CONCENTRA MANAGED CARE INC
PRES14A, 1999-06-07
SPECIALTY OUTPATIENT FACILITIES, NEC
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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                            SCHEDULE 14A INFORMATION

Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934
                                (Amendment No. 2)
                                 ---------------

Filed by Registrant [ X ]
Filed by a Party other than the Registrant [ ]
Check the appropriate box:

[X]  Preliminary Proxy Statement
[ ]  Confidential,  for  Use  of the  Commission  Only (as  permitted  by  Rule
     14a-6(e)(2))
[ ]  Definitive Proxy Statement
[ ]  Definitive Additional Materials
[ ]  Soliciting Material Pursuant to ss.240.14a-11(c) or ss.240.14a-12


                          CONCENTRA MANAGED CARE, INC.
                (Name of Registrant as Specified in its Charter)

- --------------------------------------------------------------------------------
        (Name of Person Filing Proxy Statement if other than Registrant)


Payment of Filing Fee (Check the appropriate box):

[ ]  No fee required.
[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(4) and 0-11.
         (1)      Title of each class of securities to which the transaction
                  applies: Common Stock ("Concentra Common Stock"), par value
                  $0.01 per share, of Concentra Managed Care, Inc. (the
                  "Company").


         (2)      Aggregate number of securities to which transaction applies:
                  (i) 47,294,074 shares of Concentra Common Stock and (ii)
                  vested "in-the-money" options to purchase 1,212,945 shares of
                  Concentra Common Stock.


         (3)      Per unit price or other underlying value of transaction
                  computed pursuant to Exchange Act Rule 0-11 (set forth the
                  amount on which the filing fee is calculated and state how it
                  was determined): $16.50 per share in cash-out merger plus the
                  difference between $16.50 and the weighted average exercise
                  price of $6.48 for each share subject to a vested "in the
                  money" option.

         (4)      Proposed maximum aggregate value of the transaction:
                  47,294,074 shares of Concentra Common Stock x $16.50 per share
                  = $780,352,221 $12,153,708.90 to be paid to option holders
                  Total proposed maximum aggregate value of the transaction:
                  $792,505,929.90

         (5)      Total fee paid:  $158,501.19 (wired to Mellon Bank, N.A. on
                  March 29, 1999).

[X]  Fee paid previously with preliminary materials.

[ ]  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2) and identify the filing for which the offsetting fee was paid
     previously. Identify the previous filing by registration statement number,
     or the Form or Schedule and the date of its filing.


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                         CONCENTRA MANAGED CARE, INC.
                                 312 UNION WHARF
                           BOSTON, MASSACHUSETTS 02109


                                                          ________________, 1999

Dear Stockholders:

     You are cordially invited to attend a Special Meeting of Stockholders of
Concentra Managed Care, Inc. to be held on _____________, 1999, at 10:00 a.m.,
local time, at ___________________ _________________________. The purpose of the
special meeting is for you to vote upon a merger that, if consummated, will
result in your receiving $16.50 in cash per share for your shares of Concentra
common stock, subject to your appraisal rights under Delaware law.

     If you approve the merger, Yankee Acquisition Corp., a newly formed
Delaware corporation, will be merged with and into Concentra with Concentra
being the surviving corporation in the merger. Yankee was created only to engage
in the merger and was organized and is currently owned by Welsh, Carson,
Anderson & Stowe VIII, L.P. Welsh, Carson, Anderson & Stowe VIII, L.P. owns
14.9% of Concentra's common stock. Its affiliate was an investor in OccuSystems,
Inc., which merged with CRA Managed Care, Inc. to form Concentra in 1997.
Affiliates of Ferrer Freeman Thompson & Co., LLC have agreed to purchase about
7.0% of Yankee's capital stock prior to the merger.

     Concentra's Board of Directors formed a special committee consisting of two
independent directors to evaluate the merger. The special committee has
unanimously recommended to the Board that the merger be approved. In connection
with the merger, BT Alex. Brown Incorporated, Concentra's financial advisor,
delivered to the Board and the special committee an opinion as to the fairness,
from a financial point of view, of the merger consideration to the holders of
Concentra common stock, other than Welsh, Carson, Anderson & Stowe VIII, L.P. or
its affiliates. The written opinion of BT Alex. Brown dated March 2, 1999 is
attached as Appendix B to the enclosed proxy statement, and you should read it
carefully in its entirety.

     THE BOARD HAS DETERMINED THAT THE MERGER IS ADVISABLE AND FAIR TO YOU AND
IN YOUR BEST INTEREST. THE BOARD THEREFORE RECOMMENDS THAT YOU APPROVE AND ADOPT
THE MERGER AGREEMENT.

     We cannot complete the merger unless we obtain the necessary government
approvals and unless the stockholders approve it. The accompanying proxy
statement provides detailed information about the proposed merger, and it
includes a copy of the merger agreement attached as Appendix A.

     Please give all of this information your careful attention. Approval of the
merger at the special meeting will require the affirmative vote of holders of a
majority of the outstanding shares of Concentra common stock entitled to vote at
the special meeting. Whether or not you plan to attend, it is important that
your shares are represented at the special meeting. A failure to vote will count
as a vote against the merger. Accordingly, you are requested to promptly
complete, sign and date the enclosed proxy card and return it in the envelope
provided, whether or not you plan to attend. This will not prevent you from
voting your shares in person if you later choose to attend the special meeting.
If the merger is approved by the stockholders, you will receive instructions for
surrendering your Concentra share certificates and a letter of transmittal to be
used for this purpose. You should not submit your share certificates for
exchange until you have received the instructions and the letter of transmittal.

                  Sincerely,



                  /s/ Daniel J. Thomas
                  ------------------------------------
                  Daniel J. Thomas
                  President and Chief Executive Officer


This proxy statement is dated  _____________,  1999 and is first being mailed to
Concentra stockholders on or about _____________, 1999.

<PAGE>

                          CONCENTRA MANAGED CARE, INC.
                                 312 UNION WHARF
                           BOSTON, MASSACHUSETTS 02109
                                  617/367-2163
                    -----------------------------------------


                    NOTICE OF SPECIAL MEETING OF STOCKHOLDERS

                        TO BE HELD ON _____________, 1999

To the Stockholders of Concentra Managed Care, Inc.:

     This is a notice that a Special Meeting of Stockholders of Concentra
Managed Care, Inc., a Delaware corporation, will be held on __________, 1999 at
10:00 a.m., local time, at ____________________________. The purpose of this
meeting is for you to:

     1.  Consider and vote upon a proposal to approve and adopt an Amended and
         Restated Agreement and Plan of Merger, dated as of March 24, 1999.
         Pursuant to the merger agreement, Yankee Acquisition Corp., a newly
         formed Delaware corporation, will be merged with and into Concentra.
         Each outstanding share of Concentra common stock will be converted into
         the right to receive $16.50 in cash, without interest, other than
         shares held by Concentra stockholders who are entitled to and have
         perfected their dissenters' appraisal rights. Shares held by Concentra,
         its subsidiaries, and Yankee or its affiliates will be canceled in the
         merger. A copy of the merger agreement is attached as Appendix A to and
         is described in the accompanying proxy statement.

     2.  Consider and act upon any other matters as may properly come before the
         special meeting or any adjournments or postponements of the special
         meeting.

     Concentra's Board of Directors has determined that only holders of shares
of Concentra common stock at the close of business on _______________, 1999,
will be entitled to notice of, and to vote at, the special meeting or any
adjournments or postponements of the special meeting. A form of proxy and a
proxy statement containing more detailed information with respect to the matters
to be considered at the special meeting accompany and form a part of this
notice.

                                           By order of the Board of Directors,


                                          --------------------------------------
                                                Richard A. Parr II
                                                Executive Vice President,
                                                General Counsel and
                                                Corporate Secretary
Dallas, Texas
__________, 1999                          _______________________

     WHETHER OR NOT YOU ARE ABLE TO ATTEND THE SPECIAL MEETING, PLEASE SIGN,
DATE AND RETURN THE ACCOMPANYING PROXY CARD PROMPTLY IN THE ENCLOSED ENVELOPE
WHICH REQUIRES NO POSTAGE IF MAILED IN THE UNITED STATES. PLEASE DO NOT SEND IN
ANY CERTIFICATES FOR YOUR SHARES AT THIS TIME.

     THE MERGER HAS NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
EXCHANGE COMMISSION, NOR HAS THE COMMISSION PASSED UPON THE FAIRNESS OR MERITS
OF THE MERGER OR UPON THE ACCURACY OR ADEQUACY OF THE INFORMATION CONTAINED IN
THIS DOCUMENT. ANY REPRESENTATION TO THE CONTRARY IS UNLAWFUL.

     You have the right to dissent from the merger and to receive payment of the
"fair value" of your shares. To do so, you must comply with the procedures set
forth in Section 262 of the Delaware General Corporation Law. See "Rights of
Dissenting Stockholders" in the proxy statement that accompanies this notice and
the full text of Section 262 of the Delaware General Corporation Law, which is
attached as Appendix C and is described in the accompanying proxy statement.

<PAGE>


                               TABLE OF CONTENTS



QUESTIONS AND ANSWERS ABOUT THE MERGER .....................................  1

SUMMARY ....................................................................  3
     The Companies .........................................................  3
     The Special Meeting ...................................................  3
     Record Date; Voting Power .............................................  3
     Voting Procedures .....................................................  3
     Recommendations .......................................................  3
     Opinion of Concentra's Financial Advisor ..............................  3
     Terms of the Merger Agreement .........................................  4
     Accounting Treatment ..................................................  5
     Interests that Differ from Your Interests .............................  5
     Regulatory Approvals ..................................................  5
     Dissenters' Appraisal Rights ..........................................  5
     Historical Market Information .........................................  6
     Selected Consolidated Financial Data ..................................  7
     Certain Projections ................................................... 14
     Cautionary Statement Concerning Forward-looking Information ........... 14

SPECIAL FACTORS ............................................................ 15
     Background of the Merger .............................................. 15
     The Special Committee's and the Board's Recommendation ................ 20
     Opinion of Concentra's Financial Advisor .............................. 23
     Purpose and Reasons of WCAS and the Members of
       Management for the Merger ........................................... 28
     Position of WCAS and the Members of Management
       as to Fairness of the Merger ........................................ 28
     Interests of Certain Persons in the Merger ............................ 28
     Certain Effects of the Merger ......................................... 30
     Financing of the Merger ............................................... 30
     Conduct of Concentra's Business After the Merger ...................... 32
     Material Federal Income Tax Consequences .............................. 32

THE SPECIAL MEETING ........................................................ 33
     Date, Time and Place of the Special Meeting ........................... 33
     Matters to be Considered at the Special Meeting ....................... 33
     Proxy Solicitation .................................................... 33
     Record Date and Quorum Requirement .................................... 33
     Voting Procedures ..................................................... 34
     Voting and Revocation of Proxies ...................................... 34
     Effective Time of the Merger and Payment for Shares ................... 34
     Other Matters to Be Considered ........................................ 35

THE MERGER ................................................................. 35
     General Description ................................................... 35
     Certain Terms of the Merger Agreement ................................. 35
     Anticipated Accounting Treatment ...................................... 44
     Governmental Approvals ................................................ 44
     Litigation Relating to the Merger ..................................... 44
     Estimated Fees and Expenses of the Merger ............................. 44

RIGHTS OF DISSENTING STOCKHOLDERS .......................................... 45

PRINCIPAL STOCKHOLDERS AND STOCK OWNERSHIP OF MANAGEMENT AND OTHERS ........ 47

CERTAIN INFORMATION CONCERNING CONCENTRA ................................... 48

CERTAIN INFORMATION CONCERNING YANKEE ...................................... 49
     Yankee ................................................................ 49
     Equity Investors ...................................................... 49

PURCHASES OF COMMON STOCK BY CERTAIN PERSONS ............................... 51

INDEPENDENT AUDITORS ....................................................... 52

STOCKHOLDER PROPOSALS ...................................................... 52

OTHER MATTERS .............................................................. 52

WHERE YOU CAN FIND MORE INFORMATION ........................................ 52

INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE ............................ 53




Appendices:
A  --  Merger Agreement
B  --  Opinion of BT Alex. Brown Incorporated
C  --  Section 262 of the Delaware General Corporation Law
99.1   Form of Concentra's Proxy


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                          CONCENTRA MANAGED CARE, INC.
                                 312 UNION WHARF
                           BOSTON, MASSACHUSETTS 02109
                                  617/367-2163

                                 PROXY STATEMENT

                       FOR SPECIAL MEETING OF STOCKHOLDERS
                      To Be Held On ________________, 1999


                     QUESTIONS AND ANSWERS ABOUT THE MERGER

         Q:       WHAT WILL HAPPEN IN THE MERGER?

         A:       In the merger, Yankee will be merged with and into Concentra
                  with Concentra being the surviving corporation. If you are a
                  stockholder of Concentra at the time of the merger, you will
                  receive a $16.50 cash payment for each of your outstanding
                  shares of Concentra common stock, unless you exercise and
                  perfect your dissenters' appraisal rights. Shares held by
                  Concentra, its subsidiaries, Yankee or its affiliates will be
                  canceled in the merger. After the merger, Concentra will be
                  owned by the stockholders of Yankee and you will no longer own
                  stock in Concentra. To review the structure of the merger in
                  greater detail, see pages 35 through 44.

         Q:       WHAT WILL I RECEIVE IN THE MERGER?

         A:       You will receive $16.50 in cash, without interest, for each
                  share of Concentra common stock that you own. This is the
                  "merger consideration." For example: If you own 100 shares of
                  Concentra common stock, you will receive $1,650.00 in cash
                  upon completion of the merger.

         Q:       WHY IS CONCENTRA BEING MERGED?

         A:       Concentra's board of directors believes that the merger of
                  Yankee into Concentra and the $16.50 per share you will
                  receive in the merger is fair and is in your best interest.
                  The board made the determination after exploring strategic
                  alternatives and a number of third party proposals to acquire
                  Concentra. To review the background and reasons for the merger
                  in greater detail, see pages 15 through 20.

         Q:       WHY WAS THE SPECIAL COMMITTEE FORMED?

         A:       Because certain of Concentra's directors had potential
                  conflicts of interest in evaluating a number of third-party
                  proposals to acquire Concentra (including the merger), the
                  board appointed a special committee of disinterested directors
                  to review and evaluate the proposals. At the time the special
                  committee was formed, the board believed that seven of the
                  nine directors had potential conflicts of interest. The
                  special committee has determined that the merger is fair to
                  you and in your best interest.

         Q:       WHEN DO YOU EXPECT THE MERGER TO BE COMPLETED?

         A:       We are working to complete the merger during the month of
                  July, 1999.

         Q:       WHAT ARE THE TAX CONSEQUENCES OF THE MERGER TO ME?

         A:       Your receipt of the merger consideration will be a taxable
                  transaction for federal income tax purposes. To review the
                  federal income tax consequences to you in greater detail, see
                  page 32.

                  Your tax consequences will depend on your personal situation.
                  You should consult your tax advisors for a full understanding
                  of the tax consequences of the merger to you.

         Q:       WHAT AM I BEING ASKED TO VOTE UPON?

         A:       You are being asked to approve and adopt the merger agreement,
                  which provides for the merger of Yankee into Concentra.

                  THE SPECIAL COMMITTEE HAS UNANIMOUSLY APPROVED AND ADOPTED THE
                  MERGER AGREEMENT. THE BOARD HAS UNANIMOUSLY APPROVED AND
                  ADOPTED THE MERGER

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                                       1
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                  AGREEMENT. ACCORDINGLY, THE SPECIAL COMMITTEE AND THE BOARD
                  RECOMMEND VOTING FOR THE APPROVAL AND ADOPTION OF THE MERGER
                  AGREEMENT.

         Q:       WHAT DO I NEED TO DO NOW?

         A:       Simply indicate on your proxy card how you want to vote, and
                  sign, date and mail it in the enclosed envelope as soon as
                  possible, so that your shares will be represented at the
                  special meeting. Approval of the merger requires the
                  affirmative vote of a majority of the outstanding shares of
                  Concentra common stock entitled to vote on the proposal.

         Q:       WHAT HAPPENS IF I DON'T RETURN A PROXY CARD?

         A:       The failure to return your proxy card will have the same
                  effect as voting against the merger.

         Q:       MAY I VOTE IN PERSON?

         A:       Yes. You may attend the special meeting and vote your shares
                  in person, rather than signing and mailing your proxy card.

         Q:       MAY I CHANGE MY VOTE AFTER I HAVE MAILED MY SIGNED PROXY CARD?

         A:       Yes. You may change your vote at any time before your proxy is
                  voted at the special meeting by following the instructions as
                  detailed in "Voting and Revocation of Proxies" on page 34.
                  Before your proxy is voted, you may submit a new proxy or you
                  may attend the special meeting and vote in person.

         Q:       IF MY SHARES ARE HELD IN "STREET NAME" BY MY BROKER, WILL MY
                  BROKER VOTE MY SHARES FOR ME?

         A:       Your broker will vote your shares of common stock only if you
                  provide instructions on how to vote. You should instruct your
                  broker how to vote your shares, following the directions your
                  broker provides. If you do not provide instructions to your
                  broker, your shares will not be voted and they will be counted
                  as votes against the proposal to approve and adopt the merger
                  agreement.

         Q:       SHOULD I SEND IN MY STOCK CERTIFICATES NOW?

         A:       No. After the merger is completed Concentra will send you
                  written instructions for exchanging your Concentra common
                  stock certificates for the merger consideration.

         Q:       WHO CAN HELP ANSWER MY QUESTIONS?

         A:       If you have additional questions about the merger, you should
                  contact:

                               Richard A. Parr II
                                 General Counsel
                          Concentra Managed Care, Inc.
                               5080 Spectrum Drive
                              Suite 400, West Tower
                              Addison, Texas 75001
                             Telephone: 972/364-8043

                                       or
                            Georgeson & Company Inc.
                      the proxy solicitor who may be called
                          toll-free at 1-800-223-2064.

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                                       2
<PAGE>

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                                     SUMMARY

              THIS SUMMARY HIGHLIGHTS SELECTED INFORMATION FROM THIS DOCUMENT
         AND MAY NOT CONTAIN ALL OF THE INFORMATION THAT IS IMPORTANT TO YOU.
         FOR A MORE COMPLETE UNDERSTANDING OF THE MERGER AND FOR A MORE COMPLETE
         DESCRIPTION OF THE LEGAL TERMS OF THE MERGER, YOU SHOULD READ CAREFULLY
         THIS ENTIRE DOCUMENT AND THE OTHER AVAILABLE INFORMATION REFERRED TO IN
         "WHERE YOU CAN FIND MORE INFORMATION" ON PAGE 37.

         THE COMPANIES

         CONCENTRA MANAGED CARE, INC.
         312 Union Wharf
         Boston, Massachusetts  02109
         617/367-2163

              Concentra is the leading provider of healthcare management and
         cost containment services to the workers' compensation, disability and
         auto insurance markets. Concentra also provides out-of-network medical
         claims review to the group health marketplace and performs non-injury
         services for over 80,000 local employers.

         YANKEE ACQUISITION CORP.
         c/o Welsh, Carson, Anderson
              & Stowe
         320 Park Avenue, Suite 2500
         New York, New York  10022-6815
         212/893-4500

              Yankee was organized and is currently owned by Welsh, Carson,
         Anderson & Stowe VIII, L.P. Affiliates of Ferrer Freeman Thompson &
         Co., LLC have agreed to acquire about 7.0% of Yankee's outstanding
         capital stock prior to the merger. Both Welsh Carson and Ferrer Freeman
         are private investment funds. Yankee was created only to enter into the
         merger agreement and to complete the merger and related transactions.

         THE SPECIAL MEETING

              The special meeting will be held on ___________, 1999, at 10:00
         a.m., local time, at ________________ _____________________. At the
         special meeting, you will be asked to consider and vote upon a proposal
         to approve and adopt the merger agreement.

         RECORD DATE; VOTING POWER

              Holders of record of Concentra common stock at the close of
         business on ______________, 1999 are entitled to notice of and to vote
         at the special meeting. As of that date, there were _____ shares of
         Concentra common stock issued and outstanding held by approximately
         ____ holders of record. If you held Concentra common stock on the
         record date, you are entitled to one vote per share on any matter that
         may properly come before the special meeting.

         VOTING PROCEDURES

              Approval by the Concentra common stockholders of the merger
         agreement will require the affirmative vote of the holders of a
         majority of the outstanding shares of Concentra common stock including
         shares voted by Welsh, Carson, Anderson & Stowe VIII, L.P. and
         Concentra's directors and officers. Approval of the merger agreement
         does not require the approval of a majority of unaffiliated
         stockholders.

         RECOMMENDATIONS

              Because certain of Concentra's directors had actual or potential
         conflicts of interest in evaluating a number of third-party proposals
         to acquire Concentra (including the merger), the board appointed the
         special committee to review and evaluate the proposals. The special
         committee unanimously recommended to the board that the merger
         agreement be approved. Following the unanimous recommendation of the
         special committee, the board determined that the merger, the merger
         agreement and the transactions contemplated thereby were advisable and
         fair to you and in your best interest. THE SPECIAL COMMITTEE AND THE
         BOARD RECOMMEND THAT YOU VOTE "FOR" THE APPROVAL AND ADOPTION OF THE
         MERGER AGREEMENT. You also should refer to the reasons that the special
         committee and the board considered in determining whether to approve
         and adopt the merger agreement beginning on pages 20 through 23.

         OPINION OF Concentra's FINANCIAL ADVISOR

              The board and special committee have received an opinion of
         Concentra's financial advisor, BT Alex. Brown Incorporated, as to the
         fairness, from a financial point of view, of the merger consideration
         to the holders of Concentra common stock, other than Welsh Carson or
         its affiliates. The full text of the written opinion of BT Alex. Brown
         Incorporated dated March 2, 1999 is attached to this proxy statement as
         Appendix B, and you should read it carefully in its entirety. THE
         OPINION OF BT ALEX.

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                                       3

<PAGE>
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              BROWN INCORPORATED IS DIRECTED TO THE BOARD AND SPECIAL COMMITTEE
         AND DOES NOT CONSTITUTE A RECOMMENDATION TO YOU AS TO HOW YOU SHOULD
         VOTE WITH RESPECT TO MATTERS RELATING TO THE PROPOSED MERGER.

         TERMS OF THE MERGER AGREEMENT

              The merger agreement is attached to this proxy statement as
         Appendix A. You should read the merger agreement in its entirety. It is
         the legal document that governs the merger.

              GENERAL. The merger agreement provides that Yankee will be merged
         with and into Concentra, with Concentra being the surviving
         corporation. As a result of the merger, you will receive $16.50 in cash
         for each share of Concentra common stock that you own, unless you
         exercise and perfect your dissenters' appraisal rights. Shares held by
         Concentra, its subsidiaries, Yankee or its affiliates will be canceled
         in the merger.

              CONDITIONS TO THE MERGER. The completion of the merger depends
         upon the satisfaction of a number of conditions, including:

               o  the continued accuracy of each party's representations and
                  warranties and the fulfillment of each party's promises
                  contained in the merger agreement;

               o  the adoption of the merger agreement by the affirmative vote
                  of the holders of a majority of the outstanding shares of
                  Concentra common stock;

               o  the absence of any order or regulation of any court or
                  governmental entity preventing or prohibiting the merger;

               o  the receipt of necessary governmental approvals and the
                  termination or expiration of any applicable regulatory waiting
                  periods;

               o  Yankee's receipt of financing to consummate the merger; and

               o  the board's receipt from a valuation firm of a solvency letter
                  addressed to the board as to the solvency of the surviving
                  corporation after giving effect to the merger and Yankee's
                  contemplated merger financing arrangements.

         Each party may, at its option, waive the satisfaction of any condition
         to such party's obligations under the merger agreement. Concentra
         currently has no intention to waive any condition to its obligations
         under the merger agreement. In the event of any waiver by Concentra of
         a material condition under the merger agreement, the merger agreement
         will be amended and stockholder approval of the merger agreement,
         including the change resulting from the waiver, will be obtained. EVEN
         IF THE STOCKHOLDERS APPROVE THE MERGER, THERE CAN BE NO ASSURANCE THAT
         THE MERGER WILL BE CONSUMMATED.

              TERMINATION. Either Concentra or Yankee may terminate the merger
         agreement under certain circumstances, including if:

               o  the merger has not been completed by August 31, 1999, provided
                  that the delay is not due to a breach of any obligation under
                  the merger agreement by the party seeking to terminate;

               o  Concentra fails to obtain the required stockholder approval at
                  the special meeting; or

               o  any court in the United States or other governmental entity
                  has issued a final and non-appealable order or other action
                  that in any way prohibits the merger.

              The merger agreement can be terminated under other circumstances
         which are described on page 42.

              FEES AND EXPENSES. Concentra will be required to pay Yankee a
         termination fee of $25.0 million and the expenses of Yankee up to $4.0
         million if:

               o  the merger agreement is terminated by Yankee in specific
                  circumstances involving Concentra entering into a business
                  transaction with a third party;

               o  the merger agreement is terminated by Concentra because in the
                  good faith judgment of the board, as advised by outside
                  counsel, the board determines that termination is required
                  because of a third party's acquisition proposal; or

               o  the merger agreement is terminated by Yankee because the board
                  has withdrawn or modified, in any way materially adverse to
                  Yankee, the board's recommendation or approval of the merger
                  agreement.

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                                       4

<PAGE>


         ACCOUNTING TREATMENT

              The merger will be accounted for as a recapitalization for
         accounting purposes. Accordingly, the historical basis of Concentra's
         assets and liabilities will not be affected by the merger. After the
         recapitalization, Ferrer Freeman will own a 7% interest in Concentra.
         This interest will be held in a separate class of common stock which is
         identical to the original common stock of Concentra except it will have
         the ability to elect a member of the board of Concentra. Ferrer Freeman
         has no formal or informal rights to approve or veto transactions. The
         rights granted to Ferrer Freeman are protective rights rather than
         participating rights and, as such, Ferrer Freeman and Welsh Carson
         should not be construed as members of a collaborative group.

         INTERESTS THAT DIFFER FROM YOUR INTERESTS

              INTERESTS OF CONCENTRA'S MANAGEMENT. Certain members of
         management, including John K. Carlyle, W. Tom Fogarty, M.D., James M.
         Greenwood, Thomas E. Kiraly, Kenneth Loffredo, Richard A. Parr II and
         Daniel J. Thomas (collectively, the "Members of Management"), have
         interests in the merger that are different from, or in addition to,
         yours as a Concentra stockholder. If the merger is consummated, Messrs.
         Carlyle and Thomas will be designated as members of the board of
         directors of Concentra and all of these Members of Management other
         than Mr. Carlyle will remain as senior management of Concentra pursuant
         to amended and restated employment agreements that provide for
         severance benefits if their employment with Concentra is terminated
         following the merger and employment retention incentives, including
         grants of options to acquire common stock of Concentra following the
         merger. In addition, Members of Management will receive a maximum
         aggregate cash payment of $7,530,000 for vested options and restricted
         stock that they hold based on a price of $16.50 per share of restricted
         stock and the excess of $16.50 over the exercise price of the options.
         Also, Concentra will continue certain indemnification arrangements and
         director's and officer's liability insurance for existing directors and
         officers of Concentra after the merger. Members of Management will
         continue to hold an interest in Concentra after the merger.

              THE SPECIAL COMMITTEE. The members of the special committee are
         not Concentra employees, are not involved as participants in the
         proposed transaction and have no past or present relationship with
         Welsh Carson, Ferrer Freeman Thompson & Co., LLC or any of the other
         parties who delivered expressions of interest in acquiring Concentra.
         Each member of the special committee received a $25,000 fee for serving
         on the special committee, plus $2,000 per special committee meeting
         attended in person and $1,000 per telephonic meeting of the special
         committee attended. Each member of the special committee also received
         reimbursement of out-of-pocket expenses incurred in connection with
         service on the special committee. The members of the special committee
         believe that the foregoing arrangements do not affect their
         independence or impartiality.

         REGULATORY APPROVALS

              Concentra is required to make filings with or obtain approvals
         from certain regulatory authorities in connection with the merger.
         These consents and approvals include the termination or expiration of a
         waiting period with regard to filings with the Federal Trade Commission
         and the Department of Justice under the Hart-Scott-Rodino Antitrust
         Improvements Act of 1976, as amended. On May 5, 1999, the Federal Trade
         Commission granted Concentra's request for early termination of the
         waiting period under the Hart-Scott-Rodino Antitrust Improvements Act.

         DISSENTERS' APPRAISAL RIGHTS

              If you do not vote in favor of the proposal to approve and adopt
         the merger agreement and you comply strictly with the applicable
         provisions of Section 262 of the Delaware General Corporation Law, you
         have the right to dissent and be paid cash for the "fair value" of your
         shares of Concentra common stock. This payment may be more than, the
         same as, or less than the merger consideration of $16.50 a share. To
         perfect these appraisal rights with respect to the merger, you must
         follow the required procedures precisely. The applicable provisions of
         Section 262 of the Delaware General Corporation Law are attached to
         this proxy statement as Appendix C.


- --------------------------------------------------------------------------------
                                       5

<PAGE>
- --------------------------------------------------------------------------------
                          HISTORICAL MARKET INFORMATION

              Concentra common stock is traded on the Nasdaq National Market
         under the symbol "CCMC." The following table sets forth, for the
         periods indicated, the high and low sales prices per share as reported
         on Nasdaq.

                                               High                Low
                                              ------             -------
        1997
        First Quarter ......................   $28.00             $22.00
        Second Quarter .....................   $29.50             $17.25
        Third Quarter ......................   $35.88             $27.50
        Fourth Quarter .....................   $38.50             $31.38

        1998
        First Quarter ......................   $35.50             $27.25
        Second Quarter .....................   $34.25             $22.00
        Third Quarter ......................   $26.00             $ 5.63
        Fourth Quarter .....................   $12.50             $ 5.44

        1999
        First Quarter ......................   $14.6875           $10.0625
        Second Quarter (through June __, 1999) $______            $______

              On March 2, 1999, the last trading day prior to announcement of
         the execution of the merger agreement, the closing price per share of
         Concentra common stock as reported on Nasdaq was $11.625. On _________,
         1999, Concentra common stock closed at $_______ per share. Concentra
         urges you to obtain current market quotations before making any
         decision with respect to the merger.

              Since its inception, Concentra has not paid any cash dividends on
         its common stock. Under the merger agreement, Concentra has agreed not
         to pay any dividends on Concentra common stock prior to the closing of
         the merger. Concentra's revolving credit facility with its senior
         lenders also prohibits Concentra from paying dividends and making other
         distributions on Concentra common stock.


- --------------------------------------------------------------------------------
                                       6
<PAGE>
- --------------------------------------------------------------------------------

                      SELECTED CONSOLIDATED FINANCIAL DATA

              The table below presents selected consolidated historical
         financial data that has been derived from Concentra's audited
         consolidated financial statements. You should read the selected
         financial data in conjunction with Concentra's separate historical
         consolidated financial statements, related notes and other financial
         information incorporated by reference into this proxy statement.

<TABLE>
<CAPTION>
                                                                                                        THREE MONTHS
                                                           YEAR ENDED DECEMBER 31,                     ENDED MARCH 31,
                                            --------------------------------------------------       -------------------
                                            1994       1995       1996        1997        1998        1998        1999
                                            -----      ------    ------       ----        ----        ----       -----

         <S>                               <C>        <C>        <C>         <C>         <C>         <C>         <C>

         STATEMENT OF OPERATIONS DATA:             (IN THOUSANDS, EXCEPT PER SHARE DATA)
                  Revenue                  $223,499   $305,355   $372,683    $489,318    $611,056    $144,282    $155,411
                  Gross profit               37,093     62,435     82,755     116,679     141,759      34,384      31,674
                  Non-recurring charges          --        898        964      38,625      33,114      12,600          --
                  Operating income           15,928     29,446     45,194      32,315      55,200       9,124      14,216
                  Income before taxes        10,088     24,246     41,476      21,062      41,794       5,414      10,553
                  Provision for income        6,802      7,771     13,437      11,062      19,308       4,567       4,485
                    taxes (1)
                  Net income before
                   extraordinary items (1)    3,286     16,475     28,039      10,000      22,486         847       6,068

                  Basic earnings per
                   share before                          $0.48      $0.69       $0.23       $0.48       $0.02       $0.13
                   extraordinary items

                  Basic weighted
                   average shares                       33,810     40,411      42,774      46,451      44,939      47,251
                   outstanding

                  Diluted earnings per
                    share before
                    extraordinary items                  $0.46      $0.65       $0.22       $0.47       $0.02       $0.13

                  Diluted weighted
                    average shares
                    outstanding                         35,939     43,344      46,895      47,827      47,769      47,882

         BALANCE SHEET:
                  Working capital          $ 19,117   $ 21,971   $116,439    $ 36,754    $201,871    $171,808    $202,457
                  Total assets              113,672    188,530    367,900     482,035     653,368     580,159     667,523
                  Total debt                 83,785     34,639    142,229     206,600     327,925     298,381     327,900
                  Total stockholders'
                   equity (deficit)          (5,820)   109,383    178,146     206,441     239,875     205,068     247,652
           </TABLE>

           1) Prior to its recapitalization in March of 1994, CRA Managed Care,
              Inc. had elected to be taxed as an "S" corporation. In connection
              with its recapitalization, CRA Managed Care, Inc. was required to
              change from an "S" to a "C" corporation. This change resulted in
              CRA Managed Care, Inc. recording an incremental tax provision of
              $3,772,000 in the first quarter of 1994. Concentra's pro forma net
              income for 1994 would have been $3,446,000 higher had CRA Managed
              Care, Inc. been subject to federal and state income taxes during
              the entire period based upon an effective tax rate indicative of
              the statutory rate in effect during the period.


- --------------------------------------------------------------------------------
                                       7
<PAGE>

- --------------------------------------------------------------------------------
                          CONCENTRA MANAGED CARE, INC.
             CONSOLIDATED PRO FORMA FINANCIAL STATEMENTS (UNAUDITED)

                  On March 2, 1999, Concentra entered into a definitive
         agreement to merge with Yankee, a corporation formed by Welsh, Carson,
         Anderson & Stowe and a 14.9% stockholder of Concentra. Concentra's
         board of directors unanimously approved the transaction based upon the
         recommendation of its special committee of the board of directors,
         which was formed on October 1, 1998 to evaluate strategic alternatives
         in response to several unsolicited expressions of interest regarding
         the possible acquisition of some or all of Concentra's common stock. On
         March 24, 1999, Concentra entered into an amended and restated
         agreement and plan of merger with Yankee. Pursuant to the amended
         merger agreement, Welsh Carson will acquire approximately 93% and funds
         managed by Ferrer Freeman Thompson & Co., LLC will acquire
         approximately 7% of the post-merger shares of common stock of Concentra
         for $16.50 per share. As a result of the merger, each outstanding share
         of Concentra common stock will be converted into the right to receive
         $16.50 in cash.

                  The transaction is valued at approximately $1,100,000,000,
         including the refinancing of $327,750,000 of the 6% and 4.5%
         convertible subordinated notes of Concentra that contain change in
         control provisions in the related indentures. The transaction is
         structured to be accounted for as a recapitalization and is expected to
         be completed in July of 1999. The transaction is conditioned upon,
         among other things, approval of the stockholders of Concentra, receipt
         of financing and certain regulatory approvals as more particularly
         described in this proxy statement.

                  To finance the acquisition of Concentra, Welsh Carson will
         invest approximately $392,432,000 in equity financing, including the
         value of shares already owned by Welsh Carson, and up to $110,000,000
         in subordinated indebtedness. Additionally, Ferrer Freeman will invest
         approximately $30,600,000 in equity. Welsh Carson has also received
         commitments from various lenders to provide financing of $190,000,000
         in senior subordinated notes, $375,000,000 in term loans and a
         $100,000,000 revolving credit facility to replace Concentra's existing
         senior credit facility. Additionally, Concentra would utilize excess
         cash on hand at the time of the merger to help finance the purchase of
         Concentra common stock. Simultaneous with the right to receive cash for
         shares, Yankee would merge with and into Concentra with Concentra
         surviving.

                  The following consolidated pro forma financial statements give
         effect to the merger using the recapitalization method of accounting,
         after giving effect to the pro forma adjustments described in the
         accompanying notes. These unaudited consolidated pro forma financial
         statements are not required disclosure in this proxy filing but they
         have been included for informational purposes only to assist the reader
         in understanding the financial aspects of the transaction. The current
         stockholders of Concentra, other than WCAS and its affiliates, will
         have no continuing financial interest in Concentra after the
         transaction. These unaudited consolidated pro forma financial
         statements have been prepared from, and should be read in conjunction
         with, Concentra's historical consolidated financial statements and
         notes thereto filed on Form 10-K which are incorporated by reference in
         this proxy statement.

                  The unaudited Consolidated Pro Forma Balance Sheet as of March
         31, 1999 gives effect to the merger as if it had occurred on March 31,
         1999 and the Consolidated Pro Forma Statement of Operations for the
         three months ended March 31, 1999 and the year ended December 31, 1998
         give effect to the merger as if it had occurred on January 1, 1999 and
         January 1, 1998, respectively. The Consolidated Pro Forma Financial
         Statements of Concentra do not purport to present the financial
         position or results of operations of Concentra had the merger been
         consummated at the dates indicated, nor is it necessarily indicative of
         future operating results or financial position of the merged companies.

                  As a result of the merger, Concentra will incur certain deal
         fees and financing costs of approximately $44,000,000. These costs will
         consist principally of banking and professional fees of approximately
         $17,500,000 associated with the issuance of new debt which will be
         capitalized as deferred finance costs and other banking, professional
         and transaction fees of $26,500,000 associated with the merger which
         will be expensed. The expensed portion of the these fees of
         $26,500,000, and the related tax benefit, have not been reflected on
         the Consolidated Pro Forma Statement of Operations, as they are
         one-time and unusual in nature.
- --------------------------------------------------------------------------------
                                       8
<PAGE>

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

                          CONCENTRA MANAGED CARE, INC.

                      Consolidated Pro Forma Balance Sheets
                           March 31, 1999 (Unaudited)
<TABLE>
<CAPTION>
                                                                                        PRO FORMA
                                                                    CONCENTRA          ADJUSTMENTS            PRO FORMA
                                                                 ---------------      ---------------      -----------------
                               ASSETS
<S>                                                                 <C>                 <C>                    <C>

         CURRENT ASSETS:
          Cash and cash equivalents ..........................      $ 92,753,000        $319,086,000 (1)       $ 38,535,000
                                                                                         675,000,000 (2)
                                                                                        (327,750,000)(2)
                                                                                        (676,554,000)(3)
                                                                                         (44,000,000)(4)
          Marketable securities .............................          5,003,000                  --              5,003,000
          Accounts receivable, net ..........................        137,272,000                  --            137,272,000
          Prepaid expenses, tax assets and other
           current assets ...................................         31,655,000           3,056,000 (5)         34,711,000
                                                                    ------------        ------------           ------------
             Total current assets ...........................        266,683,000         (51,162,000)           215,521,000
         NET PROPERTY AND EQUIPMENT .........................         89,048,000                  --             89,048,000
         GOODWILL AND OTHER INTANGIBLE
          ASSETS, NET .......................................        285,970,000                  --            285,970,000
         MARKETABLE SECURITIES ..............................         10,542,000                  --             10,542,000
         OTHER ASSETS .......................................         15,280,000          (7,453,000)(2)         25,327,000
                                                                                          17,500,000 (2)
                                                                    ------------        ------------           ------------
                                                                    $667,523,000        $(41,115,000)          $626,408,000
                                                                    ============        ============           ============

         LIABILITIES AND STOCKHOLDERS' EQUITY (DEFICIT)

         CURRENT LIABILITIES:
          Revolving Credit Facility .........................       $         --        $         --           $         --
          Current portion of long-term debt .................             55,000                  --                 55,000
          Accounts payable and accrued expenses .............         64,171,000                  --             64,171,000
                                                                      ----------                  --             ----------
             Total current liabilities ......................         64,226,000                  --             64,226,000
         LONG-TERM DEBT, NET OF CURRENT
          PORTION ...........................................        327,845,000        (327,750,000)(2)        675,095,000
                                                                                         675,000,000 (2)
         DEFERRED INCOME TAXES AND OTHER
          LIABILITIES .......................................         27,800,000                  --             27,800,000
         STOCKHOLDERS' EQUITY (DEFICIT):
          Common stock ......................................            473,000            (473,000)(7)            256,000
                                                                                             256,000 (6)

          Paid-in capital ...................................        272,420,000         422,776,000 (6)                 --
                                                                                        (695,196,000)(7)
          Treasury stock ....................................                 --        (676,554,000)(3)                 --
                                                                                        (103,946,000)(8)
                                                                                         780,500,000 (7)
          Unrealized gain on investments ....................              1,000                  --                  1,000
          Retained deficit ..................................        (25,242,000)        (26,500,000)(4)       (140,970,000)
                                                                                          (7,453,000)(2)
                                                                                           3,056,000 (5)
                                                                                         (84,831,000)(7)
                                                                    ------------       -------------          -------------
             Total stockholders' equity (deficit) ...........        247,652,000        (388,365,000)          (140,713,000)
                                                                    ------------       -------------          -------------
                                                                    $667,523,000       $ (41,115,000)         $ 626,408,000
                                                                    ============       =============          =============
</TABLE>

     See accompanying Notes to Consolidated Pro Forma Financial Statements.
- --------------------------------------------------------------------------------


                                       9
<PAGE>

- --------------------------------------------------------------------------------
                          CONCENTRA MANAGED CARE, INC.


