 conditioned   upon  (a)  the  accuracy  of  all
                                 representations  and  warranties  in the Credit
                                 Documentation  (including,  without limitation,
                                 the  material  adverse  change  and  litigation
                                 representations) and (b) there being no default
                                 or event of  default in  existence  at the time
                                 of, or after  giving  effect to the  making of,
                                 such extension of credit. As used herein and in
                                 the Credit  Documentation  a "material  adverse
                                 change"  shall mean any event,  development  or
                                 circumstance  that has had or could  reasonably
                                 be expected to have a material  adverse  affect
                                 on (a)  the  Transactions,  (b)  the  business,
                                 property,


                                       6


<PAGE>


                                    operations,    condition    (financial    or
                                    otherwise)  or prospects of the Borrower and
                                    its subsidiaries taken as a whole or (c) the
                                    validity  or  enforceability  of  any of the
                                    Credit Documentation.

VI.   CERTAIN DOCUMENTATION MATTERS

                                    The  Credit   Documentation   shall  contain
                                    representations,  warranties,  covenants and
                                    events of default  customary for  financings
                                    of  this   type  and  other   terms   deemed
                                    appropriate   by  the  Lenders,   including,
                                    without limitation:

Representations  and  Warranties:   Financial  statements  (including  pro forma
                                    financial  statements);  absence of material
                                    undisclosed liabilities; no material adverse
                                    change; corporate existence; compliance with
                                    law;    corporate   power   and   authority;
                                    enforceability of Credit  Documentation;  no
                                    conflict  with law or  material  contractual
                                    obligations;   no  material  litigation;  no
                                    default;   ownership  of  property;   liens;
                                    intellectual     property;    no    material
                                    burdensome   restrictions;   taxes;  Federal
                                    Reserve   regulations;   ERISA;   Investment
                                    Company  Act;  subsidiaries;   environmental
                                    matters;  solvency; labor matters;  material
                                    year 2000 matters; accuracy of disclosure in
                                    all   material    respects;    adequacy   of
                                    insurance;  and creation and  perfection  of
                                    security interests.

Affirmative Covenants:              Delivery of financial  statements,  reports,
                                    accountants' letters, projections, officers'
                                    certificates    and    other     information
                                    reasonably requested by the Lenders; payment
                                    of other material obligations;  continuation
                                    of business and maintenance of existence and
                                    material rights and  privileges;  compliance
                                    with   laws   and    material    contractual
                                    obligations;  maintenance  of  property  and
                                    insurance; maintenance of books and records;
                                    right of the Lenders to inspect property and
                                    books  and  records;  notices  of  defaults;
                                    litigation   and  other   material   events;
                                    compliance  in all  material  respects  with
                                    environmental   laws;   further   assurances
                                    (including, without limitation, with respect
                                    to  security   interests  in  after-acquired
                                    capital  stock);  and  an  agreement  by the
                                    Borrower  to obtain,  following  the Closing
                                    Date,  interest  rate  protection in amounts
                                    and   on   terms    satisfactory    to   the
                                    Administrative Agent.

Financial Covenants:                Financial  covenants   (including,   without
                                    limitation,   minimum   interest  and  fixed
                                    charge coverage and maximum leverage).

Negative Covenants:                 Limitations on (with exceptions to be agreed
                                    upon with respect to): indebtedness;  liens;
                                    guarantee       obligations;        mergers,
                                    consolidations,       liquidations       and
                                    dissolutions;   sales  of  assets;   leases;
                                    dividends  and other  payments in respect of
                                    capital   stock;    capital    expenditures;
                                    investments,  loans and  advances;  optional
                                    payments and  modifications  of subordinated
                                    and  other  debt  instruments;  transactions
                                    with   affiliates;   sale  and   leasebacks;
                                    changes  in  fiscal  year;  negative  pledge
                                    clauses;  changes in lines of business;  and
                                    changes  after the  Closing  Date in passive
                                    holding  company  status of  Concentra.  The
                                    dividend  covenant shall permit dividends to
                                    be paid by the Borrower to enable  Concentra
                                    to  pay  interest  on  the  Concentra  Notes
                                    following  the  fifth   anniversary  of  the
                                    Closing Date,  subject to the achievement of
                                    performance  or  financial  criteria  to  be
                                    determined.


                                       7


<PAGE>


Events of Default:                  Nonpayment of principal when due; nonpayment
                                    of interest,  fees or other  amounts after a
                                    grace  period  to be agreed  upon;  material
                                    inaccuracy    of     representations     and
                                    warranties; violation of covenants (subject,
                                    in   the   case   of   certain   affirmative
                                    covenants,  to a grace  period  to be agreed
                                    upon); cross-default (subject to a threshold
                                    to  be  agreed  upon);   bankruptcy  events;
                                    certain  ERISA events;  material  judgments;
                                    actual  or   asserted   invalidity   of  any
                                    guarantee     or     security      document,
                                    subordination    provisions    or   security
                                    interest;  and  a  change  of  control  (the
                                    definition of which is to be agreed).

Voting:                             Amendments  and waivers  with respect to the
                                    Credit   Documentation   shall  require  the
                                    approval of Lenders  holding not less than a
                                    majority  of  the  aggregate  amount  of the
                                    Credit  Facilities,   except  that  (a)  the
                                    consent  of each  Lender  directly  affected
                                    thereby  shall be required  with  respect to
                                    (i)  reductions  in the amount or extensions
                                    of the  scheduled  date of  amortization  or
                                    final maturity of any Loan,  (ii) reductions
                                    in  the  rate  of  interest  or  any  fee or
                                    extensions of any due date thereof and (iii)
                                    increases in the amount or extensions of the
                                    expiry date of any Lender's  commitment  and
                                    (b) the consent of 100% of the Lenders shall
                                    be    required    with    respect   to   (i)
                                    modifications   to   any   of   the   voting
                                    percentages  and  (ii)  releases  of  all or
                                    substantially  all of the  Guarantors or all
                                    or substantially all of the collateral.

Assignments and  Participations:    The Lenders shall be permitted to assign and
                                    sell   participations  in  their  Loans  and
                                    commitments,   subject,   in  the   case  of
                                    assignments (other than to another Lender or
                                    to an affiliate of a Lender), to the consent
                                    of the Administrative Agent and the Borrower
                                    (which  consent  in each  case  shall not be
                                    unreasonably    withheld).    Non-pro   rata
                                    assignments shall be permitted.  In the case
                                    of  partial   assignments   (other  than  to
                                    another  Lender  or  to  an  affiliate  of a
                                    Lender), the minimum assignment amount shall
                                    be $5,000,000 unless otherwise agreed by the
                                    borrower  and  the   Administrative   Agent.
                                    Participants shall have the same benefits as
                                    the Lenders with respect to yield protection
                                    and increased cost provisions. Voting rights
                                    of  participants  shall be  limited to those
                                    matters    with   respect   to   which   the
                                    affirmative vote of the Lender from which it
                                    purchased   its   participation   would   be
                                    required as described  under "Voting" above.
                                    Pledges   of   Loans  in   accordance   with
                                    applicable  law shall be  permitted  without
                                    restriction.   Promissory   notes  shall  be
                                    issued under the Credit Facilities only upon
                                    request.

Yield Protection:                   The  Credit   Documentation   shall  contain
                                    customary   provisions  (a)  protecting  the
                                    Lenders  against  increased costs or loss of
                                    yield  resulting  from  changes in  reserve,
                                    tax, capital adequacy and other requirements
                                    of law and from the imposition of or changes
                                    in   withholding  or  other  taxes  and  (b)
                                    indemnifying   the  Lenders  for   "breakage
                                    costs"  incurred in connection  with,  among
                                    other things, any prepayment of a Eurodollar
                                    Loan on a day other  than the last day of an
                                    interest period with respect  thereto,  with
                                    the  foregoing  subject  to the right of the
                                    Borrower  to  replace  any  Lender  who  has
                                    incurred material increased costs.

Expenses and  Indemnification:      The  Borrower  shall pay (a) all  reasonable
                                    out-of-pocket expenses of the Administrative
                                    Agent  and  the   Co-Lead   Arrangers,   the
                                    Syndication  Agent


                                       8


<PAGE>


                                    and the  Co-Documentation  Agents associated
                                    with   the   syndication   of   the   Credit
                                    Facilities and the  preparation,  execution,
                                    delivery  and  administration  of the Credit
                                    Documentation  and any  amendment  or waiver
                                    with   respect   thereto    (including   the
                                    reasonable  fees,  disbursements  and  other
                                    charges    of    counsel)    and   (b)   all
                                    out-of-pocket expenses of the Administrative
                                    Agent  and  the   Lenders   (including   the
                                    reasonable  fees,  disbursements  and  other
                                    charges of counsel) in  connection  with the
                                    enforcement of the Credit Documentation.

                                    The   Administrative   Agent,   the  Co-Lead
                                    Arrangers,   the  Syndication   Agent,   the
                                    Co-Documentation Agents and the Lenders (and
                                    their   affiliates   and  there   respective
                                    officers, directors, employees, advisors and
                                    agents) will have no liability for, and will
                                    be  indemnified  and held harmless  against,
                                    any losses, claims, damages,  liabilities or
                                    expenses   incurred   in   respect   of  the
                                    financing  contemplated hereby or the use or
                                    the proposed use of proceeds thereof, except
                                    to the  extent  they  are  found by a final,
                                    non-appealable  judgment of a court to arise
                                    from  the  gross   negligence   or   willful
                                    misconduct of the indemnified party.

Governing Law and Forum:            State of New York.

Counsel to the Administrative

Agent and CSI:                      Simpson Thacher & Bartlett.





                                       9


<PAGE>


                                                                         ANNEX I


                                      INTEREST AND CERTAIN FEES

Interest Rate Options:              The   Borrower  may  elect  that  the  Loans
                                    comprising each borrowing bear interest at a
                                    rate per annum equal to:

                                         the  ABR plus the Applicable Margin; or

                                         the Eurodollar Rate plus the Applicable
                                         Margin.

                                    As used herein:

                                    "ABR"  means the  highest of (i) the rate of
                                    interest publicly  announced by Chase as its
                                    prime rate in effect at its principal office
                                    in New York City (the "PRIME RATE") and (ii)
                                    the federal funds  effective  rate from time
                                    to time PLUS 0.5%.

                                    "APPLICABLE MARGIN" means (a) in the case of
                                    ABR  Loans  (as  defined  below),  2.25% for
                                    Tranche B Term  Loans,  2.50% for  Tranche C
                                    Term Loans,  and 1.75% for Revolving  Loans,
                                    and (b) in the case of Eurodollar  Loans (as
                                    defined  below),  3.25%  for  Tranche B Term
                                    Loans,  3.50% for Tranche C Term Loans,  and
                                    2.75% for Revolving  Loans.  The  Applicable
                                    Margins for Revolving Loans shall be subject
                                    to reduction following the first anniversary
                                    of the  Closing  Date in  accordance  with a
                                    pricing grid based on leverage  levels to be
                                    determined  and  provided  that no  event of
                                    default has occurred and is continuing.

                                    "EURODOLLAR  RATE" means the rate  (adjusted
                                    for  statutory   reserve   requirements  for
                                    eurocurrency   liabilities)  for  eurodollar
                                    deposits  for a period  equal  to one,  two,
                                    three  or six  months  (as  selected  by the
                                    Borrower)  appearing on Page 3750 of the Dow
                                    Jones Markets screen.

Interest Payment Dates:             In the case of Loans bearing  interest based
                                    upon the ABR  ("ABR  Loans"),  quarterly  in
                                    arrears.

                                    In the case of Loans bearing  interest based
                                    upon  the   Eurodollar   Rate   ("EURODOLLAR
                                    LOANS"),  on the last  day of each  relevant
                                    interest  period  and,  in the  case  of any
                                    interest period longer than three months, on
                                    each  successive date three months after the
                                    first day of such interest period.

Commitment Fees:                    The  Borrower  shall  pay a  commitment  fee
                                    calculated  at the rate of _ of 1% per annum
                                    on the average  daily unused  portion of the
                                    Revolving  Facility,  payable  quarterly  in
                                    arrears.

Letter of Credit Fees:              The   Borrower   shall  pay  a  fee  on  all
                                    outstanding Letters of Credit at a per annum
                                    rate equal to the Applicable  Margin then in
                                    effect with respect to  Eurodollar  Loans on
                                    the  average  daily  undrawn  face amount of
                                    each such  Letter of Credit.  Such fee shall
                                    be  shared   ratably   among   the   Lenders
                                    participating in the Revolving  Facility and
                                    shall be payable quarterly in arrears.


                                       1


<PAGE>


                                    A fronting  fee equal to 0.125% per annum on
                                    the  average  daily  undrawn  face amount of
                                    each  Letter  of  Credit  shall  be  payable
                                    quarterly  in arrears to the Issuing  Lender
                                    for its own account. In addition,  customary
                                    administrative, issuance, amendment, payment
                                    and negotiation  charges shall be payable to
                                    the Issuing Lender for its own account.

Default Rate:                       At any time when the  Borrower is in default
                                    in the  payment of any  amount of  principal
                                    due  under  the   Credit   Facilities,   all
                                    outstanding  Loans shall bear interest at 2%
                                    above the rate otherwise applicable thereto.
                                    Overdue  interest,  fees and  other  amounts
                                    shall  bear  interest  at 2% above  the rate
                                    applicable to ABR Loans.

Rate and Fee Basis:                 All per annum rates shall be  calculated  on
                                    the basis of a year of 360 days (or  365/366
                                    days,  in the case of ABR Loans the interest
                                    rate  payable  on which is then based on the
                                    Prime Rate) for actual days elapsed.





                                       2



                                 EXHIBIT (A)(2)

                             CHASE CAPITAL PARTNERS
                         380 Madison Avenue, 12th Floor
                            New York, New York 10017

                                February 24, 1999


Welsh, Carson, Anderson & Stowe
320 Park Avenue
Suite 2500
New York, New York  10022

                          CONCENTRA MANAGED CARE, INC.

Ladies and Gentlemen:

         You have advised Chase Capital  Partners  (together with one or more of
its  affiliated   investment   entities,   "CCP")  that  a  group  of  investors
(collectively,  the "Investors") led by Welsh, Carson, Anderson & Stowe ("WCAS")
intends  to effect a  leveraged  recapitalization  (the  "Recapitalization")  of
Concentra Managed Care, Inc. (together with its subsidiaries, the "Company"). We
understand  that  you  will  form a  company  ("Newco")  that  will  effect  the
Recapitalization  of the Company.  You have also  advised us that in  connection
with the Recapitalization,  Newco and the Company will raise gross cash proceeds
of  approximately  $1.1 billion from,  among other  things,  the issuance by the
Company of $89,600,000  aggregate principal amount of 10 year pay-in-kind senior
unsecured  Notes ("PIK  Notes"),  together with common stock (the "Common Stock"
and, together with the PIK Notes, the "Investment").

         Based  upon  what  CCP  has  learned  to date in  connection  with  the
foregoing, CCP is pleased to advise you of CCP's strong interest to purchase (i)
up to fifty percent  (50%) of the principal  amount of the PIK Notes and (ii) up
to $20,000,000 Common Stock of the Company, generally upon the terms and subject
to the  conditions  set forth or referred to in this letter (the  "Letter").  We
understand that the remainder of the $89,600,000  aggregate  principal amount of
PIK  Notes  will be  purchased  by one or  more  affiliates  of  WCAS  or  other
purchasers  satisfactory  to CCP. We understand  that CCP would be acquiring the
PIK Notes and Common Stock on the same terms and conditions as WCAS.

         Our interest in purchasing the PIK Notes and Common Stock is based upon
among other things,  our  understanding  that (a) all written  reports and other
information  with  respect  to  Newco,  the  Company  and  the  Recapitalization
(collectively, the "Information"),  other than the projections


                                       1


<PAGE>
Welsh, Carson, Anderson & Stowe
Page 2


contained therein (the "Projections"),  that have been or will be made available
to CCP by you or any of your  representatives  are or will be,  when  furnished,
complete  and  correct in all  material  respects  and do not or will not,  when
furnished,  contain any untrue  statement  of  material  fact or omit to state a
material fact  necessary in order to make the statements  contained  therein not
misleading in light of the  circumstances  under which such  statements are made
and (b) the  Projections  that have been or will be made available to CCP by you
or any of your  representatives  have been or will be prepared in good faith and
based upon reasonable  assumptions at the time made. We further  understand that
you will supplement the Information and the Projections  from time to time until
the date of the  issuance  of the PIK  Notes so that  our  understanding  in the
preceding sentence  continues to be correct in all material respects.  You agree
that CCP will be  entitled  to use and rely  primarily  on the  Information  and
Projections without responsibility for independent verification thereof.

         CCP's  interest in the Investment is subject to, among other things (a)
there not having occurred any material  adverse change in the business,  assets,
operations,   properties   condition   (financial  or   otherwise),   contingent
liabilities,  prospects  or material  agreements  of Newco or the Company  since
December  31,  1998,  (b) CCP not  becoming  aware  after the date hereof of any
information  or  other  matter   affecting  the  Company  or  the   transactions
contemplated  hereby which is inconsistent in a material and adverse manner with
any such  information or other matter  disclosed to us prior to the date hereof,
(c) CCP's  reasonable  satisfaction  in all respects  with the structure and all
other aspects of the  Recapitalization  and the other transactions  contemplated
hereby,  including  (i) the material  terms of all the  agreements to be entered
into in connection with the Recapitalization, (ii) all legal, tax, financing and
accounting matters relating to the Recapitalization and (iii) the capitalization
and   structure  of  Newco  and  the  Company   after   giving   effect  to  the
Recapitalization,  (d) the approval of CCP's internal  investment  committee and
(e) the  negotiation,  execution and delivery of definitive  documentation  with
respect to the  Investment  satisfactory  in all respects  (including  as to the
terms of the Investment not covered in this Letter) to CCP and you.

         This  Letter is not  intended  to be and should not be  construed  as a
commitment  with  respect to the PIK Notes and the  related  Warrants  or Common
Stock or any other  financing and creates no obligation or liability on the part
of CCP or any of its  affiliates  to  participate  in any  financing.  Any  such
commitment,  obligation or liability  will only be created by our execution of a
commitment letter or definitive documentation with respect to the Investment.

         This Letter is delivered to you on the understanding that the existence
of this  Letter  and the  terms or  substance  hereof  shall  not be  disclosed,
directly or  indirectly,  except (a) as may be  compelled  to be  disclosed in a
judicial or administrative  proceeding or as otherwise required by law (in which
case you  agree to  inform  us  promptly  thereof);  (b) on a  confidential  and
"need-to-know"  basis,  to  your  officers,  directors,  employees,  agents  and
advisors (collectively,  "Representatives") and the Representatives of the other
Investors and the Company who are directly involved in the consideration of this
matter;  or (c) the board of  directors  of the Company and their  advisors  and
agents.


                                       2


<PAGE>


Welsh, Carson, Anderson & Stowe
Page 3

         You  acknowledge  that CCP and its  affiliates  may be  providing  debt
financing,  equity  capital  or other  services  (including  financial  advisory
services) to other companies in respect of which Newco, the Company, you or your
affiliates  may  have  conflicting  interests.  CCP  will  not use  confidential
information obtained from you by virtue of the transactions contemplated by this
Letter or its other  relationships with you, Newco, or the Company in connection
with the  performance  by CCP or any of its  affiliates  of  services  for other
companies,  and CCP  will  not  furnish  any  such  information  to  such  other
companies.  You also  acknowledge that CCP and its affiliates have no obligation
to use in connection with the  transactions  contemplated by this Letter,  or to
furnish to you or any of your affiliates,  confidential  information obtained by
CCP or any of its affiliates from other companies.