                 Consolidated Pro Forma Statements of Operations
              For the Three Months Ended March 31, 1999 (Unaudited)

<TABLE>
<CAPTION>
                                                                                        PRO FORMA
                                                                    CONCENTRA           ADJUSTMENTS           PRO FORMA
                                                                 ---------------      ---------------      -------------------
<S>                                                              <C>                  <C>                  <C>

         Revenues:
          Health services .......................................... $70,622,000          $        --           $70,622,000
          Managed care services:                                                                   --
           Specialized cost containment ............................  46,712,000                   --            46,712,000
           Field case management ...................................  38,077,000                   --            38,077,000
                                                                      ----------        -------------           -----------
             Total managed care services ...........................  84,789,000                   --            84,789,000
                                                                      ----------                   --           -----------
                Total revenues ..................................... 155,411,000                   --           155,411,000
         Cost of Services:
           Health services .........................................  57,800,000                   --            57,800,000
           Managed care services ...................................  65,937,000                   --            65,937,000
                                                                      ----------        -------------           -----------
             Total cost of services ................................ 123,737,000                   --           123,737,000
                                                                     -----------        -------------           -----------
                Total gross profit .................................  31,674,000                   --            31,674,000
         General and administrative expenses .......................  14,420,000                   --            14,420,000
         Amortization of intangibles ...............................   3,038,000                   --             3,038,000
                                                                      ----------        -------------           -----------
                Operating income ...................................  14,216,000                   --            14,216,000
         Interest expense ..........................................   4,677,000           12,867,000(2)         17,544,000
         Interest income ...........................................  (1,112,000)           1,112,000(9)                 --
         Other, net ................................................      98,000                   --                98,000
                                                                      ----------        -------------           -----------
             Income (loss) before income taxes .....................  10,553,000          (13,979,000)           (3,426,000)
         Provision (benefit) for income taxes ......................   4,485,000           (5,941,000)(10)       (1,456,000)
                                                                      ----------        -------------           -----------
         Net income (loss) from continuing operations ..............  $6,068,000          $(8,038,000)          $(1,970,000)
                                                                      ==========        =============           ===========

         Basic earnings (loss) per share ...........................       $0.13                                $     (0.08)
                                                                           =====                                ===========
           Weighted average common shares
            outstanding ............................................  47,251,000          (21,613,000)(11)       25,638,000
                                                                      ==========        =============           ===========

         Diluted earnings (loss) per share .........................       $0.13                                $     (0.08)
                                                                           =====                                ===========
           Weighted average common shares and
            equivalents outstanding ................................  47,882,000          (22,244,000)(11)       25,638,000
                                                                      ==========        =============           ===========

</TABLE>


     See accompanying Notes to Consolidated Pro Forma Financial Statements.

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


                                       10
<PAGE>
- --------------------------------------------------------------------------------

                          CONCENTRA MANAGED CARE, INC.

                 Consolidated Pro Forma Statements of Operations
                For the Year Ended December 31, 1998 (Unaudited)

<TABLE>
<CAPTION>
                                                                                        PRO FORMA
                                                                  CONCENTRA            ADJUSTMENTS            PRO FORMA
                                                                 ---------------      ---------------      ----------------
<S>                                                              <C>                  <C>                  <C>
         Revenues:
          Health services .....................................     $259,481,000       $          --           $259,481,000
          Managed care services:                                                                  --
           Specialized cost containment .......................      183,734,000                  --            183,734,000
           Field case management ..............................      167,841,000                  --            167,841,000
                                                                     -----------        ------------           ------------
             Total managed care services ......................      351,575,000                  --            351,575,000
                                                                     -----------        ------------           ------------
               Total revenues .................................      611,056,000                  --            611,056,000
         Cost of Services:
          Health services .....................................      201,181,000                  --            201,181,000
          Managed care services ...............................      268,116,000                  --            268,116,000
                                                                     -----------        ------------           ------------
             Total cost of services ...........................      469,297,000                  --            469,297,000
                                                                     -----------        ------------           ------------
               Total gross profit .............................      141,759,000                  --            141,759,000
         General and administrative expenses ..................       45,326,000                  --             45,326,000
         Amortization of intangibles ..........................        8,119,000                  --              8,119,000
         Non-recurring charge .................................       33,114,000                  --             33,114,000
                                                                     -----------        ------------           ------------
               Operating income ...............................       55,200,000                  --             55,200,000
         Interest expense .....................................       18,021,000          52,155,000 (2)         70,176,000
         Interest income ......................................       (4,659,000)          4,659,000 (9)                 --
         Other, net ...........................................           44,000                  --                 44,000
                                                                     -----------        ------------           ------------
               Income loss before income taxes ................       41,794,000         (56,814,000)           (15,020,000)
         Provision (benefit) for income taxes .................       19,308,000         (23,294,000)(10)        (3,986,000)
                                                                     -----------        ------------           ------------
         Net income (loss) from continuing operations .........      $22,486,000        $(33,520,000)          $(11,034,000)
                                                                     ===========        ============           ============

         Basic earnings (loss) per share ......................      $      0.48                                     $(0.43)
                                                                     ===========                               ============
           Weighted average common shares
            outstanding .......................................       46,451,000         (20,813,000)(11)        25,638,000
                                                                     ===========        ============           ============

         Diluted earnings (loss) per share ....................      $      0.47                               $      (0.43)
                                                                     ===========                               ============
           Weighted average common shares and
            equivalents outstanding ............................      47,827,000         (22,189,000)(11)        25,638,000
                                                                     ===========        ============           ============



                               See accompanying Notes to Consolidated Pro Forma Financial Statements.
</TABLE>

- --------------------------------------------------------------------------------
                                       11

<PAGE>
- --------------------------------------------------------------------------------

                          CONCENTRA MANAGED CARE, INC.
        NOTES TO CONSOLIDATED PRO FORMA FINANCIAL STATEMENTS (UNAUDITED)

(1)      To record the receipt of cash as a result of the equity contribution by
         Welsh Carson of $288,486,000 and Ferrer Freeman of $30,600,000.

(2)      The table below reflects the pro forma adjustments to record (i) the
         repayment of certain existing debt and the issuance of new debt
         associated with the merger, (ii) the write-off of Concentra's existing
         deferred finance costs on debt to be repaid and to record new deferred
         finance costs associated with the issuance of new debt, and (iii) the
         related interest expense adjustment to reflect the pro forma effect of
         (i) and (ii) above.

<TABLE>
<CAPTION>
                                                                                                          INTEREST
                                                                               INTEREST                   EXPENSE
                                                                  AMOUNT         RATE                    ADJUSTMENT
                                                                ---------     ----------  -----------------------------------------
                                                                                              YEAR ENDED      THREE MONTHS ENDED
                                                                                           DECEMBER 31,1998     MARCH 31, 1999
                                                                                          -----------------   ------------------
                                                                                             (DOLLARS IN
                                                                                              THOUSANDS)
<S>                                                              <C>             <C>                <C>                 <C>
       Repayment of existing debt:
       Commitment fees on existing Revolving
       Credit Facility .......................................   $       --                       $    (250)            $    (63)
       4.5% Convertible Subordinated Notes due March, 2003 ...     (230,000)     4.50%(a)            (8,165)              (2,587)
       6.0% Convertible  Subordinated Notes
         due December, 2001 ..................................      (97,750)     6.00%               (5,865)              (1,466)
       Interest on other indebtedness paid off
         during the year .....................................           --                          (2,042)                 (62)
                                                                 ----------                       ---------           ----------
               Total repayment on existing debt ..............     (327,750)                        (16,322)              (4,178)
       Issuance of new debt:
       Term Facilities:
       Commitment fee on new $100,000,000 Credit Facility ....           --                             500                  125
       Tranche B at ABR plus applicable margin due 2006 ......      250,000      8.25%(b)            20,625                5,157
       Tranche C at ABR plus applicable margin due 2007 ......      125,000      8.50%(b)            10,625                2,656
       Senior Subordinated Notes at 11.0% due 2009 ...........      190,000     11.00%               20,900                5,225
       Senior Discount Debentures with warrants
         at 14.0% due 2010 ...................................      110,000     14.00%               15,400                3,850
                                                                -----------                       ---------           ----------
               Total issuance of new debt ....................      675,000                          68,050               17,013

       Amortization of existing deferred finance costs on
         debt being repaid:
               December 31, 1998 .............................       (7,952)                         (1,699)
               March 31, 1999 ................................       (7,453)                                                (499)
       Amortization of deferred finance costs on new debt ....       17,500                           2,126                  531
                                                                                                  ---------           ----------
               Total interest expense adjustment .............                                    $  52,155           $   12,867
                                                                                                  =========           ==========

</TABLE>
         (a)      The 4.5% Convertible Notes were issued in March ($200,000,000)
                  and April ($30,000,000) of 1998, as such, the interest expense
                  does not reflect a full year of interest expense.

         (b)      The Adjusted Borrowing Rate ("ABR") is assumed to be 5% for
                  the purposes of calculating interest expense. The annual
                  effect of a 1/8% change in the interest rate on the
                  $375,000,000 variable rate debt is $469,000 for the year ended
                  December 31, 1998 and $117,000 for the three months ended
                  March 31, 1999.

         (c)      The estimated deferred finance fees of $17,500,000 are being
                  amortized over the weighted average life of the new debt of
                  8.2 years.

(3)      To reflect the repurchase of 41,003,257 shares of common stock by
         Concentra at $16.50 per share. These shares are comprised of 47,303,020
         shares outstanding at March 31, 1999 less the 6,299,763 shares owned by
         Welsh Carson prior to the merger (see note 6).

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


                                       12
<PAGE>
- --------------------------------------------------------------------------------

(4)      To record the use of cash to fund approximately $44,000,000 of
         transaction fees consisting of deferred finance costs of approximately
         $17,500,000 (see note 2(c)) and banking, professional fees and other
         fees of $26,500,000 associated with the merger which will be expensed.
         The expensed portion of the fees of $26,500,000 has not been reflected
         on the Consolidated Pro Forma Statement of Operations, as they are
         one-time and unusual in nature.

(5)      To record the tax benefit ($3,056,000) on the pro forma adjustments
         associated with the write-off of the existing deferred finance costs
         (see note 2). For the purposes of these consolidated pro forma
         financial statements, Concentra has assumed that none of the expensed
         portion of the transaction fees of $26,500,000 will be deductible for
         tax purposes.

(6)      To record the capital contribution of cash of $319,086,000 (see note 1)
         and 6,299,763 shares of Concentra common stock owned by Welsh Carson.
         Welsh Carson and Ferrer Freeman will own 23,783,763 (92.8%) and
         1,854,545 (7.2%) shares of Concentra common stock post-merger,
         respectively.

(7)      To retire Concentra's outstanding common stock at the time of the
         merger. The value of the treasury stock of $780,500,000 exceeds
         Concentra's required stated capital and paid-in capital by $95,939,000
         which has been reflected as an increase to Concentra's retained
         deficit.

(8)      To reflect 6,299,763 shares of Concentra common stock owned by Welsh
         Carson, which was contributed to capital and will be subsequently
         retired at the time of the merger.

(9)      To record the decrease in interest income due to the use of available
         cash.

(10)     To record the tax benefit on the pro forma interest adjustments at
         42.5%.

(11)     To retire Concentra's outstanding common stock and reflect the
         subsequent re-issuance of new common stock to Welsh Carson and Ferrer
         Freeman in connection with the merger.

         The merger agreement provides that Concentra will use its best efforts
         to effect the cancellation or amendment at the effective time of the
         merger of all outstanding options to acquire Concentra common stock in
         exchange for a cash payment equal to $16.50 per share to such holder
         less the exercise price per share of such option. Concentra has not yet
         developed a plan with regard to unvested options.

         If all vested in-the-money (exercise price less than $16.50 per share)
         options and warrants are exercised at the time of the merger cash
         proceeds from the exercise would be $9,649,000, the related tax benefit
         would be $6,395,000, cash required to repurchase the outstanding shares
         would be $27,151,000 and stockholders' deficit would increase to
         ($151,820,000). There would be no effect on pro forma basic and diluted
         loss per share. As the exercise of these options and warrants are not
         directly attributable to the merger, their exercise and resulting
         repurchase has not been reflected as a pro forma adjustment in the
         consolidated pro forma financial statements.

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

                                       13
<PAGE>
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                               CERTAIN PROJECTIONS

         In connection with Welsh Carson's and Ferrer Freeman Thompson & Co.,
LLC's review of Concentra and in the course of the negotiations between
Concentra, Welsh Carson and Ferrer Freeman Thompson & Co., LLC described in "The
Merger -- Background," Concentra provided Welsh Carson and Ferrer Freeman
Thompson & Co., LLC with non-public business and financial information. The
non-public information Concentra provided included projections of Concentra's
future operating performance. These projections do not give effect to the merger
or the financing of the merger.

         Concentra does not, as a matter of course, publicly disclose
projections of future revenues or earnings. The projections were not prepared
with a view to public disclosure and are included in this proxy statement only
because such information was made available to Welsh Carson and Ferrer Freeman
Thompson & Co., LLC in connection with their due diligence investigation of
Concentra. The projections were not prepared with a view to compliance with the
published guidelines of the Securities and Exchange Commission regarding
projections, nor were they prepared in accordance with the guidelines
established by the American Institute of Certified Public Accountants for
preparation and presentation of financial projections. While presented with
numerical specificity, these projections reflect numerous assumptions made by
Concentra's management. In addition, factors such as industry performance and
general business, economic, regulatory, market and financial conditions, all of
which are difficult to predict and beyond the control of Concentra's management,
may cause the projections or the underlying assumptions to be inaccurate.
Accordingly, there can be no assurance that the projections will be realized,
and actual results may be materially greater or less than those contained in the
projections.

         Concentra does not intend to update or otherwise revise the projections
to reflect circumstances existing after the date when made or to reflect the
occurrence of future events even in the event that any or all of the assumptions
underlying the projections are shown to be in error.

         The projections Concentra provided to Welsh Carson and Ferrer Freeman
Thompson & Co., LLC included estimates of calendar year 1999 revenues, earnings
before interest, taxes, depreciation and amortization and earnings per share of
$722.0, $126.4 and $0.95, respectively, and estimates of calendar year 2000
revenues, earnings before interest, taxes, depreciation and amortization and
earnings per share of $831.5, $150.0 and $1.10, respectively. Welsh Carson and
Ferrer Freeman Thompson & Co., LLC took this information, together with their
own analyses, into account in determining whether to invest in Concentra.

                         CAUTIONARY STATEMENT CONCERNING
                           FORWARD-LOOKING INFORMATION

         Concentra cautions you that this proxy statement, the information
incorporated in this proxy statement by reference and other statements Concentra
makes from time to time, contain statements that may constitute "forward-looking
statements." Those statements include statements regarding Concentra's intent,
belief or current expectations, as well as the assumptions on which those
statements are based. Forward-looking statements are not guarantees of future
performance and involve risks and uncertainties, and actual results may differ
materially from those contemplated by forward-looking statements. Important
factors currently known to Concentra's management and Yankee that could cause
actual results to differ materially from those in forward-looking statements
include, but are not limited to, those factors set forth from time to time in
reports Concentra filed with the Securities and Exchange Commission. Concentra
undertakes no obligation to update or revise forward-looking statements to
reflect changes in assumptions, the occurrence of unanticipated events or
changes to future operating results over time. You are cautioned not to place
too much reliance on such statements.


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

                                       14
<PAGE>
                                 SPECIAL FACTORS

BACKGROUND OF THE MERGER

         In early August 1998, representatives of Welsh, Carson, Anderson &
Stowe VIII, L.P. ("WCAS") telephoned Donald J. Larson, who was then Chief
Executive Officer of Concentra Managed Care, Inc. ("Concentra"), in order to
discuss the possibility of WCAS acquiring Concentra. On August 25, 1998, WCAS
sent a letter to Mr. Larson confirming its interest in pursuing a potential
transaction with Concentra. Concentra believes that Mr. Larson intended to defer
a response to WCAS until he had an opportunity to consult with the Board of
Directors of Concentra (the "Board") at its next regularly scheduled meeting on
September 15, 1999.

         On September 8, 1998, Concentra issued a press release announcing that
Concentra's revenues and net income for the first two months of the quarter
ending September 30, 1998, were below expectations and that, consequently,
results for the third quarter were likely to be lower than analysts' estimates.
Further, Concentra revised its projected rate of revenue growth from
approximately 30% to approximately 20%, which would have an effect on
Concentra's earnings outlook. As a result, Concentra revised its forward-looking
earnings per share estimates to $0.29 and $0.21 for the third quarter and fourth
quarter of 1998, respectively. On the day of this announcement, the market price
of Concentra's common stock on the NASDAQ National Market dropped from $12 3/16
to $6 3/32.

         On September 15, 1998, a representative of Donaldson Lufkin & Jenrette
Securities Corporation, acting on behalf of WCAS, delivered to each of
Concentra's directors an unsolicited letter in which WCAS expressed a
non-binding interest in acquiring Concentra's outstanding common stock at a
price of $16 per share. WCAS stated its willingness to commence immediately a
due diligence investigation and to make and complete an acquisition proposal on
an expedited basis.

         Also on September 15, 1998, at a regularly scheduled meeting of the
Board, Donald J. Larson resigned as Concentra's Chairman and Chief Executive
Officer. The Board elected Daniel J. Thomas, formerly President and Chief
Operating Officer, to be Interim Chief Executive Officer, and elected John K.
Carlyle, a director and formerly Chairman of Concentra, to be Concentra's
Chairman.

         At the September 15 Board meeting, the members of the Board also
discussed the WCAS indication of interest, potential alternatives to the
transaction proposed by WCAS, and several Board members' potential conflicts of
interest with respect to any transaction with WCAS as a result of previous
relationships with WCAS. At this meeting, Richard A. Parr II, Concentra's
General Counsel, and a representative of Concentra's legal counsel, Vinson &
Elkins L.L.P., apprised the Board of the appropriate process for evaluating the
WCAS indication of interest, for addressing directors' potential conflicts of
interest, for addressing potential competing offers, and discussed the possible
formation of a special committee of independent directors for the purpose of
considering strategic alternatives available to Concentra, including remaining
independent and evaluating the WCAS indication of interest. Thereafter, the
Board directed Concentra's senior management to assess immediately Concentra's
financial condition and strategy in light of the WCAS Proposal and to report
their findings as soon as possible to the Board. The Board deferred a response
to WCAS and any action with respect to the formation of a special committee
until the Board's receipt and evaluation of senior management's findings.

         On September 22, 1998, WCAS made a filing under the Hart-Scott-Rodino
Antitrust Improvements Act of 1976, as amended (the "HSR Act"), disclosing its
intention to acquire in excess of $15 million of Concentra's common stock.

         Between September 11, 1998 and October 1, 1998, Concentra received four
letters containing additional unsolicited expressions of interest from third
parties to acquire Concentra. Bidders 1, 2 and 3 were national leveraged buyout
firms and Bidder 4 was a regional leveraged buyout firm. Bidder 1, in a letter
dated September 28, 1998, expressed an interest in purchasing Concentra for
$13.00 to $15.00 per share in cash. Bidder 2, in a letter dated September 25,
1998, offered to provide or arrange equity capital as well as senior mezzanine
debt to enable Concentra to finance a recapitalization to provide stockholders
with cash at a premium to the market price in respect of approximately 80% of
Concentra's shares. The letter elaborated that the contemplated transaction
would result in Concentra's public stockholders maintaining ownership of more
than 50% of Concentra's common stock. Bidder 2's letter did not specify a
purchase price for the acquisition. Bidder 3, in a letter dated September 30,
1998,

                                       15


<PAGE>

merely expressed an interest in engaging in a cash acquisition of Concentra
without providing any details. Similarly, Bidder 4, in a letter dated September
11, 1998, expressed an interest in entering into a transaction with Concentra
without describing the details of the transaction.

         Between September 11, 1998 and October 1, 1998, Concentra sought the
informal assistance of BT Alex. Brown in evaluating Concentra's business and
financial condition.

         On October 1, 1998, at a special meeting of the Board convened to
update the Board on the results of senior management's assessment in response to
the Board's September meeting, Mr. Carlyle informed the Board of Concentra's
receipt of the additional expressions of interest and of WCAS's HSR Act filing.
Mr. Thomas and Mr. Carlyle reported to the Board regarding senior management's
efforts to assess the financial condition and strategy of Concentra, and stated
that, based on the initial results of such assessment, Concentra should further
consider the expressions of interest. Specifically, Mr. Thomas and Mr. Carlyle
reported that, after examining Concentra's projected cash flows and net income,
and in light of the significant capital expenditures necessary or desirable in
the areas of technology, information systems and facilities, it was likely that
the highest cash prices offered by the bidders in their offer letters exceeded
the anticipated trading price of Concentra's common stock in the foreseeable
future.

         At this meeting, Concentra's legal counsel described the fiduciary
duties, including their duties of loyalty and care, owed to Concentra and its
stockholders by Concentra's directors and officers, particularly in the context
of evaluating Concentra's strategic alternatives. Concentra's legal counsel
further discussed the process for evaluating and addressing directors' conflicts
of interest and the structure, functions, responsibilities and likely
composition of a possible special committee to be formed for the purpose of
addressing the expressions of interest. The Board then determined that seven of
nine directors had potential conflicts of interest that might preclude them
from, or limit them in, participating in the deliberations to evaluate the
expressions of interest. Messrs. Carlyle, Ortenzio, Rehm, Silverman and Thomas
each had relationships with one or more of the bidders in which the bidders had
invested in or were proposing to invest in ventures with such directors. Mr.
Rabkin was engaged in soliciting Bidder 1 to make a significant charitable
contribution to a not-for-profit entity. Messrs. Carlyle, Ortenzio, Rehm and
Thomas had pre-existing business relationships with WCAS. In addition, an
investment partnership affiliated with WCAS is currently an investor in MAGELLA
Healthcare Corporation, a company of which Mr. Carlyle is the President and
Chief Executive Officer. Mr. Silverman had a pre-existing business relationship
with Bidder 2. See "Conflicts of Interest."

         Thereafter, the Board determined that it was in the best interests of
Concentra and its stockholders to form a special committee, consisting of Hon.
Willis D. Gradison, Jr., and George H. Conrades. These two members of the Board
were not employed by Concentra, would not be involved as participants in any
potential transaction, and had no past or present relationship with WCAS or with
any of the other parties who had delivered an expression of interest in
acquiring Concentra. The special committee was charged by the Board with
considering the various strategic alternatives available to Concentra, including
considering (1) whether Concentra should remain independent and continue to
pursue its current strategy or a modified strategy, (2) any proposals to acquire
Concentra and (3) any proposals to engage in a strategic merger of Concentra
with another company. The special committee was authorized to conduct or
supervise the conduct of any negotiations with respect to such an acquisition or
merger, and to review, evaluate and make a determination with respect to such an
acquisition or merger (including conducting or supervising the conduct of any
auction or related activities that the special committee might deem necessary or
appropriate to protect the interests of Concentra's stockholders). The special
committee was also authorized to establish such procedures, review such
information and engage such legal counsel and financial advisors as it deemed
reasonable and necessary.

         The special committee retained Ropes & Gray as its legal counsel and
discussed with them the procedures to be followed in evaluating the various
strategic alternatives available to Concentra and responding to the expressions
of interest received by Concentra. Ropes & Gray advised the special committee of
the special committee's legal responsibilities, principles applicable to, and
consequences of, actions taken by the special committee with respect to its
evaluation of Concentra's strategic alternatives and its ultimate recommendation
to the Board. The procedures outlined by Ropes & Gray included the need for
separate meetings of the special committee, the desirability of controlling
communications with Concentra's Board and management in light of the potential
conflicts of interest, and the anticipated course of discussions and
negotiations with potential acquirors or merger partners. Following this
discussion, the special committee determined to meet as frequently as necessary
to

                                       16

<PAGE>

remain informed about the status of discussions or negotiations and make
decisions regarding the alternatives presented. The special committee also
determined to limit communication with Concentra's Board and management
regarding potential alternatives being reviewed by the special committee to
avoid disclosure of the terms of any proposals being considered and the identity
of the parties submitting the proposals.

         The special committee also selected BT Alex. Brown as its financial
advisor. The special committee instructed representatives of BT Alex. Brown to
meet with members of Concentra's senior management to participate in Concentra's
detailed evaluation of its business and financial prospects and preparation of
an updated five year plan. From October 15, 1998 through December 2, 1998,
representatives of BT Alex. Brown met periodically with Mr. Thomas, Joseph F.
Pesce, Concentra's Chief Financial Officer, and other members of Concentra's
senior management for this purpose.

         On October 10, 1998, the Federal Trade Commission granted WCAS early
termination of its HSR Act filing. Concentra did not join WCAS's request for
early termination of its HSR Act waiting period.

         On October 28, 1998, at a special meeting of the Board, the special
committee reported that it had held several meetings with representatives of
Ropes & Gray and BT Alex. Brown, had scheduled additional meetings with them and
with members of Concentra's senior management, and would report further to the
Board following the special committee's completion of a more comprehensive
review of Concentra's business and financial prospects and updated five year
plan.

         On October 29, 1998, Concentra issued its third quarter earnings
release, announcing results which fell short of previously revised expectations
for revenues and profitability, and disclosed a non-recurring charge of $15
million to $25 million, which was to be taken in the fourth quarter of 1998. In
addition, Concentra announced that it had received several unsolicited
expressions of interest to acquire Concentra, that it had formed the special
committee for the purpose of evaluating various strategic alternatives available
to Concentra, including remaining independent and pursuing its existing or a
modified strategy, and that the special committee had engaged BT Alex. Brown as
its financial advisor.

         On November 2, 1998, WCAS made a Schedule 13D filing with the
Securities and Exchange Commission disclosing that WCAS had purchased 1,725,000
shares of Concentra's common stock between October 20, 1998 and October 30,
1998. WCAS also reported that it had during the same period purchased
$20,500,000 in principal amount of Concentra's 4.5% Convertible Subordinated
Notes due 2003 (convertible into 496,969 shares of Concentra common stock)
which, together with the shares of Concentra common stock purchased by WCAS,
would have represented 4,346,732 shares or approximately 9.1% of Concentra's
outstanding common stock if the notes were converted.

         On November 17, 1998, the Board elected Mr. Thomas to the permanent
position of President and Chief Executive Officer, removing the interim
designation he had held since September 15.

         Between October 28, 1998 and December 2, 1998, the special committee
held additional meetings with Ropes & Gray, BT Alex. Brown and Concentra's
senior management. The special committee reported to the Board at a special
meeting held on November 17 that the special committee would be prepared to
present an initial report and preliminary recommendations to the Board during
the first week of December.

         On December 2, 1998, at a special meeting called for that purpose, the
special committee reported to the Board regarding the special committee's
consideration of strategic alternatives available to Concentra, including the
advantages and disadvantages of each, the rationale for the special committee's
recommendations and the special committee's analysis of Concentra's business and
financial prospects. The special committee recommended that Concentra pursue a
controlled process to evaluate and consider whether to preserve Concentra's
independence or complete a sale of Concentra and/or a recapitalization of
Concentra. The process would involve contacting selected potential financial
buyers and strategic merger partners to gauge their interest in acquiring or
merging with Concentra. The special committee proposed a tentative timetable for
undertaking and completing the process and recommended that the process be
directed and controlled by the special committee. The members of the Board
discussed in detail the special committee's recommendations and thereafter
approved and adopted the special committee's recommendations in full.


                                       17
<PAGE>

         Between December 7 and December 14, 1998, at the direction of the
special committee, eleven potential financial buyers and nine potential
strategic merger partners were contacted regarding their interest in acquiring
or merging with Concentra. WCAS and other parties who had delivered expressions
of interest to the Board were among those parties contacted. Subsequently,
Concentra entered into confidentiality and standstill agreements with nine
financial parties, including WCAS, and two strategic parties, and sent each of
these parties a copy of a confidential memorandum describing Concentra. In
selecting potential acquirors and strategic partners to be contacted in the
process, the special committee considered those entities which had expressed an
interest in acquiring Concentra (or a substantial portion thereof) either before
the formation of the special committee or after its inception and disclosure to
the public. In expanding the field beyond those which independently expressed
interest, the special committee focused specifically on financial sponsors with
portfolio companies in the specialty managed care and workers compensation
fields which had completed transactions similar in size and scope to the
potential acquisition of Concentra and potential strategic partners in the
specialty managed care or workers compensation fields with the financial
capability to complete a transaction of this size. The parties ultimately
selected to be contacted included insurance companies, health service providers,
information services companies and financial sponsors.

         The special committee followed customary practices for sharing
non-public information with potential investors by pursuing
standstill/confidentiality agreements. Recognizing that material non-public
information would be included in both management presentations to potential
acquirors and strategic partners as well as any additional due diligence pursued
by the parties, the special committee required all interested parties to sign
standstill/confidentiality agreements. Such agreements were designed, in part,
to protect existing stockholders from the harm that might result from access to
material non-public information by potential acquirors.

         On January 12, 1999, WCAS filed an amendment to its Schedule 13D with
the Securities and Exchange Commission indicating that WCAS had purchased an
additional 2,450,000 shares of Concentra's common stock between November 2, 1998
and January 6, 1999 and prior to its execution of a confidentiality and
standstill agreement with Concentra on January 12, 1999. WCAS also reported that
it had during the same period purchased an additional $14,000,000 in principal
amount of Concentra's 4.5% Convertible Subordinated Notes due 2003 (convertible
into 339,395 shares of Concentra common stock) which, together with the shares
of Concentra common stock owned by WCAS, would have represented 7,136,127 shares
or approximately 14.9% of Concentra's outstanding common stock if the notes were
converted.

         On January 28, 1999, five financial parties, including WCAS, indicated
in writing their interest in acquiring Concentra. One strategic party indicated
orally an interest in a transaction with Concentra. The preliminary indications,
which were developed before management meetings or commencement of business or
legal due diligence, ranged from $13.50 to $20.00 per share. Each of the written
offers presented to the special committee on January 28, 1999 contemplated a
structure that would be characterized as a leveraged recapitalization. The
written offers provided for the purchase of between 90% and 100% of the
currently outstanding shares of Concentra. All written offers received were
conditioned upon completing the aforementioned due diligence which also
included, but was not limited to, specific financial, accounting, tax and
environmental issues.

         On February 4, 1999, Concentra announced revenues and earnings for the
fourth quarter and year ended December 31, 1998, as well as a non-recurring
charge of $20,514,000. Concentra also announced that overall revenue growth was
expected to slow to approximately 15% for 1999, and Concentra projected earnings
of approximately $0.90 to $0.95 for 1999, versus $0.93 per share for 1998.
Concentra stated that, in the future, total revenues were anticipated to grow in
the 12% to 15% range, and annual earnings growth was expected to re-accelerate
to a range of approximately 15% to 18%. Finally, Concentra announced that the
special committee continued to work with BT Alex. Brown to evaluate the various
strategic alternatives available to Concentra and that the special committee
planned to complete its evaluation and make a recommendation to the full Board
by the end of the first quarter of 1999.

         Between February 9, 1999 and February 23, 1999, each of the potential
financial parties and the strategic party attended presentations by members of
Concentra's senior management and was given access to extensive documentary due
diligence information prepared by Concentra. Each party was also invited to
pursue additional business, legal, tax, human resources, information technology
and accounting due diligence. Five of the six parties pursued this additional
due diligence to varying degrees. WCAS pursued due diligence in each area.


                                       18

<PAGE>

         On February 24, 1999, the special committee received second-round
indications of interest from four financial parties, including WCAS, each
indicating an interest in purchasing all or substantially all of Concentra's
outstanding common stock, and each proposing to effect the transaction through a
leveraged recapitalization. Three of the parties' indications of interest
explicitly required additional accounting and legal due diligence. Various
additional diligence requests from these parties included the tax, financial,
regulatory, environmental, employment and technology areas. Requests were also
made for select facility site visits and interviews with customers from each of
the major business lines. Each of these three offers stated that an additional
two to three weeks would be necessary to complete this incremental diligence.
The first two offers were for $15.00 and $16.00 per share, respectively. The
third offer included a range of value, between $16.00 and $17.00, but was
subject to the above other conditions, including complete accounting, tax and
legal due diligence as well as additional business due diligence. WCAS's
expression of interest stated that its offer expired on March 5, 1999 and that
only informal confirmatory due diligence was required. All parties submitted
commitment letters from their respective financing sources with respect to all
financing required for completion of the individually proposed transactions.
Only WCAS's commitment letters were not subject to further business due
diligence.

         On the evening of February 25, 1999, unsolicited, WCAS orally indicated
an ability to revise its offer to $16.50, subject to Concentra executing a
definitive agreement prior to March 5, 1999. On February 26, 1999, the special
committee met to review the second-round indications. Based on written
confirmation of the $16.50 offer and a commitment from WCAS to bridge finance
the subordinated debt and mezzanine components of its offer, the special
committee elected to pursue an accelerated transaction with WCAS on the
condition that a definitive agreement, subject to no further due diligence
investigation, be executed by March 2, 1999 at a price of $16.50 per share. In
electing to pursue an accelerated transaction with WCAS, the special committee
considered that WCAS's expression of interest expired on March 5, 1999, that
WCAS required only informal confirmatory due diligence, and that WCAS's
commitment letters were not subject to further business due diligence. The other
bidders and their financing sources required significantly greater due diligence
and the special committee believed it to be unlikely that a more attractive
offer would result from the additional due diligence. Given these factors, the
special committee believed that the stockholders' interests would not be served
by rebuffing WCAS's request for acceleration and continuing the due diligence
investigation of the other bidders for an extended period of time. Legal counsel
to Concentra and to the special committee commenced negotiation of a definitive
merger agreement incorporating the terms and conditions approved by the special
committee. The merger agreement provided that all but approximately 1.9 million
shares of Concentra common stock (approximately seven percent of Concentra's
post-merger shares outstanding) would be converted into the right to receive
$16.50 in cash, with Concentra's current stockholders retaining those
outstanding shares. The merger agreement further provided that, if WCAS arranged
for an independent third party investor to purchase approximately seven percent
of Concentra's post-merger common stock, Concentra's stockholders would receive
$16.50 in cash for 100% of their shares.

         On February 27, 1999, at a special meeting of the Board, the special
committee updated the Board regarding its pursuit of an accelerated transaction
with WCAS. The special committee described the WCAS Proposal and the progress of
the negotiations with WCAS and preparation of the merger agreement.

         On March 2, 1999, at a special meeting of the Board, the members of the
special committee, Concentra's senior management, representatives of BT Alex.
Brown and Ropes & Gray, and Concentra's legal counsel reviewed with the Board
the terms of the merger agreement and the merger, the background of the merger,
the strategic rationale for and potential benefits of the merger, and the status
of negotiations with WCAS. At this meeting, BT Alex. Brown reviewed with the
Board and special committee the financial analyses performed by BT Alex. Brown
in connection with its evaluation of the merger consideration and rendered an
oral opinion, subsequently confirmed by delivery of a written opinion, to the
effect that, as of the date of the opinion and based upon and subject to the
matters stated in its opinion, the merger consideration was fair, from a
financial point of view, to the holders of Concentra common stock, other than
WCAS or its affiliates. See "Opinion of Concentra's Financial Advisor." The
members of the special committee unanimously recommended to the Board that the
Board accept the $16.50 offer by WCAS and approve the merger agreement. After
extensive consideration, the Board unanimously approved the merger agreement and
instructed Concentra's senior management and legal advisors to complete
negotiations with WCAS and execute the merger agreement on behalf of Concentra.

         On the evening of March 2, 1999, Concentra and WCAS completed
negotiations and Concentra and Yankee Acquisition Corp. ("Yankee") executed the
merger agreement.


                                       19
<PAGE>

         On March 24, 1999, WCAS notified Concentra that Ferrer Freeman Thompson
& Co., LLC had agreed to purchase approximately seven percent of Concentra's
post-merger common stock. On March 24, 1999, Concentra and Yankee entered into
an amended and restated merger agreement under which Concentra's stockholders
are entitled to receive $16.50 in cash for 100% of their shares.

THE SPECIAL COMMITTEE'S AND THE BOARD'S RECOMMENDATION

         The full Board formed the special committee, comprised of two
disinterested directors, to review and evaluate the proposals because it
appeared that certain of the directors would have actual or potential conflicts
of interest in evaluating third-party proposals to acquire Concentra. Neither of
these two directors were, or had ever been, employees of Concentra. The special
committee unanimously recommended to the Board that the merger agreement be
approved. Following the unanimous recommendation of the special committee, the
Board approved the merger agreement and recommended that the stockholders of
Concentra approve the merger agreement. In approving the merger agreement, the
special committee and the Board determined that the merger, the merger agreement
and the transactions contemplated thereby were advisable, fair and in the best
interests of Concentra and its stockholders. The special committee and the Board
each adopted the analyses and findings of the special committee's financial
advisor, BT Alex. Brown. See "SPECIAL FACTORS -- Opinion of Concentra's
Financial Advisor."

         The special committee met on six occasions between October 1, 1998 and
the date of this proxy statement, in person or by telephone, to select their
legal counsel and financial advisor and to consider developments relating to a
possible sale of Concentra. The special committee was assisted in its
deliberations by its financial advisor, BT Alex. Brown, and its legal counsel,
Ropes & Gray. BT Alex. Brown acted on behalf of Concentra. Ropes & Gray acted
solely on the behalf of unaffiliated securityholders. At a meeting held on March
2, 1999, the special committee determined that the merger, the merger agreement
and the transactions contemplated thereby were fair and in the best interests of
Concentra and its stockholders and recommended that the full Board approve the
merger agreement.

         THE SPECIAL COMMITTEE AND THE BOARD UNANIMOUSLY RECOMMEND THAT YOU VOTE
FOR THE APPROVAL AND ADOPTION OF THE MERGER AGREEMENT.
- ---

         The special committee and the Board believes that the terms of the
merger agreement and the merger are advisable and fair to and in the best
interests of Concentra and its stockholders. In reaching its determination to
recommend the merger agreement, the special committee considered a number of
factors, including the following:

         1. The special committee considered the value of the consideration to
be received by Concentra's stockholders in the merger. The special committee
considered the historical market prices and trading information for Concentra
common stock, the price per share offered by Yankee, the certainty of value
provided by the cash consideration and the fact that the merger consideration
represents a significant premium over the market prices at which Concentra's
common stock had previously traded, including, but not limited to, the fact that
the $16.50 per share cash consideration represented a 37.5% premium over the
$12.00 trading price on October 28, 1998, the day before Concentra announced the
formation of the special committee and a 161.4% premium over the $6.31 trading
price on October 9, 1998, the day before the Federal Trade Commission granted
early termination of WCAS's HSR Act filing.

         2. As described above under "Background of the Merger," the special
committee noted that the merger consideration and the ultimate selection of the
Yankee proposal was the result of an extensive process that resulted in
discussions with a substantial number of potential bidders in a process designed
to elicit third-party proposals to acquire Concentra, and that the participants
in the process were afforded ample opportunity to submit proposals to Concentra.

         3. The special committee considered information concerning Concentra's
financial performance, financial condition, business operations and prospects.
In particular, the special committee considered the projections prepared by
Concentra's management described in "Summary--Certain Projections." The special
committee also considered that necessary or desirable investments in facilities
and information systems and technology would require substantial expenditures
which might have a short-term negative impact on earnings per share and,
consequently, the market price of Concentra common stock. The special committee
considered the

                                       20

<PAGE>

prospects of continuing to operate Concentra as an independent public company
and the possibility that Concentra's future performance might not in the
foreseeable future lead to a trading price for Concentra common stock having a
higher present value than the merger consideration.

         4. The special committee considered a number of strategic alternatives
to the merger agreement. At the direction of the special committee, nine
potential strategic merger partners were contacted regarding their interest in
merging with Concentra. Only one potential strategic merger partner indicated an
interest in a transaction with Concentra, but, after attending presentations by
Concentra's senior management, it never submitted a merger proposal. The special
committee also considered redeploying Concentra's specialty managed care,
physician practice management or healthcare information technology operations
through a divestiture, subsidiary initial public offering, spin-off or similar
transaction. The special committee considered that those alternatives involved
numerous risks and problems, including valuation issues, lost synergies,
additional transaction risks, tax and accounting issues, and management
challenges. The special committee concluded that none of these strategic
alternatives were likely to enhance stockholder value as much as the merger
agreement.

         5. The special committee considered that Concentra may be managed more
effectively as a private company. In particular, as a private company, Concentra
would not be subject to pressures from public stockholders and market
professionals to maintain and grow earnings per share and would have greater
flexibility to consider business strategies that have long-term benefits
(including investments in facilities and information systems and technology that
might be dilutive in the short term), but that might adversely affect earnings
per share and the market price of Concentra common stock in the short term if
Concentra were a public company.

         6. The special committee considered the strong financial condition and
business reputation of WCAS, the experience and high rate of success of WCAS in
structuring and completing transactions similar to the merger, the financing
commitments obtained by WCAS and WCAS's ability to complete the merger in a
timely manner and without substantial additional due diligence.

         7. The special committee considered the opinion of BT Alex. Brown dated
March 2, 1999 as to the fairness, from a financial point of view, of the merger
consideration to the holders of Concentra common stock, other than WCAS or its
affiliates, and further considered the related financial analyses performed by
BT Alex. Brown, as described below under "Opinion of Concentra's Financial
Advisor."