         This Letter (and CCP's interest  hereunder)  shall not be assignable by
you  without  the prior  written  consent of CCP (and any  purported  assignment
without such consent  shall be null and void),  is intended to be solely for the
benefit of the parties  hereto and is not intended to confer any benefits  upon,
or create any rights in favor of, any person other than the parties hereto. This
Letter may not be amended or waived except by an instrument in writing signed by
you and CCP. This Letter may be executed in any number of counterparts,  each of
which  shall be an  original,  and all of  which,  when  taken  together,  shall
constitute one agreement.  Delivery of an executed signature page of this Letter
by facsimile  transmission shall be effective as delivery of a manually executed
counterpart  hereof. This Letter is the only understanding that has been entered
into  among  us with  respect  to the  Investment  and  sets  forth  the  entire
understanding of the parties with respect thereto. This Letter shall be governed
by, and construed in accordance with, the laws of the State of New York.

         CCP is a general  partnership with over $6.5 billion under  management.
CCP's sole  limited  partner is The Chase  Manhattan  Corporation,  the nation's
largest bank holding company with over $360 billion in assets.  CCP has invested
in  more  than  700  companies,  including  management  buyouts,  growth  equity
investments,   mezzanine  debt  and  equity   investments  and  venture  capital
transactions.






                                       3


<PAGE>


Welsh, Carson, Anderson & Stowe
Page 4



         CCP is pleased to have been given the  opportunity  to work with you in
connection  with the financing for the  Recapitalization  and we look forward to
working with you.

                                                    Very truly yours,

                                                    CHASE CAPITAL PARTNERS

                                                    By: /s/ ERIC GREEN
                                                       -------------------------
                                                    Name:   ERIC GREEN
                                                         -----------------------
                                                  Title:    MANAGING DIRECTOR
                                                        ------------------------





                                 EXHIBIT (A)(3)
                                 --------------

                         WCAS CAPITAL PARTNERS III, L.P.
                           320 PARK AVENUE, SUITE 2500
                            NEW YORK, NEW YORK 10022

                                  March 1, 1999

Concentra Managed Care, Inc.
c/o BT Alex. Brown Incorporated
One South Street
Baltimore, Maryland 21202

Attention: Brent B. Milner

Ladies and Gentlemen:

                  We refer to the letter dated  February  26, 1999,  from Welsh,
Carson,  Anderson & Stowe VIII,  L.P.  ("WCAS VIII"),  to you (together with the
accompanying  exhibits and other related  materials,  the "Revised Bid Letter"),
wherein WCAS VIII offered to acquire (the  "Acquisition") the stock of Concentra
Managed Care, Inc.  ("Concentra").  The Revised Bid Letter contemplates the sale
by Concentra of $110.2 million in aggregate principal amount of senior unsecured
pay-in-kind  notes,  and indicates that the undersigned  would purchase at least
$65.4  million in aggregate  principal  amount of such notes.  This will confirm
that,  in the event that the balance (of $54.8  million in  aggregate  principal
amount)  of such  notes  is not  sold on or  prior  to the  closing  date of the
Acquisition,  the undersigned will purchase any notes not so sold, up to a total
purchase of $110.2 million in aggregate  principal  amount  (including the $65.4
million that the undersigned has already committed to purchase),  to enable WCAS
VIII to consummate the Acquisition and related transactions on substantially the
terms set forth in the Revised Bid Letter.

                                      Very truly yours,

                                      WELSH, CARSON, ANDERSON & STOWE VIII, L.P.
                            By WCAS VIII Associates, L.L.C., its General Partner

                             By /s/ ANDREW M. PAUL
                                --------------------------------------
                                          Managing Member





                                 EXHIBIT (C)(2)
                                 --------------
                   WELSH, CARSON, ANDERSON & STOWE VIII, L.P.
                           320 PARK AVENUE, SUITE 2500
                            NEW YORK, NEW YORK 10022

                                 March 24, 1999

Yankee Acquisition Corp.
c/o Welsh, Carson, Anderson & Stowe VIII, L.P.
320 Park Avenue, Suite 2500
New York, New York 10022


Concentra Managed Care, Inc.
c/o BT Alex. Brown Incorporated
One South Street
Baltimore, Maryland 21202
Attention: Brent B. Milner


Ladies and Gentlemen:

          Reference  is made to the Amended and Restated  Agreement  and Plan of
Merger,  dated  as  of  the  date  hereof  (the  "Agreement"),   between  Yankee
Acquisition  Corp.  ("Newco") and Concentra  Managed Care, Inc. (the "Company").
Capitalized terms used herein and not otherwise defined herein have the meanings
given to them in the Agreement.

          We hold the number of securities  (collectively,  the "Securities") of
the  Company  reported  in our  Schedule  13D-1,  as  amended,  filed  with  the
Securities and Exchange  Commission  with respect to the Company.  We agree with
Newco and the  Company  that,  if at any time  between  the date  hereof and the
Effective Time,  Newco shall have any obligations or liabilities,  whether under
the Agreement or otherwise, that cannot be satisfied out of the assets of Newco,
we shall  promptly  contribute  to Newco the number of  Securities  necessary to
satisfy such  obligations  or  liabilities,  up to the  aggregate  number of the
Securities  we  hold  (or,  if we  elect  to  sell  any of the  Securities,  our
obligation  to  contribute  the  Securities  sold  shall be  converted  into our
obligation  to  contribute  to Newco  the  proceeds  from such  sale).  Any such
investment shall reduce by an equal amount our aggregate commitment to invest in
Newco.  In  furtherance  of our  obligations  hereunder,  we agree  not to sell,
transfer,  pledge or  otherwise  dispose  of the  Securities,  except  for sales
thereof for cash or a contribution of the Securities to Newco as contemplated by
the Agreement.


<PAGE>


          Notwithstanding  anything  that may be  expressed  or  implied  in the
foregoing  provisions of this letter agreement,  Newco and the Company, by their
acceptance  of the benefits  hereof,  covenant,  agree and  acknowledge  that no
Person other than Welsh,  Carson,  Anderson & Stowe VIII,  L.P.  ("WCAS  VIII"),
shall have any obligation hereunder and that,  notwithstanding that WCAS VIII is
a partnership,  no recourse hereunder shall be had against any current or future
officer, director, agent or employee of WCAS VIII, against any current or future
general  or  limited  partner  of WCAS VIII or  against  any  current  or future
director,  officer,  employee,  general or limited partner, member, affiliate or
assignee of any of the foregoing,  whether by the  enforcement of any assessment
or by any legal or equitable proceeding, or by virtue of any statute, regulation
or other applicable law. Without limiting the generality of the foregoing, it is
expressly agreed and acknowledged  that no personal  liability  whatsoever shall
attach to, be imposed on or otherwise incurred by any current or future officer,
agent or employee of WCAS VIII, any current or future general or limited partner
of WCAS VIII or any current or future director,  officer,  employee,  general or
limited partner,  member, affiliate or assignee of any of the foregoing, as such
for any  obligations  of WCAS VIII under this letter  agreement or for any claim
based on, in respect of or by reason of such obligations or their creation.

          WCAS VIII agrees that it shall,  and shall  cause its  affiliates  to,
vote all  shares  of  Company  Common  Stock  owned  by WCAS  VIII or any of its
affiliates in favor of the adoption of the Agreement.


                            Very truly yours,

                            WELSH, CARSON, ANDERSON & STOWE VIII, L.P.
                            By WCAS VIII Associates, L.L.C., its General Partner

                            By /s/ PAUL B. QUEALLY
                               -----------------------------
                                      Managing Member


                                       2







                                 EXHIBIT (C)(3)
                                 --------------

                          STOCK SUBSCRIPTION AGREEMENT
                          ----------------------------

          STOCK  SUBSCRIPTION  AGREEMENT  dated  as  of  March  24,  1999  (this
"AGREEMENT") by and between, Ferrer Freeman Thompson & Co. ("FFT"), on behalf of
Health Care Capital  Partners  L.P. and as its general  partner and on behalf of
Health Care Executive  Partners L.P. and as its general  partner  (collectively,
"BUYERS"), and Yankee Acquisition Corp., a Delaware corporation ("NEWCO").

                                    RECITALS:
                                    ---------
          Newco  and  Concentra  Managed  Care,  Inc.,  a  Delaware  corporation
("CONCENTRA"),  are parties to an Agreement and Plan of Merger dated as of March
2, 1999,  and  amended and  restated  as of the date hereof (as so amended,  the
"MERGER  AGREEMENT"),  pursuant  to which,  upon the terms  and  subject  to the
conditions set forth therein,  (i) Newco will merge with and into Concentra (the
"MERGER"),  (ii) each  outstanding  share of common  stock,  par value $0.01 per
share ("CONCENTRA COMMON STOCK"), of Concentra outstanding  immediately prior to
the Merger  (other than shares of  Concentra  Common Stock owned by Concentra or
Newco or their  affiliates)  will be converted  into the right to receive $16.50
per share in cash,  without  interest,  (iii) each  outstanding  share of common
stock,  par value  $0.01 per share  ("NEWCO  COMMON  STOCK"),  of Newco  will be
converted  into one share of Concentra  Common  Stock and (iv) each  outstanding
share of Class A common stock,  par value $0.01 per share ("NEWCO CLASS A COMMON
STOCK"),  of Newco will be converted into one share of Class A common stock, par
value $0.01 per share ("CONCENTRA CLASS A COMMON STOCK"), of Concentra.

          All of the issued and  outstanding  Newco  Common  Stock is  currently
owned by Welsh, Carson, Anderson & Stowe VIII, L.P. ("WCAS").

          Newco  desires to issue and sell newly issued  shares of Newco Class A
Common Stock to Buyers upon the terms and subject to the conditions  hereinafter
set forth.

          Buyers have  conditioned  its  purchase of the shares of Newco Class A
Common  Stock  to  be  purchased  by  it  hereunder  on  Newco  making   certain
representations and warranties to it hereunder and, in order to induce Buyers to
purchase such shares and in connection  with the  transactions  contemplated  to
occur on the Closing Date (as defined  below),  including  the Merger,  Newco is
willing to make such representations and warranties.

                                    AGREEMENT
                                    ---------

          NOW, THEREFORE, the parties hereto agree as follows:

                                     ARTICLE

                                PURCHASE AND SALE
                                -----------------


<PAGE>


          Section  1.1  PURCHASE  AND SALE.  Upon the terms and  subject  to the
conditions of this Agreement,  Newco agrees to issue and sell to each Buyer, and
each Buyer agrees to purchase  from Newco,  the number of shares of newly issued
Newco  Class A Common  Stock  (collectively,  the  "PURCHASE  STOCK")  set forth
opposite  its name on Schedule I hereto.  The  purchase  price for the  Purchase
Stock is $16.50 per share (the "PER SHARE  PURCHASE  Price")  and the  aggregate
purchase  price  for all the  Purchase  Stock  is  $30,599,993  (the  "AGGREGATE
PURCHASE Price").

          Section 2.1 CLOSING.  The closing (the  "CLOSING") of the purchase and
sale of the Purchase Stock  hereunder shall take place at the offices of Reboul,
MacMurray,  Hewitt, Maynard & Kristol, 45 Rockefeller Plaza, New York, New York,
immediately prior to the consummation of the Merger. At the Closing, (a) FFT, on
behalf of each Buyer,  shall deliver to Newco, in immediately  available  funds,
the Aggregate  Purchase Price by wire transfer to an account designated by Newco
not later than one business  day prior to the date of the Closing (the  "CLOSING
DATE") and (b) Newco shall deliver to each Buyer,  certificates for such Buyer's
Purchase Stock, duly registered in the names of each Buyer.

                                     ARTICLE 2

                     REPRESENTATIONS AND WARRANTIES OF NEWCO
                     ---------------------------------------

          Newco represents and warrants to Buyers as of the date hereof that:

          Section 2.1 CORPORATE  EXISTENCE AND POWER: NEWLY FORMED  CORPORATION.
Newco is a corporation duly incorporated,  validly existing and in good standing
under the laws of the State of Delaware.  Newco was incorporated  solely for the
purpose of effectuating  the  transactions  contemplated in the Merger Agreement
(including  the  transactions  contemplated  by  this  Agreement)  and  has  not
conducted any business or entered into any agreements or commitments except with
respect to the foregoing.

          Section 2.2 AUTHORIZATION.  The execution, delivery and performance by
Newco of this  Agreement and the Merger  Agreement and the  consummation  of the
transactions contemplated hereby and thereby are within Newco's corporate powers
and have been duly authorized by all necessary  corporate  action on the part of
Newco.  Each of this  Agreement and the Merger  Agreement has been duly executed
and  delivered  by  Newco.  Each of this  Agreement  and  the  Merger  Agreement
constitutes a valid and binding agreement of Newco, enforceable against Newco in
accordance  with its terms,  except (i) as  limited  by  applicable  bankruptcy,
insolvency,  reorganization,  moratorium,  and other laws of general application
affecting  enforcement or creditors' rights  generally,  (ii) as limited by laws
relating to the  availability of specific  performance,  injunctive  relief,  or
other  equitable  remedies  and (iii) with  respect to  provisions  relating  to
indemnification  arid  contribution,  as  limited  by  considerations  of public
policy.


                                       2


<PAGE>


          Section 2.3 GOVERNMENTAL  AUTHORIZATION.  The execution,  delivery and
performance  by Newco of this  Agreement  and the  Merger  Agreement  require no
order,  license,  consent,  authorization  or approval of, or  exemption  by, or
action by or in respect of, or notice to, or filing or  registration  with,  any
governmental  body,  agency  or  official  except  for  (i)  filings  under  the
Hart-Scott-Rodino  Antitrust  Improvements  Act of 1976,  as  amended  (the "HSR
ACT"),  (ii) the filing with the Securities and Exchange  Commission (the "SEC")
of such reports under and such other compliance with the Securities Exchange Act
of 1934,  as  amended  (the  "EXCHANGE  Act"),  and the  rules  and  regulations
thereunder  as may be required in  connection  with the Merger  Agreement,  this
Agreement and the transactions contemplated thereby and hereby, (iii) the filing
of a certificate of merger with the Secretary of State of the State of Delaware,
(iv) such  filings and  approvals  as may be required  by any  applicable  state
securities "blue sky" or takeover laws, (v) such as have been obtained,  or (vi)
except  where  the  failure  to  obtain  any  such  order,   license,   consent,
authorization,  approval or exemption or give any such notice or make any filing
or registration would not reasonably be expected to adversely affect the ability
of Newco to perform its obligations hereunder or thereunder.

          Section 2.4 NONCONTRAVENTION.  The execution, delivery and performance
by Newco of this  Agreement  and the  Merger  Agreement  do not and will not (i)
violate the certificate of  incorporation  or bylaws of Newco,  (ii) violate any
law, rule, regulation,  judgment,  injunction,  order or decree applicable to or
binding  upon Newco,  (iii)  require  any consent or other  action by any person
under, constitute a default under (with due notice or lapse of time or both), or
give rise to any right of termination, cancellation or acceleration of any right
or  obligation  of Newco or to a loss of any  benefit to which Newco is entitled
under any provision of any agreement or other  instrument  binding upon Newco or
any of its assets or  properties or (iv) result in the creation or imposition of
any material mortgage,  lien, pledge,  charge,  security interest or encumbrance
(each, a "LIEN") on any property or asset of Newco.

          Section 2.5  CAPITALIZATION.  The  authorized  capital  stock of Newco
consists of  105,000,000  shares of Newco  Common  Stock,  20,000,000  shares of
preferred stock, par value $0.01 per share and 5,000,000 shares of Newco Class A
Common Stock. Immediately prior to the Closing, the outstanding capital stock of
Newco will be 10 shares of Newco Common Stock and no shares of preferred  stock.
Immediately  prior  to  the  Closing,  WCAS  will  own  all of  the  issued  and
outstanding shares of capital stock of Newco. Immediately after the Closing, but
prior to the  effective  time of the Merger,  the  outstanding  capital stock of
Newco,  will be  23,742,187  shares of Newco Common Stock,  1,854,545  shares of
Newco Class A Common Stock and no shares of preferred stock. Except as set forth
in this  Section 2.5 or on Schedule  2.5 there are,  and  immediately  after the
Closing  but prior to the  Merger  there will be, no  outstanding  (i) shares of
capital  stock  or  voting   securities  of  Newco,  (ii)  securities  of  Newco
convertible  into  or  exchangeable  for  shares  of  capital  stock  or  voting
securities  of Newco,  (iii)  options or other rights to acquire from Newco,  or
other  obligation  of Newco to issue any capital  stock,  voting  securities  or
securities  convertible  into  or  exchangeable  for  capital  stock  or  voting
securities  of Newco or (iv)  obligation  of Newco to  repurchase  or  otherwise
acquire or retire any


                                       3


<PAGE>


shares of capital stock or any convertible securities,  rights or options of the
type  described in clause (i),  (ii),  or (iii).  The Newco Class A Common Stock
shall have the  rights and other  terms set forth in the  Amended  and  Restated
Charter of Newco attached hereto as Exhibit A.

          Section 2.6  LITIGATION.  Except as set forth on Schedule  2.6 hereto,
there is no action, suit, investigation or proceeding pending against, or to the
knowledge of Newco,  threatened  against or affecting  Newco before any court or
arbitrator  or any  governmental  body,  agency or official  which in any manner
challenges  or  seeks  to  prevent,   enjoin,  alter  or  materially  delay  the
transactions  contemplated  by this  Agreement or the Merger  Agreement or which
would reasonably be expected to have a material adverse effect on the ability of
Newco to perform its obligations under this Agreement or the Merger Agreement or
to consummate the Merger or on the business, properties,  financial condition or
results of operations of Concentra after the Merger.

          Section 2.7 VALID ISSUANCE OF SECURITIES. The shares of Purchase Stock
which are being issued to Buyers hereunder have been duly and validly authorized
and when issued,  sold and delivered in accordance with the terms hereof for the
consideration expressed herein, will be fully paid and nonassessable.

                                     ARTICLE 3

                     REPRESENTATION AND WARRANTIES OF BUYERS
                     ---------------------------------------

          Each Buyer  represents  and  warrants  to Newco as of the date  hereof
that:

          Section 3.1 EXISTENCE AND POWER. Such Buyer is a corporation,  limited
partnership or limited  liability  company,  as the case may be, duly organized,
validly  existing and in good  standing  under the laws of its  jurisdiction  of
organization.

          Section 3.2 AUTHORIZATION.  The execution, delivery and performance by
such  Buyer  of  this  Agreement  and  the   consummation  of  the  transactions
contemplated  hereby are within its corporate,  partnership or limited liability
company,  as the case  may be,  powers  and have  been  duly  authorized  by all
necessary  action  on the part of such  Buyer.  This  Agreement  has  been  duly
executed and  delivered by such Buyer.  This  Agreement  constitutes a valid and
binding  agreement of such Buyer,  enforceable  against such Buyer in accordance
with its terms,  except (i) as limited  by  applicable  bankruptcy,  insolvency,
reorganization,  moratorium,  and other  laws of general  application  affecting
enforcement or creditors' rights generally,  (ii) as limited by laws relating to
the availability of specific performance,  injunctive relief, or other equitable
remedies and (iii) with respect to provisions  relating to  indemnification  and
contribution, as limited by considerations of public policy.


                                       4


<PAGE>


          Section 3.3 GOVERNMENTAL  AUTHORIZATION.  The execution,  delivery and
performance by such Buyer of this Agreement require no order, license,  consent,
authorization or approval of, or exemption by, or action by or in respect of, or
notice to, or filing or  registration  with, any  governmental  body,  agency or
official  except such as have been  obtained or except for (i) filings under the
HSR Act,  (ii) such filings and  approvals as may be required by any  applicable
state  securities  "blue sky" laws,  (iii) such as have been  obtained,  or (iv)
where the failure to obtain any such  order,  license,  consent,  authorization,
approval or exemption or give any such notice or make any filing or registration
would not  reasonably be expected to adversely  affect the ability of such Buyer
to perform its obligations hereunder.