         The special committee also considered potential negative aspects of the
merger agreement, including the following:

         1. At times, the Concentra common stock has traded substantially above
the amount of the merger consideration. See "Summary - Historical Market
Information." The special committee believed, however that significant decreases
in the market prices of healthcare stocks combined with Concentra's need to
invest in facilities, information systems and technology, which would require
substantial expenditures that might have a short-term negative impact on
earnings per share, made it unlikely that Concentra common stock would trade
above $16.50 in the foreseeable future.

         2. The special committee considered that, after the merger, Concentra's
current public stockholders will not participate in Concentra's future earnings
and growth.

         3. The special committee considered certain restrictive provisions of
the merger agreement, including the restrictions relating to solicitation of
third party proposals, the termination provisions and the size, nature and
events that would trigger the payment of the $25 million termination fee and
related expense reimbursement obligation, capped at $4 million, contained in the
merger agreement (see "The Merger Agreement - Termination of the Merger
Agreement" and "Termination Fees"). Although the special committee determined
that the terms of the merger agreement were favorable to Concentra's
stockholders, the special committee recognized that the provisions limiting
Concentra from soliciting or encouraging alternative proposals, and the
termination fee provisions, would decrease the likelihood that a third party
would offer to acquire Concentra. Nonetheless, the


                                       21

<PAGE>

special committee believed that such provisions were in the best interests of
Concentra's stockholders because they enhanced the likelihood that the merger
would be accomplished, thereby providing Concentra's stockholders with the
benefits of the merger consideration. The special committee also noted that
termination fee provisions are customary in documents like the merger agreement,
particularly when the target company has the right, as does Concentra, to
terminate the merger agreement if its board of directors, in the exercise of its
fiduciary duties, determines termination is required by reason of another
acquisition proposal. The special committee determined that the amounts of the
termination fee and reimbursement cap, and the circumstances in which they would
be paid, were customary in transactions of the size and nature of the merger. In
addition, in evaluating the provisions, the special committee also took into
account that Concentra had contacted a substantial number of potential bidders
and afforded them a full opportunity to submit an offer to acquire Concentra.

         4. The special committee considered that Yankee's stockholders may
cause Concentra, upon completion of the merger, to enter into employment
agreements with Concentra's executive officers and to grant the executive
officers options to purchase shares of Concentra common stock. The special
committee also considered that the executive officers may be given the
opportunity to roll over their current equity investment in Concentra into
common stock of Concentra as the surviving corporation in the merger. No such
agreements or option grants were effective when the special committee approved
the merger agreement.

         5. The special committee considered that it was approving an
accelerated transaction with Yankee without pursuing further the negotiation of
other second-round indications of interest. The special committee also
considered that one of these indications of interest included a range of value
having a high end slightly above $16.50 per share. The special committee
realized, however, that WCAS's expression of interest expired on March 5, 1999,
that WCAS required only informal confirmatory due diligence, and that WCAS's
commitment letters were not subject to further business due diligence. The other
bidders and their financing sources required significantly greater due diligence
and the special committee believed it to be unlikely that a higher offer would
result from the additional due diligence. Given these factors, the special
committee believed that the stockholders' interests would not be served by
rebuffing WCAS's request for acceleration and continuing the due diligence
investigation of the other bidders for an extended period of time. See "The
Merger - Background of the Merger."

         6. The special committee considered that Concentra's debt to equity
ratio will be substantially higher following the merger and that Concentra's
existing creditors at the time of the merger could possibly allege that the
leveraging of Concentra to pay the merger consideration involved a fraudulent
conveyance entitling them to recover a portion or all of the merger
consideration from Concentra's public stockholders. The special committee did
not believe that the merger would constitute a fraudulent conveyance. In
approving the merger agreement, the special committee concluded that the
benefits of the merger agreement far outweighed the risk that the merger would
constitute a fraudulent conveyance that would enable Concentra's creditors to
recover the merger consideration from Concentra's public stockholders.

         7. The special committee considered that Concentra would be required to
pay substantial costs and fees to its financial, legal, accounting and other
advisors in consummating the merger. The special committee concluded that
Concentra's professional advisors provided substantial benefits in negotiating
the financial and legal aspects of the merger agreement and that their fees were
reasonable.

         8. The special committee considered the risk that the merger
consideration is fixed and will not be adjusted in the event of an increase or
decrease in the market price of Concentra common stock or the value of
Concentra's business. The special committee recognized that fixed merger
consideration in a transaction such as the merger is not unusual and that the
fixed merger consideration, while creating a risk to Concentra's stockholders,
could also operate to benefit Concentra's stockholders, especially in light of
the recent historical performance of Concentra common stock.

         The foregoing discussion of factors considered by the special committee
is not exhaustive, but Concentra believes it includes the material factors
considered by the special committee. The special committee did not quantify or
otherwise attempt to assign relative weights to the specific factors the special
committee considered in reaching its determination to recommend the merger.
Rather, the special committee viewed its position and recommendation as being
based on the total information presented to and considered by the special
committee.


                                       22
<PAGE>

OPINION OF CONCENTRA'S FINANCIAL ADVISOR

         Concentra engaged BT Alex. Brown to act as exclusive financial advisor
to Concentra and the special committee in connection with the merger. On March
2, 1999, at a meeting of the Concentra board held to evaluate the proposed
merger, BT Alex. Brown rendered an oral opinion, which opinion was subsequently
confirmed by delivery of a written opinion dated March 2, 1999, to the effect
that, as of that date and based upon and subject to the matters stated in its
opinion, the merger consideration was fair, from a financial point of view, to
the holders of Concentra common stock, other than WCAS or its affiliates.

         The full text of BT Alex. Brown's written opinion dated March 2, 1999,
which describes the assumptions made, matters considered and limitations of the
review undertaken, is attached as Appendix B to this proxy statement and is
incorporated herein by reference. BT ALEX. BROWN'S OPINION IS DIRECTED TO THE
CONCENTRA BOARD AND SPECIAL COMMITTEE, ADDRESSES ONLY THE FAIRNESS OF THE MERGER
CONSIDERATION FROM A FINANCIAL POINT OF VIEW, DOES NOT ADDRESS THE MERITS OF THE
UNDERLYING DECISION BY CONCENTRA TO ENGAGE IN THE MERGER, AND DOES NOT
CONSTITUTE A RECOMMENDATION TO ANY STOCKHOLDER AS TO HOW SUCH STOCKHOLDER SHOULD
VOTE WITH RESPECT TO MATTERS RELATING TO THE PROPOSED MERGER. The summary of BT
Alex. Brown's opinion described below is qualified in its entirety by reference
to the full text of such opinion.

         In connection with BT Alex. Brown's role as Concentra's financial
advisor, and in arriving at its opinion, BT Alex. Brown:

         o    reviewed publicly available financial and other information
              concerning Concentra and internal analyses and other information
              furnished to or discussed with BT Alex. Brown by Concentra and its
              advisors;

         o    held discussions with members of the senior management of
              Concentra and WCAS regarding the business and prospects of
              Concentra;

         o    reviewed the reported prices and trading activity for Concentra
              common stock;

         o    compared financial and stock market information for Concentra with
              similar information for other companies whose securities are
              publicly traded;

         o    reviewed the financial terms of recent business combinations which
              BT Alex. Brown deemed comparable in whole or in part;

         o    reviewed the terms of the merger agreement as originally executed;

         o    was authorized to approach, and held discussions with third
              parties to solicit indications of interest with respect to the
              acquisition of Concentra; and

         o    performed other studies and analyses and considered other factors
              as BT Alex. Brown deemed appropriate.

         BT Alex. Brown did not assume responsibility for independent
verification of, and did not independently verify, any information, whether
publicly available or furnished to BT Alex. Brown, about Concentra both before
and after giving effect to the merger, including, without limitation, any
financial information, forecasts or projections considered in connection with
the rendering of its opinion. For purposes of its opinion, BT Alex. Brown
assumed and relied upon the accuracy and completeness of all information
reviewed and BT Alex. Brown did not conduct a physical inspection of any of the
properties or assets, and did not prepare or obtain any independent evaluation
or appraisal of any of the assets or liabilities, of Concentra. With respect to
the financial forecasts and projections made available to BT Alex. Brown and
used in its analyses, BT Alex. Brown assumed that they were prepared on a basis
reflecting reasonable estimates and judgments. In rendering its opinion, BT
Alex. Brown expressed no view as to the reasonableness of the forecasts and
projections or the assumptions on which they are based. BT Alex. Brown's opinion
was necessarily based upon economic, market and other conditions existing on,
and the information made available to BT Alex. Brown as of, the date of its
opinion.


                                       23
<PAGE>

         For purposes of rendering its opinion, BT Alex. Brown assumed that, in
all respects material to its analysis, the representations and warranties of
Concentra and Yankee contained in the merger agreement are true and correct,
Concentra and Yankee will each perform all of the covenants and agreements to be
performed by it under the merger agreement and all conditions to the obligations
of Concentra and Yankee to consummate the merger will be satisfied without any
waiver. BT Alex. Brown also assumed that all material governmental, regulatory
or other approvals and consents required in connection with the consummation of
the merger will be obtained and that in connection with obtaining any necessary
governmental, regulatory or other approvals and consents, or any amendments,
modifications or waivers to any agreements, instruments or orders to which
either Concentra or Yankee is a party or is subject or by which it is bound, no
limitations, restrictions or conditions will be imposed or amendments,
modifications or waivers made that would have a material adverse effect on
Concentra or materially reduce the contemplated benefits of the merger to
Concentra. In addition, BT Alex. Brown was informed by Concentra, and for
purposes of rendering its opinion BT Alex. Brown assumed, that the merger will
be recorded as a recapitalization for financial reporting purposes. BT Alex.
Brown expressed no opinion as to the price at which the Concentra common stock
will trade at any time. No other instructions or limitations were imposed by the
Board or special committee upon BT Alex. Brown with respect to the
investigations made or the procedures followed by it in rendering its opinion.

         The following is a summary of the material analyses performed by BT
Alex. Brown in connection with its opinion to the Board and special committee
dated March 2, 1999. CERTAIN OF THE FINANCIAL ANALYSES SUMMARIZED BELOW INCLUDE
INFORMATION PRESENTED IN TABULAR FORMAT. IN ORDER TO FULLY UNDERSTAND BT ALEX.
BROWN'S FINANCIAL ANALYSES, THE TABLES MUST BE READ TOGETHER WITH THE TEXT OF
EACH SUMMARY. THE TABLES ALONE DO NOT CONSTITUTE A COMPLETE DESCRIPTION OF THE
FINANCIAL ANALYSES. CONSIDERING THE DATA SET FORTH BELOW WITHOUT CONSIDERING THE
FULL NARRATIVE DESCRIPTION OF THE FINANCIAL ANALYSES, INCLUDING THE
METHODOLOGIES AND ASSUMPTIONS UNDERLYING THE ANALYSES, COULD CREATE A MISLEADING
OR INCOMPLETE VIEW OF BT ALEX. BROWN'S FINANCIAL ANALYSES.

ANALYSIS OF SELECTED PUBLIC COMPANIES

         BT Alex. Brown compared financial and stock market information for
Concentra and the following 11 selected publicly held companies in the specialty
managed care and physician practice management sectors of the healthcare
services industry:

         o    American Dental Partners, Inc.
         o    American Oncology Resources, Inc.
         o    CorVel Corporation
         o    First Commonwealth, Inc.
         o    First Health Group Corp.
         o    Healthcare Recoveries, Inc.
         o    Healthplan Services Corporation
         o    Orthodontic Centers of America, Inc.
         o    Pediatrix Medical Group, Inc.
         o    United Payors and United Providers, Inc.
         o    Vision Twenty-One, Inc.

BT Alex. Brown calculated adjusted market values, calculated as equity market
value, plus debt, less cash, as multiples of latest 12 months revenues, earnings
before interest, taxes, depreciation and amortization, and earnings before
interest and taxes, and equity market values as a multiple of the latest 12
months and estimated calendar years 1999 and 2000 earnings per share. All
multiples were based on closing stock prices on February 26, 1999. Earnings per
share estimates for the selected companies were based on research analysts'
estimates and earnings per share estimates for Concentra were based on internal
estimates of the management of Concentra. This analysis indicated the following
implied adjusted market value and equity market value multiples for the selected
companies, as compared to the implied multiples for Concentra based on the
merger consideration of $16.50 per share:




                                       24
<PAGE>
<TABLE>
<CAPTION>
                                                                                                       MULTIPLES FOR
                                                              IMPLIED MULTIPLES OF                  CONCENTRA IMPLIED BY
                                                               SELECTED COMPANIES                   MERGER CONSIDERATION
                                                        ----------------------------         --------------------------------
                                                           MEAN              RANGE
                                                           ----              -----
ADJUSTED MARKET VALUES:

<S>                                                       <C>             <C>                                <C>
Latest 12 months revenues .........................        1.9x            0.6x - 5.9x                        1.6x
Latest 12 months earnings before
  interest, taxes, depreciation and
  amortization ....................................        8.0x           3.4x - 13.7x                        8.9x
Latest 12 months earnings before
  interest and taxes ..............................       10.6x           4.0x - 15.4x                       11.2x

EQUITY MARKET VALUES:

Latest 12 months earnings per
  share ...........................................       16.5x          11.2x - 23.9x                       17.8x
Estimated calendar year 1999
  earnings per share ..............................       12.1x           7.5x - 19.0x                       17.3x
Estimated calendar year 2000
  earnings per share ..............................        9.9x           5.8x - 15.8x                       15.0x
</TABLE>

ANALYSIS OF SELECTED MERGER AND ACQUISITION TRANSACTIONS

         BT Alex. Brown reviewed the purchase prices and implied transaction
multiples in the following eight proposed, pending or completed merger and
acquisition transactions announced since January 1, 1995 having transaction
values greater than $150 million in the specialty managed care and physician
practice management sectors of the healthcare services industry:

<TABLE>
<CAPTION>
                ACQUIROR                                      TARGET
                --------                                      ------

<S>                                                    <C>
o  Golder, Thoma, Cressey, Rauner Inc.,                CompDent Corporation
   TA Associates, Inc., NMS Capital Partners
o  Protective Life Corporation                         United Dental Corporation
o  Magellan Health Services, Inc.                      Merit Behavioral Care Corporation
o  MedPartners, Inc.                                   Talbert Medical Management Holdings, Inc.
o  Magellan Health Services, Inc.                      Human Affairs International, Incorporated
o  Laidlaw, Inc.                                       EmCare Holdings, Inc.
o  Columbia/HCA Healthcare Corporation                 Value Health, Inc.
o  Kohlberg Kravis Roberts & Co.                       Merit Behavioral Care Corporation
</TABLE>

BT Alex. Brown calculated adjusted market values in the selected transactions as
multiples of latest 12 months revenues, earnings before interest, taxes,
depreciation and amortization and earnings before interest and taxes, and equity
market values as multiples of latest 12 months and one-year forward net income.
All multiples were based on publicly available information at the time of
announcement of the relevant transaction. This analysis indicated the following
implied adjusted market value and equity market value multiples for the selected
transactions, as compared to the implied multiples for Concentra based on the
merger consideration of $16.50 per share:

<TABLE>
<CAPTION>
                                                                                                       MULTIPLES FOR
                                                              IMPLIED MULTIPLES OF                  CONCENTRA IMPLIED BY
                                                               SELECTED COMPANIES                   MERGER CONSIDERATION
                                                        ----------------------------         --------------------------------
                                                           MEAN              RANGE
                                                           ----              -----
ADJUSTED MARKET VALUES:

<S>                                                       <C>             <C>                                <C>
Latest 12 months revenues ...........................      1.3x            0.3x - 3.4x                        1.6x
</TABLE>


                                       25
<PAGE>
<TABLE>
<CAPTION>
                                                                                                       MULTIPLES FOR
                                                              IMPLIED MULTIPLES OF                  CONCENTRA IMPLIED BY
                                                               SELECTED COMPANIES                   MERGER CONSIDERATION
                                                        ----------------------------         --------------------------------
                                                           MEAN              RANGE
                                                           ----              -----
<S>                                                       <C>             <C>                                <C>
Latest 12 months earnings before
  interest, taxes, depreciation
  and amortization ..................................     11.6x           6.5x - 16.0x                        8.9x
Latest 12 months earnings before
  interest and taxes ................................     13.1x           8.5x - 20.4x                       11.2x

EQUITY MARKET VALUES:

Latest 12 months net income .........................     21.4x          15.4x - 30.5x                       17.9x
One-year forward net income .........................     17.6x          12.7x - 21.6x                       16.6x
</TABLE>

DISCOUNTED CASH FLOW ANALYSIS

         BT Alex. Brown performed a discounted cash flow analysis to estimate
the present value of the stand-alone, unlevered, after-tax free cash flows that
Concentra could generate based on internal estimates of the management of
Concentra for the fiscal years 1999 through 2003. The stand-alone discounted
cash flow analysis was determined by: (a) adding the present value of the
projected free cash flows over the fiscal years 1999 through 2003; (b) adding
the present value of the estimated terminal values in fiscal year 2003; and (c)
subtracting the current net debt for Concentra. The range of estimated terminal
values for Concentra was calculated by applying terminal value multiples ranging
from 6.0x to 9.0x to Concentra's projected fiscal year 2003 earnings before
interest, taxes, depreciation and amortization. The present value of the cash
flows and terminal values were calculated using discount rates ranging from 15%
to 19%. This analysis yielded an implied range for Concentra of approximately
$10.04 to $19.71 per share, as compared to the merger consideration of $16.50
per share.

PREMIUM ANALYSIS

         BT Alex. Brown analyzed the premiums paid in 84 transactions, 16
selected healthcare transactions and nine selected healthcare services
transactions having transaction values of between $750 million and $1.25 billion
effected since January 1, 1995, based on the target company's stock price one
day and one month prior to public announcement of the transaction. This analysis
indicated the following premiums in the selected transactions, as compared to
the implied premiums in the merger one day and one month prior to public
announcement of the merger and one day prior to public disclosure of the Federal
Trade Commission's granting of early termination of WCAS's HSR Act filing in
which WCAS disclosed its intention to acquire in excess of $15 million of
Concentra common stock:

<TABLE>
<CAPTION>
                                                                                                  PREMIUM ONE DAY
                                             PREMIUM                        PREMIUM                PRIOR TO EARLY
                                         ONE DAY PRIOR TO              ONE MONTH PRIOR TO          TERMINATION OF
                                       PUBLIC ANNOUNCEMENT             PUBLIC ANNOUNCEMENT              WCAS'S
                                    -------------------------      ---------------------------

                                     MEAN           RANGE             MEAN           RANGE          HSR ACT FILING
                                    ------         -------           ------        -------          --------------

<S>                                 <C>       <C>                    <C>       <C>
Selected Transactions (84) ......   26.3%     (24.3%) - 118.5%       35.3%     (27.5%) - 118.5%
Selected Health Care
  Transactions (16) .............   37.7%      (5.2%) - 118.5%       45.5%        5.5% - 118.5%
Selected Health Care
  Services Transactions (9) .....   34.1%        7.7% - 118.5%       49.5%       18.9% - 118.5%
Merger Premium Implied
  for Concentra .................               55.3%                            52.6%                   161.4%
</TABLE>




                                       26
<PAGE>

OTHER FACTORS

         In rendering its opinion, BT Alex. Brown also reviewed and considered,
among other things:

         o    historical and projected financial data for Concentra;

         o    historical market prices and trading volumes for Concentra common
              stock and the relationship between movements in Concentra common
              stock, movements in the common stock of the selected companies and
              movements in the S&P 500 Index;

         o    selected analysts' reports on Concentra, including calendar years
              1999 and 2000 earnings per share estimates and long-term growth
              rate estimates of such analysts;

         o    the implied price per share of Concentra common stock assuming
              completion of the merger on June 30, 1999 based on the present
              value of Concentra's terminal value at the end of fiscal year
              2002; and

         o    the implied equity returns to the equity investors based on
              internal estimates of the management of Concentra assuming the
              merger occurs.

         The summary above is not a complete description of the opinion of BT
Alex. Brown to the Board and special committee or the financial analyses
performed and factors considered by BT Alex. Brown in connection with its
opinion. The preparation of a fairness opinion is a complex analytic process
involving various determinations as to the most appropriate and relevant methods
of financial analyses and the application of those methods to the particular
circumstances and, therefore, a fairness opinion is not readily susceptible to
summary description. BT Alex. Brown believes that its analyses and the summary
above must be considered as a whole and that selecting portions of its analyses
and factors or focusing on information presented in tabular format without
considering all analyses and factors or the narrative description of the
analyses could create a misleading or incomplete view of the processes
underlying BT Alex. Brown's analyses and opinion.

         In performing its analyses, BT Alex. Brown made numerous assumptions
with respect to industry performance, general business, economic, market and
financial conditions and other matters, many of which are beyond the control of
Concentra. No company, transaction or business used in such analyses as a
comparison is identical to Concentra or the proposed merger, nor is an
evaluation of the results of those analyses entirely mathematical; rather, the
analyses involve complex considerations and judgments concerning financial and
operating characteristics and other factors that could affect the merger, public
trading or other values of the companies, business segments or transactions
being analyzed. The estimates contained in BT Alex. Brown's analyses and the
ranges of valuations resulting from any particular analysis are not necessarily
indicative of actual values or future results, which may be significantly more
or less favorable than those suggested by its analyses. In addition, analyses
relating to the value of businesses or securities do not purport to be
appraisals or to reflect the prices at which businesses or securities actually
may be sold. Accordingly, BT Alex. Brown's analyses and estimates are inherently
subject to substantial uncertainty.

         BT Alex. Brown is an internationally recognized investment banking firm
and, as a customary part of its investment banking business, is engaged in the
valuation of businesses and their securities in connection with mergers and
acquisitions, negotiated underwritings, private placements and valuations for
estate, corporate and other purposes. Concentra and the special committee
selected BT Alex. Brown based on BT Alex. Brown's reputation, expertise and
familiarity with Concentra. BT Alex. Brown and its affiliates have in the past
provided financial services to Concentra and WCAS and its affiliates unrelated
to the proposed merger, for which services BT Alex. Brown and its affiliates
have received compensation. BT Alex. Brown maintains a market in Concentra
common stock and regularly publishes research reports regarding the businesses
and securities of Concentra and other publicly traded companies in the
healthcare industry. In the ordinary course of business, BT Alex. Brown and its
affiliates may actively trade or hold the securities and other instruments and
obligations of Concentra for their own account and for the accounts of customers
and, accordingly, may at any time hold a long or short position in such
securities, instruments or obligations.


                                       27
<PAGE>

         The type and amount of consideration payable in the merger was
determined through negotiation between Concentra and WCAS. BT Alex. Brown did
not recommend the amount of consideration to be paid to the Concentra common
stockholders. Although BT Alex. Brown provided financial advice to Concentra
during the course of negotiations, the decision to enter into the merger was
solely that of the Board and special committee. BT Alex. Brown's opinion and
financial analyses were only one of many factors considered by the Board and
special committee in their evaluation of the proposed merger and should not be
viewed as determinative of the views of the Board, special committee or
management with respect to the merger consideration or the merger.

         Pursuant to the terms of BT Alex. Brown's engagement, Concentra has
agreed to pay BT Alex. Brown upon completion of the merger an aggregate
financial advisory fee equal to 0.75% of the aggregate consideration, including
liabilities assumed, payable in connection with the merger. In addition,
Concentra has agreed to reimburse BT Alex. Brown for its reasonable travel and
other out-of-pocket expenses, including reasonable fees and disbursements of
counsel, and to indemnify BT Alex. Brown and related parties against
liabilities, including liabilities under the federal securities laws, relating
to, or arising out of, its engagement. BT Alex. Brown's opinion is available for
inspection and copying at Concentra's principal executive offices during its
regular business hours.

PURPOSE AND REASONS OF WCAS AND THE MEMBERS OF MANAGEMENT FOR THE MERGER

         The purpose of WCAS and the Members of Management for engaging in the
transactions contemplated by the merger agreement is to enable WCAS and Ferrer
Freeman to acquire 100% ownership of Concentra. WCAS and the Members of
Management believe that as a private company Concentra will have greater
operating flexibility to focus on enhancing value by emphasizing growth (both
internally and through acquisitions) and operating cash flow without the
constraint of the public market's emphasis on quarterly earnings. This
assessment by WCAS and the Members of Management is based upon publicly
available information regarding Concentra, WCAS's due diligence investigation of
Concentra and WCAS's experience in investing in companies in the healthcare
industry. While WCAS and the Members of Management believe that there will be
significant opportunities associated with its investment in Concentra, there are
also substantial risks that such opportunities may not be fully realized.

         As a result of the merger, WCAS will acquire a 93 percent interest in
Concentra and will invest approximately $392,432,000 in equity financing and up
to $110,000,000 in subordinated indebtedness and has received commitments from
various lenders to provide financing of $190,000,000 in senior subordinated
notes, $375,000,000 in term loans and a $100,000,000 revolving credit facility.
The Members of Management will acquire a portion of these shares. Ferrer Freeman
will invest approximately $30,600,000 in equity in exchange for an approximate
seven percent interest in Concentra. In addition, certain members of Concentra's
current management will have amended and restated employment agreements with the
surviving corporation.

POSITION OF WCAS AND THE MEMBERS OF MANAGEMENT AS TO FAIRNESS OF THE MERGER

         WCAS and the Members of Management have considered the analyses and
findings of the special committee and the Board (described in detail in "-- The
Special Committee's and the Board's Recommendation") with respect to the
fairness of the merger to Concentra's stockholders. Each of the Members of
Management and WCAS adopts the analysis and findings of the Special Committee
and the Board with respect to the fairness of the merger and believes that the
merger, the merger agreement and the transactions contemplated thereby are fair
and in the best interests of Concentra's common stockholders. Each of the
Members of Management intend to vote all shares owned by each of them in favor
of the merger agreement. In a letter agreement dated March 24, 1999, WCAS agreed
to and to cause its affiliates to vote all shares of Concentra common stock
owned by WCAS or any of its affiliates in favor of the merger. Neither WCAS nor
the Members of Management makes any recommendation as to how you should vote on
the merger agreement. WCAS has financial interests in the merger and certain
members of Concentra's management have financial and employment interests in the
merger. See "SPECIAL FACTORS -- Interests of Certain Persons in the Merger."

INTERESTS OF CERTAIN PERSONS IN THE MERGER

         In considering the recommendations of the Board, you should be aware
that certain members of the Board and certain of Concentra's executive officers
have certain interests in the merger that are in addition to your interest as a
Concentra stockholder generally.



                                       28
<PAGE>

         EMPLOYMENT AGREEMENTS. Yankee and each of Daniel J. Thomas, James M.
Greenwood, Richard A. Parr II, W. Tom Fogarty, M.D. and Kenneth Loffredo have
agreed that at or prior to the effective time of the merger they will amend and
restate the existing employment agreements between such individuals and
Concentra. Concentra will enter into a new employment agreement with Thomas E.
Kiraly on substantially the same terms as detailed below. The principal terms of
the amended and restated employment agreements are as follows:

         o    each agreement would have a term of two years, subject to
              automatic renewal for additional one-year terms, unless
              terminated in accordance with the agreement's terms;

         o    each agreement would provide for compensation consisting of base
              salary amounts, bonuses at the discretion of the Board of
              Directors of Concentra and participation in any employee benefit
              plan adopted by Concentra for its employees;

         o    each agreement would provide for a severance payment in the event
              of termination by Concentra without cause or resignation by the
              employee for good reason consisting of two years' base salary for
              Mr. Thomas and one year's base salary for Messrs. Greenwood,
              Kiraly, Parr, Fogarty and Loffredo; provided, however, if
              termination by Concentra occurs within 12 months following the
              merger, each agreement would provide for a severance payment
              consisting of two and one half years' base salary for Mr. Thomas
              and two years' base salary for each of Messrs. Greenwood, Kiraly,
              Parr, Fogarty and Loffredo.

         STOCK OPTIONS AND RESTRICTED STOCK. The merger agreement provides that
Concentra will use its best efforts to effect the cancellation or amendment at
the effective time of the merger of all outstanding options to acquire Concentra
common stock in exchange for a cash payment equal to $16.50 payable to such
holder had he exercised such option less the exercise price per share of such
option. If all of the options to acquire Concentra common stock were exchanged
for cash as described above, the executive officers and other key executives of
Concentra would be entitled to a maximum aggregate cash payment of $7,530,000
and the directors of Concentra would be entitled to a maximum aggregate cash
payment of $1,447,241. In addition, the executive officers and other key
executives of Concentra will be granted new options to acquire up to 10.5% of
Concentra common stock following the merger at a price per share of $16.50. Some
of these new options will be non-qualified and vest 20% per year over a five
year period while other new options will vest upon the achievement of certain
performance criteria.

         OFFICERS' AND DIRECTORS' INDEMNIFICATION INSURANCE. The merger
agreement provides that, for a period of six years after the effective time, the
surviving corporation will indemnify the present and former officers, directors,
employees and agents of Concentra and its subsidiaries from liabilities arising
out of actions or omissions in their capacity as such prior to the effective
time of the merger, to the full extent permitted under Delaware law or as
provided in Concentra's or its subsidiaries' organizational documents or any
written indemnification agreements. In addition, the surviving entity will
maintain directors' and officers' insurance coverage for six years after the
effective time on terms no less favorable to such indemnified parties than
existing insurance coverage, but the surviving corporation will not be required
to pay an annual premium in excess of 200% of the last premium paid prior to the
date of the merger agreement.

         AFFILIATION WITH WCAS. John K. Carlyle, a director of Concentra, has
served as Concentra's acting Chairman since September 1998. Mr. Carlyle also
served as Concentra's Chairman from August 1997 to January 1998. Prior to the
formation of Concentra resulting from the merger of OccuSystems, Inc.
("OccuSystems") and CRA Managed Care, Inc. in August 1997, Mr. Carlyle was
OccuSystems' Chairman and Chief Executive Officer from 1995 through 1997. An
investment partnership affiliated with WCAS was the primary venture capital
investor in OccuSystems and is currently an investor in MAGELLA Healthcare
Corporation, a neonatology and perinatology physician practice management
company of which Mr. Carlyle is the President and Chief Executive Officer. In
addition, Paul Queally, a general partner of Welsh, Carson, Anderson & Stowe,
served on Concentra's Board until May 1998.

         INVESTMENT IN CONCENTRA. The Members of Management have agreed to
acquire a portion of WCAS's interest in Concentra upon consummation of or after
the merger. The exact interest Members of Management will hold after the merger
has not yet been determined.

         PAYMENTS TO ADVISORS. Donaldson, Lufkin & Jenrette has previously
provided advisory services to WCAS and Concentra and has in each instance
charged market rates for the services rendered. Similarly, BT Alex. Brown


                                       29

<PAGE>
has also previously provided advisory services to Concentra and other portfolio
companies of WCAS at market rates for services rendered. Neither Donaldson,
Lufkin & Jenrette nor BT Alex. Brown believe that the foregoing arrangements
affect their ability to independently and impartially evaluate this merger.


CERTAIN EFFECTS OF THE MERGER

         As a result of the merger, the entire equity interest in Concentra will
be owned by WCAS and Ferrer Freeman through their ownership of Yankee capital
stock. After the merger is complete, Concentra's officers who are currently
subject to Section 16(b) of the Exchange Act will be granted options to acquire
up to 3% of Concentra's common stock on a fully diluted basis. You will no
longer have any interest in, and will not be stockholders of, Concentra, and
therefore will not participate in Concentra's future earnings and potential
growth. Instead, you will have the right to receive $16.50 in cash, without
interest, for each share held (other than shares in respect of which appraisal
rights have been perfected). An equity investment in Concentra following the
merger involves substantial risk resulting from the future borrowings that will
be required to purchase the Concentra common stock from Concentra's stockholders
and to fund the capital expenditures and acquisitions necessary to execute
Concentra's business strategy. Nonetheless, if Concentra successfully executes
its business strategy, the value of an equity investment could be considerably
greater than its original cost. See "-- Conflicts of Interest" and "Cautionary
Statement Concerning Forward-looking Information."

         In addition, the Concentra common stock will no longer be traded on
Nasdaq and price quotations for sales of shares in the public market will no
longer be available. The registration of the Concentra common stock under the
Securities Exchange Act of 1934 will terminate and Concentra will no longer file
periodic or annual reports.

FINANCING OF THE MERGER

         It is estimated that approximately $1,118.0 million will be required to
consummate the merger, repurchase Concentra's existing convertible subordinated
notes dues 2001 and 2003 and pay related fees and expenses. These funds are
expected to come from the following sources:

         o    an equity investment by WCAS of approximately $392.4 million,

         o    an equity investment by Ferrer Freeman of approximately $30.6
              million,

         o    borrowings by Concentra Management Services, Inc., a wholly-owned
              subsidiary of Concentra ("Operating Company"), of approximately
              $375.0 million under new credit facilities (the "New Credit
              Facilities"),

         o    borrowings by Operating Company of approximately $190.0 million
              from the issuance of senior subordinated notes (the "Senior
              Subordinated Notes"),

         o    borrowings by Concentra of approximately $110.0 million from the
              issuance of senior discount notes (the "Discount Notes"), and

         o    $65.4 million from Concentra's available cash reserves.

The merger is subject to a financing contingency which states that Yankee is not
obligated to perform its obligations under the merger agreement if financing
cannot be obtained on terms no less favorable in material respects to the terms
stated in the financing commitments.

         SENIOR SUBORDINATED NOTES. We anticipate that Operating Company will
raise approximately $190.0 million of the funds necessary to consummate the
merger and related transactions through the issuance of the Senior Subordinated
Notes in the private capital markets. Donaldson, Lufkin & Jenrette Securities
Corporation and Chase Securities, Inc. have each provided WCAS with letters
dated February 24, 1999 stating that they are highly confident, subject to the
assumptions in those letters, that Operating Company will be able to raise the
necessary funds from the issuance of such Senior Subordinated Notes. We
anticipate that the Senior Subordinated Notes will be:


                                       30

<PAGE>

         o    subordinated to the New Credit Facilities,

         o    have registration rights,

         o    redeemable by Operating Company after 2004, or up to 35% of the
              notes will be redeemable by Concentra with the net proceeds from
              certain sales of equity,

         o    redeemable by Operating Company at the option of the holders upon
              a change of control, and

         o    subject to customary covenants for this type of financing,
              including restrictions on indebtedness, dividends, liens,
              affiliate transactions, stock repurchases, assets sales and
              mergers.

         DISCOUNT NOTES. We anticipate that Concentra, as the surviving
corporation in the merger, will raise approximately $110.0 million of the funds
necessary to consummate the merger and related transactions through the issuance
of senior discount notes in the private capital markets. The Discount Notes will
be issued with warrants to purchase Concentra common stock at a nominal exercise
price. Chase Capital Partners and WCAS have provided binding commitments in the
form of commitment letters dated February 24, 1999 and March 1, 1999,
respectively, to purchase the Discount Notes from Concentra. Concentra will not
be required to pay any interest on the Discount Notes until 2004. We anticipate
that the Discount Notes will be:

         o    subordinated to the New Credit Facilities,

         o    guaranteed by Concentra and its subsidiaries, other than its joint
              ventures,

         o    have registration rights,

         o    redeemable by Concentra after 2004, or up to 35% of the notes will
              be redeemable by Concentra with the net proceeds from certain
              sales of equity,

         o    redeemable by Concentra at the option of the holders upon a change
              of control, and

         o    subject to customary covenants for this type of financing,
              including restrictions on indebtedness, dividends, liens,
              affiliate transactions, stock repurchases, assets sales and
              mergers.

         NEW CREDIT FACILITIES. We anticipate that Operating Company will raise
approximately $375.0 million of the funds necessary to consummate the merger and
related transactions through borrowings under the New Credit Facilities. Chase
Securities, Inc., The Chase Manhattan Bank, DLJ Capital Funding, Inc., Credit
Suisse First Boston and Fleet National Bank have provided a binding commitment
to provide the funds for the New Credit Facilities in the form of a commitment
letter dated February 26, 1999 (the "Bank Commitment Letter"). It is expected
that the New Credit Facilities will include, provide or be:

         o    $375 million of term loan facilities,

         o    a $100 million revolving loan facility,

         o    terms of six to eight years,

         o    guaranteed by Concentra and its subsidiaries, other than its joint
              ventures,

         o    loans may be prepaid and commitments may be reduced in certain
              amounts,

         o    prepayment will be mandatory with the net proceeds from certain
              sales of equity, incurrence of certain indebtedness and certain
              asset sales and with 50% of excess cash flow,



                                       31
<PAGE>

         o    secured by a perfected interest in substantially all of Operating
              Company's tangible and intangible assets,

         o    customary representations and warranties, and

         o    subject to customary covenants, including delivery of financial
              statements, reports, accountants' letters, projections, officers'
              certificates, payment of other material obligations, continuation
              of business, compliance with laws, maintenance of property and
              insurance, maintenance of books and records, litigation,
              compliance with environmental laws, further assurances and
              limitations on indebtedness, liens, guarantee obligations,
              mergers, sales of assets, leases, dividends, capital expenditures,
              investments, optional payments, transactions with affiliates, sale
              and leasebacks and changes in sale of business.

         The foregoing is only a summary of the Bank Commitment Letter and is
qualified in its entirety by reference to the actual terms of the Bank
Commitment Letter, which is filed as an exhibit to Concentra's Schedule 13E-3 of
which this Proxy Statement is a part.

         Definitive agreements for the issuance and sale of the Senior
Subordinated Notes, the Discount Notes and the New Credit Facilities have not
been negotiated or completed. Accordingly, the terms of such arrangements
described above may change as a result of the negotiation of definitive
agreements. In addition, each of the financings described above is subject to
the satisfaction of numerous customary conditions, including the condition that
no material adverse change to Concentra has occurred and that the merger has
been consummated.

CONDUCT OF CONCENTRA'S BUSINESS AFTER THE MERGER

         WCAS is continuing to evaluate Concentra's business, practices,
operations, properties, corporate structure, capitalization, management and
personnel to determine what changes, if any, will be desirable. Subject to the
foregoing, WCAS expects that the day-to-day business and operations of Concentra
after the merger will be conducted substantially as they are currently being
conducted by Concentra. WCAS does not currently intend to dispose of any assets
of Concentra other than in the ordinary course of business. Additionally, WCAS
does not currently contemplate any material change in the composition of
Concentra's current management, although after the merger, the Board will
consist of Messrs. John K. Carlyle, Russell L. Carson, Carlos Ferrer, D. Scott
Mackesy, Steve Nelson, Andrew M. Paul, Paul B. Queally, Daniel J. Thomas and
Sean M. Traynor.

MATERIAL FEDERAL INCOME TAX CONSEQUENCES

         The following discussion summarizes the material federal income tax
considerations relevant to the merger that are generally applicable to holders
of Concentra common stock. This discussion is based on currently existing
provisions of the Internal Revenue Code of 1986, as amended (the "Code"),
existing and proposed Treasury Regulations thereunder and current administrative
rulings and court decisions, all of which are subject to change. Any such
change, which may or may not be retroactive, could alter the tax consequences to
the holders of Concentra common stock as described herein. Special tax
consequences not described below may be applicable to particular classes of
taxpayers, including financial institutions, broker-dealers, persons who are not
citizens or residents of the United States or who are foreign corporations,
foreign partnerships or foreign estates or trusts, persons who will own stock of
Concentra (actually or constructively, under certain constructive ownership
rules in the Code) after the merger, and holders who acquired their stock
through the exercise of an employee stock option or otherwise as compensation.

         The receipt of the merger consideration in the merger by holders of
Concentra common stock will be a taxable transaction for federal income tax
purposes. Each holder's gain or loss per share of Concentra common stock will be
equal to the difference between $16.50 and the holder's basis in that particular
share of the Concentra common stock. Such gain or loss generally will be a
capital gain or loss. In the case of individuals, trusts and estates, such
capital gain will be subject to a maximum federal income tax rate of 20% for
shares of Concentra common stock held for more than 12 months prior to the date
of disposition.

         A holder of Concentra common stock may be subject to backup withholding
at the rate of 31% with respect to merger consideration received pursuant to the
merger, unless the holder (i) is a corporation or comes


                                       32

<PAGE>

within certain other exempt categories and, when required, demonstrates this
fact or (ii) provides a correct taxpayer identification number ("TIN"),
certifies concerning no loss of exemption from backup withholding and otherwise
complies with applicable requirements of the backup withholding rules. To
prevent the possibility of backup federal income tax withholding on payments
made with respect to shares of Concentra common stock pursuant to the merger,
each holder must provide the exchange agent with his current TIN by completing a
Form W-9 or Substitute Form W-9. A holder of Concentra common stock who does not
provide Concentra with his or her correct TIN may be subject to penalties
imposed by the Internal Revenue Service (the "IRS"), as well as backup
withholding. Any amount withheld under these rules will be creditable against
the holder's federal income tax liability. Concentra (or its agent) will report
to the holders of Concentra common stock and the IRS the amount of any
"reportable payments," as defined in Section 3406 of the Code, and the amount of
tax, if any, withheld with respect thereto.

         THE FOREGOING TAX DISCUSSION IS INCLUDED FOR GENERAL INFORMATION ONLY
AND IS BASED UPON PRESENT LAW. THE FOREGOING DISCUSSION DOES NOT DISCUSS TAX
CONSEQUENCES UNDER THE LAWS OF STATES OR LOCAL GOVERNMENTS OR ANY OTHER
JURISDICTION OR TAX CONSEQUENCES TO CATEGORIES OF STOCKHOLDERS THAT MAY BE
SUBJECT TO SPECIAL RULES, SUCH AS FOREIGN PERSONS, TAX-EXEMPT ENTITIES,
INSURANCE COMPANIES, FINANCIAL INSTITUTIONS AND DEALERS IN STOCKS AND
SECURITIES. THE FOREGOING DISCUSSION MAY NOT BE APPLICABLE TO A STOCKHOLDER WHO
ACQUIRED HIS OR HER SHARES OF CONCENTRA COMMON STOCK PURSUANT TO THE EXERCISE OF
STOCK OPTIONS OR OTHERWISE AS COMPENSATION. EACH HOLDER OF CONCENTRA COMMON
STOCK SHOULD CONSULT SUCH HOLDER'S OWN TAX ADVISOR CONCERNING THE SPECIFIC TAX
CONSEQUENCES OF THE MERGER TO SUCH HOLDER, INCLUDING THE APPLICATION AND EFFECT
OF FEDERAL, STATE, LOCAL AND OTHER TAX LAWS AND THE POSSIBLE EFFECT OF CHANGES
IN SUCH TAX LAWS.

                               THE SPECIAL MEETING

DATE, TIME AND PLACE OF THE SPECIAL MEETING

         The special meeting will be held on ___________, 1999 at 10:00 a.m.,
local time at _________________.

MATTERS TO BE CONSIDERED AT THE SPECIAL MEETING

         The purpose of the special meeting is to consider and vote upon a
proposal to approve and adopt an Amended and Restated Agreement and Plan of
Merger, dated as of March 24, 1999, by and between Yankee, a newly-formed
Delaware corporation, and Concentra. Pursuant to the merger agreement, Yankee
will be merged with and into Concentra and each outstanding share of Concentra
common stock will be converted into the right to $16.50 in cash, without
interest, other than shares of Concentra common stock held by stockholders who
are entitled to and have perfected their dissenters' appraisal rights. Shares
held by Concentra, its subsidiaries, Yankee or its affiliates will be canceled
in the merger. Accordingly, upon consummation of the merger, the current shares
of Concentra common stock will cease to represent ownership interests in
Concentra.

         The Board has determined that the merger is fair to, advisable and in
the best interests of the stockholders of Concentra and has approved and adopted
the merger agreement. The Board unanimously recommends that the stockholders of
Concentra vote FOR approval and adoption of the merger agreement.

PROXY SOLICITATION

         Concentra is soliciting your proxy pursuant to this proxy statement.
Concentra will pay all expenses incurred in connection with solicitation of the
enclosed proxy. Officers, directors and regular employees of Concentra may
solicit proxies in person or by telephone. They will receive no additional
compensation for their services. In addition, Concentra has retained Georgeson &
Company Inc. to solicit proxies for a fee of $10,000 plus expenses. Concentra
has requested brokers and nominees who hold stock in their names to furnish this
proxy statement to their customers, and Concentra will reimburse these brokers
and nominees for their related out-of-pocket expenses. This proxy statement and
the accompanying proxy card are being mailed to stockholders on or about
____________, 1999.

RECORD DATE AND QUORUM REQUIREMENT

         The Concentra common stock is the only outstanding voting security of
Concentra. The Board has fixed the close of business on _______________, 1999 as
the record date for the determination of stockholders entitled


                                       33

<PAGE>

to notice of, and to vote at, the special meeting and any adjournments or
postponements of the special meeting. If you hold Concentra common stock at the
close of business on the record date, you will be entitled to one vote for each
share you hold on each matter submitted to a vote of stockholders. At the close
of business on the record date, there were _____ shares of Concentra common
stock issued and outstanding held by _______ holders of record.

         The holders of a majority of the outstanding shares entitled to vote at
the special meeting must be present in person or represented by proxy to
constitute a quorum for the transaction of business. Abstentions are counted as
present for purposes of determining the presence or absence of a quorum for the
transaction of business.

VOTING PROCEDURES

         Approval of the merger agreement, which is attached as Appendix A
hereto, will require the affirmative vote of the holders of a majority of the
outstanding shares of Concentra common stock, whether affiliated or unaffiliated
with Concentra, entitled to vote at the special meeting. If you fail to vote, or
vote to abstain, it will have the same legal effect as a vote cast against
approval. Your broker and, in many cases, your nominee will not have
discretionary power to vote on the proposal to be presented at the special
meeting. Accordingly, you should instruct your broker or nominee how to vote. A
broker non-vote will have the same effect as a vote against the merger.

         If there are insufficient votes to approve the merger agreement at the
special meeting, your proxy may be voted to adjourn the special meeting in order
to solicit additional proxies in favor of approval of the merger agreement if
you voted in favor of the merger agreement or gave no voting instructions. If
the special meeting is adjourned or postponed for any purpose, at any subsequent
reconvening of the special meeting, your proxy will be voted in the same manner
as it would have been voted at the original convening of the meeting unless you
withdraw or revoke your proxy. Your proxy may be voted this way even though it
may have been voted on the same or any other matter at a previous meeting.

         Under Delaware law, if you do not vote in favor of the merger agreement
and comply with certain notice requirements and other procedures, you will have
the right to dissent and to be paid cash for the "fair value" of your shares as
finally determined under such procedures. This payment may be more, the same as,
or less than the consideration to be received by other stockholders of Concentra
under the terms of the merger agreement. If you fail to follow such procedures
precisely, you may lose your appraisal rights. See "Rights of Dissenting
Stockholders."

VOTING AND REVOCATION OF PROXIES

         You may revoke your proxy at any time before it is exercised by (i)
filing with the Secretary of Concentra an instrument revoking it, (ii)
submitting a properly executed proxy bearing a later date or (iii) voting in
person at the special meeting. Subject to such revocation, all your shares
represented by a properly executed proxy received by the Secretary of Concentra
will be voted in accordance with your instructions, and if no instructions are
indicated, will be voted to approve and adopt the merger agreement and in such
manner as the persons named on the enclosed proxy card in their discretion
determine upon such other business as may properly come before the special
meeting or any adjournment or postponement of the special meeting.

         Your shares will be voted by proxy at the special meeting if your proxy
card is properly signed, dated and received by the Secretary of Concentra prior
to the special meeting.

EFFECTIVE TIME OF THE MERGER AND PAYMENT FOR SHARES

         The effective time of the merger will be the date and time of filing of
the certificate of merger with the Secretary of State of the State of Delaware.
This is currently expected to occur as soon as practicable after the special
meeting, subject to approval and adoption of the merger agreement at the special
meeting and satisfaction or waiver of the other terms and conditions of the
merger agreement. Detailed instructions with regard to the surrender of
Concentra common stock certificates, together with a letter of transmittal, will
be forwarded to you by Concentra's exchange agent, ChaseMellon Shareholder
Services, L.L.C., promptly after the effective time. You should not submit your
certificates to the exchange agent until you have received these materials. The
exchange agent will send you payment of the merger consideration as promptly as
practicable following receipt by the


                                       34

<PAGE>

exchange agent of your certificates and other required documents. No interest
will be paid or accrued on the cash payable upon the surrender of certificates.
You should not send any certificates at this time.

OTHER MATTERS TO BE CONSIDERED

         The Board is not aware of any other matter that will be brought before
the special meeting. If, however, other matters are presented, your proxy will
be voted in the discretion of the holder of your proxy.

                                   THE MERGER

GENERAL DESCRIPTION

         At the effective time of the merger, Yankee will be merged with and
into Concentra. Concentra will be the surviving corporation and will continue
under the name "Concentra Managed Care, Inc." As a result of the merger, you
will receive $16.50 in cash, without interest, for each share of Concentra
common stock that you own unless you are entitled to and have perfected your
dissenters' appraisal rights. Shares held by Concentra, its subsidiaries, and
Yankee or its affiliates will be canceled in the merger. In addition, each
outstanding and unexercised vested option to purchase Concentra common stock
will be converted into the right to receive cash for the difference, if
positive, between $16.50 a share and the exercise price of the option.

CERTAIN TERMS OF THE MERGER AGREEMENT

         The following description of the merger agreement describes the
material terms of the merger agreement. The full text of the merger agreement is
attached to this proxy statement as Appendix A and is incorporated herein by
reference. Concentra encourages you to read the entire merger agreement.

         EFFECTIVE TIME OF THE MERGER. The merger agreement provides that the
closing of the merger will take place as soon as practicable after the
satisfaction or waiver of the conditions to the merger. At the closing,
Concentra will file the necessary documents with public officials to complete
the merger. Concentra expects 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.

         GENERAL. The merger agreement provides that, subject to satisfaction of
certain conditions, Yankee will be merged with and into Concentra, and that
following the merger, the separate existence of Yankee will cease and Concentra
will continue as the surviving corporation. At the effective time, and subject
to the terms and conditions set forth in the merger agreement:

         o    the stockholders of Concentra will receive $16.50 in cash, without
              interest, for each share of Concentra common stock that they own,
              other than shares held by stockholders who are entitled to and
              have perfected their dissenters' appraisal rights. Shares held by
              Concentra, its subsidiaries, and Yankee or its affiliates will be
              canceled in the merger, and

         o    each outstanding share of common stock of Yankee shall be
              converted into one share of common stock of the same class of the
              surviving corporation. As a result of the merger, the Concentra
              common stock will no longer be publicly traded.

         SURRENDER AND EXCHANGE OF STOCK CERTIFICATES. As soon as practicable
after the effective time of the merger, the surviving corporation will deposit
with ChaseMellon Shareholder Services, L.L.C., the exchange agent, an amount of
cash equal to the aggregate amount of merger consideration to be paid to holders
of Concentra common stock. The exchange agent will as promptly as practicable
send payment of the merger consideration in exchange for surrendered Concentra
common stock certificates.

         Promptly after the effective time of the merger, the exchange agent
will send to each holder of Concentra common stock certificates a letter of
transmittal containing instructions for use in effecting the exchange of such
holder's Concentra common stock certificates for the merger consideration
payable to such holder. Upon surrender to the exchange agent of an outstanding
certificate or certificates which represented Concentra common stock and
acceptance of such certificate by the exchange agent, the exchange agent will
deliver to the holder of such


                                       35

<PAGE>
certificate the amount of merger consideration owed to the holder pursuant to
the merger agreement. No interest will be paid or accrue on any cash payable to
any holder of Concentra common stock certificates.

         Any portion of the merger consideration payable to holders of Concentra
common stock certificates which remains undistributed for 183 days after the
effective time shall be delivered to the surviving corporation. Any holder of
Concentra common stock certificates who has not previously exchanged his
certificates may thereafter only look to the surviving corporation and only as a
general creditor thereof for payment of that portion of the merger consideration
owed to such holder pursuant to the merger agreement.

         If you do not have your Concentra common stock certificate, you may
make an affidavit of that fact. In addition, the surviving corporation may
require that you post a bond in a reasonable amount determined by the surviving
corporation with respect to the missing stock certificate. Upon receipt of the
affidavit and any required bond, the exchange agent will issue the merger
consideration payable to you in exchange for your Concentra common stock
certificate.

         STOCK PLAN. Concentra has agreed to use its reasonable best efforts
(which shall include, without limitation, attempting to obtain the consents, if
required, of holders of Concentra options) to effect the cancellation or
amendment at the effective time of all outstanding options to acquire Concentra
common stock in exchange for a cash payment equal to, in the case of each such
canceled Concentra option, the merger consideration payable to such holder had
he exercised such option less the exercise price per share of such option.
Concentra has also agreed to use its reasonable best efforts (which shall
include, without limitation, attempting to obtain the consents, if required, of
holders of shares of Concentra common stock which are restricted stock of
Concentra) to effect the cancellation or amendment of all restricted stock
grants in exchange for a cash payment equal to the merger consideration per
share to be paid at the time such restrictions would otherwise lapse. In
addition, Concentra's current employee stock purchase plan will be terminated at
the effective time of the merger.

         FINANCING. Yankee has provided a binding commitment, in the form of a
bid letter from WCAS to Concentra dated February 26, 1999 (the "Equity and
Bridge Commitment"), and has received binding written commitments, dated
February 26, 1999, addressed to WCAS, from Chase Securities, Inc., The Chase
Manhattan Bank, DLJ Capital Funding, Inc., Credit Suisse First Boston and Fleet
National Bank (the "Debt Commitments"), and "highly confident" letters dated
February 24, 1999, from Donaldson, Lufkin & Jenrette Securities Corporation and
Chase Securities, Inc. (the "Highly Confident Letters"). Chase Capital Partners
and WCAS have provided commitment letters dated February 24, 1999 and March 1,
1999, respectively, to purchase from Concentra senior unsecured discount notes
of Concentra (the "Senior Discount Investment Letters"). WCAS Capital Partners
III, L.P. has provided a binding commitment to provide certain bridge financing,
in the form of a commitment letter dated February 26, 1999, from WCAS to
Concentra (the "Bridge Commitment"). Ferrer Freeman Thompson & Co., LLC has
executed a subscription agreement with Yankee, on behalf of Health Care Capital
Partners L.P. and Health Care Executive Partners, L.P., pursuant to which Health
Care Capital Partners L.P. has agreed to contribute to the equity capital of
Yankee (together with the Equity and Bridge Commitment, the Debt Commitments,
the Highly Confident Letters, the Senior Discount Investment Letters and the
Bridge Commitment, the "Financing Commitments").

         CONTRIBUTION OBLIGATION. Yankee has received the undertaking of WCAS,
its sole stockholder, obligating WCAS to contribute to the equity capital of
Yankee pursuant to the terms of a letter agreement delivered to Concentra
concurrently with Yankee's execution and delivery of the merger agreement.

         RIGHTS AGREEMENT AMENDMENT. Concentra has entered into an amendment to
the Rights Agreement dated September 29, 1997 between Concentra and Chase Mellon
Shareholder Services, L.L.C. pursuant to which (i) the rights agreement and the
rights will not be applicable to the merger, (ii) the execution of the merger
agreement and the consummation of the merger shall not result in a "Distribution
Date" under the rights agreement, (iii) consummation of the merger shall not
result in WCAS, Yankee or their affiliates being an "Acquiring Person," result
in the occurrence of an event described in Section 14 of the rights agreement or
otherwise result in the ability of any person to exercise any material rights
under the rights agreement or enable to require the rights to separate from the
shares of Concentra common stock to which they are attached and (iv) the rights
agreement will expire immediately prior to the effective time of the merger.



                                       36
<PAGE>

         REPRESENTATIONS AND WARRANTIES. The merger agreement contains customary
representations and warranties of Concentra relating to various aspects of its
businesses and financial statements and other matters, including among other
things:

         o    its organization, standing and power,

         o    its capital structure,

         o    its subsidiaries,

         o    its authority to enter into and the validity and effectiveness of
              the merger agreement,

         o    the absence of conflicts, violations or defaults under its
              certificate of incorporation, bylaws and certain other agreements,

         o    the absence of required consents and approvals of certain
              governmental entities relating to the merger,

         o    the documents and reports filed with the Securities and Exchange
              Commission (the "SEC") and the accuracy and completeness of the
              information contained therein,

         o    this proxy statement and the accuracy and completeness of the
              information contained herein,

         o    the absence of defaults under material contracts,

         o    compliance with applicable laws,

         o    litigation,

         o    taxes,

         o    pension and benefit plans and other matters relating to the
              Employee Retirement Income Security Act of 1974,

         o    the stockholder vote required to consummate the merger,

         o    environmental matters,

         o    intellectual property,

         o    labor matters,

         o    material contracts,

         o    transactions with affiliates, and

         o    the amendment of the rights agreement.

         The merger agreement also contains customary representations and
warranties of Yankee relating to various aspects of its business, including
among other things:

         o    its organization, standing and power,

         o    its capital structure,

         o    its subsidiaries,



                                       37
<PAGE>

         o    its authority to enter into and the validity and effectiveness of
              the merger agreement,

         o    the absence of conflicts, violations or defaults under its
              certificate of incorporation, bylaws and certain other agreements,

         o    the absence of required consents and approvals of certain
              governmental entities relating to the merger,

         o    the documents and reports filed with the SEC and the accuracy and
              completeness of the information contained therein,

         o    this proxy statement and the accuracy and completeness of the
              information contained herein,

         o    the merger will not result in a fraudulent conveyance,

         o    the interim operations of Yankee,

         o    financing,

         o    litigation,

         o    its and its affiliates' ownership of shares of Concentra common
              stock,

         o    its solvency, and

         o    its receipt of an undertaking from its sole stockholder to
              contribute equity capital.

         The representations and warranties expire at the effective time of the
merger.

         CONDUCT OF BUSINESS PRIOR TO THE MERGER. Concentra has agreed that
prior to the merger it will operate its business in the ordinary course
consistent with past practices and will use all reasonable efforts to preserve
intact its business organizations, goodwill and relationships with third parties
and to retain the services of its current officers and key employees and
preserve its relationships with customers and suppliers.

         In addition, the merger agreement places specific restrictions on the
ability of Concentra and its subsidiaries to:

         o    declare, set aside or pay any dividends on or make other
              distributions in respect of any of its capital stock (except for
              cash dividends paid to Concentra and its wholly-owned subsidiaries
              with regard to Concentra's subsidiaries' capital stock), or set
              aside funds therefor;

         o    adjust, split, combine or reclassify any of its capital stock, or
              issue, authorize or propose the issuance of any other securities
              in respect of, in lieu of or in substitution for, shares of its
              capital stock;

         o    repurchase, redeem or otherwise acquire any shares of its capital
              stock, except as required by the terms of its securities
              outstanding or any employee benefit plan in effect as of the date
              of the merger agreement, or set aside funds therefor;

         o    other than in accordance with the rights agreement;

              o    grant any options, warrants or other rights to purchase
                   shares of capital stock;

              o    except as permitted by the merger agreement, amend the terms
                   of or reprice any Concentra stock option or restricted stock
                   grant outstanding on the date of the merger agreement or
                   amend the terms of any current Concentra stock option plan;



                                       38
<PAGE>

              o    issue, deliver, pledge, sell or otherwise encumber any shares
                   of its capital stock, any Concentra debt or any subsidiary
                   debt, or any securities convertible into, or any rights,
                   warrants or options to acquire, any such shares, Concentra
                   debt or subsidiary debt (this restriction does not apply to
                   shares issuable pursuant to Concentra stock options
                   outstanding on the date of the merger agreement, shares
                   issuable upon conversion of Concentra's 6% Convertible
                   Subordinated Notes due 2001 and 4.5% Convertible Subordinated
                   Notes due 2003 and issuances of capital stock of Concentra's
                   subsidiaries to Concentra or to a wholly-owned subsidiary of
                   Concentra);

         o    amend or propose to amend its certificate of incorporation or
              bylaws (or other organizational documents);

         o    merge or consolidate with, or acquire any equity interest in, any
              corporation, partnership, association or other business
              organization, or enter into an agreement with respect thereto,
              except for:

              o    a merger of a wholly-owned subsidiary with or into Concentra
                   or another wholly-owned subsidiary of Concentra,

              o    the creation of a wholly-owned subsidiary in the ordinary
                   course of business, or

              o    investments in joint ventures not in excess of $5,000,000 in
                   the aggregate;

         o    acquire or agree to acquire any material assets, except for
              certain acquisitions described in the merger agreement and
              acquisitions involving the payment of consideration by Concentra
              not in excess of $10,000,000 in the aggregate or as otherwise
              described in the merger agreement;

         o    make any loan or advance to, or any other investment in, any
              persons in excess of $5,000,000 in the aggregate, other than with
              respect to a wholly-owned subsidiary of Concentra existing on the
              date of the merger agreement;

         o    sell, lease, encumber or otherwise dispose of any of its material
              assets other than sales or leases in the ordinary course of
              business consistent with past practice or agree to such an
              arrangement;

         o    authorize, recommend, propose or announce an intention to adopt a
              plan of complete or partial liquidation or dissolution (other than
              by wholly-owned subsidiaries acquired by Concentra);

         o    except for increases in the compensation of employees of Concentra
              or its subsidiaries (other than directors or executive officers)
              made in the ordinary course of business and consistent with past
              practice, or as may be required by applicable law or pursuant to
              any of the employee benefit plans existing on the date of the
              merger agreement:

              o    enter into any new, or materially amend any existing,
                   employment, severance or termination agreement with any
                   director, officer or key employee, or

              o    become obligated under any new employee benefit plan, which
                   was not in existence on the date the merger agreement, or
                   amend any such existing plan or arrangement if such amendment
                   would have the effect of materially enhancing any benefits
                   thereunder;

         o    assume or incur any indebtedness for borrowed money (except for
              lease obligations incurred in the ordinary course of business and
              consistent with past practice or drawdowns under its existing
              revolving credit facility, if any, made in the ordinary course of
              business consistent with past practice);

         o    issue or sell any debt securities or warrants or rights to acquire
              any debt securities;


                                       39
<PAGE>

         o    guarantee any debt obligations of any other person (except
              obligations of wholly-owned subsidiaries of Concentra);

         o    make any material changes with respect to accounting policies,
              procedures and practices other than as required by the SEC,
              applicable law or generally accepted accounting principles;

         o    settle or compromise any claims or litigation involving payments
              by Concentra or any of its subsidiaries of more than $500,000 in
              any single instance or related instances, or that otherwise are
              material to Concentra and its subsidiaries, taken as a whole;

         o    make any tax election, or take any tax position, except in the
              ordinary and usual course of business consistent with past
              practices;

         o    enter into any license with respect to any intellectual property
              unless such license is non-exclusive and entered into in the
              ordinary course consistent with past practice or in accordance
              with existing contracts or other agreements;

         o    fail to use reasonable business efforts to keep in full force and
              effect insurance comparable in amount and scope of coverage to
              insurance now carried by it; or

         o    agree to or make any commitment to take any actions prohibited by
              the merger agreement.

         NO SOLICITATION. In the merger agreement, Concentra has agreed that:

         o    it will not, and will not authorize or permit any of its officers,
              directors, employees, agents, affiliates and other representatives
              or those of any of its subsidiaries to, initiate, encourage or
              solicit (including by way of providing information) any
              prospective acquiror or the invitation or submission of any
              inquiries, proposals or offers or any other efforts or attempts
              that constitute, or may reasonably be expected to lead to, any
              Acquisition Proposal (as herein defined) from any person or engage
              in any negotiations with respect thereto or otherwise cooperate
              with or assist or participate in, or facilitate any such proposal;

         o    it will immediately cease and cause to be terminated any existing
              solicitation, initiation, encouragement, activity, discussion or
              negotiation with any other parties prior to the date of the merger
              agreement; and

         o    it will promptly (and in any event within 24 hours) communicate to
              Yankee the terms and conditions of any Acquisition Proposal that
              it may receive and will keep Yankee informed, as promptly as
              reasonably practicable, as to the status of any actions, including
              any discussions, taken pursuant to such Acquisition Proposal.

         However, the merger agreement does not prohibit:

         o    Concentra's Board from taking and disclosing to the stockholders
              of Concentra a position contemplated by Rules 14d-9 and 14e-2(a)
              promulgated under the Securities Exchange Act of 1934; and

         o    following receipt from a third party, without any solicitation,
              encouragement or initiation, directly or indirectly, by Concentra
              or any representative of Concentra, of a bona fide Acquisition
              Proposal:

              o    Concentra from engaging in discussions or negotiations with
                   such third party and furnishing such third party information
                   concerning it and its business, properties and assets if such
                   third party executes a confidentiality agreement in
                   reasonably customary form; and



                                       40
<PAGE>

              o    the Board from withdrawing, modifying, refusing to recommend
                   or terminating the merger agreement in accordance with the
                   terms of the merger agreement but only to the extent that the
                   Board shall conclude in good faith based on the advice of
                   outside counsel that such action is necessary in order for
                   the Board to act in a manner that is consistent with its
                   fiduciary duties under applicable law.

         The term "Acquisition Proposal" means:

         o    any inquiry, proposal or offer from any person relating to any
              direct or indirect acquisition or purchase of a business that
              constitutes one-third or more of the net revenues, net income or
              assets of Concentra and its subsidiaries, taken as a whole, or
              one-third or more of the outstanding Concentra common stock,

         o    any tender offer or exchange offer that if consummated would
              result in any person beneficially owning one-third or more of the
              outstanding Concentra common stock, or

         o    any merger, consolidation, business combination, recapitalization,
              liquidation, dissolution or similar transaction involving
              Concentra (or any subsidiary or subsidiaries whose business
              constitutes one-third or more of the net revenues, net income or
              assets of Concentra and its subsidiaries taken as a whole).

         CONDITIONS PRECEDENT. The respective obligations of each party to
complete the merger are subject to the satisfaction or waiver, where
permissible, by each party prior to the effective time of the following
conditions:

         o    adoption of the merger agreement by the affirmative vote of the
              holders of a majority of the outstanding shares of Concentra
              common stock entitled to vote thereon; provided that Yankee will,
              and will cause its affiliates to, vote all shares of Concentra
              common stock owned by Yankee or any of its affiliates in favor of
              the adoption of the merger agreement;

         o    termination or expiration of the applicable waiting period (and
              any extension thereof) under the HSR Act;

         o    no restrictive order or other requirement will have been placed on
              Concentra, Yankee or the surviving corporation in connection with
              any regulatory approval;

         o    no temporary restraining order, preliminary or permanent
              injunction or other order issued by any court of competent
              jurisdiction or other legal restraint or prohibition preventing
              the consummation of the merger will be in effect; and

         o    no statute, rule, order, decree or regulation will have been
              enacted, promulgated or otherwise issued by any governmental
              entity which prohibits the consummation of the merger.

         The obligation of Yankee to effect the merger is further subject to the
following conditions:

         o    Concentra will have performed the obligations required to be
              performed by it under the merger agreement at or prior to the
              closing date and the representations and warranties of Concentra
              set forth in the merger agreement will be true and correct in all
              material respects (provided that any representation or warranty of
              Concentra contained in the merger agreement that is subject to a
              materiality, Material Adverse Effect or similar qualification
              shall not be so qualified for purposes of determining the
              existence of any breach thereof on the part of Concentra) both as
              of the date of the merger agreement and as of the closing date of
              the merger and Yankee will have received a certificate signed on
              behalf of Concentra by the chief executive officer and the chief
              financial officer of Concentra to such effect; and

         o    Yankee will have obtained the financing required to complete the
              merger substantially on the terms contemplated by the Financing
              Commitments or alternative financing on terms no less favorable in
              any material respect than those set forth in the Financing
              Commitments, unless the


                                       41

<PAGE>

              failure to obtain the financing was the result of a failure by
              Yankee to perform any covenant or condition contained therein or
              the inaccuracy of any representation or warranty of Yankee.

         The obligation of Concentra to effect the merger is further subject to
the following conditions:

         o    Yankee will have performed the obligations required to be
              performed by it under the merger agreement at or prior to the
              closing date and the representations and warranties of Yankee set
              forth in the merger agreement will be true and correct in all
              material respects (provided that any representation or warranty of
              Yankee, contained in the merger agreement that is subject to a
              materiality, Material Adverse Effect or similar qualification will
              not be so qualified for purposes of determining the existence of
              any breach thereof on the part of Yankee) both as of the date of
              the merger agreement and as of the closing date of the merger and
              Concentra will have received a certificate signed on behalf of
              Yankee by the president of Yankee to such effect;

         o    Yankee will have caused a valuation firm to have delivered to
              Concentra a solvency letter addressed to the Board in form and
              substance reasonably acceptable to Concentra as to the solvency of
              the surviving corporation after giving effect to the merger and
              the financing arrangements contemplated by Yankee with respect to
              the merger; and

         o    Yankee will have obtained the financing substantially on the terms
              contemplated by the Financing Commitments or alternative financing
              on terms no less favorable in any material respect than those set
              forth in the Financing Commitments.

         TERMINATION. The merger agreement may be terminated and the merger may
be abandoned at any time prior to the effective time as follows:

         o    by mutual written consent of Concentra and Yankee;

         o    by either Yankee or Concentra if any court of competent
              jurisdiction in the United States or other governmental entity
              shall have issued a final and non-appealable order, decree or
              ruling, or taken any other action restraining, enjoining or
              otherwise prohibiting the merger;

         o    by either Yankee or Concentra if the effective time has not
              occurred on or before August 31, 1999, but this right to terminate
              the merger agreement will not be available to any party whose
              breach of any obligation under the merger agreement has been the
              cause of or resulted in the failure of the effective time to occur
              on or before such date;

         o    by Yankee, if any of the representations and warranties of
              Concentra contained in the merger agreement fail to be true and
              correct in any material respect when made or have since become,
              and at the time of termination remain, untrue or incorrect in any
              material respect and such failure or breach shall continue
              unremedied for ten days after Concentra has received written
              notice from Yankee of the occurrence of such failure or breach
              (provided that in no event shall such ten-day period extend beyond
              August 31, 1999);

         o    by Yankee, if Concentra shall have breached or failed to comply in
              any material respect with any of its obligations under the merger
              agreement (other than as a result of a breach by Yankee of any of
              its obligations under the merger agreement) and such failure or
              breach shall continue unremedied for ten days after Concentra has
              received written notice from Yankee of the occurrence of such
              failure or breach (provided that in no event shall such ten-day
              period extend beyond August 31, 1999);

         o    by Yankee, if the Board has withdrawn or modified, in any manner
              which is materially adverse to Yankee, its recommendation or
              approval of the merger agreement and the merger;

         o    by Concentra, if any of the representations and warranties of
              Yankee contained in the merger agreement shall fail to be true and
              correct in any material respect when made or have since become,
              and at the time of termination remain, untrue or incorrect in any
              material respect and


                                       42

<PAGE>

              such failure or breach shall continue unremedied for ten days
              after Yankee has received written notice from Concentra of the
              occurrence of such failure or breach (provided that in no event
              shall such ten-day period extend beyond August 31, 1999);

         o    by Concentra, if Yankee shall have breached or failed to comply in
              any material respect with any of its obligations under the merger
              agreement (other than as a result of a breach by Concentra of any
              of its obligations under the merger agreement) and such failure or
              breach shall continue unremedied for ten days after Yankee has
              received written notice from Concentra of the occurrence of such
              failure or breach (provided that in no event shall such ten-day
              period extend beyond August 31, 1999);

         o    by Concentra, if the Board determines in the exercise of its good
              faith judgment as to fiduciary duties to Concentra's stockholders
              imposed by law, as advised by outside counsel, that such
              termination is required by reason of an Acquisition Proposal being
              made. Concentra shall notify Yankee promptly of its intention to
              terminate the merger agreement or enter into a definitive
              agreement with respect to any Acquisition Proposal; and provided
              that Concentra may not effect such termination unless Concentra
              has contemporaneously with such termination tendered payment to
              Yankee, or its designees, of the applicable Concentra termination
              fee (discussed below); or

         o    by Yankee or Concentra, if Concentra fails to obtain the required
              Concentra stockholder approval at the stockholder meeting (or any
              adjournment thereof).

         TERMINATION FEES AND EXPENSES. The merger agreement provides that
except as described below and except with respect to claims for damages incurred
as a result of a material breach of the merger agreement, all costs and expenses
incurred in connection with the merger agreement will be paid by the party
incurring such expense. Concentra will pay all costs and expenses in connection
with the printing and mailing of this proxy statement, as well as all SEC filing
fees related to the transactions contemplated by the merger agreement.

         Concentra will pay Yankee a termination fee equal to $25.0 million in
the aggregate and will reimburse Yankee for its out-of-pocket expenses up to an
aggregate amount equal to $4.0 million, so that the total possible fee paid by
Concentra in connection with the termination of the merger agreement is $29.0
million, if:

         o    the merger agreement is terminated by Yankee because the Board of
              Concentra has withdrawn or modified, in any way which is
              materially adverse to Yankee, its recommendation or approval of
              the merger agreement and the merger,

         o    the merger agreement is terminated by Concentra because in the
              exercise of its good faith judgment as to its fiduciary duties to
              its stockholders imposed by law, as advised by outside counsel,
              the Board of Concentra determines that such termination is
              required by reason of an Acquisition Proposal being made, or

         o    the merger agreement is terminated by Yankee after Concentra fails
              to obtain the required stockholder approval required to complete
              the merger and, within 275 days after such termination, Concentra
              enters into a definitive agreement with respect to a transaction
              proposed in an Acquisition Proposal that was submitted to
              Concentra prior to Concentra's stockholder meeting and Concentra
              consummates such transaction within 462 days after such
              termination.

         If Yankee is in material breach of its obligations under the merger
agreement, Concentra will not be obligated to pay Yankee a termination fee or
reimburse Yankee for its expenses. Concentra has agreed to pay any termination
fee owed by it to Yankee on the date of the termination of the merger agreement
or, in the case of a fee owed due to consummation of another transaction, on the
date such transaction is consummated. Any reimbursement for expenses owed to
Yankee by Concentra will be paid when the termination fee is paid provided that
documentation of such expenses has been received by Concentra.

         INDEMNIFICATION. The merger agreement provides that, for a period of
six years after the effective time, the surviving corporation will indemnify the
present and former officers, directors, employees and agents of Concentra


                                       43

<PAGE>

and its subsidiaries from liabilities arising out of actions or omissions in
their capacity as such prior to or at the effective time of the merger, to the
full extent permitted under Delaware law or as provided in Concentra's or its
subsidiaries' organizational documents or any written indemnification
agreements. In addition, the surviving entity will maintain directors' and
officers' insurance coverage for six years after the effective time on terms no
less favorable to such indemnified parties than existing insurance coverage, but
the surviving corporation will not be required to pay an annual premium in
excess of 200% of the last premium paid prior to the date of the merger
agreement.

         AMENDMENT. The merger agreement may be amended, modified or
supplemented, only by written agreement of Yankee and Concentra at any time
prior to the effective time. However, after the required Concentra stockholder
approval, no term or condition contained in the merger agreement shall be
amended or modified in any manner that by law requires further approval by the
stockholders of Concentra without so obtaining such further stockholder
approval.

ANTICIPATED ACCOUNTING TREATMENT

         The merger will be accounted for as a recapitalization for accounting
and financial reporting purposes. Accordingly, the historical basis of
Concentra's assets and liabilities will not be affected by the merger. After the
recapitalization, Ferrer Freeman will own a 7% interest in Concentra. This
interest will be held in a separate class of common stock that is identical to
the original common stock of Concentra except it will have the ability to elect
a member of the Board of Concentra. Ferrer Freeman has no formal or informal
rights to approve or veto transactions. The rights granted to Ferrer Freeman are
protective rights rather than participating rights and as such Ferrer Freeman
and WCAS should not be construed as members of a collaborative group.

GOVERNMENTAL APPROVALS

         Transactions such as the merger are subject to review by the Department
of Justice and the Federal Trade Commission to determine whether they comply
with applicable antitrust laws. Under the provisions of the HSR Act, the merger
may not be consummated until such time as the specified waiting period
requirements of the HSR Act have been satisfied. Concentra filed a notification
report, together with a request for early termination of the waiting period,
with the Department of Justice and the Federal Trade Commission under the HSR
Act on April 22, 1999. The request for early termination of the waiting period
was granted by the Federal Trade Commission on May 5, 1999.

LITIGATION RELATING TO THE MERGER

         As of the date of this proxy statement, Concentra is aware of three
lawsuits that have been filed by alleged stockholders of Concentra relating to
the merger. All three lawsuits were filed in the Chancery Court for New Castle
County, Delaware. Each of the lawsuits names Concentra, its directors and Yankee
as defendants. The plaintiff in each lawsuit seeks to represent a purported
class of all public holders of Concentra common stock.

         The lawsuits allege, among other things, that the directors of
Concentra breached their fiduciary duties to Concentra's stockholders by
approving the merger. Specifically, the directors are alleged to have breached
their fiduciary duties of care and loyalty by failing to conduct an impartial
auction to determine the maximum value attainable for the common stock of
Concentra. The complaints allege that certain relationships between WCAS and
Concentra caused Concentra's directors to favor WCAS throughout the sale of
Concentra and to enter into a merger agreement that had the effect of capping
the price of Concentra's stock. The lawsuits seek, among other things,
preliminary and permanent injunctive relief prohibiting consummation of the
merger, unspecified damages, attorneys' fees and other relief. Concentra expects
that these three lawsuits will be consolidated into a single action. Concentra
intends to contest these lawsuits vigorously.

ESTIMATED FEES AND EXPENSES OF THE MERGER

         Estimated fees and expenses of the merger incurred or to be incurred by
Concentra are approximately as follows:


                                       44
<PAGE>


         Legal and accounting fees and other
                  transaction expenses .....................        $ 3,800,000
         Hart-Scott-Rodino filing fee ......................             45,000
         Exchange Agent fees and expenses ..................             25,000
         Proxy solicitation fees and expenses ..............             10,000
         Securities and Exchange Commission filing fee .....            158,501
         Printing and mailing costs ........................             50,000
         Miscellaneous expenses ............................             50,000
         DLJ's fee .........................................          5,000,000
         BT Alex. Brown's fee ..............................          7,700,000
         Underwriting of Senior Credit Facility ............         11,500,000
         Senior Subordinated Underwriting ..................          5,200,000
         Welsh Carson's fee ................................         10,500,000


                        RIGHTS OF DISSENTING STOCKHOLDERS

         You are entitled to appraisal rights under Section 262 of the Delaware
General Corporation Law (the "DGCL"). Section 262 of the DGCL is reprinted in
its entirety as Appendix C to this proxy statement. All references in Section
262 of DGCL and in this summary to a "stockholder" are to the record holder or
beneficial owner of shares of Concentra common stock as to which appraisal
rights are asserted. If you have a beneficial interest in shares of Concentra
common stock that are held of record in the name of another person, such as a
broker or nominee, you must act promptly to cause the record holder to properly
follow the steps summarized below in a timely manner to perfect whatever
appraisal rights you may have.

         The following discussion is not a complete statement of the law
relating to appraisal rights and is qualified in its entirety by reference to
Appendix C. IF YOU WISH TO EXERCISE STATUTORY APPRAISAL RIGHTS OR PRESERVE YOUR
RIGHT TO DO SO, YOU SHOULD REVIEW THIS DISCUSSION AND APPENDIX C CAREFULLY TO
COMPLY STRICTLY WITH THE PROCEDURES SET FORTH HEREIN AND THEREIN, OR YOU MAY
LOSE YOUR APPRAISAL RIGHTS.

         If you elect to demand the appraisal of your shares you must deliver to
Concentra a written demand for appraisal of your shares of Concentra common
stock before the taking of the vote on the merger at the special meeting. The
demand must reasonably inform Concentra of your identity and that you intend to
demand the appraisal of your shares of Concentra common stock. This written
demand for appraisal of the shares of Concentra common stock must be in addition
to and separate from your proxy or vote against the merger. Voting against,
abstaining from voting, or failing to vote on the merger will not constitute a
demand for appraisal within the meaning of Section 262. If you elect to demand
appraisal rights, you will not be granted appraisal rights under Section 262 if
you have either voted in favor of the merger or consented thereto in writing
(including by granting the proxy solicited by this proxy statement or by
returning a signed proxy without specifying a vote against the merger or a
direction to abstain from such vote). Additionally, appraisal rights will not be
granted under Section 262 if you do not continuously hold through the effective
time of the merger your shares of Concentra common stock with respect to which
you demand appraisal.

         You must fully and correctly execute a demand for appraisal as your
name appears on the certificate or certificates representing your shares of
Concentra common stock. If your shares of Concentra common stock are owned of
record in a fiduciary capacity, such as by a trustee, guardian or custodian, the
fiduciary must execute the demand. If the shares of Concentra common stock are
owned of record by more than one person, as in a joint tenancy or tenancy in
common, all joint owners must execute the demand. An authorized agent, including
an agent for two or more joint owners, may execute your demand for appraisal;
however, the agent must identify you as the record owner and expressly disclose
the fact that, in exercising the demand, such person is acting as your agent.

         If you elect to exercise your appraisal rights, you must mail or
deliver your written demand to the Secretary of Concentra at 5080 Spectrum
Drive, Suite 400, West Tower, Addison, Texas 75001. The written demand for
appraisal must specify your name and mailing address, the number of shares of
Concentra common stock you own, and that you are thereby demanding appraisal of
your shares. Within ten days after the effective time of the merger, Concentra
must provide notice of the effective time to all stockholders who have complied
with Section 262 and who have not voted for or consented to adoption of the
merger agreement.

         Within 120 days after the effective time, either Concentra or any
stockholder who has complied with the required conditions of Section 262 may
file a petition in the Delaware Court of Chancery (the "Delaware Chancery
Court") demanding a determination of the value of the shares of Concentra common
stock of the dissenting stockholders. If a petition for an appraisal is timely
filed, after a hearing on such petition, the Delaware Chancery


                                       45

<PAGE>

Court will determine which stockholders are entitled to appraisal rights and
will appraise the shares of Concentra common stock owned by such stockholders,
determining the fair value of such shares of Concentra common stock, exclusive
of any element of value arising from the accomplishment or expectation of the
merger, together with a fair rate of interest to be paid, if any, upon the
amount determined to be the fair value. In determining fair value, the Delaware
Chancery Court is to take into account all relevant factors including:
         o market value
         o asset value
         o dividends
         o earning prospects
         o the nature of Concentra's enterprise
         o the discounted cash flows of Concentra and
         o any other factors thatthe court deems relevant.

         The court is required to determine the amount necessary to compensate
the stockholder for the loss of his interest in Concentra as a going concern
rather than in a liquidation context.

         If you seek appraisal you should know that the "fair value" of your
shares of Concentra common stock determined under Section 262 could be more
than, the same as, or less than the merger consideration you will receive in the
merger, and that the opinion of BT Alex. Brown as to fairness, from a financial
point of view, is not an opinion as to fair value under Section 262. The cost of
the appraisal proceeding may be determined by the Delaware Chancery Court and
taxed against the parties as the Delaware Chancery Court deems equitable in the
circumstances. Upon application of a dissenting stockholder, the Delaware
Chancery Court may order that all or a portion of the expenses incurred by any
dissenting stockholder in connection with the appraisal proceeding, including,
without limitation, reasonable attorneys' fees and the fees and expenses of
experts, be charged pro rata against the value of all shares of Concentra common
stock entitled to appraisal.