          Section 3.4 NONCONTRAVENTION.  The execution, delivery and performance
by such Buyer of this  Agreement do not and will not (i) violate,  if such Buyer
is a corporation,  the certificate of  incorporation or bylaws of such Buyer, if
such Buyer is a limited  partnership,  the certificate of limited partnership or
agreement of limited  partnership of such Buyer,  or, if such Buyer is a limited
liability  company,  the certificate of formation or limited  liability  company
agreement  of such Buyer,  (ii)  violate any law,  rule,  regulation,  judgment,
injunction,  order or decree  applicable  to or binding  upon such Buyer,  (iii)
require any consent or other  action by any person  under,  constitute a default
under  (with due notice or lapse of time or both),  or give rise to any right of
termination,  cancellation  or  acceleration  of any right or obligation of such
Buyer or to a loss of any  benefit  to which such  Buyer is  entitled  under any
provision of any agreement or other instrument binding upon such Buyer or any of
its assets or  properties  or (iv) result in the creation or  imposition  of any
material Lien on any property or asset of such Buyer.

          Section 3.5  PURCHASE FOR  INVESTMENT.  Such Buyer is  purchasing  its
Purchase Stock for investment for its own account and not with a view to, or for
sale in connection with, any distribution thereof.

          Section 3.6 PRIVATE PLACEMENT.  () Such Buyer's financial situation is
such  that such  Buyer  can  afford to bear the  economic  risk of  holding  its
Purchase  Stock for an indefinite  period of time,  and such Buyer can afford to
suffer the complete loss of the investment in its Purchase Stock.

          (b) Such Buyer's  knowledge  and  experience in financial and business
matters  are such that it is capable of  evaluating  the merits and risks of the
investment  in  its  Purchase  Stock  or  such  Buyer  has  been  advised  by  a
representative possessing such knowledge and experience.

          (c) Such Buyer understands that the Purchase Stock acquired  hereunder
is a speculative  investment which involves a high degree of risk of loss of the
entire investment  therein,  that there will be substantial  restrictions on the
transferability  of  the  Purchase  Stock  and  that  for an  indefinite  period
following the date hereof there will be no public market for the Purchase  Stock
and  that,  accordingly,  it may not be  possible  for  such  Buyer  to sell the
Purchase Stock in case of emergency or otherwise.


                                       5


<PAGE>


          (d) Such Buyer and its  representatives,  including,  to the extent it
deems appropriate,  its professional,  financial,  tax and other advisors,  have
reviewed all documents provided to them in connection with the investment in the
Purchase Stock, and such Buyer  understands and is aware of the risks related to
such investment.

          (e) Such Buyer and its representatives have been given the opportunity
to examine all documents  and to ask questions of, and to receive  answers from,
Newco, Concentra and their respective  representatives  concerning the terms and
conditions of the  acquisition of the Purchase Stock and related  matters and to
obtain all additional  information which such Buyer or its representatives  deem
necessary.

          (f) Such Buyer is an "ACCREDITED  INVESTOR" as such term is defined in
Regulation D under the  Securities  Act of 1933,  as amended,  and the rules and
regulations promulgated thereunder.

          Section 3.7 LITIGATION.  There is no action,  suit,  investigation  or
proceeding pending against, or to the knowledge of such Buyer threatened against
or  affecting,  such Buyer before any court or  arbitrator  or any  governmental
body,  agency or official  which in any manner  challenges  or seeks to prevent,
enjoin,  alter  or  materially  delay  the  transactions  contemplated  by  this
Agreement.

          Section 3.8 BROKERS OR FINDERS' FEES.  There is no investment  banker,
broker,  finder  or other  intermediary  which  has been  retained  by,  will be
retained  by or is  authorized  to act on  behalf  of such  Buyer  who  might be
entitled  to any fee or  commission  from  Concentra,  Newco or such  Buyer upon
consummation of the transactions contemplated by this Agreement.

                                    ARTICLE 4

                          COVENANTS OF NEWCO AND BUYERS
                          -----------------------------

          Section 4.1 STOCKHOLDERS' AND REGISTRATION RIGHTS AGREEMENT. Newco and
each Buyer agree that they shall use their reasonable best efforts to enter into
a stockholders'  agreement and a registration  rights  agreement (the "ANCILLARY
AGREEMENTS") containing the terms set forth on Schedule 4.1.

          Section 4.2 FURTHER ASSURANCES.  Newco and each Buyer agree that, from
time to time,  whether on or after the Closing  Date,  each of them will execute
and deliver such further  instruments  of conveyance  and transfer and take such
other  actions as may be necessary to carry out the purposes and intents of this
Agreement.

                                    ARTICLE 5

                              CONDITIONS TO CLOSING
                              ---------------------

                                       6


<PAGE>


          Section  5.1  CONDITIONS  TO  OBLIGATIONS  OF BUYERS  AND  NEWCO.  The
obligations  of Buyers and Newco to  consummate  the  transactions  contemplated
hereby are subject to the satisfaction of the following conditions:

          (a) No provision of any  applicable  law,  rule or  regulation  and no
     judgment,  injunction,  order  or  decree  by any  governmental  entity  of
     competent  jurisdiction  shall prohibit the  consummation of the Closing or
     the Merger.

          (b) All  material  actions by or in respect of, or filings  with,  any
     governmental  body,  agency,  official or authority  required to permit the
     consummation of the Closing shall have been taken, made or obtained.

          (c) Newco  shall  have  received  an equity  contribution  of at least
     $346,900,000 from WCAS and affiliated investors.

          (d) The  conditions  to the  consummation  of the  Merger set forth in
     Article 6 of the Merger Agreement,  other than those to be satisfied at the
     effective time of the Merger, shall have been satisfied or waived.

          Section 5.2  CONDITIONS TO  OBLIGATIONS  OF BUYERS.  The obligation of
each Buyer to consummate the transactions  contemplated hereby is subject to the
satisfaction of the following further conditions:

          (a) (i) Newco shall have performed in all material respects all of its
     obligations  hereunder  required to be  performed  by it on or prior to the
     Closing Date and (ii) the representations and warranties of Newco contained
     in this Agreement  shall be true in all material  respects when made and at
     and as of the Closing Date, as if made at and as of such date.

          (b) Each of Concentra  and WCAS shall have  executed and delivered the
     Ancillary  Agreements  on terms  consistent  with  Section  4.1  hereof and
     reasonably satisfactory to FFT, on behalf of Buyers.

          (c) Newco  shall not have waived any of the  conditions  to the Merger
     contained in Sections 6.1 or 6.3 of the Merger  Agreement nor have altered,
     amended or modified the Merger Agreement  without the prior consent of FFT,
     on behalf of Buyers, which consent shall not be unreasonably withheld.

          (d)   Arrangements   for  equity   participation,   in  the  surviving
     corporation of the Merger,  by management of Concentra  shall be reasonably
     acceptable to FFT, on behalf of Buyers.


                                       7


<PAGE>


          (e) FFT, on behalf of Buyers, shall have received all documents it may
     reasonably  request relating to the existence of Newco and the authority of
     Newco for this Agreement, all in form and substance reasonably satisfactory
     to FFT, on behalf of Buyers.

          Section 5.3 CONDITIONS TO OBLIGATION OF NEWCO. The obligation of Newco
to  consummate  the   transactions   contemplated   hereby  is  subject  to  the
satisfaction of the following further conditions:

          (a) (i) Each Buyer shall have  performed in all material  respects all
     of its obligations  hereunder required to be performed by it at or prior to
     the Closing Date and (ii) the  representations and warranties of such Buyer
     contained in this  Agreement  shall be true in all material  respects  when
     made and at and as of the Closing Date, as if made at and as of such date.

          (b) Each Buyer and  Concentra  shall have  executed and  delivered the
     Ancillary  Agreements  on terms  consistent  with  Section  4.1  hereof and
     reasonably satisfactory to Newco.


                                     ARTICLE 6

           SURVIVAL OF REPRESENTATIONS AND WARRANTIES: INDEMNIFICATION
           -----------------------------------------------------------

          Section 6.1 SURVIVAL.  Except for the  representations  and warranties
contained  in  Sections  2.5 and 2.7,  which  shall  survive  indefinitely,  the
representations and warranties of the parties hereto contained in this Agreement
shall  survive the Closing  until  twelve  months  after the Closing  Date,  and
thereafter shall terminate and be of no further force or effect.

          Section 6.2  INDEMNIFICATION.  () Newco hereby indemnifies,  severally
and not  jointly,  each  Buyer and its  affiliates,  limited  partners,  general
partners,  directors,  officers and employees against and agrees to hold each of
them harmless from any and all damage,  loss,  liability and expense (including,
without   limitation,   reasonable  expenses  of  investigation  and  reasonable
attorneys' fees and expenses in connection with any action,  suit or proceeding)
("DAMAGES")  incurred  or  suffered  by  any  such  party  arising  out  of  any
misrepresentation  or breach of warranty,  covenant or  agreement  made or to be
performed by Newco pursuant to this Agreement; PROVIDED that with respect to any
Buyer,  (i) Newco  shall not be liable  under  this  Section  6.2(a)  unless the
aggregate  amount of Damages  with  respect to all  matters  referred to in this
Section 6.2(a) for which such Buyer has sought indemnification  exceeds $100,000
and then only to the extent of such  excess and (ii) the  indemnifying  parties'
aggregate  maximum  liability  under this  Section  6.2(a)  shall not exceed the
amount of the Aggregate Purchase Price paid by such Buyer to Newco.


                                       8

<PAGE>


          (b) Each Buyer hereby  indemnifies,  severally and not jointly,  Newco
     and its affiliates, limited partners, general partners, directors, officers
     and employees against and agrees to hold each of them harmless from any and
     all  Damages  incurred  or  suffered  by any such party  arising out of any
     misrepresentation  or breach of warranty,  covenant or agreement made or to
     be performed by such Buyer  pursuant to this  Agreement;  PROVIDED that (i)
     such  Buyer  shall not be liable  under  this  Section  6.2(b)  unless  the
     aggregate amount of Damages with respect to all matters referred to in this
     Section 6.2(b) exceeds  $100,000 and then only to the extent of such excess
     and (ii) such Buyer's maximum liability under this Section 6.2(b) shall not
     exceed the amount of Aggregate Purchase Price paid by such Buyer to Newco.