         If you have duly demanded appraisal in compliance with Section 262, you
will not, from and after the effective time of the merger, be entitled to vote
for any purpose the shares of Concentra common stock subject to your demand or
to receive payment of dividends or other distributions on your shares of
Concentra common stock, except for dividends or distributions payable to
stockholders of record at a date prior to the effective time.

         At any time within 60 days after the effective time, you shall have the
right to withdraw your demand for appraisal and to accept the terms offered in
the merger. After this period, you may withdraw your demand for appraisal only
with the consent of Concentra. If no petition for appraisal is filed with the
Delaware Chancery Court within 120 days after the effective time, stockholders'
rights to appraisal shall cease, and all holders of shares of Concentra common
stock shall be entitled to receive the merger consideration as provided for in
the merger agreement. Inasmuch as Concentra has no obligation to file such a
petition, and has no present intention to do so, any stockholder who desires
such a petition to be filed is advised to file it on a timely basis. However, no
petition timely filed in the Delaware Chancery Court demanding appraisal shall
be dismissed as to any stockholder without the approval of the Delaware Chancery
Court, and such approval may be conditioned upon such terms as the Delaware
Chancery Court deems just.





                                       46

<PAGE>
                  PRINCIPAL STOCKHOLDERS AND STOCK OWNERSHIP OF
                              MANAGEMENT AND OTHERS

         The following table sets forth certain information with respect to the
beneficial ownership of the Concentra common stock as of June 4, 1999 by: (i)
each person known to Concentra to beneficially own more than 5% of any class of
Concentra's outstanding voting securities, (ii) each director of Concentra,
(iii) the chief executive officer and the four other most highly compensated
executive officers of Concentra and Mr. Kiraly and (iv) all executive officers
and directors of Concentra as a group. Unless otherwise indicated, Concentra
believes that each person or entity named below has sole voting and investment
power with respect to all shares shown as beneficially owned by such person or
entity, subject to community property laws where applicable and the information
set forth in the footnotes to the table below.

<TABLE>
<CAPTION>
                                                                                          SHARES
                                                                                        BENEFICIALLY       PERCENTAGE
                  NAMES                              SHARES             OPTIONS           OWNED (1)         OF CLASS
                  -----                              ------             -------         ------------       ----------
<S>                                                 <C>                 <C>              <C>                 <C>
Welsh, Carson, Anderson & Stowe
and affiliates
320 Park Avenue
New York, NY  10022 ..........................      6,299,763           836,364          7,136,127           14.9%

Massachusetts Financial Services
  Company
500 Boylston
Boston, MA  02116 ............................      5,852,888           672,785          6,525,673           13.7%

DIRECTORS
John K. Carlyle ..............................            510            75,000             75,510            0.2%
George H. Conrades ...........................          1,326            51,971             53,297            0.1%
Hon. Willis D. Gradison, Jr. .................          1,510             5,000              6,510            0.0%
Robert A. Ortenzio ...........................         15,188            25,000             40,188            0.1%
Mitchell T. Rabkin, M.D. .....................          1,326            51,971             53,297            0.1%
Richard D. Rehm, M.D. ........................         10,000            38,750             48,750            0.1%
Lois E. Silverman ............................        641,512            10,000            651,512            1.4%

EXECUTIVE OFFICERS

Daniel J. Thomas .............................         33,367           389,000            422,367            0.9%
James M. Greenwood ...........................         33,000           123,000            156,000            0.3%
Richard A. Parr II ...........................         17,773            62,750             80,523            0.2%
Joseph F. Pesce ..............................         40,411           179,803            220,214            0.5%
W. Tom Fogarty, M.D. .........................         99,389           103,800            203,189            0.4%
Kenneth Loffredo .............................          1,158           101,250             38,126            0.1%
Thomas E. Kiraly .............................              0                 0                  0              0%

All directors and executive officers as
  a group (14 persons) .......................        921,859         1,180,338          2,102,197            4.3%
</TABLE>

- --------------------
(1)   A person is considered to beneficially own any shares (a) over which
such person exercises sole or shared voting or investment power or (b) of which
such person has the right to acquire beneficial ownership at any time within 60
days of June 4, 1999 (i.e. through the conversion of securities or the exercise
of stock options). Shares are deemed to be outstanding for the purposes of
computing the percentage ownership of the person holding such shares, but are
not deemed outstanding for purposes of computing the percentage of any other
person shown on the table.


                                       47
<PAGE>

                    CERTAIN INFORMATION CONCERNING CONCENTRA

         Concentra is the leading provider of healthcare management and cost
containment services to the workers' compensation, disability and auto insurance
markets. Concentra also provides out-of-network medical claims review to the
group health marketplace and performs non-injury healthcare services for over
80,000 local employers. Concentra offers a continuum of services to employers,
insurers and third-party administrators of all sizes on a non-risk-bearing
basis. Concentra's services allow customers to increase the direction of care
for injury claims, aggressively manage the costs and care plan of those claims,
and review medical claims retrospectively, thus reducing overall workers'
compensation, disability, auto-insurance, and out-of-network group health costs.
Concentra believes that by offering both claims management services and the
provision of care, Concentra is in a unique position to provide comprehensive,
integrated services on a bundled or unbundled basis to national and regional
accounts and local employers.

         Concentra's continuum of services is comprised of three distinct
categories: healthcare services; specialized cost containment services; and
field case management. Concentra's field case management organization consists
of over 1,100 full-time field case managers in 89 offices in 49 states.
Concentra's specialized cost containment services, including provider bill
review, preferred provider network management, out-of-network medical claims
review services, first-report-of-injury, telephonic case management,
precertification, and independent medical examinations, are provided in 85
service locations in 49 states. Healthcare services include injury care and
physical therapy services for work-related injuries and illnesses, physical
examinations, substance abuse testing, and certain other loss-prevention
services, and are provided through 169 clinics located in 50 markets in 25
states. Through the twelve months ended December 31, 1998, revenues from
healthcare services, specialized cost-containment services and field case
management represented approximately 43.0%, 29.8% and 27.2% of total revenues,
respectively.

         JOHN K. CARLYLE has served as a Director of Concentra since August
1997. Mr. Carlyle served as Chairman of the Board of Directors of Concentra
from August 1997 to January 1998. Mr. Carlyle is currently President and CEO of
MAGELLA Healthcare Corporation, a private physician practice management company
devoted to the area of neonatology and perinatology. Mr. Carlyle served as
OccuSystems' Chairman and Chief Executive Officer from January 1997 until August
1997. He joined OccuSystems in 1990 as its President and served in that capacity
until December 1996. Mr. Carlyle served as the Chief Executive Officer and a
director of OccuSystems from 1991 until August 1997. Mr. Carlyle has served as a
director of National Surgery Centers, Inc., an owner and operator of free
standing, multi-specialty ambulatory surgery centers, since 1991. He also serves
as a director of several private companies.

         W. TOM FOGARTY, M.D. has served as Senior Vice President and Chief
Medical Officer of Concentra since August 1997. He served as OccuSystems'
Senior Vice President and Chief Medical Officer from September 1995 to August
1997. From 1993 to September 1995, Dr. Fogarty served as Vice President and
Medical Director of OccuSystems. From 1992 to 1993, he served as a Regional
Medical Director of Occu-Systems and, from 1985 until 1992, as a medical
director of one of OccuSystems' centers.

         JAMES M. GREENWOOD has served as Executive Vice President of Corporate
Development since February 1998 and as Senior Vice President of Corporate
Development of Concentra from August 1997 to February 1998. He served as
OccuSystems' Chief Financial Officer from 1993 when he joined OccuSystems as a
Vice President until August 1997. Mr. Greenwood served as a Senior Vice
President of OccuSystems since May 1994. From 1988 until he joined OccuSystems
in 1993, Mr. Greenwood served in numerous positions with Bank One, Texas, N.A.,
and its predecessors, most recently as Senior Vice President and Manager of
Mergers and Acquisitions.

         THOMAS E. KIRALY has served as Executive Vice President, Chief
Financial Officer and Treasurer of Concentra since May 25, 1999. Prior to that
time, Mr. Kiraly served as the principal accounting and financial officer of BRC
Holdings, Inc. from December 1988 to May 1999. BRC Holdings, Inc., based in
Dallas, Texas, was a diversified provider of specialized information systems and
services to health care institutions and local governments and was acquired in
February 1999 by Affiliated Computer Services, Inc., another Dallas, Texas based
provider of information services. During his tenure at BRC Holdings, Inc., Mr.
Kiraly held the titles of Executive Vice President and Chief Financial Officer
from March 1994 through May 1999 and Vice President of Finance from December
1988 through March 1994. Prior to that time, Mr. Kiraly was a Senior Management
Consultant with Touche Ross & Co., a predecessor to Deloitte & Touche L.L.P., a
national accounting firm, from May 1985 until December 1988.

         KENNETH LOFFREDO has served as Senior Vice President of Marketing and
Sales since August 1997. Mr. Loffredo served as Vice President of Sales of CRA
from February 1995 to August 1997. From July 1993 to January 1995 he was CRA's
Regional Sales Manager for the New England states. Mr. Loffredo joined CRA in
July of 1981, and from 1981 to June 1993, he held positions of Case Manager,
Account Manager and Regional Manager.


                                       48
<PAGE>

         RICHARD A. PARR II has served as Executive Vice President, General
Counsel and Secretary of Concentra since August 1997. He served as
OccuSystems' Executive Vice President, General Counsel and Secretary from August
1996 to August 1997. Prior to joining OccuSystems, Mr. Parr served as Vice
President and Assistant General Counsel of OrNda HealthCorp, a national hospital
management company, from April 1993 through August 1996 and as Associate General
Counsel of OrNda HealthCorp from September 1991 through March 1993.

         DANIEL J. THOMAS has served as a Director of Concentra since January
1998. He has served as President and Chief Executive Officer since September
1998, and he served as President and Chief Operating Officer of Concentra from
January 1998 until September 1998. He served as Executive Vice President and
President of the Practice Management Services subsidiary of Concentra from
August 1997 until January 1998. He served as a director of OccuSystems and as
its President and Chief Operating Officer from January 1997 to August 1997. From
April 1993 through December 1996, Mr. Thomas served as OccuSystems' Executive
Vice President and Chief Operating Officer. Prior to joining OccuSystems in
1993, Mr. Thomas served in various capacities with Medical Care International,
Inc., most recently as its Senior Vice President and Divisional Director. Mr.
Thomas is a certified public accountant.

         All of the individuals listed above are United States citizens and,
with the exception of Messrs. Greenwood and Parr, have their business address at
312 Union Wharf, Boston, Massachusetts 02109. Messrs. Greenwood and Parr have
their business address at 5080 Spectrum Drive, Suite 400, West Tower, Addison,
Texas 75001.

         None of Concentra, the Members of Management or any executive officer,
director or person controlling Concentra was, during the last five years
convicted in a criminal proceeding (excluding traffic violations or similar
misdemeanors) or was a party to a civil proceeding of a judicial or
administrative body of competent jurisdiction and as a result of such proceeding
was or is subject to a judgment, decree or final order enjoining future
violations of, or prohibiting activities subject to, federal or state securities
laws or finding any violation of such laws.

         For a more detailed description of the business and properties of
Concentra, see the descriptions thereof contained in Concentra's Annual Report
on Form 10-K for the fiscal year ended December 31, 1998, which is incorporated
herein by reference. See "Where You Can Find More Information."

                      CERTAIN INFORMATION CONCERNING YANKEE

YANKEE

         Yankee is a newly formed Delaware corporation organized and currently
owned by Welsh, Carson, Anderson & Stowe VIII, L.P. ("WCAS") for the purpose of
effecting the merger. The principle executive offices of Yankee are located at
320 Park Avenue, New York, New York 10022. The current directors of Yankee are
D. Scott Mackesy, Andrew M. Paul and Paul B. Queally. The current officers of
Yankee are D. Scott Mackesey, Andrew M. Paul and Paul B. Queally. Health Care
Partners L.P. and Health Care Executive Partners L.P., affiliates of Ferrer
Freeman Thompson & Co., LLC, have agreed to purchase about 7% of Yankee's
capital stock prior to the merger. Health Care Capital Partners may assign its
rights to purchase that capital stock to affiliates, members or partners of
Ferrer Freeman Thompson & Co., LLC.

EQUITY INVESTORS

         WCAS

         WCAS is a private investment firm based in New York and founded in
1979. WCAS currently manages over $7 billion in private equity capital and
focuses primarily on the healthcare and information services industries. Since
1979, WCAS has completed over eighty leveraged buyouts concentrated in these
industries. The principal executive offices of WCAS are located at 320 Park
Avenue, New York, New York 10022 and its telephone number is (212) 893-4500. The
sole general partner of WCAS is WCAS VIII Associates LLC, a Delaware limited
liability company ("WCAS VIII Associates").

         WCAS VIII ASSOCIATES

         The principal business of WCAS VIII Associates is acting as the sole
general partner of WCAS. Each managing member of WCAS VIII Associates is a
citizen of the United States. The principal occupation of each managing member
of WCAS VIII Associates is being a general partner or managing member of the
partnerships


                                       49

<PAGE>

and limited liability companies which serve as the sole general partners of the
private investment partnerships which are affiliated with WCAS. The managing
members of WCAS VIII Associates are Bruce K. Anderson, Russell L. Carson,
Priscilla A. Newman, Anthony J. de Nicola, Thomas E. McInerney, Andrew M. Paul,
Paul B. Queally, Jonathan M. Rather, Lawrence B. Sorrell, Laura M. Van Buren,
and Patrick J. Welsh.

         FERRER FREEMAN

         Ferrer Freeman is a private investment firm based in Connecticut.
Ferrer Freeman manages two private equity funds, Health Care Capital Partners
and Health Care Executive Partners, which are dedicated to making investments in
the health care industry. The principal offices of Ferrer Freeman are located at
The Mill, 10 Glenville Street, Greenwich, Connecticut 06831 and its telephone
number is (203) 532-8011.

         In connection with its investment in Yankee, Ferrer Freeman has entered
into a subscription agreement to purchase 1,854,545 shares of Yankee's Class A
common stock immediately prior to the merger, representing approximately 7% of
Yankee's outstanding capital stock. The Class A common stock of Yankee is
identical in all respects to Yankee's common stock except that the Class A
common stock is entitled to elect one member to Yankee's board of directors. The
merger agreement provides that, at the effective time of the merger, shares of
Yankee's Class A common stock will be converted into an equal number of shares
of Class A common stock of Concentra with the same rights as Yankee's Class A
common stock prior to the merger.

         In connection with its investment in Yankee, WCAS has agreed to
purchase 23,744,163 shares of Yankee's common stock immediately prior to the
merger, representing approximately 93% of Yankee's outstanding capital stock.
The Members of Management have agreed to purchase a portion of these shares.
WCAS and the Members of Management intend to enter into a definitive purchase
agreement similar to the one executed by Ferrer Freeman to purchase these
shares. The merger agreement provides that, at the effective time of the merger,
shares of Yankee's common stock will be converted into an equal number of shares
of Concentra common stock with the same rights as Yankee's common stock prior to
the merger.

         At the same time WCAS intends to enter into its subscription agreement,
WCAS, the Members of Management, Ferrer Freeman and Concentra intend to enter
into a stockholders agreement. The stockholders agreement will not provide for
any agreements with WCAS, the Members of Management and Ferrer Freeman with
respect to voting of shares or management of Concentra following the merger. The
stockholders agreement will provide for:

              o    limitations on the transfer of shares owned by the investors,

              o    tag along rights for Ferrer Freeman, the Members of
                   Management and affiliates of WCAS other than WCAS, to
                   participate in proposed dispositions of Concentra common
                   stock by WCAS,

              o    in the event that WCAS receives a third party offer to
                   purchase a significant portion of the outstanding Concentra
                   common stock, WCAS may require the other investors to accept
                   the offer and sell their shares of Concentra to the third
                   party, and

              o    preemptive rights to the investors to participate, on a pro
                   rata basis according to their ownership of Concentra capital
                   stock, in equity offerings of Concentra with certain
                   customary exceptions.

         Simultaneously with the execution of the stockholders agreement, WCAS,
the Members of Management, Ferrer Freeman and Concentra intend to enter into a
registration rights agreement. The registration rights agreement will give the
investors rights to require Concentra to register their shares of Concentra
capital stock under the Securities Act of 1933 and to include, upon request,
their shares in any other registration of shares by Concentra.

         None of WCAS, WCAS VIII Associates or any executive officer, director
or person controlling any member of WCAS or WCAS VIII Associates was, during the
last five years, convicted in a criminal proceeding (excluding traffic
violations or similar misdemeanors) or was a party to a civil proceeding of a
judicial or


                                       50
<PAGE>
administrative body of competent jurisdiction and as a result of such proceeding
was or is subject to a judgment, decree or final order enjoining future
violations of, or prohibiting activities subject to, federal or state securities
laws or finding any violation of such laws. Each person listed below is a
citizen of the United States unless noted otherwise.

         The business address of each managing member of WCAS VIII Associates is
320 Park Avenue, New York, New York 10022.

         Except as disclosed below, over the last five years the only material
occupation, position, offices or employments for each managing member of WCAS
VIII Associates has only been as a general partner or managing member of the
partnerships and limited liability companies which serve as the sole general
partners of the private investment partnerships which are affiliated with WCAS.

         D. Scott Mackesy is a citizen of Canada and his principal occupation is
as an employee of WCAS Management Corporation, an affiliate of WCAS. Mr.
Mackesy's business address is 320 Park Avenue, Suite 2500, New York, New York
10022-6815. Prior to joining WCAS in 1998, Mr. Mackesy was employed from 1992 to
1998 by Morgan Stanley Dean Winter & Co., most recently as a Vice President in
its investment research department. The address of Morgan Stanley Dean Winter &
Co. is 1585 Broadway, New York, New York 10036.

         Prior to joining WCAS in 1994, Mr. de Nicola was employed from 1990 to
1994 by William Blair & Company, a private equity investment firm. The address
of William Blair & Company, L.L.C. is 222 West Adams Street, Chicago, Illinois
60606.

         Prior to joining WCAS in February 1996, Mr. Queally held various
positions, including, most recently, General Partner, at The Sprout Group,
Donaldson, Lufkin & Jenrette Inc.'s private equity group from May 1987 to
February 1996. The address of Donaldson, Lufkin & Jenrette, Inc. is 277 Park
Avenue, New York, New York 10172. Prior to joining WCAS in May 1999, Jonathan M.
Rather was employed as Chief Operating Officer and Chief Financial Officer of
Goelet Corporation. The address of Goelet Corporation is 425 Park Avenue, 28th
Floor, New York, New York 10022.

         Prior to joining WCAS in May 1999, Jonathan M. Rather was employed as
Chief Operating Officer and Chief Financial Officer of Goelet Corporation. The
address of Goelet Corporation is 425 Park Avenue, 28th Floor, New York, New York
10022.

         Prior to joining WCAS in June 1998, Mr. Sorrel was employed as a senior
executive at Morgan Stanley Dean Winter & Co. working in its private equity
investment business, most recently, as a Managing Director. Mr. Sorrell joined
Morgan Stanley & Co. in 1986. The address of Morgan Stanley Dean Winter & Co. is
1585 Broadway, New York, New York 10036.

         Sean M. Traynor's principal occupation is as an employee of WCA
Management Corporation, an affiliate of WCAS. Mr. Traynor's business address is
320 Park Avenue, Suite 2500, New York, New York 10022-6815. Prior to joining
WCAS in April 1999, Mr. Traynor was employed from 1996 to April 1999 by BT Alex.
Brown Incorporated, as an Associate in its investment banking division. The
address of BT Alex. Brown Incorporated is One South Street, Baltimore, Maryland
21202. From June to August 1995, Mr. Traynor was employed by The Chase Manhattan
Bank, as an Associate in its corporate finance department. The address of The
Chase Manhattan Bank is 270 Park Avenue, New York, New York 10017.

                  PURCHASES OF COMMON STOCK BY CERTAIN PERSONS

<TABLE>
<CAPTION>
                                             NUMBER OF                     NUMBER OF
                                              SHARES                      CONVERTIBLE              PRICE PAID
PARTY             DATE                       PURCHASED                   NOTES PURCHASED        PER SHARE OR NOTE
- -----             ----                       ---------                   ---------------        -----------------
<S>              <C>                          <C>                                                     <C>
WCAS             9/08/98                      250,000                                                 $6.10
</TABLE>


                                       51
<PAGE>
<TABLE>
<CAPTION>
                                             NUMBER OF                     NUMBER OF
                                              SHARES                      CONVERTIBLE              PRICE PAID
PARTY             DATE                       PURCHASED                   NOTES PURCHASED        PER SHARE OR NOTE
- -----             ----                       ---------                   ---------------        -----------------
<S>              <C>                          <C>                              <C>        <C>
                 9/09/98                      625,000                                                 $6.73
                 9/10/98                      625,000                                                 $7.02
                 9/11/98                      624,763                                                 $7.66
                 11/18/98                      50,000                                                $10.44
                 11/19/98                      30,000                                                $10.50
                 11/20/98                      40,000                                                $10.69
                 11/23/98                                                      1,000                 $76.25
                 11/25/98                                                      1,000                 $78.00
                 12/01/98                                                      2,000                 $79.00
                 12/03/98                                                      3,000                 $78.50
                 12/04/98                                                      1,000                 $79.00
                 1/05/99                       65,000                                                $10.12
                 1/06/99                       40,000                          2,000            $10.50 per Share;
                                                                                                 $78.50 per Note
                 1/07/99                      175,000                          1,000            $10.33 per Share;
                                                                                                 $79.00 per Note
                 1/08/99                      475,000                                                $10.49
                 1/11/99                      225,000                          2,000            $10.84 per Share;
                                                                                                $78.50 per Note
                 1/12/99                    1,300,000                                                $10.73
Carlyle          11/97                        227,200(9)
                 5/98                             510(2)
                                               80,000(3)
Conrades         9/97                             459(1)
                 5/98                             510(2)
Gradison         5/98                             510(2)
Ortenzio         9/97                             451(1)
                 5/98                             510(2)
Rabkin           9/97                             459(1)
                 5/98                             510(2)
Silverman        9/97                             459(1)
                 5/98                             510(2)
Greenwood        11/97                         62,500(8)
                 5/98                          15,000(2)
Loffredo         11/97                         15,000(4)
                 1/98                             176(5)
                 6/98                             452(6)
Parr             11/97                          6,000(4)
                 1/98                             476(5)
                 6/98                             312(6)
                 8/98                           1,000(7)
                 1/99                            761(10)
Pesce            11/97                         24,000(4)
                 1/98                             472(5)
                 5/98                           9,000(2)
                 6/98                             657(6)
                 1/99                          1,583(10)
Thomas           5/98                           9,000(2)
</TABLE>
FOOTNOTES  1 - Restricted Shares Granted 9/1/97 at $32.75
           2 - Restricted Shares Granted 5/13/98 at $29.4375
           3 - Acquired Through Exercise Of 50,000 Options at $19.50 And 30,000
               Restricted Shares at $0
           4 - Restricted Shares Granted 11/1/97 at $32.625
           5 - Shares Purchased Through Employee Stock Purchase Plan at $24.86
           6 - Shares Purchased Through Employee Stock Purchase Plan at $22.10
           7 - Shares Purchased Through Open Market at $19.00
           8 - Shares Acquired Through Exercise of Stock Options As Follows:
               5,000 on 11/4/97 at $4.00, 7,500 on 11/4/97 at $6.00, 15,000 on
               11/4/97 at $7.00, 12,500 on 11/4/97 at $12.00, 7,500 on 11/14/97
               at $12.00, 4,000 on 11/14/97 at $19.50, 5,000 on 11/25/97 at
               $19.50, 31,000 on 11/26/97 at $19.50
           9 - Shares Acquired Through Exercise of Stock Option As Follows:
               37,200 on 11/5/97 at $4.00, 60,000 on 11/5/97 at $12.00, 40,000
               on 11//6/97 at $7.00, 15,000 on 11/7/97 at $7.00, 25,000 on
               11/18/97 at $7.00, 10,000 on 11/21/97 at $19.50
          10 - Shares Purchased Through Employee Stock Purchase Plan on January
               1, 1999 at $9.0843

INDEPENDENT AUDITORS

         The consolidated balance sheets of Concentra as of December 31, 1997
and December 31, 1998, and the related consolidated statements of operation,
stockholders' equity and cash flows for each of the three years in the period
ended December 31, 1998, incorporated by reference in this proxy statement have
been audited by Arthur Andersen L.L.P., independent auditors, as stated in their
report. A representative of Arthur Andersen L.L.P. will be at the special
meeting to answer appropriate questions from stockholders and will have the
opportunity to make a statement if so desired.

STOCKHOLDER PROPOSALS

         Any proposals of holders of Concentra common stock intended to be
presented at the annual meeting of stockholders of Concentra to be held in 1999
must have been received by Concentra no later than December 1, 1998, to be
included in Concentra's proxy statement and form of proxy relating to that
meeting.

OTHER MATTERS

         As of the date of this proxy statement, the Board knows of no other
business to be presented at the special meeting. If other matters do properly
come before the meeting, or any adjournments or postponements thereof, it is the
intention of the persons named in the proxy to vote on such matters in their
sole discretion.

WHERE YOU CAN FIND MORE INFORMATION

         Concentra files annual, quarterly and current reports, proxy statements
and other information with the SEC. You may read and copy any reports,
statements or other information that Concentra files at the SEC's public
reference rooms in Washington, D.C., New York, New York and Chicago, Illinois.
Please call the SEC at 1-800-SEC-0330 for further information on the public
reference rooms. Concentra public filings are also available to the public from
commercial document retrieval services and at the Internet World Wide Web site
maintained by the SEC at http://www.sec.gov. Reports, proxy statements and other
information concerning Concentra also may be inspected at the offices of the
National Association of Securities Dealers, Inc., 1735 K Street, N.W.,
Washington, D.C. 20006.

         The SEC allows Concentra to "incorporate by reference" information into
this document, which means that Concentra can disclose important information to
you by referring you to another document filed separately with the

                                       52
<PAGE>

SEC. The information incorporated by reference is deemed to be a part of this
document, except for any information superseded by information contained
directly in this document. This document incorporates by reference certain
documents that Concentra has previously filed with the SEC. These documents
contain important business information about Concentra and its financial
condition.

         Concentra may have sent to you some of the documents incorporated by
reference, but you can obtain any of them through Concentra, the SEC or the
SEC's Internet World Wide Web site described above. Documents incorporated by
reference are available from Concentra without charge, excluding exhibits unless
specifically incorporated by reference as an exhibit to this document.
Stockholders may obtain documents incorporated by reference in this document by
requesting them in writing or by telephone at the following address and
telephone number:

                          CONCENTRA MANAGED CARE, INC.
                   5080 Spectrum Drive, Suite 400, West Tower
                              Addison, Texas 75001
                                  972/364-8043
                 Attention: Richard A. Parr II, General Counsel

         Statements contained in this proxy statement or in any document
incorporated herein by reference as to the contents of any contract or other
document referred to herein or therein are not necessarily complete and in each
instance reference is made to such contract or other document filed as an
exhibit to such other document, and each such statement shall be deemed
qualified in its entirety by such reference.

         IF YOU WOULD LIKE TO REQUEST DOCUMENTS FROM CONCENTRA, PLEASE DO SO AT
LEAST FIVE BUSINESS DAYS BEFORE THE DATE OF THE SPECIAL MEETING IN ORDER TO
RECEIVE TIMELY DELIVERY OF SUCH DOCUMENTS PRIOR TO THE SPECIAL MEETING.

         You should rely only on the information contained or incorporated by
reference in this document to vote your shares at the special meeting. Concentra
has not authorized anyone to provide you with information that is different from
what is contained in this document. This document is dated ______________, 1999.
You should not assume that the information contained in this document is
accurate as of any date other than that date, and the mailing of this document
to stockholders does not create any implication to the contrary. This proxy
statement does not constitute a solicitation of a proxy in any jurisdiction
where, or to or from any person to whom, it is unlawful to make such proxy
solicitation in such jurisdiction.

                 INCORPORATION OF CERTAIN DOCUMENTS BY REFERENCE

         The following documents previously filed with the SEC by Concentra are
incorporated by reference in this proxy statement:

         (i) Concentra's Annual Report on Form 10-K for the fiscal year ended
December 31, 1998; and

         (ii) Concentra's Current Reports on Form 8-K filed on February 4, 1999,
March 3, 1999, March 29, 1999 and April 28,1999.

         (iii) Concentra's Quarterly Report on Form 10-Q for the quarter ended
March 31, 1999.

         All documents field by Concentra with the SEC pursuant to Sections
13(a), 13(c), 14 and 15(d) of the Securities Exchange Act of 1934 after the date
hereof and prior to the date of the special meeting shall be deemed to be
incorporated by reference herein and shall be a part hereof from the date of
filing of such documents. Any statements contained in a document incorporated by
reference herein or contained in this proxy statement shall be deemed to be
modified or superseded for purposes hereof to the extent that a statement
contained herein (or in any other subsequently filed document which also is
incorporated by reference herein) modifies or supersedes such statement. Any
statement so modified or superseded shall not be deemed to constitute a part
hereof except as so modified or superseded.





                                       53

<PAGE>
                                                                      APPENDIX A




                              AMENDED AND RESTATED

                          AGREEMENT AND PLAN OF MERGER

                                 BY AND BETWEEN



                            YANKEE ACQUISITION CORP.,

                                       AND

                          CONCENTRA MANAGED CARE, INC.





                           DATED AS OF MARCH 24, 1999


<PAGE>
                                TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                                                               Page
<S>      <C>      <C>                                                                                             <C>
ARTICLE 1  THE MERGER

         1.1      The Merger......................................................................................2
         1.2      Closing.........................................................................................2
         1.3      Effective Time of the Merger....................................................................2
         1.4      Effects of the Merger...........................................................................2

ARTICLE 2  EFFECT OF THE MERGER ON THE CAPITAL STOCKOF THE CONSTITUENT CORPORATIONS

         2.1      Effect on Capital Stock.........................................................................3
         2.2      Exchange of Certificates........................................................................4
         2.3      Stock Plans.....................................................................................6

ARTICLE 3  REPRESENTATIONS AND WARRANTIES

         3.1      Representations and Warranties of the Company...................................................6
         3.2      Representations and Warranties of Newco........................................................20

ARTICLE 4  COVENANTS RELATING TO CONDUCT OF BUSINESS

         4.1      Affirmative Covenants of the Company...........................................................23
         4.2      Negative Covenants of the Company..............................................................23

ARTICLE 5  ADDITIONAL AGREEMENTS

         5.1      Access to Information..........................................................................26
         5.2      No Solicitation................................................................................26
         5.3      Fees and Expenses..............................................................................27
         5.4      Brokers or Finders.............................................................................28
         5.5      Indemnification; Directors'and Officers'Insurance..............................................28
         5.6      Reasonable Efforts.............................................................................30
         5.7      Publicity......................................................................................31
         5.8      HSR and Other Governmental Approvals...........................................................31
         5.9      Notification of Certain Matters................................................................32
         5.10     Continuation of Employee Benefits..............................................................32
         5.11     Preparation of the Proxy Statement; Stockholders Meeting.......................................33
         5.12     Solvency Letter................................................................................33
         5.13     Recapitalization...............................................................................34
         5.14     Other Actions..................................................................................34
</TABLE>



                                       i
<PAGE>
<TABLE>
<CAPTION>
                                                                                                               Page
<S>      <C>      <C>                                                                                             <C>
ARTICLE 6  CONDITIONS PRECEDENT

         6.1      Conditions to Each Party's Obligation to Effect the Merger.....................................34
         6.2      Conditions to Obligations of Newco.............................................................35
         6.3      Conditions to Obligation of the Company........................................................35

ARTICLE 7  TERMINATION AND AMENDMENT

         7.1      Termination....................................................................................36
         7.2      Effect of Termination..........................................................................37
         7.3      Amendment......................................................................................37
         7.4      Extension; Waiver..............................................................................38

ARTICLE 8  GENERAL PROVISIONS

         8.1      Nonsurvival of Covenants and Agreements........................................................38
         8.2      Confidentiality Agreements.....................................................................38
         8.3      Notices........................................................................................38
         8.4      Interpretation.................................................................................40
         8.5      Counterparts...................................................................................40
         8.6      Entire Agreement; No Third Party Beneficiaries.................................................40
         8.7      Governing Law..................................................................................40
         8.8      Assignment.....................................................................................40
         8.9      Effectiveness..................................................................................41
         8.10     Reference; No Waiver...........................................................................41
</TABLE>




                                       ii
<PAGE>
SCHEDULES

<TABLE>
<CAPTION>
<S>      <C>                        <C>
Schedule 2.3              --        Stock Plans
Schedule 3.1(a)           --        Company Subsidiaries
Schedule 3.1(b)(i)        --        Company Capital Structure
Schedule 3.1(b)(ii)       --        Registration Rights Agreement and Voting Agreements
Schedule 3.1(b)(iii)      --        Company Subsidiary Capital Structure
Schedule 3.1(c)(ii)       --        Company Violations; Consents and Approvals
Schedule 3.1(c)(iii)      --        Required Filings and Consents
Schedule 3.1(f)           --        Company Defaults
Schedule 3.1(h)           --        Company Litigation
Schedule 3.1(i)           --        Company Taxes
Schedule 3.1(j)(i)        --        Company Employment Agreements
Schedule 3.1(j)(ii)       --        Company Plans
Schedule 3.1(j)(iv)       --        Company Determination Letters
Schedule 3.1(j)(v)        --        Plan Operation and Administration
Schedule 3.1(j)(xiii)     --        Other Employee Benefits
Schedule 3.1(j)(xiv)      --        Certain Consequences of Consummation of Transaction
Schedule 3.1(k)           --        Absence of Certain Changes or Events
Schedule 3.1(q)           --        Company Intellectual Property
Schedule 3.1(r)           --        Company Insurance Matters
Schedule 4.2(d)           --        Approved Acquisitions
Schedule 5.4(b)           --        Newco Brokers and Finders
Schedule 5.5(e)           --        Company Indemnification Agreements
Schedule 5.10             --        Continuation of Employee Benefits
</TABLE>


<PAGE>
                              AMENDED AND RESTATED

                          AGREEMENT AND PLAN OF MERGER

         THIS AMENDED AND RESTATED AGREEMENT AND PLAN OF MERGER, dated as of
March 24, 1999 (this "Agreement"), is made and entered into by and between
YANKEE ACQUISITION CORP., a Delaware corporation ("Newco"), and CONCENTRA
MANAGED CARE, INC., a Delaware corporation (the "Company").

                                    RECITALS

         WHEREAS, Newco and the Company have entered into that certain Agreement
and Plan of Merger dated as of March 2, 1999 (the "Original Merger Agreement");

         WHEREAS, subsequent to the date of the Original Merger Agreement, Newco
and the Company have each determined that it is in the best interests of each of
the foregoing entities and their respective stockholders to enter into this
Agreement, which amends and restates the Original Merger Agreement;

         WHEREAS, the Board of Directors of each of Newco and the Company (in
the case of the Company acting through a special committee (the "Special
Committee") formed for the purposes of representing the Company in connection
with the transactions contemplated hereby) has unanimously deemed it advisable
and in the best interests of their respective stockholders for Newco to merge
with and into the Company (the "Merger") pursuant to Section 251 of the Delaware
General Corporation Law (the "DGCL") upon the terms and subject to the
conditions set forth herein;

         WHEREAS, the Board of Directors of each of Newco and the Company has
unanimously adopted resolutions approving and declaring advisable this Agreement
and the Merger;

         WHEREAS, Newco and the Company desire to make certain representations,
warranties, covenants and agreements in connection with the Merger and also to
prescribe various conditions to the Merger; and

         WHEREAS, it is intended that the Merger be recorded as a
recapitalization for financial reporting purposes.

<PAGE>
                                    AGREEMENT

         NOW, THEREFORE, in consideration of the foregoing and the
representations, warranties, covenants and agreements herein contained, the
parties hereto, intending to be legally bound, hereby agree as follows:



                                    ARTICLE 1

                                   THE MERGER

         1.1      THE MERGER. Upon the terms and subject to the conditions set
forth in this Agreement, and in accordance with the DGCL, Newco shall be merged
with and into the Company at the Effective Time (as hereinafter defined). At the
Effective Time, the separate corporate existence of Newco shall cease, and the
Company shall continue as the surviving corporation under the name "Concentra
Managed Care, Inc." Newco and the Company are sometimes hereinafter referred to
as the "Constituent Corporations" and, as the context requires, the Company is
sometimes hereinafter referred to as the "Surviving Corporation."

         1.2      CLOSING. Unless this Agreement shall have been terminated and
the transactions herein contemplated shall have been abandoned pursuant to
Section 7.1, and subject to the satisfaction or waiver of the conditions set
forth in Article 6, the closing of the Merger (the "Closing") shall take place
at 10:00 a.m. on a date to be specified by the parties hereto, as promptly as
practical (but in no event later than the second business day) after
satisfaction and/or waiver of all of the conditions set forth in Article 6 (the
"Closing Date"), at the offices of Reboul, MacMurray, Hewitt, Maynard & Kristol,
45 Rockefeller Plaza, New York, New York 10111, unless another date, time or
place is agreed to in writing by the parties hereto.

         1.3      EFFECTIVE TIME OF THE MERGER. Subject to the provisions of
this Agreement, the parties hereto shall cause the Merger to be consummated by
filing a certificate of merger (the "Certificate of Merger") with the Secretary
of State of the State of Delaware, as provided in the DGCL, as soon as
practicable after the Closing. The Merger shall become effective upon such
filing or at such time thereafter as is provided in the Certificate of Merger as
the Company and Newco shall agree (the "Effective Time").

         1.4      EFFECTS OF THE MERGER.

                  (a) The Merger shall have the effects as set forth in the
applicable provisions of the DGCL.

                  (b) The directors of Newco and the officers of the Company
immediately prior to the Effective Time shall, from and after the Effective
Time, be the initial directors and officers of the Surviving Corporation until
their successors have been duly elected or appointed and qualified, or until
their earlier death, resignation or removal in accordance with the Surviving
Corporation's Certificate of Incorporation and Bylaws.

<PAGE>
                  (c) The Certificate of Incorporation of Newco as in effect at
the Effective Time shall be the Certificate of Incorporation of the Surviving
Corporation following the Merger until thereafter amended in accordance with its
terms and the DGCL.

                  (d) The Bylaws of Newco as in effect at the Effective Time
shall be the Bylaws of the Surviving Corporation following the Merger until
thereafter changed or amended as provided by the DGCL, the Certificate of
Incorporation of the Surviving Corporation or the Bylaws of the Surviving
Corporation.


                                    ARTICLE 2

                    EFFECT OF THE MERGER ON THE CAPITAL STOCK
                         OF THE CONSTITUENT CORPORATIONS

         2.1      EFFECT ON CAPITAL STOCK. As of the Effective Time, by virtue
of the Merger and without any action on the part of the holder of any shares of
common stock, par value $.01 per share, of the Company (the "Company Common
Stock") or any shares of capital stock of Newco:

                  (a) COMMON STOCK OF NEWCO. Each share of common stock, par
value $.01 per share, of Newco (the "Newco Common Stock") issued and outstanding
immediately prior to the Effective Time shall be converted into and become one
fully paid and nonassessable share of common stock, par value $.01 per share, of
the Surviving Corporation. Each share of Class A common stock, par value $.01
per share, of Newco (the "Newco Class A Common Stock") issued and outstanding
immediately prior to the Effective Time shall be converted into and become one
fully paid and nonassessable share of Class A common stock, par value $.01 per
share, of the Surviving Corporation.

                  (b) CANCELLATION OF TREASURY STOCK AND NEWCO-OWNED COMPANY
COMMON STOCK. Each share of Company Common Stock that is owned by Newco or any
subsidiary or affiliate of Newco or held in the treasury of the Company
(collectively, the "Excluded Shares") shall automatically be canceled and
retired and shall cease to exist, and no cash, Company Common Stock or other
consideration shall be delivered or deliverable in exchange therefor.

                  (c) CONVERSION OR RETENTION OF COMPANY COMMON STOCK. Except as
otherwise provided herein, each share of Company Common Stock issued and
outstanding immediately prior to the Effective Time other than Excluded Shares
or Dissenting Shares (as defined in Section 2.1(d)) shall be converted into the
right to receive in cash from the Surviving Corporation following the Merger an
amount equal to $16.50 (the "Merger Consideration").

                  (d) DISSENTING SHARES. Notwithstanding anything in this
Agreement to the contrary, shares of Company Common Stock that are issued and
outstanding immediately prior to


                                       3

<PAGE>
the Effective Time and that are held by a holder who has validly demanded
payment of the fair value for such holder's shares as determined in accordance
with Section 262 of the DGCL ("Dissenting Shares") shall not be converted into
or be exchangeable for the right to receive the Merger Consideration (but
instead shall be converted into the right to receive payment from the Surviving
Corporation with respect to such Dissenting Shares in accordance with the DGCL),
unless and until such holder shall have failed to perfect or shall have
effectively withdrawn or lost such holder's right under the DGCL. If any such
holder shall have failed to perfect or shall have effectively withdrawn or lost
such right, each share of such holder shall be treated as a share of Company
Common Stock that had been converted as of the Effective Time into the right to
receive the Merger Consideration in accordance with Section 2.1(c). Concentra
shall give prompt notice to Newco of any demands, attempted withdrawals of such
demands and any other instruments served pursuant to applicable law received by
the Company for appraisal of shares of Company Common Stock, and Newco shall
have the right to participate in and direct all negotiations and proceedings
with respect to such demands. The Company shall not, except with the prior
written consent of Newco, make any payment with respect to, settle, offer to
settle, or approve any withdrawal of any such demands.

                  (e) CANCELLATION AND RETIREMENT OF COMPANY COMMON STOCK. As of
the Effective Time, all shares of Company Common Stock (other than Excluded
Shares and Dissenting Shares) issued and outstanding immediately prior to the
Effective Time, shall no longer be outstanding and shall automatically be
canceled and retired and shall cease to exist, and each holder of a certificate
representing any such shares of Company Common Stock shall, to the extent such
certificate represents such shares, cease to have any rights with respect
thereto, except the right to receive a cash amount equal to the Merger
Consideration per share multiplied by the number of shares so represented, to be
paid in consideration therefor upon surrender of such certificate in accordance
with Section 2.2(b).

         2.2      EXCHANGE OF CERTIFICATES.

                  (a) EXCHANGE AGENT. Prior to the mailing of the Proxy
Statement (as defined in Section 3.1(c)(iii)), Newco shall appoint a bank or
trust company to act as exchange agent (the "Exchange Agent") for the payment of
the Merger Consideration. As soon as reasonably practicable as of or after the
Effective Time, the Surviving Corporation shall deposit with the Exchange Agent,
for the benefit of the holders of shares of Company Common Stock, for exchange
in accordance with this Article 2, the aggregate Merger Consideration (such cash
consideration being hereinafter referred to as the "Exchange Fund"). The
Exchange Agent shall, pursuant to irrevocable instructions of the Surviving
Corporation, make payments of the Merger Consideration out of the Exchange Fund.
The Exchange Fund shall not be used for any other purpose.

                  (b) EXCHANGE PROCEDURES. Promptly after the Effective Time,
the Surviving Corporation shall cause the Exchange Agent to mail or deliver to
each Person (as defined in Section 3.1(a)) who was, at the Effective Time, a
holder of record of Company Common Stock a letter of transmittal containing
instructions for use by holders of Company Common Stock to effect the


                                       4

<PAGE>

exchange of their shares of Company Common Stock for the Merger Consideration as
provided herein. As soon as practicable after the Effective Time, each holder of
an outstanding certificate or certificates which prior thereto represented
shares of Company Common Stock (the "Certificates") shall, upon surrender to the
Exchange Agent of such Certificate or Certificates (or, if such shares are held
in book-entry or other uncertificated form, upon the entry through a book-entry
transfer agent of the surrender of such shares of Company Common Stock on a
book-entry account statement (any references herein to "Certificates" shall be
deemed to include references to book-entry account statements relating to the
ownership of shares of Company Common Stock)) and acceptance thereof by the
Exchange Agent, be entitled to an amount of cash equal to the Merger
Consideration per share multiplied by the number of shares represented by such
Certificate. The Exchange Agent shall accept such Certificates upon compliance
with such reasonable terms and conditions as the Exchange Agent may impose to
effect an orderly exchange thereof in accordance with normal exchange practices.
After the Effective Time, there shall be no further transfer on the records of
the Company or its transfer agent of Certificates, and if such Certificates are
presented to the Company for transfer, they shall be canceled against delivery
of the Merger Consideration. If cash is to be remitted to a name other than that
in which the Certificate surrendered for exchange is registered, it shall be a
condition of such exchange that the Certificate so surrendered shall be properly
endorsed, with signature guaranteed, or otherwise in proper form for transfer.
Until surrendered as contemplated by this Section 2.2(b), each Certificate shall
be deemed at any time after the Effective Time to represent only the right to
receive upon such surrender the Merger Consideration as contemplated by Section
2.1. No interest will be paid or will accrue on any cash payable as Merger
Consideration.

                  (c) NO FURTHER OWNERSHIP RIGHTS IN COMPANY COMMON STOCK
EXCHANGED FOR CASH. All cash paid upon the surrender for exchange of
Certificates representing shares of Company Common Stock in accordance with the
terms of this Article 2 shall be deemed to have been paid in full satisfaction
of all rights pertaining to the shares of Company Common Stock exchanged for
cash theretofore represented by such Certificates.

                  (d) TERMINATION OF EXCHANGE FUND. Any portion of the Exchange
Fund which remains undistributed to the holders of the Certificates for 183 days
after the Effective Time shall be delivered to the Surviving Corporation and any
holders of shares of Company Common Stock prior to the Merger who have not
theretofore complied with this Article 2 shall thereafter look only to the
Surviving Corporation and only as general creditors thereof for payment of the
Merger Consideration.

                  (e) NO LIABILITY. None of Newco, the Surviving Corporation or
the Exchange Agent shall be liable to any Person in respect of any cash from the
Exchange Fund delivered to a public official pursuant to any applicable
abandoned property, escheat or similar law.

                  (f) INVESTMENT OF EXCHANGE FUND. The Exchange Agent shall
invest any cash in the Exchange Fund, as directed by the Surviving Corporation,
on a daily basis. Any interest and other income resulting from such investments
shall be paid to the Surviving Corporation. To the


                                       5

<PAGE>

extent that there are losses with respect to such investments, or the Exchange
Fund diminishes for other reasons below the level required to make prompt
payments of the Merger Consideration as contemplated hereby, the Surviving
Corporation shall promptly replace or restore the portion of the Exchange Fund
lost through investments or other events so as to ensure that the Exchange Fund
is, at all times, maintained at a level sufficient to make such payments.

                  (g) WITHHOLDING RIGHTS. The Surviving Corporation shall be
entitled to deduct and withhold from the consideration otherwise payable
pursuant to this Agreement to any holder of shares of Company Common Stock such
amounts as the Surviving Corporation is required to deduct and withhold with
respect to the making of such payment under the Internal Revenue Code of 1986,
as amended (the "Code"), or any provision of state, local or foreign tax law. To
the extent that amounts are so deducted and withheld by the Surviving
Corporation, such withheld amounts shall be treated for all purposes of this
Agreement as having been paid to the holder of the shares of Company Common
Stock in respect of which such deduction and withholding was made by the
Surviving Corporation.

                  (h) LOST CERTIFICATES. If any Certificate shall have been
lost, stolen or destroyed, upon the making of an affidavit of that fact by the
Person claiming such Certificate to be lost, stolen or destroyed and, if
required by the Surviving Corporation, the posting by such Person of a bond in
such reasonable amount as the Surviving Corporation may require as indemnity
against any claim that may be made against it with respect to such Certificate,
the Exchange Agent will issue in exchange for such lost, stolen or destroyed
Certificate the Merger Consideration payable pursuant to this Agreement.

         2.3      STOCK PLANS. (a) Each of the Company's stock option plans (the
"Stock Plans") and options to acquire shares of Company Common Stock or shares
of restricted stock of the Company outstanding on the date hereof (the "Company
Stock Options"), including without limitation information concerning the date of
vesting of such options or the lapse of restrictions on such restricted stock
and the acceleration of such vesting or restrictions by virtue of the Merger or
the transactions contemplated hereby, are set forth on SCHEDULE 2.3. As soon as
practicable following the date of this Agreement, except as otherwise may be
agreed by Newco, the Company shall use its reasonable best efforts to take such
actions (which shall include, without limitation, attempting to obtain the
consents, if required, of the holders of Company Stock Options) as may be
required to effect the cancellation or amendment at the Effective Time of all
Company Stock Options that are stock options in exchange for a cash payment
equal to, in the case of each such canceled Company Stock Option, the product of
(1) the excess, if any, of the Merger Consideration per share over the exercise
price per share of such Company Stock Option and (2) the number of shares of
Company Common Stock subject to such Company Stock Option. As soon as
practicable after the date of this Agreement, the Company shall use its
reasonable best efforts to take such action (which shall include, without
limitation, attempting to obtain the consents, if required, of holders of
Company Stock Options which are shares of restricted stock of the Company) as
may be required to effect the cancellation or amendment of all such Company
Stock Options which are shares of restricted stock,


                                       6

<PAGE>

in exchange for a cash payment equal to the Merger Consideration per share to be
paid at the time such restrictions would otherwise lapse.

                  (b) Prior to the Effective Time, the Board of Directors of the
Company shall take all actions necessary to provide that at the Effective Time,
the Concentra Managed Care, Inc. Employee Stock Purchase Plan shall be
terminated.


                                    ARTICLE 3

                         REPRESENTATIONS AND WARRANTIES

         3.1      REPRESENTATIONS AND WARRANTIES OF THE COMPANY. The Company
represents and warrants as of the date hereof (or such other date as shall be
expressly specified) to Newco as follows:

                  (a) ORGANIZATION, STANDING AND POWER. Each of the Company and
its Subsidiaries (as defined below) is a corporation, partnership or a limited
liability company duly organized, validly existing and in good standing under
the laws of its respective jurisdiction of incorporation, has all requisite
corporate, partnership or limited liability company power and authority to own,
lease and operate its properties and to carry on its business as now being
conducted, and is duly qualified to do business as a foreign corporation,
partnership or limited liability company and in good standing to conduct
business in each jurisdiction in which the business it is conducting, or the
operation, ownership or leasing of its properties, makes such qualification
necessary, other than in such jurisdictions where the failure so to qualify
would not, individually or in the aggregate, have a Material Adverse Effect (as
defined below) with respect to the Company. The Company has heretofore made
available to Newco complete and correct copies of the certificates of
incorporation and bylaws (or other organizational documents) of the Company and
its Subsidiaries. All Subsidiaries of the Company, their respective
jurisdictions of incorporation or organization, their respective forms of
organization, holders of their respective outstanding capital stock or other
equity interests, and their respective jurisdictions of qualification to do
business are identified on SCHEDULE 3.1(A). As used in this Agreement, (i) a
"Material Adverse Effect" shall mean, with respect to any party, (A) a material
adverse effect on the business, operations, assets, financial condition or
results of operations of such party and its Subsidiaries, taken as a whole or
(B) a material adverse effect on the ability of such party and its Subsidiaries
to perform their respective obligations under this Agreement, (ii) "Subsidiary,"
with respect to any party, means any corporation, partnership, joint venture or
other organization, whether incorporated or unincorporated, of which (A) such
party or any other Subsidiary of such party is a general partner, (B) voting
power to elect a majority of the board of directors or others performing similar
functions with respect to such corporation, partnership, joint venture or other
organization is held by such party or by any one or more of its Subsidiaries, or
by such party and any one or more of its Subsidiaries or (C) at least 50% of the
equity interests is, directly or indirectly, owned or controlled by such party
or by any one or more of its Subsidiaries, or by such party and any one or more
of its Subsidiaries and (iii) "Person" shall


                                       7

<PAGE>

mean any natural person, firm, individual, partnership, joint venture, business
trust, trust, association, corporation, company, unincorporated entity or other
entity.

                  (b)      CAPITAL STRUCTURE.

                           (i) THE COMPANY. The authorized capital stock of the
         Company consists of 120,000,000 shares of stock of which (A)
         100,000,000 shares are Company Common Stock and (B) 20,000,000 shares
         are Preferred Stock, par value $.01 per share (the "Preferred Stock"),
         of which 250,000 shares have been designated as Series A Junior
         Participating Preferred Stock (the "Junior Preferred Stock"). As of the
         close of business on the date hereof (the "Capitalization Date"),
         47,292,199 shares of Company Common Stock were issued and outstanding;
         no shares of Preferred Stock were issued and outstanding; no shares of
         Company Common Stock were held in the Company's treasury; 6,518,741
         shares of Company Common Stock were reserved for issuance pursuant to
         the outstanding Company Stock Options; no shares were reserved for
         issuance pursuant to the Concentra Managed Care, Inc. 401(k) Plan and
         CRA Managed Care, Inc. Employee Stock Purchase Plan; an indeterminate
         number of shares (not to exceed 500,000) were reserved for issuance
         pursuant to the Concentra Managed Care, Inc. Employee Stock Purchase
         Plan; and there were outstanding rights with respect to 47,292,199 one
         one-thousandths of a share of Junior Preferred Stock under the Rights
         Agreement dated as of September 29, 1997 between the Company and
         ChaseMellon Shareholder Services, L.L.C. (the "Rights Agreement").
         Except as set forth on SCHEDULE 3.1(B)(I), no bonds, debentures, notes
         or other instruments or evidence of indebtedness of the Company
         ("Company Debt") are issued and outstanding. Except as set forth on
         SCHEDULE 3.1(B)(I), there are no outstanding securities convertible
         into, or exchangeable or exercisable for, shares of capital stock or
         other securities of the Company and, except as set forth on SCHEDULE
         3.1(B)(I), there are no calls, rights (including, without limitation,
         preemptive rights), commitments or agreements (including, without
         limitation, employment, termination and similar agreements) to which
         the Company or any of its Subsidiaries is a party or by which it is
         bound, in any case obligating the Company or any of its Subsidiaries to
         issue, deliver, sell, purchase, redeem or acquire, any securities or
         other equity interests or debt instruments of the Company, including,
         without limitation, shares of capital stock or Company Debt, or
         obligating the Company or any of its Subsidiaries to grant, extend or
         enter into any such option, warrant, call, right, commitment or
         agreement. All outstanding shares of capital stock of the Company are
         validly issued, fully paid and nonassessable and are not subject to,
         and have not been issued in violation of, preemptive or other similar
         rights. Set forth on SCHEDULE 2.5 is a list of all outstanding options,
         warrants and rights to purchase shares of Company Common Stock and the
         exercise prices relating thereto.

                           (ii) VOTING OF SHARES. Except as set forth in this
         Agreement or on SCHEDULE 3.1(B)(II), there are not as of the date
         hereof any stockholder agreements, voting trusts or other agreements or
         understandings to which the Company is a party or by which


                                       8

<PAGE>

         it is bound relating to the voting of any shares of the capital stock
         of the Company. All registration rights agreements, stockholders'
         agreements and voting agreements to which the Company or any of its
         Subsidiaries is a party are identified on SCHEDULE 3.1(B)(II).

                           (iii) SUBSIDIARIES. Except as described on SCHEDULE
         3.1(B)(III), all outstanding shares of capital stock of, or other
         ownership interests in, the Subsidiaries of the Company are owned by
         the Company or a direct or indirect Subsidiary of the Company, free and
         clear of all pledges, liens, claims, charges, security interests or
         other encumbrances of any kind (collectively, "Liens"). All such issued
         and outstanding shares of capital stock or other ownership interests
         are validly issued, fully paid and nonassessable and no such shares or
         other ownership interests have been issued in violation of any
         preemptive or similar rights. Except as set forth on SCHEDULE
         3.1(B)(III), no bonds, debentures, notes or other instruments or
         evidence of indebtedness of any Subsidiary of the Company ("Subsidiary
         Debt") are issued and outstanding. No shares of capital stock of, or
         other ownership interests in, any Subsidiary of the Company are
         reserved for issuance. There are no outstanding securities convertible
         into, or exchangeable or exercisable for, shares of capital stock of,
         or other ownership interests in, any Subsidiary of the Company. Except
         as set forth on SCHEDULE 3.1(B)(III), there are no calls, rights
         (including, without limitation, preemptive rights), commitments or
         agreements (including, without limitation, employment, termination and
         similar agreements) to which the Company or any of its Subsidiaries is
         a party or by which it is bound, in any case obligating the Company or
         any of its Subsidiaries to issue, deliver, sell, purchase, redeem or
         acquire, any securities or other equity interests or debt instruments
         of any Subsidiary of the Company, including, without limitation, shares
         of capital stock or Subsidiary Debt.

                  (c)      AUTHORITY; NO VIOLATIONS; CONSENTS AND APPROVALS.

                           (i) Subject to the adoption of this Agreement by the
         holders of a majority of the outstanding shares of Company Common Stock
         (the "Company Stockholder Approval"), the Company has all requisite
         corporate power and authority to enter into this Agreement and to
         consummate the transactions contemplated by this Agreement. The
         execution and delivery of this Agreement and the consummation of the
         transactions contemplated hereby have been duly authorized by all
         necessary corporate action on the part of the Company, subject to the
         Company Stockholder Approval. This Agreement has been duly executed and
         delivered by the Company and, subject, to the Company Stockholder
         Approval, and assuming that this Agreement constitutes the valid and
         binding agreement of Newco, constitutes a valid and binding obligation
         of the Company enforceable in accordance with its terms and conditions
         except that the enforcement hereof may be limited by (A) applicable
         bankruptcy, insolvency, reorganization, moratorium, fraudulent
         conveyance or other similar laws now or hereafter in effect relating to
         creditors' rights generally and (B) general principles of equity
         (regardless of whether enforceability is considered in a proceeding at
         law or in equity).


                                       9
<PAGE>
                           (ii) Except as set forth on SCHEDULE 3.1(C)(II), the
         execution and delivery of this Agreement and the consummation of the
         transactions contemplated hereby by the Company will not (A) conflict
         with, or result in any violation of, or default (with or without notice
         or lapse of time, or both) under, or give rise to a right of
         termination, cancellation, modification or acceleration of any material
         obligation under, or the creation of a Lien (any such conflict,
         violation, default, right of termination, cancellation , acceleration
         or creation, a "Violation"), of or pursuant to any provision of the
         certificate of incorporation or bylaws (or other organizational
         documents) of the Company or any of its Subsidiaries or (B) result in
         any Violation of (1) any loan or credit agreement, note, bond,
         mortgage, deed of trust, indenture, lease, Plan (as defined in Section
         3.1(j)), Company Permit (as defined in Section 3.1(g)), or other
         agreement, obligation, instrument, concession, franchise or license or
         (2) any judgment, order, decree, statute, law, ordinance, rule,
         regulation, writ or injunction (collectively, "Laws") applicable to the
         Company or any of its Subsidiaries or their respective properties or
         assets, except in the case of clauses (1) and (2) for any Violations
         that, individually or in the aggregate, would not have a Material
         Adverse Effect on the Company or prevent the consummation of any of the
         transactions contemplated hereby. The Board of Directors of the Company
         has taken all actions necessary under the DGCL, including approving the
         transactions contemplated by this Agreement, to ensure that Section 203
         of the DGCL does not, and will not, apply to the transactions
         contemplated hereby.

                           (iii) No consent, approval, franchise, license,
         waiver, order or authorization of, or registration, declaration or
         filing with, notice, exemption, application or certification to, or
         permit from any court, administrative agency or commission or other
         governmental authority or instrumentality, domestic or foreign (a
         "Governmental Entity"), is required by or with respect to the Company
         or any of its Subsidiaries in connection with the execution and
         delivery of this Agreement by the Company or the consummation by the
         Company of the transactions contemplated hereby, except for (A) the
         filing of a pre-merger notification and report form by the Company
         under the Hart-Scott-Rodino Antitrust Improvements Act of 1976, as
         amended (the "HSR Act"), and the expiration or termination of the
         applicable waiting period thereunder, (B) the filing with the SEC of
         (1) a proxy statement in definitive form for distribution to the
         stockholders of the Company in advance of the Stockholders Meeting in
         accordance with Regulation 14A promulgated under the Exchange Act (such
         proxy statement as amended or supplemented from time to time being
         hereinafter referred to as the "Proxy Statement") and (2) such reports
         under and such other compliance with the Exchange Act and the rules and
         regulations thereunder as may be required in connection with this
         Agreement and the transactions contemplated hereby, (C) the filing of
         the Certificate of Merger with the Secretary of State of the State of
         Delaware and appropriate documents with the relevant authorities of
         other states in which the Company does business, (D) such filings and
         approvals as may be required by any applicable state takeover,
         securities or "blue sky" laws, (E) those filings and consents as may be
         required

                                       10

<PAGE>

         under any environmental, health or safety law or regulation pertaining
         to any notification, disclosure or required approval necessitated by
         the transactions contemplated by this Agreement (all of which filings
         and consents are listed on Schedule 3.1(c)(iii)), and (F) such other
         consents, approvals, orders, authorizations, registrations,
         declarations, filings, notices or permits the failure of which to be
         obtained or made would not have a Material Adverse Effect on the
         Company or prevent the consummation of any of the transactions
         contemplated hereby.

                  (d) DISCLOSURE DOCUMENTS. The Company has made available to
Newco a true and complete copy of each report, schedule, registration statement
and definitive proxy statement filed by the Company with the SEC prior to the
date of this Agreement (the "Company SEC Documents"), which are all the
documents (other than preliminary material) that the Company was required to
file with the SEC. As of their respective dates, the Company SEC Documents
complied in all material respects with the requirements of the Securities Act of
1933 (the "Securities Act") or the Exchange Act, as the case may be, and the
rules and regulations of the SEC promulgated thereunder, and none of the Company
SEC Documents contained any untrue statement of a material fact or omitted to
state a material fact required to be stated therein or necessary to make the
statements therein, in light of the circumstances under which they were made,
not misleading. The financial statements of the Company included in the Company
SEC Documents complied as to form in all material respects with the published
rules and regulations of the SEC with respect thereto, were prepared in
accordance with generally accepted accounting principles ("GAAP") applied on a
consistent basis during the periods involved (except as may be indicated in the
notes thereto or, in the case of unaudited statements, as permitted by Rule
10-01 of Regulation S-X of the SEC) and fairly present, in accordance with
applicable requirements of GAAP (subject, in the case of the unaudited
statements, to year-end audit adjustments, as permitted by Rule 10-01, and any
other adjustments described therein), the consolidated financial position of the
Company and its consolidated Subsidiaries as of their respective dates and the
consolidated results of operations and the consolidated cash flows of the
Company and its consolidated Subsidiaries for the periods presented therein.

                  (e) INFORMATION SUPPLIED. None of the information to be
supplied by the Company specifically for inclusion or incorporation by reference
in the Proxy Statement will, on the date it is first mailed to the holders of
the Company Common Stock or on the date (the "Meeting Date") of the related
stockholders meeting (the "Stockholders Meeting"), contain any untrue statement
of a material fact or omit to state any material fact required to be stated
therein or necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading. If at any time prior to
the Meeting Date, any event with respect to the Company, or with respect to
information supplied by the Company specifically for inclusion in the Proxy
Statement, shall occur which is required to be described in an amendment of, or
supplement to, the Proxy Statement, such event shall be so described by the
Company. All documents that the Company is responsible for filing with the SEC
in connection with the transactions contemplated herein, to the extent relating
to the Company or its Subsidiaries or other information supplied by the


                                       11
<PAGE>
Company specifically for inclusion therein, will comply as to form, in all
material respects, with the provisions of the Exchange Act and the rules and
regulations thereunder, and each such document required to be filed with any
Governmental Entity other than the SEC will comply in all material respects with
the provisions of applicable Law as to the information required to be contained
therein. Notwithstanding the foregoing, the Company makes no representation or
warranty with respect to (i) the information supplied or to be supplied by Newco
for inclusion in the Proxy Statement or (ii) any projections, forward-looking
statements or similar information provided to Newco that are not of an
historical nature, except that, in the case of clause (ii), the Company has
prepared such projections or statements in good faith based upon assumptions the
Company believed to be reasonable in light of the circumstances existing at the
time such projections were made.

                  (f) NO DEFAULT. Except (i) as may result from the execution
and delivery of this Agreement and the consummation of the transactions
contemplated hereby, as set forth on SCHEDULE 3.1(C)(II), or (ii) as set forth
on SCHEDULE 3.1(F), no Violation exists (and no event has occurred which, with
notice or the lapse of time or both, would constitute a Violation) of any term,
condition or provision of (A) the certificate of incorporation or bylaws (or
other organizational documents) of the Company or any of its Subsidiaries, (B)
any loan or credit agreement, note, bond, mortgage, indenture, lease or other
agreement, obligation or commitment (collectively, "Contracts"), instrument,
permit, concession, franchise or license to which the Company or any of its
Subsidiaries is now a party or by which the Company or any of its Subsidiaries
or any of their respective properties or assets is bound or (C) any Law
applicable to the Company or any of its Subsidiaries, except in the case of (A),
(B) and (C) for Violations which, in the aggregate, would not have a Material
Adverse Effect on the Company or prevent the consummation of any of the
transactions contemplated hereby.

                  (g) COMPLIANCE WITH APPLICABLE LAWS. The Company and its
Subsidiaries hold all permits, licenses, variances, exemptions, orders,
franchises and approvals of all Governmental Entities necessary for the lawful
conduct of their respective businesses (the "Company Permits") and are in
compliance with the terms thereof, except where the failure to hold any such
Company Permits or to be in compliance would not, individually or in the
aggregate, have a Material Adverse Effect on the Company or prevent the
consummation of any of the transactions contemplated hereby. The conduct by the
Company and its Subsidiaries of their respective businesses has been in
compliance with all applicable Laws, with such exceptions as would not have,
individually or in the aggregate, a Material Adverse Effect on the Company. As
of the date of this Agreement, no investigation or review by any Governmental
Entity with respect to the Company or any of its Subsidiaries is pending or, to
the knowledge of the Company, has been threatened which would have, individually
or in the aggregate, a Material Adverse Effect on the Company or prevent the
consummation of any of the transactions contemplated hereby.

                  (h) LITIGATION. Except as set forth on SCHEDULE 3.1(H) or
disclosed in the Company SEC Documents, as of the date hereof and at and as of
the Closing Date, there is no claim, suit, action or proceeding pending or, to
the knowledge of the Company, threatened against the


                                       12


<PAGE>

Company or any Subsidiary of the Company ("Company Litigation") the loss of
which would have, individually or in the aggregate, a Material Adverse Effect on
the Company, nor is there any material judgment, decree, unfunded settlement,
award, temporary restraining order, injunction, rule or order of any
Governmental Entity or arbitrator outstanding against the Company or any
Subsidiary of the Company ("Company Order") that would have, individually or in
the aggregate, a Material Adverse Effect on the Company.

                  (i)      TAXES.

                           (i) Each of the Company, its Subsidiaries and any
         affiliated, combined or unitary group of which any such corporation is
         or was a member (A) has duly filed all material tax returns, reports,
         declarations, estimates, information returns and statements ("Tax
         Returns") required to be filed by it, or requests for extensions to
         file such Tax Returns have been timely filed and granted and have not
         expired, and such Tax Returns are true, correct and complete in all
         material respects; (B) has duly paid in full (or the Company has paid
         on its behalf) or made adequate provision in the Company's accounting
         records for all taxes for all past and current periods for which the
         Company or any of its Subsidiaries is liable; and (C) has complied in
         all material respects with all applicable laws, rules, and regulations
         relating to the payment and withholding of taxes and has in all
         material respects timely withheld from employee wages and paid over to
         the proper governmental authorities all amounts required to be so
         withheld and paid over. The most recent financial statements contained
         in the Company SEC Documents reflect adequate reserves for all taxes
         payable by the Company and its Subsidiaries for all taxable periods and
         portions thereof accrued through the date of such financial statements.
         SCHEDULE 3.1(I) sets forth the last taxable period through which the
         federal income tax returns of the Company and any of its Subsidiaries
         have been examined by the Internal Revenue Service or otherwise closed.
         All deficiencies asserted as a result of such examinations and any
         examination by any applicable state, local or foreign taxing authority
         which have not been or will not be appealed or contested in a timely
         manner have been paid, fully settled or adequately provided for in the
         most recent financial statements contained in the Company SEC
         Documents. Except as set forth on SCHEDULE 3.1(I), no federal, state,
         local or foreign tax audits or other administrative proceedings or
         court proceedings are currently pending with regard to any federal,
         state, local or foreign taxes for which the Company or any of its
         Subsidiaries would be liable, and no deficiencies for any such taxes
         have been proposed, asserted or assessed, or to the best knowledge of
         the Company or any of its Subsidiaries, threatened against the Company
         or any of its Subsidiaries pursuant to such examination of the Company
         or any of its Subsidiaries by such federal, state, local or foreign
         taxing authority with respect to any period. Except as set forth on
         SCHEDULE 3.1(I), no requests for waivers of the time to assess any
         taxes against the Company or any of its Subsidiaries have been granted
         or are pending and neither the Company nor any of its Subsidiaries has
         executed (or will execute prior to the Effective Time) any closing
         agreement pursuant to Section 7121 of the Code, or any predecessor


                                       13
<PAGE>

         provision thereof or any similar provision of state, local or foreign
         income tax law that relates to the assets or operations of the Company
         or any of its Subsidiaries. Neither the Company nor any of its
         Subsidiaries is a party to any agreement providing for the allocation
         or sharing of liability for any taxes. The Company has made available
         to Newco complete and accurate copies of all income and franchise Tax
         Returns and all other material Tax Returns filed by or on behalf of the
         Company or any of its Subsidiaries for the taxable years ending on or
         prior to December 31, 1997. Except as set forth on SCHEDULE 3.1(I),
         neither the Company nor any of its Subsidiaries has made any payments
         subject to Section 280G of the Code, or is obligated to make any such
         payments that will not be deductible under Section 280G of the Code, or
         is a party to any agreement that under certain circumstances could
         obligate it to make any payments that will not be deductible under
         Section 280G of the Code. Neither the Company nor any of its
         Subsidiaries has been a United States real property holding corporation
         within the meaning of Section 897(c)(2) of the Code during the
         applicable period specified in Section 897(c)(1)(A)(ii) of the Code. As
         used in this Agreement the term "taxes" includes all federal, state,
         local and foreign or other taxing authority income, franchise,
         property, sales, use, ad valorem, payroll, social security,
         unemployment, assets, value added, withholding, excise, severance,
         transfer, employment, alternative or add-on minimum and other taxes,
         charges, fees, levies, imports, duties, licenses or other assessments
         including without limitation obligations for withholding taxes from
         payments due or made to any other person, together with any interest,
         penalties or additional amounts imposed by any taxing authority or
         additions to tax.

                  (j)      PENSION AND BENEFIT PLANS; ERISA.

                           (i) For purposes of this Agreement, the term "Plan"
         shall refer to any of the following maintained by the Company, any of
         its Subsidiaries or any of their respective ERISA Affiliates (as
         defined below), or with respect to which the Company, any of its
         Subsidiaries or any of their respective ERISA Affiliates contributes or
         has any obligation to contribute or has any liability (including,
         without limitation, a liability arising out of an indemnification,
         guarantee, hold harmless or similar agreement): any plan, program,
         arrangement, agreement or commitment, whether written or oral, which is
         an employment, consulting, deferred compensation or change-in-control
         agreement, or an executive compensation, incentive bonus or other
         bonus, employee pension, profit-sharing, savings, retirement, stock
         option, stock purchase, severance pay, change-in-control, life, health,
         disability or accident insurance plan, or other employee benefit plan,
         program, arrangement, agreement or commitment, whether written or oral,
         including, without limitation, any "employee benefit plan" as defined
         in Section 3(3) of the Employee Retirement Income Security Act of 1974,
         as amended ("ERISA"). SCHEDULE 3.1(J)(I) sets forth each employment
         agreement with a person who is entitled to receive at least $100,000
         per year from the Company or any of its Subsidiaries (other than
         employment agreements terminable without material liability (not
         otherwise disclosed) on not more than sixty (60) days' notice).


                                       14
<PAGE>

                           (ii) SCHEDULE 3.1(J)(II) identifies each "employee
         benefit plan" as defined in Section 3(3) of ERISA that the Company, its
         Subsidiaries or any of their respective ERISA Affiliates maintains or
         contributes to. None of the Company, its Subsidiaries or any of their
         respective ERISA Affiliates has maintained or contributed to any of the
         following during the three years immediately preceding the date of this
         Agreement:

                                    (A) a defined benefit plan subject to Title
         IV of ERISA;

                                    (B) a "Multiemployer plan" as defined in
         Section 4001 of ERISA;

         or

                                    (C) a "Multiple Employer Plan" as that term
         is defined in Section 413(a) of the Code.


                           (iii) No event has occurred and no condition or
         circumstance currently exists, in connection with which the Company,
         any of its Subsidiaries, their respective ERISA Affiliates or any Plan,
         directly or indirectly, could be subject to any liability under ERISA,
         the Code or any other Law applicable to any Plan which would be
         reasonably likely to have a Material Adverse Effect on the Company.

                           (iv) With respect to each Plan, (A) all material
         payments due from the Company or any of its Subsidiaries to date have
         been made and all material amounts that should be accrued (in
         accordance with GAAP) as liabilities of the Company or any of its
         Subsidiaries which have not been paid have been properly recorded on
         the books of the Company, (B) each such Plan which is an "employee
         pension benefit plan" (as defined in Section 3(2) of ERISA) and
         intended to qualify under Section 401 of the Code has either received a
         favorable determination letter from the Internal Revenue Service with
         respect to such qualifications as of the date specified in SCHEDULE
         3.1(J)(IV) or has filed for such a determination letter with the
         Internal Revenue Service within the time permitted under Rev. Proc.
         95-12 (December 29, 1994), 1995-3 IRB 24, and nothing has occurred
         since the date of such letter that has resulted in or could reasonably
         be expected to result in a tax qualification defect which would have a
         Material Adverse Effect on the Company, and (C) there are no material
         actions, suits or claims pending (other than routine claims for
         benefits) or, to the Company's knowledge, threatened with respect to
         such Plan or against the assets of such Plan.

                           (v) Except as disclosed in SCHEDULE 3.1(J)(V), each
         Plan has been operated and administered in accordance with its terms
         and in compliance with applicable ERISA provisions and the Code, except
         where any such non-compliance could not reasonably be expected to have
         a Material Adverse Effect on the Company.


                                       15
<PAGE>

                           (vi) Neither the Company nor any of its ERISA
         Affiliates, nor to the knowledge of the Company or any of its ERISA
         Affiliates, any other "disqualified person" or "party in interest" (as
         defined in Section 4975 of the Code and Section 3(14) of ERISA,
         respectively) with respect to a Plan has breached the fiduciary rules
         of ERISA or engaged in a prohibited transaction which could subject the
         Company or any of its Subsidiaries to any tax or penalty imposed under
         Section 4975 of the Code or Section 502(i), (j), or (l) of ERISA, where
         any such breach, tax or penalty could reasonably be expected to have a
         Material Adverse Effect on the Company.

                           (vii) All reporting and disclosure obligations
         imposed under ERISA and the Code have been satisfied with respect to
         each Plan, except where any failure to satisfy such obligations could
         not reasonably be expected to have a Material Adverse Effect on the
         Company.

                           (viii) Each Plan which is subject to the requirements
         of the Consolidated Omnibus Budget Reconciliation Act of 1985 ("COBRA")
         and the Health Insurance Portability and Accountability Act ("HIPAA")
         has been maintained in compliance with COBRA and HIPAA, including all
         notice requirements, and no tax payable on account of Section 4980B or
         any other section of the Code has been or is expected to be incurred
         with respect to any Plan, except where any such noncompliance or tax
         could not reasonably be expected to have a Material Adverse Effect on
         the Company.

                           (ix) The Company has made available to Newco, with
         respect to each Plan for which the following exists:

                                    (A) a copy of the most recent annual report
                  on Form 5500, with respect to such Plan including any Schedule
                  B thereto;

                                    (B) the most recent determination letter
                  from the Internal Revenue Service, if any;

                                    (C) a copy of the Summary Plan Description,
                  together with each Summary of Material Modifications with
                  respect to such Plan and, unless the Plan is embodied entirely
                  in an insurance policy to which the Company or any of its
                  Subsidiaries is a party, a true and complete copy of such
                  Plan; and

                                    (D) if the Plan is funded through a trust or
                  any third party funding vehicle (other than an insurance
                  policy), a copy of the trust or other funding agreement and
                  the latest financial statements thereof.

                           (x) Except as disclosed in the Company SEC Documents
         or as required by this Agreement, neither the Company nor any of its
         Subsidiaries has any announced plan


                                       16

<PAGE>

         or legally binding commitment to create any additional material Plans
         or to make any material amendment or modification to any existing Plan,
         except as required by law or as necessary to maintain tax-qualified
         status.

                           (xi) The Company and its ERISA Affiliates have
         complied in all respects with all Laws relating to the hiring and
         retention of all employees, leased employees and independent
         contractors relating to wages, hours, Plans, equal opportunity,
         collective bargaining and the payment of social security and other
         taxes, except where such noncompliance could not reasonably be expected
         to have a Material Adverse Effect on the Company.

                           (xii) Notwithstanding anything else set forth herein,
         neither the Company nor any Subsidiary of the Company has incurred any
         liability with respect to any Plan under ERISA (including, without
         limitation, Title I or Title IV of ERISA), the Code or other applicable
         Law (other than the liability attributable to the provision of benefits
         under the Plans), which has not been satisfied in full, and no event
         has occurred, and there exists no condition or set of circumstances
         which could result in the imposition of any liability under ERISA
         (including, without limitation, Title I or Title IV of ERISA), the Code
         or other applicable Law with respect to any of the Plans, which
         liability would, individually or in the aggregate, have a Material
         Adverse Effect on the Company.


                           (xiii) Except as disclosed in SCHEDULE 3.1(J)(XIII),
         no Plan, other than a Plan which is an employee pension benefit plan
         (within the meaning of Section 3(2)(A) of ERISA), provides material
         benefits, including without limitation death, health or medical
         benefits (whether or not insured), with respect to current or former
         employees of the Company or any Subsidiary of the Company beyond their
         retirement or other termination of service with the Company or such
         Subsidiary (other than (A) coverage mandated by applicable law, (B)
         deferred compensation benefits properly accrued as liabilities on the
         books of the Company, or (C) benefits the full cost of which is borne
         by the current or former employee (or his beneficiary)).

                           (xiv) Except as set forth on SCHEDULE 3.1(J)(XIV),
         the consummation of the transactions contemplated by this Agreement
         will not (A) entitle any current or former employee or officer of the
         Company or any Subsidiary to material severance pay, unemployment
         compensation or any other payment, or (B) accelerate the time of
         payment or vesting, or materially increase the amount of compensation
         due any such employee or officer.

                           (xv) For purposes of this Section 3.1(j), ERISA
         Affiliates include each corporation that is a member of the same
         controlled group as the Company or any of its Subsidiaries within the
         meaning of Section 414(b) of the Code, any trade or business, whether
         or not incorporated, under common control with the Company or any of
         its Subsidiaries within the meaning of Section 414(c) of the Code and
         any member of an


                                       17
<PAGE>

         affiliated service group that includes the Company, any of its
         Subsidiaries and any of the corporations, trades or business described
         above, within the meaning of Section 414(m) of the Code.

                  (k) ABSENCE OF CERTAIN CHANGES OR EVENTS. Since September 30,
1998 and except as disclosed in SCHEDULE 3.1(K) or the Company SEC Documents,
(i) each of the Company and its Subsidiaries has conducted its business, in all
material respects, only in the ordinary course and in a manner consistent with
past practice (except in connection with the negotiation and execution and
delivery of this Agreement), (ii) no event has occurred that would have been
prohibited by the terms of Section 4.2 had the terms of such Section been in
effect as of and at all times since September 30, 1998, (iii) there has been no
material change by the Company in its accounting methods, principles or
practices and (iv) other than any event relating to the economy or securities
markets in general, there has not been any event or events (whether or not
covered by insurance), individually or in the aggregate, having, or that would
be reasonably expected to have, a Material Adverse Effect on the Company.

                  (l) NO UNDISCLOSED MATERIAL LIABILITIES. There are no
liabilities of the Company or any of its Subsidiaries of any kind whatsoever,
whether accrued, contingent, absolute, determined, determinable or otherwise,
that could reasonably be expected to have, individually or in the aggregate, a
Material Adverse Effect on the Company, other than (i) liabilities reflected in
the Company's financial statements (together with the related notes thereto)
filed with the Company's quarterly report on Form 10-Q for the quarter ended
September 30, 1998, (ii) liabilities under this Agreement or for professional
fees and expenses in connection with the transactions contemplated hereby and
(iii) liabilities that have occurred in the ordinary course of business since
September 30, 1998.

                  (m) OPINION OF FINANCIAL ADVISOR. The Board of Directors of
the Company has received the opinion of BT Alex. Brown Incorporated (the
"Financial Advisor") dated March 2, 1999 to the effect that, as of such date,
the Merger Consideration to be received by the holders of Company Common Stock
in the Merger (other than Welsh, Carson, Anderson & Stowe VIII, L.P. ("WCAS") or
its affiliates) is fair from a financial point of view to such holders, and such
opinion has not been withdrawn or materially and adversely modified. True and
complete copies of all agreements and understandings between the Company and the
Financial Advisor relating to the transactions contemplated by this Agreement
have been provided by the Company to Newco.

                  (n) VOTE REQUIRED. The affirmative vote of the holders of a
majority of the outstanding shares of Company Common Stock is the only vote of
the holders of any class or series of the Company's capital stock necessary
(under applicable Law or otherwise) to adopt this Agreement.

                  (o) ENVIRONMENTAL MATTERS. Except as set forth in the Company
SEC Documents, (i) the assets, properties, businesses and operations of the
Company and its Subsidiaries are in


                                       18
<PAGE>

compliance with applicable Environmental Laws (as defined herein), except for
such non-compliance which has not had and will not have, individually or in the
aggregate, a Material Adverse Effect on the Company, (ii) the Company and its
Subsidiaries have obtained and, as currently operating, are in compliance with
all Company Permits necessary under any Environmental Law for the conduct of the
business and operations of the Company and its Subsidiaries in the manner now
conducted except for such non-compliance which has not had and will not have,
individually or in the aggregate, a Material Adverse Effect on the Company, and
(iii) neither the Company nor any of its Subsidiaries nor any of their
respective assets, properties, businesses or operations has received or is
subject to any outstanding order, decree, judgment, complaint, agreement, claim,
citation, notice or proceeding indicating that the Company or any of its
Subsidiaries is or may be liable for a violation of any Environmental Law which
liability would have, individually or in the aggregate, a Material Adverse
Effect on the Company nor, to the knowledge of the Company, has any such order,
decree, judgment, complaint, claim, citation, notice or proceeding been
threatened. As used in this Agreement, the term "Environmental Law" means any
law, regulation, decree, judgment, permit or authorization relating to works or
public safety and the indoor and outdoor environment, including, without
limitation, pollution, contamination, clean-up, regulation and protection of the
air, water or soils in the indoor or outdoor environment.