          Section 6.3 EXCLUSIVITY.  After the Closing,  Section 6.2 will provide
the exclusive remedy for any misrepresentation,  breach of warranty, covenant or
other agreement or other claim arising out of this Agreement or the transactions
contemplated hereby.


                                     ARTICLE 7

                                   TERMINATION

          Section 7.1 GROUNDS FOR TERMINATION.  This Agreement may be terminated
at any time prior to the Closing:

          (a) by mutual written agreement of Newco and FFT, on behalf of Buyers;

          (b) by either Newco, on the one hand, or FFT, on behalf of Buyers,  on
     the other hand, if the Closing,  shall not have been  consummated as of the
     close of business on August 31, 1999,  PROVIDED that the right to terminate
     this  Agreement  under this  Section  7.1(b)  shall not be available to any
     party whose  breach of any  obligation  under this  Agreement  has been the
     cause of or  resulted  in the  failure of the Closing to occur on or before
     such date; or

          (c) by Newco,  on the one hand,  or FFT,  on behalf of Buyers,  on the
     other hand, if consummation of the transactions  contemplated  hereby would
     violate any non-appealable  final order, decree or judgment of any court or
     governmental body having competent jurisdiction.

          Section 7.2 EFFECT OF TERMINATION.  If this Agreement is terminated as
permitted by Section 7.1,  such  termination  shall be without  liability of any
party (or any stockholder,  general partner,  limited partner, member, director,
officer,  employee, agent, consultant or representative of such party) to any of
the other parties to this Agreement and this Agreement  shall become void and of
no further force or effect;  PROVIDED that if such termination shall result from
the  willful  (i)  failure  of  either  party  to  fulfill  a  condition  to the
performance  of the  obligations  of the other party,  (ii) failure to perform a
covenant of this  Agreement or (iii)

                                       9



<PAGE>


material  breach by either  party  hereto of any  representation  or warranty or
agreement  contained herein, such party shall be liable for such breach prior to
such termination. Notwithstanding the foregoing, the provisions of Sections 8.3,
8.5, 8.6 and 8.7 shall survive any termination hereof pursuant to Section 7.1.

          Section  7.3  RESCISSION.  If the  Closing  shall occur but the Merger
shall not have been  consummated  by the close of business on the third business
day  following  the Closing,  then the  purchase and sale of the Purchase  Stock
shall be rescinded,  Newco shall return to Buyers the Aggregate  Purchase  Price
paid by them for the  Purchase  Stock  and  Buyers  shall  return  to Newco  the
certificates  representing  the Purchase Stock.  Upon any such  rescission,  the
parties  hereto  shall be treated  for all  purposes  as if the  Closing had not
occurred,  including without limitation with respect to rights to terminate this
Agreement as provided in Section 7.1.


                                    ARTICLE 8

                                  MISCELLANEOUS

          Section 8.1 NOTICES. All notices, requests and other communications to
any party hereunder shall be in writing (including  facsimile  transmission) and
shall be given:

                  if to Newco, to:

                           Yankee Acquisition Corp.

                           c/o Welsh, Carson, Anderson & Stowe, VIII L.P
                           320 Park Avenue, Suite 2500
                           New York, New York 10022
                           Attention:  Paul B. Queally
                           Fax:  (212) 893-9566

                           with a copy to:

                           Reboul, MacMurray, Hewitt, Maynard & Kristol
                           45 Rockefeller Plaza
                           New York, New York 10111
                           Attention:  Othon A. Prounis
                           Fax:  (212) 841-5725

                  if to any Buyer, to it:

                           c/o Ferrer Freeman Thompson & Co.
                           The Mill


                                       10



<PAGE>


                           10 Glenville Street
                           Greenwich, Conncecticut  06831
                           Attention:  Carlos Ferrer
                           Fax:  (203) 532-8016

                   with a copy to:

                           Fried, Frank, Harris, Shriver & Jacobson
                           One New York Plaza
                           New York, New York 10004
                           Attention:  David Golay
                           Fax:  (212) 859-8164

or to such other  address or telecopy  number and with such other copies as such
party may  hereafter  specify  for the  purpose  of  notice.  All such  notices,
requests  and  other  communications  shall be  deemed  received  on the date of
receipt by the recipient  thereof if received prior to 5:00 p.m. in the place of
receipt and such day is a business day in the place of receipt.  Otherwise,  any
such notice,  request or communication shall be deemed not to have been received
until the next succeeding business day in the place of receipt.

          Section . AMENDMENTS  AND WAIVERS.  () Any provision of this Agreement
may be amended or waived if, but only if, such amendment or waiver is in writing
and signed in the case of an amendment,  by each party to this Agreement,  or in
the case of a waiver, by the party against whom the waiver is to be effective.

          () No failure or delay by any party in exercising any right,  power or
     privilege  hereunder shall operate as a waiver thereof nor shall any single
     or partial  exercise thereof preclude any other or further exercise thereof
     or the  exercise of any other  right,  power or  privilege.  The rights and
     remedies  herein  provided  shall be  cumulative  and not  exclusive of any
     rights or remedies provided by law.

          Section 8.3 EXPENSES. () All costs and expenses incurred in connection
with this Agreement  shall be paid by the party  incurring such cost or expense,
except that if the Closing  shall occur,  Newco shall  reimburse  Buyers for all
documented   out-of-pocket   expenses  incurred  by  them,  including,   without
limitation,  the reasonable fees and expenses of one counsel for all Buyers,  up
to, but not in excess of, $100,000 in the aggregate for all such expenses.

          (b) In the event that Newco receives the Company  Termination  Fee (as
     defined in the Merger Agreement) from Concentra, Buyers will be entitled to
     (i) a portion  thereof (the "PRO RATA  PORTION")  calculated by multiplying
     the  amount  of the  Company  Termination  Fee  less  the  portions  of the
     Termination Fee payable to the entities set forth on Schedule 5.4(b) of the
     Merger  Agreement by a fraction the  numerator of which is the total number
     of


                                       11


<PAGE>


     shares set forth on  Schedule 1 and the  denominator  of which is the total
     number of shares of  Concentra  Common Stock and  Concentra  Class A Common
     Stock expected to be outstanding  immediately after the Merger as set forth
     in Section 2.5 hereof and (ii)  reimbursement for all its fees and expenses
     to the extent  recoverable  from  Concentra  pursuant to Section 5.3 of the
     Merger Agreement and the Pro Rata Portion of its fees and expenses actually
     reimbursed by Concentra to the extent the total amount of fees and expenses
     recoverable from Concentra  pursuant to Section 5.3 of the Merger Agreement
     exceeds the limitations provided therein.

          Section 8.4 SUCCESSORS  AND ASSIGNS.  The provisions of this Agreement
shall be binding  upon any inure to the benefit of the parties  hereto and their
respective successors and assigns,  PROVIDED that no party may assign,  delegate
or otherwise  transfer  any of its rights or  obligations  under this  Agreement
without the consent of each other  party  hereto (it being  agreed that a merger
(including  the Merger) shall not be deemed an assignment  requiring the consent
of Buyers).  Notwithstanding the foregoing, Buyers may assign their rights under
this  Agreement or the right to receive any of the  Purchased  Shares under this
Agreement to any general or limited  partner of Buyers or FFT or any  affiliates
(as defined in Rule 405  promulgated  under the Securities Act) of Buyers or FFT
(collectively,  the "FFT PARTIES" and each an "FFT PARTY"),  who are  reasonably
acceptable  to Newco;  PROVIDED  that any such FFT Party  executes an assumption
agreement  reasonably  satisfactory  in form and substance to Newco whereby such
FFT Party makes  certain  representations  and  warranties  as set forth in this
Agreement and agrees to be bound, to the same extent as its  transferor,  by the
terms of this Agreement.

          Section 8.5  GOVERNING  LAW. This  Agreement  shall be governed by and
construed in accordance with the law of the State of New York.

          Section  8.6  JURISDICTION.  The parties  hereto  agree that any suit,
action or proceeding seeking to enforce any provision of, or based on any matter
arising  out of or in  connection  with,  this  Agreement  or  the  transactions
contemplated  hereby may only be brought in the United States District Court for
the  Southern  District of New York or any New York State  court  sitting in New
York City, and each of the parties hereby  consents to the  jurisdiction of such
courts (and of the  appropriate  appellate  courts  therefrom) in any such suit,
action or proceeding and irrevocably  waives, to the fullest extent permitted by
law, any objection which it may now or hereafter have to the laying of the venue
of any such suit,  action or proceeding in any such court or that any such suit,
action or  proceeding  which is brought in any such court has been brought in an
inconvenient forum. Process in any such suit, action or proceeding may be served
on any party anywhere in the world,  whether within or without the  jurisdiction
of any such  court.  Without  limiting  the  foregoing,  each party  agrees that
service  of process on such  party as  provided  in Section  9.1 shall be deemed
effective service of process on such party.

          Section 8.7 WAIVER OF JURY TRIAL.  EACH OF THE PARTIES  HERETO  HEREBY
IRREVOCABLY  WAIVES  ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL  PROCEEDING
ARISING OUT OF OR RELATED TO THIS  AGREEMENT  OR THE  TRANSACTIONS  CONTEMPLATED
HEREBY.


                                       12


<PAGE>


          Section 8.8 COUNTERPARTS;  THIRD PARTY  BENEFICIARIES.  This Agreement
may be signed in any number of counterparts, each of which shall be an original,
with the same effect as if the signatures  thereto and hereto were upon the same
instrument.  This Agreement shall become  effective when each party hereto shall
have  received  a  counterpart  hereof  signed by the  other  party  hereto.  No
provision of this Agreement  shall confer upon any person other than the parties
hereto any rights or remedies hereunder.

          Section 8.9 ENTIRE  AGREEMENT.  This Agreement  constitutes the entire
agreement  between  the  parties  with  respect  to the  subject  matter of this
Agreement and supersedes all prior agreements and understandings,  both oral and
written,  between  the  parties  with  respect  to the  subject  matter  of this
Agreement.