                  (p) BOARD RECOMMENDATION. The Board of Directors of the
Company, at a meeting duly called and held, has by the unanimous vote of those
directors present (i) determined that this Agreement and the transactions
contemplated hereby, including the Merger, are advisable and fair to and in the
best interests of the stockholders of the Company and has approved the same and
(ii) resolved to recommend, subject to their fiduciary duties under applicable
Law and Sections 5.2 and 5.11(b), that the holders of the shares of Company
Common Stock approve and adopt this Agreement.

                  (q) INTELLECTUAL PROPERTY. Except as set forth on SCHEDULE
3.1(Q), each of the Company and its Subsidiaries owns or has a valid right to
use each trademark, trade name, patent, service mark, brand mark, brand name,
computer program, database, industrial design and copyright required, owned or
used in connection with the operation of its businesses, including any
registrations thereof and pending applications therefor, and each license or
other contract relating thereto that is material to the conduct of its business
(collectively, the "Company Intellectual Property"), except where the failure to
own or have a right to use such property would not have, individually or in the
aggregate, a Material Adverse Effect on the Company. All material Company
Intellectual Property is set forth on SCHEDULE 3.1(Q). Except as set forth on
SCHEDULE 3.1(Q), the use of the Company Intellectual Property by the Company or
its Subsidiaries does not conflict with, infringe upon, violate or interfere
with or constitute an appropriation of any right, title, interest or goodwill,
including, without limitation, any intellectual property right, trademark, trade
name, patent, service mark, brand mark, brand name, computer program, database,
industrial design, copyright or any pending application therefor of any other
Person. Except as set forth on SCHEDULE 3.1(Q), the use of all Company
Intellectual Property will not be adversely affected by the transactions



                                       19

<PAGE>

contemplated in this Agreement. The Company is taking reasonable precautions to
prevent disclosure of any confidential Company Intellectual Property.

                  (r) INSURANCE. The Company and its Subsidiaries are covered by
valid and currently effective insurance policies issued in favor of the Company
that are customary in all material respects for companies of similar size and
financial condition in the Company's industry. Except as set forth on SCHEDULE
3.1(R), all such policies are in full force and effect, all premiums due thereon
have been paid and the Company has complied with the provisions of such
policies, except where such failure to be in full force and effect, such
nonpayment or such noncompliance would not have, individually or in the
aggregate, a Material Adverse Effect on the Company. Except as set forth on
SCHEDULE 3.1(R), the Company has not been advised of any defense to coverage in
connection with any material claim to coverage asserted or noticed by the
Company under or in connection with any of its extant insurance policies. The
Company has not received any written notice from or on behalf of any insurance
carrier issuing policies or binders relating to or covering the Company and its
Subsidiaries that there will be a cancellation or non-renewal of existing
policies or binders.

                  (s) LABOR MATTERS. Neither the Company nor any of its
Subsidiaries is a party to, or is bound by, any collective bargaining agreement,
contract or other agreement or understanding with a labor union or labor
organization, nor is the Company or any of its Subsidiaries the subject of a
proceeding asserting that it or any such Subsidiary has committed an unfair
labor practice (within the meaning of the National Labor Relations Act) or
seeking to compel it or such Subsidiaries to bargain with any labor organization
as to wages and conditions of employment. There is (i) no strike or material
labor dispute, slowdown or stoppage pending or, to the knowledge of the Company,
threatened against the Company or any of its ERISA Affiliates and (iii) to the
knowledge of the Company, no union representation question existing with respect
to the employees of the Company or its ERISA Affiliates.

                  (t) CONTRACTS. Except as set forth on SCHEDULE 3.1(K), neither
the Company nor any of its Subsidiaries is a party to any Contract required to
be described in or filed as an exhibit to any Company SEC Document that is not
described in or filed as required by the Securities Act or the Exchange Act, as
the case may be. Except as set forth on SCHEDULE 3.1(K), and except for matters
that would not, individually or in the aggregate, have a Material Adverse Effect
on the Company, (i) neither the Company nor any of its Subsidiaries is (with or
without the lapse of time or the giving of notice, or both) in breach or default
in any material respect under any Contract, (ii) to the knowledge of the
Company, none of the other parties to any Contract is (with or without the lapse
of time or the giving of notice, or both) in breach or default in any material
respect under any Contract and (iii) neither the Company nor any of its
Subsidiaries has received any written notice of the intention of any party to
terminate any Contract whether as a termination for convenience or for default
of the Company or any of its Subsidiaries thereunder.



                                       20
<PAGE>

                  (u) AFFILIATED TRANSACTIONS. Except as set forth on SCHEDULE
3.1(U) or in the Company SEC Documents, no executive officer or director of the
Company (or, to the Company's knowledge, any spouse of any such individual or
any entity in which such individual owns a material beneficial interest) is a
party to any agreement, contract, commitment, transaction or understanding with
or binding upon the Company or any of its Subsidiaries or any of their
respective assets or has any material interest in any material property owned by
the Company or its Subsidiaries or has engaged in any transaction with any of
the foregoing within the last twelve months.

                  (v) RIGHTS AGREEMENT AMENDMENT. The Company has entered into
an amendment to the Rights Agreement (the "Rights Agreement Amendment") pursuant
to which (i) the Rights Agreement and the Rights will not be applicable to the
Merger, (ii) the execution of this Agreement and the consummation of the Merger
shall not result in a "Distribution Date" under the Rights Agreement, (iii)
consummation of the Merger shall not result in Newco or its affiliates being an
"Acquiring Person," result in the occurrence of an event described in Section 14
of the Rights Agreement or otherwise result in the ability of any Person to
exercise any material rights under the Rights Agreement or enable or require the
Rights to separate from the shares of Company Common Stock to which they are
attached and (iv) the Rights Agreement will expire immediately prior to the
Effective Time.

         3.2 REPRESENTATIONS AND WARRANTIES OF NEWCO. Newco represents and
warrants to the Company as of the date hereof (or such other date as shall be
expressly specified) as follows:

                  (a) ORGANIZATION, STANDING AND POWER. Newco is a corporation
duly organized, validly existing and in good standing under the laws of the
State of Delaware and has all requisite corporate power and authority to own,
lease and operate its properties and to carry on its business as now being
conducted, and is duly qualified to do business as a foreign corporation and in
good standing to conduct business in each jurisdiction in which the business it
is conducting, or the operation, ownership or leasing of its properties, makes
such qualification necessary, other than in such jurisdictions where the failure
so to qualify would not have a Material Adverse Effect with respect to Newco.
Newco has heretofore made available to the Company complete and correct copies
of its certificate of incorporation and bylaws.

                  (b) CAPITAL STRUCTURE. As of the date of this Amended and
Restated Agreement, the authorized capital stock of Newco consists of (i)
100,000,000 shares of Newco Common Stock, ten shares of which have been validly
issued and are fully paid, nonassessable and owned of record and beneficially by
WCAS, free and clear of any Lien, (ii) 20,000,000 shares of preferred stock, par
value $.01 per share ("Newco Preferred Stock") and (iii) 5,000,000 shares of
Newco Class A Common Stock. No shares of Newco Preferred Stock or Newco Class A
Common Stock are issued and outstanding.



                                       21
<PAGE>

                  (c)      AUTHORITY; NO VIOLATIONS; CONSENTS AND APPROVALS.

                           (i) Newco has all requisite corporate power and
         authority to enter into this Agreement and to consummate the
         transactions contemplated hereby. The execution and delivery of this
         Agreement by Newco have been duly authorized by all necessary corporate
         action on the part of Newco. This Agreement has been duly executed and
         delivered by Newco and, assuming that such constitutes the valid and
         binding agreement of the Company, constitutes the valid and binding
         obligation of Newco enforceable in accordance with its terms and
         conditions except that the enforcement hereof may be limited by (A)
         applicable bankruptcy, insolvency, reorganization, moratorium,
         fraudulent conveyance or other similar laws now or hereafter in effect
         relating to creditors' rights generally and (B) general principles of
         equity (regardless of whether enforceability is considered in a
         proceeding at law or in equity).

                           (ii) The execution and delivery of this Agreement and
         the consummation of the transactions contemplated hereby by Newco will
         not (A) result in any Violation of any provision of the certificate of
         incorporation or bylaws of Newco or (B) result in any Violation of (1)
         any loan or credit agreement, note, mortgage, indenture, lease, or
         other agreement, obligation, instrument, concession, franchise or
         license or (2) any Law applicable to Newco or its properties or assets,
         except in the case of clauses (1) and (2), for any Violations that,
         individually or in the aggregate, would not have a Material Adverse
         Effect on Newco or prevent the consummation of any of the transactions
         contemplated hereby.

                           (iii) No consent, approval, order or authorization
         of, or registration, declaration or filing with, notice to, or permit
         from any Governmental Entity is required by or with respect to Newco in
         connection with its execution and delivery of this Agreement or the
         consummation by Newco of the transactions contemplated hereby, except
         for (A) filings under the HSR Act, (B) the filing with the SEC of such
         reports under and such other compliance with the Exchange Act and the
         rules and regulations thereunder as may be required in connection with
         this Agreement and the transactions contemplated hereby, (C) the filing
         of the Certificate of Merger with the Secretary of State of the State
         of Delaware and (D) such filings and approvals as may be required by
         any applicable state securities, "blue sky" or takeover laws.

                  (d) INFORMATION SUPPLIED. None of the information to be
supplied by Newco specifically for inclusion or incorporation by reference in
the Proxy Statement will, on the date it is first mailed to the holders of
Company Common Stock or at the Meeting Date, contain any untrue statement of a
material fact or omit to state any material fact required to be stated therein
or necessary in order to make the statements therein, in light of the
circumstances under which they are made, not misleading. If at any time prior to
the Meeting Date, any event with respect to Newco, or with respect to
information supplied by Newco specifically for inclusion in the Proxy Statement,
shall occur which is required to be described in an amendment of, or supplement
to, the Proxy Statement, such event shall be so described by Newco and provided
to the Company. All documents that Newco is responsible for filing with the SEC
in connection with the transactions contemplated


                                       22

<PAGE>

herein will comply as to form, in all material respects, with the provisions of
the Exchange Act and the rules and regulations thereunder, and each such
document required to be filed with any Governmental Entity other than the SEC
will comply in all material respects with the provisions of applicable Law as to
the information required to be contained therein. Notwithstanding the foregoing,
Newco makes no representation or warranty with respect to the information
supplied or to be supplied by the Company for inclusion in the Proxy Statement.

                  (e) BOARD RECOMMENDATION. The Board of Directors of Newco has
determined by unanimous written consent that this Agreement and the transactions
contemplated hereby, including the Merger, are advisable and fair to and in the
respective best interests of Newco and has approved the same. WCAS, the sole
stockholder of Newco, has approved and adopted this Agreement.

                  (f) FRAUDULENT CONVEYANCE. Assuming the accuracy of the
representations and warranties of the Company set forth in this Agreement, Newco
has no reason to believe that the financing to be provided to Newco to
effectuate the Merger will cause (i) the fair salable value of the Surviving
Corporation's assets to be less than the total amount that will be required to
pay its existing liabilities (including known contingent liabilities), (ii) the
Surviving Corporation not to be able to pay its existing liabilities (including
known contingent liabilities) as they mature, or (iii) the Surviving Corporation
to have an unreasonably small amount of capital with which to engage in its
business activities.

                  (g) INTERIM OPERATIONS OF NEWCO. Newco was formed on March 1,
1999 solely for the purpose of engaging in the transactions contemplated hereby.
Newco has engaged in no other business activities and has conducted its
operations only as contemplated hereby. Except for (i) obligations or
liabilities incurred in connection with its incorporation or organization and
the transactions contemplated by this Agreement and (ii) this Agreement and any
other agreements or arrangements contemplated by this Agreement or in
furtherance of the transactions contemplated hereby, Newco has not incurred,
directly or indirectly, through any subsidiary or affiliate, any obligations or
liabilities or engaged in any business activities of any type or kind whatsoever
or entered into any agreements or arrangements with any Person.

                  (h) FINANCING. Newco has provided a binding commitment, in the
form of a bid letter from WCAS to the Company dated February 26, 1999 (the
"Equity and Bridge Commitment"), and has received binding written commitments,
dated February 26, 1999, addressed to WCAS, from Chase Securities, Inc., The
Chase Manhattan Bank, DLJ Capital Funding, Inc., Credit Suisse First Boston and
Fleet National Bank (the "Debt Commitments"), and "highly confident" letters
dated February 24, 1999, from Donaldson, Lufkin & Jenrette Securities
Corporation and Chase Securities, Inc. (the "Highly Confident Letters"). Chase
Capital Partners and WCAS have provided binding commitments in the form of
commitment letters dated February 24, 1999 and March 1, 1999, respectively, to
purchase from the Company pay-in-kind senior unsecured notes of the Company and
Company Common Stock (the "PIK Investment Letters"). WCAS Capital Partners III,
L.P. has


                                       23

<PAGE>

provided binding commitment to provide certain bridge financing, in the
form of a commitment letter dated February 26, 1999, from WCAS to the Company
(the "Bridge Commitment"). Ferrer Freeman Thompson & Co., on behalf of Health
Care Capital Partners L.P. and Health Care Executive Partners L.L.P.
(collectively, "HCCP") has executed a subscription agreement with Newco pursuant
to which HCCP has agreed to contribute to the equity capital of Newco (together
with the Equity and Bridge Commitment, the Debt Commitments, the Highly
Confident Letters and the PIK Investment Letters and the Bridge Commitment, the
"Financing Commitments"). True and correct copies of the Financing Commitments
have been furnished to the Company. The Financing Commitments have been
obtained, subject to the terms and conditions of the Financing Commitments, to
provide the financing necessary to pay the Merger Consideration pursuant to the
Merger, to pay (or provide the funds for the Company to pay) all amounts
contemplated by Section 5.10 when due, to refinance any indebtedness or other
obligation of the Company and its Subsidiaries which may become due as a result
of this Agreement or any of the transactions contemplated hereby, and to pay all
related fees and expenses (the financing necessary to provide such funds
pursuant to the Financing Commitments being hereinafter referred to as the
"Financing"), which Financing Commitments are in full force and effect as of the
date of this Amended and Restated Agreement. It is the good faith belief of
Newco, as of the date of this Amended and Restated Agreement, that the Financing
will be obtained, and Newco shall use commercially reasonable efforts to obtain
the Financing, including using commercially reasonable efforts to fulfill or
cause the fulfillment of any of the conditions thereto. If the Financing is not
available, Newco shall use commercially reasonable efforts to obtain other
financing (on terms no more burdensome in any material respect than those set
forth in the Financing Commitments) to consummate the transactions contemplated
hereby.

                  (i) LITIGATION. As of the date hereof, there is no claim,
suit, action or proceeding pending or, to the knowledge of Newco, threatened
against Newco or any of its affiliates nor is there any material judgment,
decree, unfunded settlement, award, temporary restraining order, injunction,
rule or order of any Governmental Entity or arbitrator outstanding against Newco
or any of its affiliates that would have a Material Adverse Effect on Newco or
prevent the consummation of any of the transactions contemplated by this
Agreement.

                  (j) OWNERSHIP OF SHARES. Except as set forth in the Schedule
13D filed by WCAS with the SEC on October 20, 1998, as amended on January 6,
1999, with respect to its ownership of certain shares of Company Common Stock
and certain Company Debt, none of WCAS, HCCP, Newco or their affiliates
beneficially own (within the meaning of Rule 13d-3 under the Exchange Act)
shares of Company Common Stock or any principal amount of Company Debt.

                  (k) SOLVENCY. Newco hereby represents that Newco is now and
since inception has been solvent and that it holds assets the current value of
which exceed the current value of its debts.



                                       24
<PAGE>

                  (l) CONTRIBUTION OBLIGATION. Newco has received the
undertaking of its sole stockholder obligating the sole stockholder to
contribute to the equity capital of Newco pursuant to the terms of a letter
agreement delivered to the Company concurrently with Newco's execution and
delivery of this Agreement.

                                    ARTICLE 4

                    COVENANTS RELATING TO CONDUCT OF BUSINESS

         4.1 AFFIRMATIVE COVENANTS OF THE COMPANY. During the period from the
date of this Agreement and continuing until the Effective Time except as
expressly contemplated or permitted by this Agreement or to the extent that
Newco shall otherwise consent in writing, (i) the Company shall, and shall cause
each of its Subsidiaries to, carry on its businesses in the usual, regular and
ordinary course in substantially the same manner as heretofore conducted and
(ii) the Company shall, and shall cause each of its Subsidiaries to, use all
reasonable efforts to preserve intact its present business organization and
goodwill, maintain its rights and franchises and retain the services of its
current officers and key employees and preserve its relationships with
customers, suppliers and others having business dealings with it.

         4.2 NEGATIVE COVENANTS OF THE COMPANY. During the period from the date
of this Agreement and continuing until the Effective Time except as expressly
contemplated or permitted by this Agreement or to the extent that Newco shall
otherwise consent in writing:

                  (a) the Company shall not, and shall not permit any of its
Subsidiaries to, (i) declare, set aside or pay any dividends on or make other
distributions in respect of any of its capital stock (except for cash dividends
paid to the Company and its wholly-owned Subsidiaries with regard to the
Company's Subsidiaries' capital stock), or set aside funds therefor, (ii)
adjust, split, combine or reclassify any of its capital stock, or issue,
authorize or propose the issuance of any other securities in respect of, in lieu
of or in substitution for, shares of its capital stock or (iii) repurchase,
redeem or otherwise acquire any shares of its capital stock, except as required
by the terms of its securities outstanding or any Plan in effect on the date
hereof, or set aside funds therefor;

                  (b) other than in accordance with the Rights Agreement, the
Company shall not, and shall not permit any of its Subsidiaries to, (i) grant
any options, warrants or other rights to purchase shares of capital stock, (ii)
amend the terms of or reprice any Company Stock Option outstanding on the date
of this Agreement or amend the terms of any Stock Option Plan, or (iii) except
for shares issuable pursuant to Company Stock Options outstanding on the date of
this Agreement, shares issuable upon conversion of the Company's 6% Convertible
Subordinated Notes due 2001 and 4.5% Convertible Subordinated Notes due 2003 and
issuances of capital stock of the Company's Subsidiaries to the Company or to a
wholly-owned Subsidiary of the Company, issue, deliver, pledge, sell or
otherwise encumber any shares of its capital stock, any Company Debt or any


                                       25
<PAGE>

Subsidiary Debt, or any securities convertible into, or any rights, warrants or
options to acquire, any such shares, Company Debt or Subsidiary Debt;

                  (c) the Company shall not, and shall not permit any of its
Subsidiaries to, amend or propose to amend its certificate of incorporation or
bylaws (or other organizational documents);

                  (d) the Company shall not, and shall not permit any of its
Subsidiaries to, (i) merge or consolidate with, or acquire any equity interest
in, any corporation, partnership, association or other business organization, or
enter into an agreement with respect thereto, except for (A) a merger of a
wholly-owned Subsidiary of the Company with or into the Company or another
wholly-owned Subsidiary of the Company, (B) the creation of a wholly-owned
Subsidiary of the Company in the ordinary course of business or (C) investments
in joint ventures not in excess of $5,000,000 in the aggregate, (ii) acquire or
agree to acquire any material assets, except for (A) acquisitions involving the
payment of consideration by the Company not in excess of $10,000,000 in the
aggregate and (B) those acquisitions described on SCHEDULE 4.2(D), or (iii) make
any loan or advance to, or otherwise make any investment in, any persons in
excess of $5,000,000 in the aggregate, other than loans or advances to, or
investments in, a wholly-owned Subsidiary of the Company existing on the date of
this Agreement;

                  (e) the Company shall not, and shall not permit any of its
Subsidiaries to, sell, lease, encumber or otherwise dispose of, or agree to
sell, lease (whether such lease is an operating or capital lease), encumber or
otherwise dispose of, any of its material assets (including, without limitation,
any capital stock or other ownership interest in any Subsidiary of the Company),
other than sales or leases in the ordinary course of business consistent with
past practice;

                  (f) the Company shall not, and shall not permit any of its
Subsidiaries (other than wholly-owned Subsidiaries acquired by the Company) to,
authorize, recommend, propose or announce an intention to adopt a plan of
complete or partial liquidation or dissolution;

                  (g) except for increases in the compensation (including,
without limitation, salary, bonus and other benefits) of employees of the
Company or its Subsidiaries (other than directors or executive officers) made in
the ordinary course of business and consistent with past practice, the Company
shall not, and shall not permit any of its Subsidiaries to, except as may be
required by applicable Law or pursuant to any of the Plans existing on the date
of this Agreement, (i) enter into any new, or materially amend any existing,
employment or severance or termination agreement with any director, officer or
key employee or (ii) become obligated under any new Plan, which was not in
existence on the date hereof, or amend any such plan or arrangement in existence
on the date hereof if such amendment would have the effect of materially
enhancing any benefits thereunder;

                  (h) the Company shall not, and shall not permit any of its
Subsidiaries to, (i) assume or incur any indebtedness for borrowed money (except
for lease obligations incurred in the


                                       26

<PAGE>

ordinary course of business and consistent with the past practice or drawdowns
by the Company under its existing revolving credit facility, if any, made in the
ordinary course of business consistent with past practice), (ii) issue or sell
any debt securities or warrants or rights to acquire any debt securities or
(iii) guarantee any debt obligations of any other Person (except obligations of
wholly-owned Subsidiaries of the Company);

                  (i   the Company shall not, and shall not permit any of its
Subsidiaries to, other than as required by the SEC, applicable Law or GAAP, make
any material changes with respect to accounting policies, procedures and
practices;

                  (j   the Company shall not, and shall not permit any of its
Subsidiaries to, settle or compromise any claims or litigation involving
payments by the Company or any of its Subsidiaries of more than $500,000 in any
single instance or related instances, or that otherwise are material to the
Company and its Subsidiaries, taken as a whole;

                  (k   the Company shall not, and shall not permit any of its
Subsidiaries to, make any tax election, or take any tax position, except in the
ordinary and usual course of business consistent with past practices;

                  (l   the Company shall not, and shall not permit any of its
Subsidiaries to, enter into any license with respect to Intellectual Property
unless such license is non-exclusive and entered into in the ordinary course
consistent with past practice or in accordance with existing contracts or other
agreements;

                  (m   the Company shall not, and shall not permit any of its
Subsidiaries to, fail to use reasonable business efforts to keep in full force
and effect insurance comparable in amount and scope of coverage to insurance now
carried by it; and

                  (n   the Company shall not, and shall not permit any of its
Subsidiaries to, agree to or make any commitment to, whether orally or in
writing, take any actions prohibited by this Agreement.


                                    ARTICLE 5

                              ADDITIONAL AGREEMENTS

         5.1      ACCESS TO INFORMATION.

                  (a Upon reasonable notice, the Company shall, and shall cause
each of its Subsidiaries to, afford access to the officers, employees,
accountants, counsel and other representatives of Newco (including financing
sources and their employees, accountants, counsel


                                       27

<PAGE>

and other representatives), during normal business hours during the period prior
to the Effective Time, to all of the Company's and its Subsidiaries' properties,
books, leases, contracts, commitments, officers, employees, accountants,
counsel, other representatives and records. The Confidentiality Agreements dated
as of January 12, 1999 and March 24, 1999 between WCAS and the Company and HCCP
and the Company, respectively (the "Confidentiality Agreements"), shall apply
with respect to information furnished thereunder or hereunder and any other
activities contemplated thereby or hereby.

                  (b   During the period prior to the Effective Time, the
Company shall, and shall cause each of its Subsidiaries to, promptly furnish to
Newco (i) a copy of each report, schedule, registration statement and other
document filed by it with the SEC, or received by it from the SEC, during such
period, and (ii) all other information concerning its business, properties and
personnel as Newco may reasonably request.

         5.2      NO SOLICITATION.

                  (a   From and after the date hereof, the Company will not, and
will not authorize or (to the extent within its control) permit any of its
officers, directors, employees, agents, affiliates and other representatives or
those of any of its Subsidiaries (collectively, "Company Representatives") to,
directly or indirectly, initiate, encourage or solicit (including by way of
providing information) any prospective acquiror or the invitation or submission
of any inquiries, proposals or offers or any other efforts or attempts that
constitute, or may reasonably be expected to lead to, any Company Acquisition
Proposal (as hereinafter defined) from any Person or engage in any negotiations
with respect thereto or otherwise cooperate with or assist or participate in, or
facilitate any such proposal; PROVIDED, HOWEVER, that, notwithstanding any other
provision of this Agreement, (i) the Company's Board of Directors may take and
disclose to the stockholders of the Company a position contemplated by Rules
14d-9 and 14e-2(a) promulgated under the Exchange Act and (ii) following receipt
from a third party, without any solicitation, encouragement or initiation,
directly or indirectly, by the Company or any Company Representative, of a bona
fide Company Acquisition Proposal, (x) the Company may engage in discussions or
negotiations with such third party and may furnish such third party information
concerning it, and its business, properties and assets if such third party
executes a confidentiality agreement in reasonably customary form and (y) the
Board of Directors of the Company may withdraw, modify or not make its
recommendation referred to in Section 5.11(b) or terminate this Agreement in
accordance with Article 7, but in each case referred to in the foregoing clauses
(i) and (ii), only to the extent that the Company's Board of Directors shall
conclude in good faith based on the advice of the Company's outside counsel that
such action is necessary in order for the Company's Board of Directors to act in
a manner that is consistent with its fiduciary duties under applicable Law.

                  (b   The Company shall immediately cease and cause to be
terminated any existing solicitation, initiation, encouragement, activity,
discussion or negotiation with any parties


                                       28

<PAGE>

conducted heretofore by the Company or any Company Representatives with respect
to any Company Acquisition Proposal existing on the date hereof.

                  (c   The Company will promptly (and in any event within 24
hours) communicate to Newco the terms and conditions of any Company Acquisition
Proposal that it may receive and will keep Newco informed, as promptly as
reasonably practicable, as to the status of any actions, including any
discussions, taken pursuant to such Company Acquisition Proposal.

                  (d   As used in this Agreement, "Company Acquisition Proposal"
means any inquiry, proposal or offer from any Person relating to any direct or
indirect acquisition or purchase of a business that constitutes one-third or
more of the net revenues, net income or assets of the Company and its
Subsidiaries, taken as a whole, or one-third or more of the outstanding Company
Common Stock, any tender offer or exchange offer that if consummated would
result in any Person beneficially owning one-third or more of the outstanding
Company Common Stock, or any merger, consolidation, business combination,
recapitalization, liquidation, dissolution or similar transaction involving the
Company (or any Subsidiary or Subsidiaries whose business constitutes one-third
or more of the net revenues, net income or assets of the Company and its
Subsidiaries taken as a whole), other than the transactions contemplated by this
Agreement.

         5.3      FEES AND EXPENSES.

                  (a   Except as otherwise provided in this Section 5.3 and
except with respect to claims for damages incurred as a result of a material
breach of this Agreement, all costs and expenses incurred in connection with
this Agreement and the transactions contemplated hereby shall be paid by the
party incurring such expense, except that the Company shall pay all costs and
expenses in connection with the printing and mailing of the Proxy Statement, as
well as all SEC filing fees related to the transactions contemplated hereby.

                  (b   In the event of the termination of this Agreement (i) by
Newco under Section 7.1(f), (ii) by the Company under Section 7.1(g) or (iii) by
Newco under Section 7.1(h) if, and only if (in the case of termination by Newco
under Section 7.1(h)) within 275 days after such termination, the Company enters
into a definitive agreement with respect to a transaction proposed in a Company
Acquisition Proposal that was submitted to the Company prior to the Company
Stockholder Meeting and thereafter consummates such transaction with 462 days
after such termination, then the Company shall (A) pay to Newco or its designee
(provided that Newco is not in material breach of its obligations under this
Agreement on the date of any such termination), a fee in the amount of
$25,000,000 (the "Company Termination Fee"), in cash, by wire transfer of
immediately available funds to an account designated by Newco and (B) reimburse
Newco for the documented out-of-pocket fees and expenses reasonably incurred
thereby in connection with this Agreement and the transactions contemplated
hereby (including those which may be incurred in connection with enforcing the
terms of this Section 5.3) in an aggregate amount not in excess of $4,000,000
(the "Expenses"). The Company shall pay the Company Termination Fee to Newco on
the day of


                                       29

<PAGE>

termination of this Agreement (or in the case of clause (iii) above, on the date
of consummation of such transaction). The Company shall reimburse the Expenses
to Newco concurrently with, or after the payment of the Company Termination Fee
but in no event prior to the delivery by Newco to the Company of a reasonably
detailed statement of the Expenses and any supporting documentation reasonably
requested by the Company.

         5.4      BROKERS OR FINDERS.

                  (a) The Company represents, as to itself, its Subsidiaries and
its affiliates, that no agent, broker, investment banker, financial advisor or
other firm or person is or will be entitled to any broker's or finders fee or
any other commission or similar fee in connection with any of the transactions
contemplated by this Agreement, except for the Financial Advisor, whose fees and
expenses will be paid by the Company in accordance with the Company's agreements
with such firm (copies of which have been delivered by the Company to Newco
prior to the date of this Agreement).

                  (b) Newco represents that no agent, broker, investment banker,
financial advisor or other firm or person engaged by Newco is or will be
entitled to receive from the Company any broker's or finders fee or any other
commission or similar fee in connection with any of the transactions
contemplated by this Agreement except as set forth on SCHEDULE 5.4(B).

         5.5      INDEMNIFICATION; DIRECTORS' AND OFFICERS' INSURANCE.

                  (a   Newco agrees that all rights to indemnification existing
in favor of the present or former directors, officers and employees of the
Company (as such) or any of its Subsidiaries or present or former directors,
officers and employees of the Company or any of its Subsidiaries serving or who
served at the Company's or any of its Subsidiaries' request as a director,
officer, employee or agent of another corporation, partnership, joint venture,
trust, employee benefit plan or other enterprise, as provided in the Company's
certificate of incorporation or bylaws, or the articles of incorporation, bylaws
or similar documents of any of the Company's Subsidiaries and the
indemnification agreements with such present and former directors, officers and
employees as in effect as of the date hereof with respect to matters occurring
at or prior to the Effective Time, shall survive the Merger and shall continue
in full force and effect and without modification (other than modifications
which would enlarge the indemnification rights) for a period of six years after
the Effective Time, and the Surviving Corporation shall comply fully with its
obligations hereunder and thereunder. Without limiting the foregoing, the
Company shall, and after the Effective Time, the Surviving Corporation shall
periodically advance expenses as incurred with respect to the foregoing
(including with respect to any action to enforce rights to indemnification or
the advancement of expenses) to the fullest extent permitted under applicable
Law; PROVIDED, HOWEVER, that the person to whom the expenses are advanced
provides an undertaking (without delivering a bond or other security) to repay
such advance if it is ultimately determined that such person is not entitled to
indemnification.


                                       30
<PAGE>
                  (b   The Company shall, and from and after the Effective Time,
the Surviving Corporation shall, for a period of six years after the Effective
Time, indemnify, defend and hold harmless each person who is now, or has been at
any time prior to the date of this Agreement or who becomes prior to the
Effective Time, an officer, director, employee or agent of the Company or any of
its Subsidiaries (collectively, the "Indemnified Parties") against all losses,
expenses (including attorneys' fees), claims, damages, liabilities or amounts
that are paid in settlement with the approval of the indemnifying party (which
approval shall not be unreasonably withheld) of, or otherwise in connection
with, any threatened or actual claim, action, suit, proceeding or investigation
(a "Claim"), based in whole or in part on or arising in whole or in part out of
the fact that the Indemnified Party (or the person controlled by the Indemnified
Party) is or was a director, officer, employee or agent of the Company or any of
its Subsidiaries and pertaining to any matter existing or arising out of actions
or omissions occurring at or prior to the Effective Time (including, without
limitation, any Claim arising out of this Agreement or any of the transactions
contemplated hereby), whether asserted or claimed prior to, at or after the
Effective Time, in each case to the fullest extent permitted under Delaware law,
and shall pay any expenses, as incurred, in advance of the final disposition of
any such action or proceeding to each Indemnified Party to the fullest extent
permitted under Delaware law. In determining whether an Indemnified Party is
entitled to indemnification under this Section 5.5, if requested by such
Indemnified Party, such determination shall be made by special, independent
counsel selected by the Surviving Corporation and approved by the Indemnified
Party (which approval shall not be unreasonably withheld), and who has not
otherwise performed services for the Surviving Corporation or its affiliates
within the last three years (other than in connection with such matters).
Without limiting the foregoing, in the event any such claim, action, suit,
proceeding or investigation is brought against any Indemnified Parties (whether
arising before or after the Effective Time), (i) the Indemnified Parties may
retain the Company's regularly engaged independent legal counsel or counsel
satisfactory to them and reasonably satisfactory to the Company (or satisfactory
to them and reasonably satisfactory to the Surviving Corporation after the
Effective Time), and the Company (or after the Effective Time, the Surviving
Corporation) shall pay all reasonable fees and expenses of such counsel for the
Indemnified Parties as promptly as statements therefor are received; and (ii)
the Company (or after the Effective Time, the Surviving Corporation) will use
all reasonable efforts to assist in the vigorous defense of any such matter,
provided that neither the Company nor the Surviving Corporation shall be liable
for any settlement effected without its prior written consent, which consent
shall not unreasonably be withheld. In the event of any Claim, any Indemnified
Party wishing to claim indemnification will promptly notify the Company (or
after the Effective Time, the Surviving Corporation) thereof (provided that
failure to so notify the Surviving Corporation will not affect the obligations
of the Surviving Corporation except to the extent that the Surviving Corporation
shall have been prejudiced as a result of such failure) and shall deliver to the
Company (or after the effective Time, the Surviving Corporation) the undertaking
contemplated by Section 145(e) of the DGCL, but without any requirement for the
posting of a bond. Without limiting the foregoing, in the event any such Claim
is brought against any of the Indemnified Parties, such Indemnified Parties may
retain only one law firm (plus one local counsel, if necessary) to represent
them with respect to each such matter unless the use of counsel chosen to
represent the Indemnified Parties would present such counsel with a conflict of
interest,


                                       31
<PAGE>

or the representation of all of the Indemnified Parties by the same counsel
would be inappropriate due to actual or potential differing interests between
them, in which case such additional counsel as may be required (as shall be
reasonably determined by the Indemnified Parties and the Company or the
Surviving Corporation, as the case may be) may be retained by the Indemnified
Parties at the cost and expense of the Company (or the Surviving Corporation)
and the Company (or the Surviving Corporation) shall pay all reasonable fees and
expenses of such counsel for such Indemnified Parties. The Company (or the
Surviving Corporation) shall use all reasonable efforts to assist in the
vigorous defense of any such Claim, provided that the Company (or the Surviving
Corporation) shall not be liable for any settlement effected without its written
consent, which consent, however, shall not be unreasonably withheld.
Notwithstanding the foregoing, nothing contained in this Section 5.5 shall be
deemed to grant any right to any Indemnified Party which is not permitted to be
granted to an officer, director, employee or agent of the Company under Delaware
law, assuming for such purposes that the Company's certificate of incorporation
and bylaws provide for the maximum indemnification permitted by law.

                  (c   For a period of six years after the Effective Time, the
Surviving Corporation shall maintain officers' and directors' liability
insurance and fiduciary liability insurance ("D&O Insurance") covering the
persons described in paragraph (a) of this Section 5.5 (whether or not they are
entitled to indemnification thereunder) who are currently covered by the
Company's existing officers' and directors' or fiduciary liability insurance
policies on terms no less advantageous to such indemnified parties than such
existing insurance; PROVIDED that the Surviving Corporation will not be required
to pay an annual premium therefor in excess of 200% of the last annual premium
paid prior to the date hereof (the "Current Premium"); and, PROVIDED, FURTHER,
that if the existing D&O Insurance expires, is terminated or canceled during the
six-year period, the Surviving Corporation will use reasonable efforts to obtain
as much D&O Insurance as can be obtained for the remainder of such period for a
premium on an annualized basis not in excess of 200% of the Current Premium.

                  (d   In the event the Surviving Corporation or any of its
respective successors or assigns (i) consolidates with or merges into any other
Person and is not the continuing or surviving corporation or entity of such
consolidation or merger or (ii) transfers all or substantially all of its
properties and assets to any Person, proper provisions shall be made so that
such Person assumes the obligations set forth in this Section 5.5.

                  (e   The Company will honor the indemnification agreements
identified in SCHEDULE 5.5(E). The Company may, with the consent of Newco, enter
into substantially similar indemnification agreements with other directors and
officers of the Company.

                  (f   This Section 5.5, which shall survive the consummation of
the Merger at the Effective Time and shall continue for the periods specified
herein, is intended to benefit the Company, the Surviving Corporation, and any
Person referenced in this Section 5.5 or indemnified hereunder each of whom may
enforce the provisions of this Section 5.5 (whether or not parties to this
Agreement).


                                       32
<PAGE>

         5.6      REASONABLE EFFORTS.

                  (a) Subject to the terms and conditions of this Agreement,
each of the parties hereto agrees to use all reasonable efforts to take, or
cause to be taken, all action and to do, or cause to be done, all things
necessary, proper or advisable, under applicable Laws or otherwise, to
consummate and make effective the transactions contemplated by this Agreement,
subject, if applicable, to the Company Stockholder Approval, including
cooperating fully with the other party or parties. The Company will use all
reasonable efforts to obtain any consent from third parties necessary to allow
the Company to continue operating its business as presently conducted as a
result of the consummation of the transactions contemplated hereby.

                  (b) In case at any time after the Effective Time, any further
action is necessary or desirable to carry out the purposes of this Agreement or
to vest the Surviving Corporation with full title to all properties, assets,
rights, approvals, immunities and franchises of the Company, the parties to this
Agreement shall direct their respective officers and directors to take all such
necessary action.

         5.7      PUBLICITY. The parties will consult with each other and will
mutually agree upon any press release or public announcement pertaining to the
Merger or this Agreement and shall not issue any such press release or make any
such public announcement prior to such consultation and agreement, except as may
be required by applicable law (or stock exchange rules), in which case the party
proposing to issue such press release or make such public announcement shall use
reasonable efforts to consult in good faith with the other party before issuing
any such press release or making any such public announcement.

         5.8      HSR AND OTHER GOVERNMENTAL APPROVALS.

                  (a   Each party hereto shall file or cause to be filed with
the Federal Trade Commission (the "FTC") and the Antitrust Division of the
Department of Justice (the "Antitrust Division") any notification required to be
filed by their respective "ultimate parent" companies under the HSR Act and the
rules and regulations promulgated thereunder with respect to the transactions
contemplated in this Agreement. Such parties will use all reasonable efforts to
make such filings promptly and to respond on a timely basis to any requests for
additional information made by either of such agencies. Each of the parties
hereto agrees to furnish the other with copies of all correspondence, filings
and communications (and memoranda setting forth the substance thereof) between
it and its affiliates and their respective representatives, on the one hand, and
the FTC, the Antitrust Division or any other Governmental Entity or members or
their respective staffs, on the other hand, with respect to the Merger, other
than personal financial information filed therewith.

                  (b   Each party hereto shall cooperate and use its reasonable
efforts to promptly prepare and file all necessary documentation to effect all
necessary applications, notices, petitions,


                                       33
<PAGE>

filings and other documents, and use all reasonable efforts to obtain (and will
cooperate with each other in obtaining) any consent, acquiescence,
authorization, order or approval of, or any exemption or nonopposition by, any
Governmental Entity required to be obtained or made by Newco or the Company or
any of their respective affiliates in connection with the Merger or the taking
of any other action contemplated by this Agreement; provided, however, that the
Company and its respective affiliates shall not be required to divest of any
assets in connection therewith.

                  (c   Each party hereto agrees to furnish the other with such
necessary information and reasonable assistance as such other party and its
affiliates may reasonably request in connection with their preparation of
necessary filings, registrations or submissions of information to any
Governmental Entities, including without limitation any filings necessary under
the provisions of the HSR Act.

                  (d   Without limiting the foregoing, the Company and its Board
of Directors shall (i) use their commercially reasonable efforts to take all
action necessary or otherwise reasonably requested by Newco to exempt the Merger
from the provisions of any applicable takeover, business combination, control
share acquisition or similar statute and (ii) if any state takeover statute or
similar statute or regulation becomes applicable to this Agreement or the
Merger, use its commercially reasonable efforts to take all action necessary to
ensure that the Merger may be consummated as promptly as practicable on the
terms contemplated by this Agreement and otherwise to minimize the effect of
such statute or regulation on the Merger.

         5.9      NOTIFICATION OF CERTAIN MATTERS. Each party shall give prompt
written notice to the other of (a) the occurrence, or failure to occur, of any
event of which it becomes aware that has caused or that would be likely to cause
any representation or warranty of such party contained in this Agreement to be
untrue or inaccurate in any material respect at any time from the date hereof to
the Closing Date and (b) the failure of such party to comply with or satisfy in
any material respect any covenant, condition or agreement to be complied with or
satisfied by it hereunder; provided, however, that the delivery of any notice
pursuant to this Section 5.9 shall not limit or otherwise affect the remedies
available hereunder to any of the party or parties receiving such notice.