          Section  8.10   CAPTIONS.   The  captions   herein  are  included  for
convenience  of  reference  only and shall be  ignored  in the  construction  or
interpretation hereof.

          Section 8.11 SEVERABILITY. If one or more provisions of this Agreement
are held to be  unenforceable  under  applicable  law, such  provision  shall be
deemed to be excluded  from this  Agreement  and the  balance of this  Agreement
shall be interpreted as if such provision were so excluded and shall be enforced
in accordance with its terms to the maximum extent permitted by law.

          Section 8.12 INTERPRETATION.  The headings contained in this Agreement
are for  reference  purposes only and shall not affect in any way the meaning or
interpretation of this Agreement.






                                       13


<PAGE>


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

                            YANKEE ACQUISITION CORP.

                                        By: /s/ PAUL B. QUEALLY
                                            ------------------------------------
                                            Name: Paul B. Queally
                                            Title: President


                                        FERRER FREEMAN THOMPSON & CO., LLC.


                                        on behalf of HEALTH CARE CAPITAL
                                        PARTNERS L.P. and as its General Partner

                                                and

                                        on behalf of HEALTH CARE EXECUTIVE
                                        PARTNERS L.P. and as its General Partner

                                        By: /s/ ROBERT T. THOMPSON
                                           -------------------------------------
                                           Name:  Robert T. Thompson
                                           Title: Member


                                       14





                                  EXHIBIT 99.1
                                  ------------

                                POWER OF ATTORNEY
                          FOR EXECUTING SCHEDULE 13E-3

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of James M. Greenwood, Richard A. Parr II and Daniel J. Thomas the
undersigned's true and lawful attorney-in-fact to:

(1)      execute  for  and  on  behalf  of  the  undersigned  a  Schedule  13E-3
         (including  amendments thereto) in accordance with Section 13(e) of the
         Securities Exchange Act of 1934 and the rules thereunder;

(2)      do and  perform  any and all acts for and on behalf of the  undersigned
         that may be  necessary  or  desirable  to complete and execute any such
         Schedule 13E-3  (including  amendments  thereto) and file that Schedule
         with the  Securities and Exchange  Commission and any other  authority;
         and

(3)      take any other action of any type  whatsoever  in  connection  with the
         foregoing that, in the opinion of any such attorney-in-fact,  may be of
         benefit  to,  in the best  interest  of,  or  legally  required  of the
         undersigned,  it being  understood  that the documents  executed by the
         attorney-in-fact on behalf of the undersigned pursuant to this Power of
         Attorney  shall be in such  form  and  shall  contain  such  terms  and
         conditions    as   the    attorney-in-fact    may    approve   in   the
         attorney-in-fact's discretion.

         The undersigned hereby grants to each such  attorney-in-fact full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary  or proper to be done in the exercise of any of the rights
and  powers  herein  granted,  as  fully  to all  intents  and  purposes  as the
undersigned  might  or  could  do if  personally  present,  with  full  power of
substitution  or revocation,  hereby  ratifying and confirming all that any such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this Power
of  Attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each  attorney-in-fact,  in serving in such  capacity  at the
request  of  the  undersigned,   is  not  assuming  any  of  the   undersigned's
responsibilities  to comply with  Section 13 of the  Securities  Exchange Act of
1934.

         The undersigned agrees that each  attorney-in-fact may rely entirely on
information   furnished   orally  or  in  writing  by  the  undersigned  to  the
attorney-in-fact.

         This Power of Attorney  shall remain in full force and effect until the
undersigned has filed such Schedule 13E-3 (including amendments thereto), unless
earlier  revoked  by the  undersigned  in a  signed  writing  delivered  to each
attorney-in-fact.  This Power of  Attorney  does not  revoke any other  power of
attorney that the undersigned has previously granted.

         IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney
to be executed effective as of the date written below.

                                               /s/ JAMES M. GREENWOOD
                                               ---------------------------------
                                               Signature


                                                   JAMES M. GREENWOOD
                                               ---------------------------------
                                               Type or Print Name


                                                    MAY 28, 1999
                                                --------------------------------
                                                Date


<PAGE>

                                POWER OF ATTORNEY

                          FOR EXECUTING SCHEDULE 13E-3

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of James M. Greenwood, Richard A. Parr II and Daniel J. Thomas the
undersigned's true and lawful attorney-in-fact to:

(1)      execute  for  and  on  behalf  of  the  undersigned  a  Schedule  13E-3
         (including  amendments thereto) in accordance with Section 13(e) of the
         Securities Exchange Act of 1934 and the rules thereunder;

(2)      do and  perform  any and all acts for and on behalf of the  undersigned
         that may be  necessary  or  desirable  to complete and execute any such
         Schedule 13E-3  (including  amendments  thereto) and file that Schedule
         with the  Securities and Exchange  Commission and any other  authority;
         and

(3)      take any other action of any type  whatsoever  in  connection  with the
         foregoing that, in the opinion of any such attorney-in-fact,  may be of
         benefit  to,  in the best  interest  of,  or  legally  required  of the
         undersigned,  it being  understood  that the documents  executed by the
         attorney-in-fact on behalf of the undersigned pursuant to this Power of
         Attorney  shall be in such  form  and  shall  contain  such  terms  and
         conditions    as   the    attorney-in-fact    may    approve   in   the
         attorney-in-fact's discretion.

         The undersigned hereby grants to each such  attorney-in-fact full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary  or proper to be done in the exercise of any of the rights
and  powers  herein  granted,  as  fully  to all  intents  and  purposes  as the
undersigned  might  or  could  do if  personally  present,  with  full  power of
substitution  or revocation,  hereby  ratifying and confirming all that any such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this Power
of  Attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each  attorney-in-fact,  in serving in such  capacity  at the
request  of  the  undersigned,   is  not  assuming  any  of  the   undersigned's
responsibilities  to comply with  Section 13 of the  Securities  Exchange Act of
1934.

         The undersigned agrees that each  attorney-in-fact may rely entirely on
information   furnished   orally  or  in  writing  by  the  undersigned  to  the
attorney-in-fact.

         This Power of Attorney  shall remain in full force and effect until the
undersigned has filed such Schedule 13E-3 (including amendments thereto), unless
earlier  revoked  by the  undersigned  in a  signed  writing  delivered  to each
attorney-in-fact.  This Power of  Attorney  does not  revoke any other  power of
attorney that the undersigned has previously granted.

         IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney
to be executed effective as of the date written below.



                                              /s/ RICHARD A. PARR II
                                       -----------------------------------------
                                       Signature


                                                  RICHARD A. PARR II
                                       -----------------------------------------
                                       Type or Print Name


                                                   MAY 28, 1999
                                       -----------------------------------------
                                       Date

<PAGE>

                                POWER OF ATTORNEY
                          FOR EXECUTING SCHEDULE 13E-3

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of James M. Greenwood, Richard A. Parr II and Daniel J. Thomas the
undersigned's true and lawful attorney-in-fact to:

(1)      execute  for  and  on  behalf  of  the  undersigned  a  Schedule  13E-3
         (including  amendments thereto) in accordance with Section 13(e) of the
         Securities Exchange Act of 1934 and the rules thereunder;

(2)      do and  perform  any and all acts for and on behalf of the  undersigned
         that may be  necessary  or  desirable  to complete and execute any such
         Schedule 13E-3  (including  amendments  thereto) and file that Schedule
         with the  Securities and Exchange  Commission and any other  authority;
         and

(3)      take any other action of any type  whatsoever  in  connection  with the
         foregoing that, in the opinion of any such attorney-in-fact,  may be of
         benefit  to,  in the best  interest  of,  or  legally  required  of the
         undersigned,  it being  understood  that the documents  executed by the
         attorney-in-fact on behalf of the undersigned pursuant to this Power of
         Attorney  shall be in such  form  and  shall  contain  such  terms  and
         conditions    as   the    attorney-in-fact    may    approve   in   the
         attorney-in-fact's discretion.

         The undersigned hereby grants to each such  attorney-in-fact full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary  or proper to be done in the exercise of any of the rights
and  powers  herein  granted,  as  fully  to all  intents  and  purposes  as the
undersigned  might  or  could  do if  personally  present,  with  full  power of
substitution  or revocation,  hereby  ratifying and confirming all that any such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this Power
of  Attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each  attorney-in-fact,  in serving in such  capacity  at the
request  of  the  undersigned,   is  not  assuming  any  of  the   undersigned's
responsibilities  to comply with  Section 13 of the  Securities  Exchange Act of
1934.

         The undersigned agrees that each  attorney-in-fact may rely entirely on
information   furnished   orally  or  in  writing  by  the  undersigned  to  the
attorney-in-fact.

         This Power of Attorney  shall remain in full force and effect until the
undersigned has filed such Schedule 13E-3 (including amendments thereto), unless
earlier  revoked  by the  undersigned  in a  signed  writing  delivered  to each
attorney-in-fact.  This Power of  Attorney  does not  revoke any other  power of
attorney that the undersigned has previously granted.

         IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney
to be executed effective as of the date written below.

                                               /s/ DANIEL J. THOMAS
                                       -----------------------------------------
                                       Signature


                                                   DANIEL J. THOMAS
                                       -----------------------------------------
                                       Type or Print Name


                                                   MAY 28, 1999
                                       -----------------------------------------
                                       Date


<PAGE>

                                POWER OF ATTORNEY
                          FOR EXECUTING SCHEDULE 13E-3

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of James M. Greenwood, Richard A. Parr II and Daniel J. Thomas the
undersigned's true and lawful attorney-in-fact to:

(1)      execute  for  and  on  behalf  of  the  undersigned  a  Schedule  13E-3
         (including  amendments thereto) in accordance with Section 13(e) of the
         Securities Exchange Act of 1934 and the rules thereunder;

(2)      do and  perform  any and all acts for and on behalf of the  undersigned
         that may be  necessary  or  desirable  to complete and execute any such
         Schedule 13E-3  (including  amendments  thereto) and file that Schedule
         with the  Securities and Exchange  Commission and any other  authority;
         and

(3)      take any other action of any type  whatsoever  in  connection  with the
         foregoing that, in the opinion of any such attorney-in-fact,  may be of
         benefit  to,  in the best  interest  of,  or  legally  required  of the
         undersigned,  it being  understood  that the documents  executed by the
         attorney-in-fact on behalf of the undersigned pursuant to this Power of
         Attorney  shall be in such  form  and  shall  contain  such  terms  and
         conditions    as   the    attorney-in-fact    may    approve   in   the
         attorney-in-fact's discretion.

         The undersigned hereby grants to each such  attorney-in-fact full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary  or proper to be done in the exercise of any of the rights
and  powers  herein  granted,  as  fully  to all  intents  and  purposes  as the
undersigned  might  or  could  do if  personally  present,  with  full  power of
substitution  or revocation,  hereby  ratifying and confirming all that any such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this Power
of  Attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each  attorney-in-fact,  in serving in such  capacity  at the
request  of  the  undersigned,   is  not  assuming  any  of  the   undersigned's
responsibilities  to comply with  Section 13 of the  Securities  Exchange Act of
1934.

         The undersigned agrees that each  attorney-in-fact may rely entirely on
information   furnished   orally  or  in  writing  by  the  undersigned  to  the
attorney-in-fact.

         This Power of Attorney  shall remain in full force and effect until the
undersigned has filed such Schedule 13E-3 (including amendments thereto), unless
earlier  revoked  by the  undersigned  in a  signed  writing  delivered  to each
attorney-in-fact.  This Power of  Attorney  does not  revoke any other  power of
attorney that the undersigned has previously granted.

         IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney
to be executed effective as of the date written below.

                                                /s/ JOHN K. CARLYLE
                                          --------------------------------------
                                          Signature


                                                    JOHN K. CARLYLE
                                          --------------------------------------
                                          Type or Print Name


                                                    MAY 28, 1999
                                          --------------------------------------
                                          Date


<PAGE>

                                POWER OF ATTORNEY
                          FOR EXECUTING SCHEDULE 13E-3

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of James M. Greenwood, Richard A. Parr II and Daniel J. Thomas the
undersigned's true and lawful attorney-in-fact to:

(1)      execute  for  and  on  behalf  of  the  undersigned  a  Schedule  13E-3
         (including  amendments thereto) in accordance with Section 13(e) of the
         Securities Exchange Act of 1934 and the rules thereunder;

(2)      do and  perform  any and all acts for and on behalf of the  undersigned
         that may be  necessary  or  desirable  to complete and execute any such
         Schedule 13E-3  (including  amendments  thereto) and file that Schedule
         with the  Securities and Exchange  Commission and any other  authority;
         and

(3)      take any other action of any type  whatsoever  in  connection  with the
         foregoing that, in the opinion of any such attorney-in-fact,  may be of
         benefit  to,  in the best  interest  of,  or  legally  required  of the
         undersigned,  it being  understood  that the documents  executed by the
         attorney-in-fact on behalf of the undersigned pursuant to this Power of
         Attorney  shall be in such  form  and  shall  contain  such  terms  and
         conditions    as   the    attorney-in-fact    may    approve   in   the
         attorney-in-fact's discretion.

         The undersigned hereby grants to each such  attorney-in-fact full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary  or proper to be done in the exercise of any of the rights
and  powers  herein  granted,  as  fully  to all  intents  and  purposes  as the
undersigned  might  or  could  do if  personally  present,  with  full  power of
substitution  or revocation,  hereby  ratifying and confirming all that any such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this Power
of  Attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each  attorney-in-fact,  in serving in such  capacity  at the
request  of  the  undersigned,   is  not  assuming  any  of  the   undersigned's
responsibilities  to comply with  Section 13 of the  Securities  Exchange Act of
1934.

         The undersigned agrees that each  attorney-in-fact may rely entirely on
information   furnished   orally  or  in  writing  by  the  undersigned  to  the
attorney-in-fact.

         This Power of Attorney  shall remain in full force and effect until the
undersigned has filed such Schedule 13E-3 (including amendments thereto), unless
earlier  revoked  by the  undersigned  in a  signed  writing  delivered  to each
attorney-in-fact.  This Power of  Attorney  does not  revoke any other  power of
attorney that the undersigned has previously granted.

         IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney
to be executed effective as of the date written below.

                                               /s/ W. TOM FOGARTY, M.D.
                                          --------------------------------------
                                          Signature


                                                   W. TOM FOGARTY, M.D.
                                          --------------------------------------
                                          Type or Print Name


                                                   MAY 28, 1999
                                          --------------------------------------
                                          Date



<PAGE>

                                POWER OF ATTORNEY
                          FOR EXECUTING SCHEDULE 13E-3

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of James M. Greenwood, Richard A. Parr II and Daniel J. Thomas the
undersigned's true and lawful attorney-in-fact to:

(1)      execute  for  and  on  behalf  of  the  undersigned  a  Schedule  13E-3
         (including  amendments thereto) in accordance with Section 13(e) of the
         Securities Exchange Act of 1934 and the rules thereunder;

(2)      do and  perform  any and all acts for and on behalf of the  undersigned
         that may be  necessary  or  desirable  to complete and execute any such
         Schedule 13E-3  (including  amendments  thereto) and file that Schedule
         with the  Securities and Exchange  Commission and any other  authority;
         and

(3)      take any other action of any type  whatsoever  in  connection  with the
         foregoing that, in the opinion of any such attorney-in-fact,  may be of
         benefit  to,  in the best  interest  of,  or  legally  required  of the
         undersigned,  it being  understood  that the documents  executed by the
         attorney-in-fact on behalf of the undersigned pursuant to this Power of
         Attorney  shall be in such  form  and  shall  contain  such  terms  and
         conditions    as   the    attorney-in-fact    may    approve   in   the
         attorney-in-fact's discretion.

         The undersigned hereby grants to each such  attorney-in-fact full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary  or proper to be done in the exercise of any of the rights
and  powers  herein  granted,  as  fully  to all  intents  and  purposes  as the
undersigned  might  or  could  do if  personally  present,  with  full  power of
substitution  or revocation,  hereby  ratifying and confirming all that any such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this Power
of  Attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each  attorney-in-fact,  in serving in such  capacity  at the
request  of  the  undersigned,   is  not  assuming  any  of  the   undersigned's
responsibilities  to comply with  Section 13 of the  Securities  Exchange Act of
1934.

         The undersigned agrees that each  attorney-in-fact may rely entirely on
information   furnished   orally  or  in  writing  by  the  undersigned  to  the
attorney-in-fact.

         This Power of Attorney  shall remain in full force and effect until the
undersigned has filed such Schedule 13E-3 (including amendments thereto), unless
earlier  revoked  by the  undersigned  in a  signed  writing  delivered  to each
attorney-in-fact.  This Power of  Attorney  does not  revoke any other  power of
attorney that the undersigned has previously granted.

         IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney
to be executed effective as of the date written below.

                                               /s/ KENNETH LOFFREDO
                                          --------------------------------------
                                          Signature


                                                   KENNETH LOFFREDO
                                          --------------------------------------
                                          Type or Print Name


                                                   MAY 28, 1999
                                          --------------------------------------
                                          Date


<PAGE>

                                POWER OF ATTORNEY
                          FOR EXECUTING SCHEDULE 13E-3

         Know all by these presents, that the undersigned hereby constitutes and
appoints each of James M. Greenwood, Richard A. Parr II and Daniel J. Thomas the
undersigned's true and lawful attorney-in-fact to:

(1)      execute  for  and  on  behalf  of  the  undersigned  a  Schedule  13E-3
         (including  amendments thereto) in accordance with Section 13(e) of the
         Securities Exchange Act of 1934 and the rules thereunder;

(2)      do and  perform  any and all acts for and on behalf of the  undersigned
         that may be  necessary  or  desirable  to complete and execute any such
         Schedule 13E-3  (including  amendments  thereto) and file that Schedule
         with the  Securities and Exchange  Commission and any other  authority;
         and

(3)      take any other action of any type  whatsoever  in  connection  with the
         foregoing that, in the opinion of any such attorney-in-fact,  may be of
         benefit  to,  in the best  interest  of,  or  legally  required  of the
         undersigned,  it being  understood  that the documents  executed by the
         attorney-in-fact on behalf of the undersigned pursuant to this Power of
         Attorney  shall be in such  form  and  shall  contain  such  terms  and
         conditions    as   the    attorney-in-fact    may    approve   in   the
         attorney-in-fact's discretion.

         The undersigned hereby grants to each such  attorney-in-fact full power
and  authority  to do and  perform  all  and  every  act  and  thing  whatsoever
requisite,  necessary  or proper to be done in the exercise of any of the rights
and  powers  herein  granted,  as  fully  to all  intents  and  purposes  as the
undersigned  might  or  could  do if  personally  present,  with  full  power of
substitution  or revocation,  hereby  ratifying and confirming all that any such
attorney-in-fact  shall  lawfully do or cause to be done by virtue of this Power
of  Attorney  and  the  rights  and  powers  herein  granted.   The  undersigned
acknowledges  that each  attorney-in-fact,  in serving in such  capacity  at the
request  of  the  undersigned,   is  not  assuming  any  of  the   undersigned's
responsibilities  to comply with  Section 13 of the  Securities  Exchange Act of
1934.

         The undersigned agrees that each  attorney-in-fact may rely entirely on
information   furnished   orally  or  in  writing  by  the  undersigned  to  the
attorney-in-fact.

         This Power of Attorney  shall remain in full force and effect until the
undersigned has filed such Schedule 13E-3 (including amendments thereto), unless
earlier  revoked  by the  undersigned  in a  signed  writing  delivered  to each
attorney-in-fact.  This Power of  Attorney  does not  revoke any other  power of
attorney that the undersigned has previously granted.

         IN WITNESS  WHEREOF,  the undersigned has caused this Power of Attorney
to be executed effective as of the date written below.

                                               /s/ THOMAS E. KIRALY
                                          --------------------------------------
                                          Signature


                                                   THOMAS E. KIRALY
                                          --------------------------------------
                                          Type or Print Name


                                                   MAY 28, 1999
                                          --------------------------------------
                                          Date




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