         5.10     CONTINUATION OF EMPLOYEE BENEFITS.

                  (a   From and after the Effective Time, the Surviving
Corporation and its Subsidiaries will honor in accordance with their terms all
existing employment, severance, consulting and salary continuation agreements
between the Company or any of its Subsidiaries and any current or former
officer, director, employee or consultant of the Company or any of its
Subsidiaries or group of such officers, directors, employees or consultants
described on SCHEDULE 5.10.

                  (b   In addition to honoring the agreements referred to in
SCHEDULE 5.10, until the first anniversary of the Effective Time, the Surviving
Corporation will not materially alter the


                                       34

<PAGE>

benefits (including health benefits, severance policies and general employment
policies and procedures) that are available to employees of the Company and its
Subsidiaries on the date hereof. Nothing in this Section 5.10(b) shall be deemed
to prevent the Surviving Corporation or any of its Subsidiaries from making any
change required by applicable Law.

                  (c   To the extent permitted under applicable Law, each
employee of the Company or its Subsidiaries shall be given credit for all
service with the Company or its Subsidiaries (or service credited by the Company
or its Subsidiaries) under all employee benefit plans, programs, policies and
arrangements maintained by the Surviving Corporation in which they participate
or in which they become participants for purposes of eligibility, vesting and
benefit accrual including, without limitation, for purposes of determining (i)
short-term and long-term disability benefits, (ii severance benefits, (iii)
vacation benefits and (iv) benefits under any retirement plan.

                  (d   This Section 5.10, which shall survive the consummation
of the Merger at the Effective Time and shall continue without limit except as
expressly set forth herein, is intended to benefit and bind the Company, the
Surviving Corporation and any Person referenced in this Section 5.10, each of
whom may enforce the provisions of this Section 5.10 whether or not parties to
this Agreement. Except as provided in clause (a) above, nothing contained in
this Section 5.10 shall create any beneficiary rights in any employee or former
employee (including any dependent thereof) of the Company, any of its
Subsidiaries or the Surviving Corporation in respect of continued employment for
any specified period of any nature or kind whatsoever.

         5.11     PREPARATION OF THE PROXY STATEMENT; STOCKHOLDERS MEETING.

                  (a   As soon as practicable following the date of this
Agreement, the Company shall prepare the Proxy Statement, and the Company shall
prepare and file with the SEC the Proxy Statement. Newco will cooperate with the
Company in connection with the preparation of the Proxy Statement including, but
not limited to, furnishing to the Company any and all information regarding
Newco and its affiliates as may be required to be disclosed therein. The Company
will use its commercially reasonable efforts to cause the Proxy Statement to be
mailed to its stockholders as promptly as practicable after the date of this
Agreement. The Company and Newco agree to correct any information provided by it
for use in the Proxy Statement which shall have become false or misleading. The
Company will as promptly as practicable notify Newco of (i) the receipt of any
comments from the SEC and (ii) any request by the SEC for any amendment to the
Proxy Statement or for additional information.

                  (b   The Company will, as soon as practicable following the
date of this Agreement, duly call, give notice of, convene and hold the
Stockholders Meeting for the purpose of adopting this Agreement and approving
the Merger. At the Stockholders Meeting, Newco shall cause all of the shares of
Company Common Stock then owned by Newco or any of its affiliates to be voted in
favor of the adoption of this Agreement and the approval of the Merger. The
Company will, through its Board of Directors, recommend to its stockholders
approval of the foregoing


                                       35
<PAGE>

matters, as set forth in, and subject to, Section 3.1(p). Such recommendation,
together with a copy of the opinion referred to in Section 3.1(m), shall be
included in the Proxy Statement.

         5.12     SOLVENCY LETTER.

                  Prior to the Effective Time, Newco shall cause the valuation
firm which delivers a solvency letter (the "Solvency Letter") to the financial
institutions providing the Financing Commitments (or, if no Solvency Letter has
been provided thereto, a valuation firm reasonably acceptable to the Company) to
have delivered to the Company a Solvency Letter addressed to the Board of
Directors in form and substance reasonably acceptable thereto as to the solvency
of the Surviving Corporation after giving effect to the Merger, the financing
arrangements contemplated by Newco with respect to the Merger and the other
transactions contemplated hereby (the "Solvency Letter Condition"). The parties
hereto agree to cooperate with the firm delivering the Solvency Letter (the
"Appraiser") in connection with the preparation of the Solvency Letter,
including, without limitation, providing the Appraiser with any information
reasonably available to them necessary for the Appraiser's preparation of the
Solvency Letter.

         5.13     RECAPITALIZATION. Each of the Company and Newco shall use all
reasonable efforts to cause the transactions contemplated by this Agreement,
including the Merger, to be accounted for as a recapitalization and such
accounting treatment to be accepted by their respective accountants and by the
SEC, and each of the Company and Newco agrees that it shall take no action that
would reasonably be likely to cause such accounting treatment not to be
obtained. In the event that Newco reasonably determines that it cannot account
for the transactions contemplated by this Agreement as a recapitalization, the
parties shall take all commercially reasonable actions to amend this Agreement
to provide that not more than 7% of the outstanding Company Common Stock after
giving effect to the transactions contemplated hereby shall be retained by the
existing stockholders of the Company, substantially on the terms and conditions
set forth in the Original Merger Agreement. The terms of this Agreement shall
continue in effect in such amendment to the extent consistent with the revised
transaction structure. Any terms required to be revised to accommodate such
revised structure shall be reasonably acceptable to both parties hereto.

         5.14     OTHER ACTIONS. Except as expressly permitted by the terms of
this Agreement, no party hereto will knowingly or intentionally take or agree or
commit to take, nor will it permit any of its Subsidiaries to take or agree or
commit to take, any action that is reasonably likely to result in any of its
representations or warranties hereunder being untrue in any material respect.


                                       36
<PAGE>

                                    ARTICLE 6

                              CONDITIONS PRECEDENT

         6.1      CONDITIONS TO EACH PARTY'S OBLIGATION TO EFFECT THE MERGER.
The respective obligations of each party to effect the Merger shall be subject
to the satisfaction or waiver, where permissible, by each party hereto prior to
the Effective Time of the following conditions:

                  (a   STOCKHOLDER APPROVAL. This Agreement shall have been
adopted by the affirmative vote of the holders of a majority of the outstanding
shares of Company Common Stock entitled to vote thereon; provided that Newco
shall, and shall cause its affiliates to, vote all shares of Company Common
Stock owned by Newco or any of its affiliates in favor of the adoption of this
Agreement.

                  (b   HSR ACT AND OTHER APPROVALS. The waiting period (and any
extension thereof) applicable to the Merger under the HSR Act shall have been
terminated or shall have expired, the approvals listed on Schedule 3.1(c)(iii)
shall have been obtained and no restrictive order or other requirements shall
have been placed on the Company, Newco or the Surviving Corporation in
connection therewith.

                  (c   NO INJUNCTIONS OR RESTRAINTS. No temporary restraining
order, preliminary or permanent injunction or other order issued by any court of
competent jurisdiction or other legal restraint or prohibition (an "Injunction")
preventing the consummation of the Merger shall be in effect; provided, however,
that prior to invoking this condition, each party shall use all reasonable
efforts to have any such Injunction vacated.

                  (d   STATUTES. No statute, rule, order, decree or regulation
shall have been enacted, promulgated or otherwise issued by any Governmental
Entity which prohibits the consummation of the Merger.

         6.2      CONDITIONS TO OBLIGATIONS OF NEWCO. The obligations of Newco
to effect the Merger are further subject to the following conditions, any or all
of which may be waived in whole or in part by Newco, to the extent permitted by
applicable Law:

                  (a   the representations and warranties of the Company set
forth in this Agreement shall be true and correct in all material respects
(provided that any representation or warranty of the Company contained herein
that is subject to a materiality, Material Adverse Effect or similar
qualification shall not be so qualified for purposes of determining the
existence of any breach thereof on the part of the Company) as of the date of
this Agreement and as of the Closing Date as though made on and as of the
Closing Date and Newco shall have received a certificate signed on behalf of the
Company by the chief executive officer and the chief financial officer of the
Company to the effect set forth in this paragraph;

                  (b   the Company shall have performed the obligations required
to be performed by it under this Agreement at or prior to the Closing Date
except for such failures to perform as have not had or could not reasonably be
expected, either individually or in the aggregate, to have a


                                       37

<PAGE>

Material Adverse Effect on the Surviving Corporation (provided that any
obligation the performance of which is subject to a materiality, Material
Adverse Effect or similar qualification shall not be so qualified for purposes
of determining the existence of any nonperformance thereof) and Newco shall have
received a certificate signed on behalf of the Company by the chief executive
officer and the chief financial officer of the Company to the effect set forth
in this paragraph; and

                  (c   Newco shall have obtained the Financing substantially on
the terms contemplated by the Financing Commitments or alternative financing on
terms no less favorable in any material respect than those set forth in the
Financing Commitments, unless the failure to obtain the Financing was the result
of a failure by Newco to perform any covenant or condition contained therein or
herein or the inaccuracy of any representation or warranty of Newco.

         6.3      CONDITIONS TO OBLIGATION OF THE COMPANY. The obligation of the
Company to effect the Merger is further subject to the following conditions, any
or all of which may be waived in whole or in part by the Company, to the extent
permitted by applicable Law:

                  (a   the representations and warranties of Newco set forth in
this Agreement shall be true and correct in all material respects (provided that
any representation or warranty of Newco contained herein that is subject to a
materiality, Material Adverse Effect or similar qualification shall not be so
qualified for purposes of determining the existence of any breach thereof on the
part of Newco) as of the date of this Agreement and as of the Closing Date as
though made on and as of the Closing Date and the Company shall have received a
certificate signed on behalf of Newco by the president of Newco to the effect
set forth in this paragraph;

                  (b   Newco shall have performed the obligations required to be
performed by it under this Agreement at or prior to the Closing Date except for
such failures to perform as have not had or could not reasonably be expected,
either individually or in the aggregate, to have a Material Adverse Effect on
the Surviving Corporation (provided that any obligation the performance of which
is subject to a materiality, Material Adverse Effect or similar qualification
shall not be so qualified for purposes of determining the existence of any
nonperformance thereof) and the Company shall have received a certificate signed
on behalf of Newco by the president of Newco to the effect set forth in this
paragraph;

                  (c   the Solvency Letter Condition; and

                  (d   Newco shall have obtained the Financing substantially on
the terms contemplated by the Financing Commitments or alternative financing on
terms no less favorable in any material respect than those set forth in the
Financing Commitments.


                                       38
<PAGE>

                                    ARTICLE 7

                            TERMINATION AND AMENDMENT

         7.1      TERMINATION. This Agreement may be terminated and the Merger
may be abandoned at any time prior to the Effective Time, whether before or
after adoption of this Agreement by the stockholders of the Company:

                  (a   by mutual written consent of the Company and Newco;

                  (b   by Newco or the Company if any court of competent
jurisdiction in the United States or other Governmental Entity shall have issued
an order, decree or ruling, or taken any other action restraining, enjoining or
otherwise prohibiting the Merger and such order, decree, ruling or other action
shall have become final and non-appealable;

                  (c   by Newco or the Company if the Effective Time shall not
have occurred on or before August 31, 1999 (the "Termination Date"), provided
that the right to terminate this Agreement under this Section 7.1(c) 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 Effective Time to occur
on or before such date;

                  (d  by Newco, if (i) any of the representations and warranties
of the Company contained in this Agreement shall fail to be true and correct in
any material respect when made or have since become, and at the time of
termination remain, untrue or incorrect in any material respect, or (ii) the
Company shall have breached or failed to comply in any material respect with any
of its obligations under this Agreement (other than as a result of a breach by
Newco of any of its obligations under this Agreement) and such failure or breach
with respect to any such representation, warranty or obligation shall continue
unremedied for ten days after the Company has received written notice from Newco
of the occurrence of such failure or breach (provided that in no event shall
such ten-day period extend beyond the Termination Date);

                  (e   by the Company if (i) any of the representations and
warranties of Newco contained in this Agreement shall fail to be true and
correct in any material respect when made or have since become, and at the time
of termination remain, untrue or incorrect in any material respect, or (ii)
Newco shall have breached or failed to comply in any material respect with any
of its obligations under this Agreement (other than as a result of a breach by
the Company of any of its obligations under this Agreement) and such failure or
breach with respect to any such representation, warranty or obligation shall
continue unremedied for ten days after Newco has received written notice from
the Company of the occurrence of such failure or breach (provided that in no
event shall such ten-day period extend beyond the Termination Date);

                  (f   by Newco if the Board of Directors of the Company shall
have withdrawn or modified, in any manner which is materially adverse to Newco,
its recommendation or approval of this Agreement and the Merger;


                                       39

<PAGE>
                  (g   by the Company, if in the exercise of its good faith
judgment as to fiduciary duties to its stockholders imposed by law, as advised
by outside counsel, the Board of Directors of the Company determines that such
termination is required by reason of a Company Acquisition Proposal being made;
provided that the Company shall notify Newco promptly of its intention to
terminate this Agreement or enter into a definitive agreement with respect to
any Company Acquisition Proposal, and provided further that the Company may not
effect such termination pursuant to this Section 7.1(g) unless the Company has
contemporaneously with such termination tendered payment to Newco, or its
designee, of the Company Termination Fee pursuant to Section 5.3; and

                  (h   by Newco or the Company if the Company fails to obtain
the Company Stockholder Approval at the Stockholder Meeting (or any adjournment
thereof).

         7.2      EFFECT OF TERMINATION. In the event of termination of this
Agreement by any party hereto as provided in Section 7.1, this Agreement shall
forthwith become void and there shall be no liability or obligation hereunder on
the part of any party hereto or their respective affiliates, officers, directors
or stockholders, except (a) the last sentence of Section 5.1(a), Section 5.3,
this Section 7.2 and Article 8 shall survive such termination, and (b) no such
termination shall relieve any party from liability for a breach of any term or
provision hereof. The Confidentiality Agreements shall remain in full force and
effect following any termination of this Agreement.

         7.3      AMENDMENT. This Agreement may be amended, modified or
supplemented, only by written agreement of Newco and the Company at any time
prior to the Effective Time with respect to any of the terms contained herein;
provided, however, that, after the Company Stockholder Approval, no term or
condition contained in this Agreement shall be amended or modified in any manner
that by Law requires further approval by the stockholders of the Company without
so obtaining such further stockholder approval.

         7.4      EXTENSION; WAIVER. At any time prior to the Effective Time,
the parties hereto, by action taken or authorized by their respective Boards of
Directors, may, to the extent legally allowed (a extend the time for the
performance of any of the obligations or other acts of the other parties hereto,
(b) waive any inaccuracies in the representations and warranties contained
herein or in any document delivered pursuant hereto and (c) waive compliance
with any of the agreements or conditions contained herein. Any agreement on the
part of a party hereto to any such extension or waiver shall be valid only if
set forth in a written instrument signed on behalf of such party. The failure of
any party hereto to assert any of its rights hereunder shall not constitute a
waiver of such rights.



                                       40
<PAGE>

                                    ARTICLE 8

                               GENERAL PROVISIONS

         8.1      NONSURVIVAL OF COVENANTS AND AGREEMENTS. None of the
representations, warranties, covenants and agreements in this Agreement or in
any instrument delivered pursuant to this Agreement shall survive the Effective
Time, except for the covenants and agreements contained in Article 2, Section
5.3, Section 5.5, Section 5.10 and any other covenant or agreement that
contemplates performance after the Effective Time.

         8.2      CONFIDENTIALITY AGREEMENTS. The Confidentiality Agreements
shall survive the execution and delivery of this Agreement or any termination of
this Agreement, and the provisions of the Confidentiality Agreements shall apply
to all information and material delivered by any party hereunder.

         8.3      NOTICES. Any notice or communication required or permitted
hereunder shall be in writing and either delivered personally, delivered by
nationally recognized overnight courier or telecopied or sent by certified or
registered mail, postage prepaid, and shall be deemed to be given, dated and
received when so delivered personally, delivered by nationally recognized
overnight courier or telecopied or, if mailed, five business days after the date
of mailing to the following address or telecopy number, or to such other address
or addresses as such person may subsequently designate by notice given
hereunder:

                  (a       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 10022-6815
                           Attn:  Paul B. Queally
                           Facsimile:  212/893-9566

                           with copies to:

                           Reboul, MacMurray, Hewitt, Maynard & Kristol
                           45 Rockefeller Plaza
                           New York, New York  10111
                           Attn:  Robert A. Schwed
                           Facsimile:  212/841-5725

                  (b       if to the Company, to:

                           Concentra Managed Care, Inc.
                           5080 Spectrum Drive, Suite 400, West Tower
                           Addison, Texas  75248
                           Attn:  Richard A. Parr II
                           Facsimile:  972/387-1938


                                       41
<PAGE>
                           and

                           Concentra Managed Care, Inc.
                           312 Union Wharf
                           Boston, Massachusetts  02109
                           Attn:  Daniel J. Thomas
                           Facsimile:  617/367-8519

                           with a copy to:

                           Vinson & Elkins L.L.P.
                           2001 Ross Avenue, Suite 3700
                           Dallas, Texas  75201
                           Attn:  Jeffrey A. Chapman
                           Facsimile:  214/999-7797

                  (c       if to the Special Committee, to:

                           Hon. Willis D. Gradison
                           Patton Boggs LLP
                           2550 M Street, N.W.
                           Washington, D.C.  20037-1350
                           Facsimile:  202/457-8315

                           and

                           George H. Conrades
                           Polaris Venture Partners
                           1000 Winter St., Suite 3350
                           Waltham, Massachusetts  02451
                           Facsimile:  781/290-0880

                           with a copy to:

                           Ropes & Gray
                           One International Place
                           Boston, Massachusetts  02110
                           Attn:  David C. Chapin
                           Facsimile:  617/951-7050


                                       42

<PAGE>
         8.4      INTERPRETATION. When a reference is made in this Agreement to
Articles or Sections, such reference shall be to an Article or Section of this
Agreement unless otherwise indicated. The table of contents and headings
contained in this Agreement are for reference purposes only and shall not affect
in any way the meaning or interpretation of this Agreement. Whenever the word
"include," "includes" or "including" are used in this Agreement, they shall be
deemed to be followed by the words "without limitation." The phrase "made
available" in this Agreement shall mean that the information referred to has
been made available if requested by the party to whom such information is made
available.

         8.5      COUNTERPARTS. This Agreement may be executed in two
counterparts, each of which shall be considered one and the same agreement and
shall become effective when two counterparts have been signed by each of the
parties and delivered to the other party, it being understood that both parties
need not sign the same counterpart.

         8.6      ENTIRE AGREEMENT; NO THIRD PARTY BENEFICIARIES. This Agreement
(together with the Confidentiality Agreement and any other documents and
instruments referred to herein) constitutes the entire agreement and supersedes
all prior agreements and understandings, both written and oral, between the
parties hereto with respect to the subject matter hereof. This Agreement shall
be binding upon and inure solely to the benefit of each party hereto, and,
except as provided in Section 5.5 and Section 5.10, nothing in this Agreement,
express or implied, is intended to or shall confer upon any other Person any
other right, benefit or remedy of any nature whatsoever under or by reason of
this Agreement.

         8.7      GOVERNING LAW. This Agreement shall be governed and construed
in accordance with the laws of the State of Delaware, without giving effect to
the principles of conflicts of law thereof.

         8.8      ASSIGNMENT. Neither this Agreement nor any of the rights,
interests or obligations hereunder shall be assigned by any of the parties
hereto (whether by operation of law or otherwise) without the prior written
consent of the other parties. Any assignment in violation of the foregoing shall
be null and void. This Agreement will be binding upon, inure to the benefit of
and be enforceable by the parties hereto and their respective successors and
permitted assigns.

         8.9      EFFECTIVENESS. This Agreement shall not become effective until
such time as this Agreement has been executed and delivered by each of the
parties thereto.

         8.10     REFERENCE; NO WAIVER. Any reference in this Agreement to the
"date hereof," the "date of this Agreement" or the "date of execution of this
Agreement" shall be deemed to refer to March 2, 1999, the date of the Original
Merger Agreement, but any reference to the "date of this Amended and Restated
Agreement" or the "date of execution of this Amended and Restated Agreement"
shall refer to the date first written above. The parties' execution and delivery
of this


                                       43

<PAGE>

Agreement shall not constitute a waiver of any rights that either of the
parties hereto may have by reason of any event, condition, misrepresentation or
breach of covenant of the Original Merger Agreement having occurred prior to the
date of execution and delivery of this Agreement whether or not known to any or
all of the parties hereto.


               [THE REMAINDER OF THIS PAGE IS INTENTIONALLY BLANK]







                                       44
<PAGE>
         IN WITNESS WHEREOF, the parties hereto have caused this Amended and
Restated Agreement and Plan of Merger to be signed by their respective officers
thereunto duly authorized as of March 24, 1999.

                                     NEWCO:

                                     YANKEE ACQUISITION CORP.

                                     By:

                                                    Paul B. Queally
                                                    President


                                     COMPANY:

                                     CONCENTRA MANAGED CARE, INC.

                                     By:

                                                     Daniel J. Thomas
                                                     President and Chief
                                                     Executive Officer


<PAGE>
                                                                      APPENDIX B




                   [LETTERHEAD OF BT ALEX. BROWN INCORPORATED]



                                  March 2, 1999



Board of Directors and
  Special Committee of the Board of Directors
Concentra Managed Care, Inc.
312 Union Wharf
Boston, Massachusetts  02105

Members of the Board and Special Committee:

         BT Alex. Brown Incorporated ("BT Alex. Brown") has acted as financial
advisor to Concentra Managed Care, Inc. ("Concentra") in connection with the
proposed transaction involving Concentra and Welsh, Carson, Anderson & Stowe
VIII, L.P. ("Welsh Carson") pursuant to the Agreement and Plan of Merger, dated
as of March 2, 1999 (the "Merger Agreement"), between Yankee Acquisition Corp.,
a wholly owned subsidiary of Welsh Carson ("Newco"), and Concentra, which
provides, among other things, for the merger of Newco with and into Concentra
(the "Merger"). As set forth more fully in the Merger Agreement, as a result of
the Merger, each outstanding share of the common stock, par value $0.01 per
share, of Concentra (the "Concentra Common Stock") will be converted into either
(i) the right to retain, at the election of the holder thereof, one share of
Concentra Common Stock (the "Stock Consideration") or (ii) the right to receive
$16.50 in cash (the "Cash Consideration" and, together with the Stock
Consideration, the "Merger Consideration"), subject to certain proration
procedures (as to which we express no opinion) more fully specified in the
Merger Agreement. The Merger Agreement provides that the aggregate number of
shares of Concentra Common Stock to be converted into the Stock Consideration at
the effective time of the Merger will be 1,854,500. The Merger Agreement further
provides for the possible restructuring of the Merger in order to achieve
recapitalization accounting treatment as a merger in which each share of
Concentra Common Stock outstanding immediately prior to the effective time of
the Merger would be converted into the right to receive only the Cash
Consideration.

         You have requested BT Alex. Brown's opinion as to the fairness, from a
financial point of view, of the Merger Consideration to the holders of Concentra
Common Stock (other than Welsh Carson or its affiliates).

         In connection with BT Alex. Brown's role as financial advisor to
Concentra, and in arriving at its opinion, BT Alex. Brown has reviewed certain
publicly available financial and other information concerning Concentra and
certain internal analyses and other information furnished to or discussed with
it by Concentra and its advisors. BT Alex. Brown has also held discussions with
members of the senior management of Concentra and Welsh Carson regarding the
business and prospects of Concentra. In addition, BT Alex. Brown has (i)
reviewed the reported prices and trading activity for Concentra Common Stock,
(ii) compared certain financial and stock market information for Concentra with


                                      B-1

<PAGE>
Board of Directors and
  Special Committee of the Board of Directors
Concentra Managed Care, Inc.
March 2, 1999
Page 2



similar information for certain other companies whose securities are publicly
traded, (iii) reviewed the financial terms of certain recent business
combinations which it deemed comparable in whole or in part, (iv) reviewed the
terms of the Merger Agreement, and (v) performed such other studies and analyses
and considered such other factors as it deemed appropriate. In connection with
its engagement, BT Alex. Brown was authorized to approach, and held discussions
with, certain third parties to solicit indications of interest with respect to
the acquisition of Concentra.

         BT Alex. Brown has not assumed responsibility for independent
verification of, and has not independently verified, any information, whether
publicly available or furnished to it, concerning Concentra or the pro forma
company, including, without limitation, any financial information, forecasts or
projections considered in connection with the rendering of its opinion.
Accordingly, for purposes of its opinion, BT Alex. Brown has assumed and relied
upon the accuracy and completeness of all such information and BT Alex. Brown
has not conducted a physical inspection of any of the properties or assets, and
has not prepared or obtained any independent evaluation or appraisal of any of
the assets or liabilities, of Concentra. With respect to the financial forecasts
and projections made available to BT Alex. Brown and used in its analyses, BT
Alex. Brown has assumed that they have been prepared on bases reflecting
reasonable estimates and judgments as to the matters covered thereby. In
rendering its opinion, BT Alex. Brown expresses no view as to the reasonableness
of such forecasts and projections or the assumptions on which they are based. BT
Alex. Brown's opinion is necessarily based upon economic, market and other
conditions as in effect on, and the information made available to it as of, the
date hereof.

         For purposes of rendering its opinion, BT Alex. Brown has assumed that,
in all respects material to its analysis, the representations and warranties of
Concentra and Newco contained in the Merger Agreement are true and correct,
Concentra and Newco will each perform all of the covenants and agreements to be
performed by it under the Merger Agreement and all conditions to the obligations
of each of Concentra and Newco to consummate the Merger will be satisfied
without any waiver thereof. BT Alex. Brown has also assumed that all material
governmental, regulatory or other approvals and consents required in connection
with the consummation of the Merger will be obtained and that in connection with
obtaining any necessary governmental, regulatory or other approvals and
consents, or any amendments, modifications or waivers to any agreements,
instruments or orders to which either Concentra or Newco is a party or is
subject or by which it is bound, no limitations, restrictions or conditions will
be imposed or amendments, modifications or waivers made that would have a
material adverse effect on Concentra or materially reduce the contemplated
benefits of the Merger to Concentra. In addition, you have informed BT Alex.
Brown, and accordingly for purposes of rendering its opinion BT Alex. Brown has
assumed, that the Merger will be recorded as a recapitalization for financial
reporting purposes. BT Alex. Brown is expressing no opinion as to the price at
which the Concentra Common Stock will trade at any time.

         This opinion is addressed to, and for the use and benefit of, the Board
of Directors and the Special Committee of the Board of Directors of Concentra
and is not a recommendation to any stockholder as to the form of Merger
Consideration to be elected by such stockholder or how such stockholder should
vote with respect to matters relating to the proposed Merger. This opinion is
limited to the fairness, from a financial point of view, of the Merger
Consideration to the holders of Concentra Common Stock (other than Welsh Carson
or its affiliates), and BT Alex. Brown expresses no opinion as to the merits of
the underlying decision by Concentra to engage in the Merger.

         BT Alex. Brown, as a customary part of its investment banking business,
is engaged in the valuation of businesses and their securities in connection
with mergers and acquisitions, negotiated underwritings, private placements

                                      B-2

<PAGE>
Board of Directors and
  Special Committee of the Board of Directors
Concentra Managed Care, Inc.
March 2, 1999
Page 3



and valuations for estate, corporate and other purposes. We have acted as
financial advisor to Concentra in connection with the Merger and will receive a
fee for our services, a significant portion of which is contingent upon the
consummation of the Merger and a portion of which is payable upon delivery of
this opinion. BT Alex. Brown and its affiliates have in the past provided
financial services to Concentra and Welsh Carson unrelated to the proposed
Merger, for which services BT Alex. Brown and its affiliates have received
compensation. BT Alex. Brown maintains a market in Concentra Common Stock and
regularly publishes research reports regarding the businesses and securities of
Concentra and other publicly traded companies in the healthcare industry. In the
ordinary course of business, BT Alex. Brown and its affiliates may actively
trade or hold the securities and other instruments and obligations of Concentra
for their own account and for the accounts of customers and, accordingly, may at
any time hold a long or short position in such securities, instruments or
obligations.

         Based upon and subject to the foregoing, it is BT Alex. Brown's opinion
that, as of the date of this letter, the Merger Consideration is fair, from a
financial point of view, to the holders of Concentra Common Stock (other than
Welsh Carson or its affiliates).

                                                     Very truly yours,

                                                     BT ALEX. BROWN INCORPORATED



                                      B-3
<PAGE>

                                                                      APPENDIX C



               SECTION 262 OF THE DELAWARE GENERAL CORPORATION LAW

SS. 262.  APPRAISAL RIGHTS.

         (a) Any stockholder of a corporation of this State who holds shares of
stock on the date of the making of a demand pursuant to subsection (d) of this
section with respect to such shares, who continuously holds such shares through
the effective date of the merger or consolidation, who has otherwise complied
with subsection (d) of this section and who has neither voted in favor of the
merger or consolidation nor consented thereto in writing pursuant to ss.228 of
this title shall be entitled to an appraisal by the Court of Chancery of the
fair value of the stockholder's shares of stock under the circumstances
described in subsections (b) and (c) of this section. As used in this section,
the word "stockholder" means a holder of record of stock in a stock corporation
and also a member of record of a nonstock corporation; the words "stock" and
"share" mean and include what is ordinarily meant by those words and also
membership or membership interest of a member of a nonstock corporation; and the
words "depository receipt" mean a receipt or other instrument issued by a
depository representing an interest in one or more shares, or fractions thereof,
solely of stock of a corporation, which stock is deposited with the depository.

         (b) Appraisal rights shall be available for the shares of any class or
series of stock of a constituent corporation in a merger or consolidation to be
effected pursuant to ss.251 (other than a merger effected pursuant to ss.251(g)
of this title), ss.252, ss.254, ss.257, ss.258, ss.263 or ss.264 of this title:

                  (1) Provided, however, that no appraisal rights under this
         section shall be available for the shares of any class or series of
         stock, which stock, or depository receipts in respect thereof, at the
         record date fixed to determine the stockholders entitled to receive
         notice of and to vote at the meeting of stockholders to act upon the
         agreement of merger or consolidation, were either (i) listed on a
         national securities exchange or designated as a national market system
         security on an interdealer quotation system by the National Association
         of Securities Dealers, Inc. or (ii) held of record by more than 2,000
         holders; and further provided that no appraisal rights shall be
         available for any shares of stock of the constituent corporation
         surviving a merger if the merger did not require for its approval the
         vote of the stockholders of the surviving corporation as provided in
         subsection (f) of ss.251 of this title.

                  (2) Notwithstanding paragraph (1) of this subsection,
         appraisal rights under this section shall be available for the shares
         of any class or series of stock of a constituent corporation if the
         holders thereof are required by the terms of an agreement of merger or
         consolidation pursuant to ss.ss.251, 252, 254, 257, 258, 263 and 264 of
         this title to accept for such stock anything except:

                           a. Shares of stock of the corporation surviving or
                  resulting from such merger or consolidation, or depository
                  receipts in respect thereof;

                           b. Shares of stock of any other corporation, or
                  depository receipts in respect thereof, which shares of stock
                  (or depository receipts in respect thereof) or depository
                  receipts at the effective date of the merger or consolidation
                  will be either listed on a national securities exchange or
                  designated as a national market system security on an
                  interdealer quotation system by the National Association of
                  Securities Dealers, Inc. or held of record by more than 2,000
                  holders;

                           c. Cash in lieu of fractional shares or fractional
                  depository receipts described in the foregoing subparagraphs
                  a. and b. of this paragraph; or



                                      C-1
<PAGE>

                           d. Any combination of the shares of stock, depository
                  receipts and cash in lieu of fractional shares or fractional
                  depository receipts described in the foregoing subparagraphs
                  a., b. and c. of this paragraph.

                  (3) In the event all of the stock of a subsidiary Delaware
         corporation party to a merger effected under ss.253 of this title is
         not owned by the parent corporation immediately prior to the merger,
         appraisal rights shall be available for the shares of the subsidiary
         Delaware corporation.

         (c) Any corporation may provide in its certificate of incorporation
that appraisal rights under this section shall be available for the shares of
any class or series of its stock as a result of an amendment to its certificate
of incorporation, any merger or consolidation in which the corporation is a
constituent corporation or the sale of all or substantially all of the assets of
the corporation. If the certificate of incorporation contains such a provision,
the procedures of this section, including those set forth in subsections (d) and
(e) of this section, shall apply as nearly as is practicable.

         (d) Appraisal rights shall be perfected as follows:

                  (1) If a proposed merger or consolidation for which appraisal
         rights are provided under this section is to be submitted for approval
         at a meeting of stockholders, the corporation, not less than 20 days
         prior to the meeting, shall notify each of its stockholders who was
         such on the record date for such meeting with respect to shares for
         which appraisal rights are available pursuant to subsections (b) or (c)
         hereof that appraisal rights are available for any or all of the shares
         of the constituent corporations, and shall include in such notice a
         copy of this section. Each stockholder electing to demand the appraisal
         of such stockholder's shares shall deliver to the corporation, before
         the taking of the vote on the merger or consolidation, a written demand
         for appraisal of such stockholder's shares. Such demand will be
         sufficient if it reasonably informs the corporation of the identity of
         the stockholder and that the stockholder intends thereby to demand the
         appraisal of such stockholder's shares. A proxy or vote against the
         merger or consolidation shall not constitute such a demand. A
         stockholder electing to take such action must do so by a separate
         written demand as herein provided. Within 10 days after the effective
         date of such merger or consolidation, the surviving or resulting
         corporation shall notify each stockholder of each constituent
         corporation who has complied with this subsection and has not voted in
         favor of or consented to the merger or consolidation of the date that
         the merger or consolidation has become effective; or

                  (2) If the merger or consolidation was approved pursuant to
         ss.228 or ss.253 of this title, each constituent corporation, either
         before the effective date of the merger or consolidation or within ten
         days thereafter, shall notify each of the holders of any class or
         series of stock of such constituent corporation who are entitled to
         appraisal rights of the approval of the merger or consolidation and
         that appraisal rights are available for any or all shares of such class
         or series of stock of such constituent corporation, and shall include
         in such notice a copy of this section; provided that, if the notice is
         given on or after the effective date of the merger or consolidation,
         such notice shall be given by the surviving or resulting corporation to
         all such holders of any class or series of stock of a constituent
         corporation that are entitled to appraisal rights. Such notice may,
         and, if given on or after the effective date of the merger or
         consolidation, shall, also notify such stockholders of the effective
         date of the merger or consolidation. Any stockholder entitled to
         appraisal rights may, within 20 days after the date of mailing of such
         notice, demand in writing from the surviving or resulting corporation
         the appraisal of such holder's shares. Such demand will be sufficient
         if it reasonably informs the corporation of the identity of the
         stockholder and that the stockholder intends thereby to demand the
         appraisal of such holder's shares. If such notice did not notify
         stockholders of the effective date of the merger or consolidation,
         either (i) each such constituent corporation shall send a second notice
         before the effective date of the merger or consolidation notifying each
         of the holders of any class or series of stock of such constituent
         corporation that are entitled to appraisal rights of the effective date
         of the merger or consolidation or (ii) the surviving or


                                      C-2
<PAGE>

         resulting corporation shall send such a second notice to all such
         holders on or within 10 days after such effective date; provided,
         however, that if such second notice is sent more than 20 days following
         the sending of the first notice, such second notice need only be sent
         to each stockholder who is entitled to appraisal rights and who has
         demanded appraisal of such holder's shares in accordance with this
         subsection. An affidavit of the secretary or assistant secretary or of
         the transfer agent of the corporation that is required to give either
         notice that such notice has been given shall, in the absence of fraud,
         be prima facie evidence of the facts stated therein. For purposes of
         determining the stockholders entitled to receive either notice, each
         constituent corporation may fix, in advance, a record date that shall
         be not more than 10 days prior to the date the notice is given,
         provided, that if the notice is given on or after the effective date of
         the merger or consolidation, the record date shall be such effective
         date. If no record date is fixed and the notice is given prior to the
         effective date, the record date shall be the close of business on the
         day next preceding the day on which the notice is given.

         (e) Within 120 days after the effective date of the merger or
consolidation, the surviving or resulting corporation or any stockholder who has
complied with subsections (a) and (d) hereof and who is otherwise entitled to
appraisal rights, may file a petition in the Court of Chancery demanding a
determination of the value of the stock of all such stockholders.
Notwithstanding the foregoing, at any time within 60 days after the effective
date of the merger or consolidation, any stockholder shall have the right to
withdraw such stockholder's demand for appraisal and to accept the terms offered
upon the merger or consolidation. Within 120 days after the effective date of
the merger or consolidation, any stockholder who has complied with the
requirements of subsections (a) and (d) hereof, upon written request, shall be
entitled to receive from the corporation surviving the merger or resulting from
the consolidation a statement setting forth the aggregate number of shares not
voted in favor of the merger or consolidation and with respect to which demands
for appraisal have been received and the aggregate number of holders of such
shares. Such written statement shall be mailed to the stockholder within 10 days
after such stockholder's written request for such a statement is received by the
surviving or resulting corporation or within 10 days after expiration of the
period for delivery of demands for appraisal under subsection (d) hereof,
whichever is later.

         (f) Upon the filing of any such petition by a stockholder, service of a
copy thereof shall be made upon the surviving or resulting corporation, which
shall within 20 days after such service file in the office of the Register in
Chancery in which the petition was filed a duly verified list containing the
names and addresses of all stockholders who have demanded payment for their
shares and with whom agreements as to the value of their shares have not been
reached by the surviving or resulting corporation. If the petition shall be
filed by the surviving or resulting corporation, the petition shall be
accompanied by such a duly verified list. The Register in Chancery, if so
ordered by the Court, shall give notice of the time and place fixed for the
hearing of such petition by registered or certified mail to the surviving or
resulting corporation and to the stockholders shown on the list at the addresses
therein stated. Such notice shall also be given by 1 or more publications at
least 1 week before the day of the hearing, in a newspaper of general
circulation published in the City of Wilmington, Delaware or such publication as
the Court deems advisable. The forms of the notices by mail and by publication
shall be approved by the Court, and the costs thereof shall be borne by the
surviving or resulting corporation.

         (g) At the hearing on such petition, the Court shall determine the
stockholders who have complied with this section and who have become entitled to
appraisal rights. The Court may require the stockholders who have demanded an
appraisal for their shares and who hold stock represented by certificates to
submit their certificates of stock to the Register in Chancery for notation
thereon of the pendency of the appraisal proceedings; and if any stockholder
fails to comply with such direction, the Court may dismiss the proceedings as to
such stockholder.

         (h) After determining the stockholders entitled to an appraisal, the
Court shall appraise the shares, determining their fair value exclusive of any
element of value arising from the accomplishment or expectation of the


                                      C-3

<PAGE>

merger or consolidation, together with a fair rate of interest, if any, to be
paid upon the amount determined to be the fair value. In determining such fair
value, the Court shall take into account all relevant factors. In determining
the fair rate of interest, the Court may consider all relevant factors,
including the rate of interest which the surviving or resulting corporation
would have had to pay to borrow money during the pendency of the proceeding.
Upon application by the surviving or resulting corporation or by any stockholder
entitled to participate in the appraisal proceeding, the Court may, in its
discretion, permit discovery or other pretrial proceedings and may proceed to
trial upon the appraisal prior to the final determination of the stockholder
entitled to an appraisal. Any stockholder whose name appears on the list filed
by the surviving or resulting corporation pursuant to subsection (f) of this
section and who has submitted such stockholder's certificates of stock to the
Register in Chancery, if such is required, may participate fully in all
proceedings until it is finally determined that such stockholder is not entitled
to appraisal rights under this section.

         (i) The Court shall direct the payment of the fair value of the shares,
together with interest, if any, by the surviving or resulting corporation to the
stockholders entitled thereto. Interest may be simple or compound, as the Court
may direct. Payment shall be so made to each such stockholder, in the case of
holders of uncertificated stock forthwith, and the case of holders of shares
represented by certificates upon the surrender to the corporation of the
certificates representing such stock. The Court's decree may be enforced as
other decrees in the Court of Chancery may be enforced, whether such surviving
or resulting corporation be a corporation of this State or of any state.

         (j) The costs of the proceeding may be determined by the Court and
taxed upon the parties as the Court deems equitable in the circumstances. Upon
application of a stockholder, the Court may order all or a portion of the
expenses incurred by any stockholder in connection with the appraisal
proceeding, including, without limitation, reasonable attorney's fees and the
fees and expenses of experts, to be charged pro rata against the value of all
the shares entitled to an appraisal.

         (k) From and after the effective date of the merger or consolidation,
no stockholder who has demanded appraisal rights as provided in subsection (d)
of this section shall be entitled to vote such stock for any purpose or to
receive payment of dividends or other distributions on the stock (except
dividends or other distributions payable to stockholders of record at a date
which is prior to the effective date of the merger or consolidation); provided,
however, that if no petition for an appraisal shall be filed within the time
provided in subsection (e) of this section, or if such stockholder shall deliver
to the surviving or resulting corporation a written withdrawal of such
stockholder's demand for an appraisal and an acceptance of the merger or
consolidation, either within 60 days after the effective date of the merger or
consolidation as provided in subsection (e) of this section or thereafter with
the written approval of the corporation, then the right of such stockholder to
an appraisal shall cease. Notwithstanding the foregoing, no appraisal proceeding
in the Court of Chancery shall be dismissed as to any stockholder without the
approval of the Court, and such approval may be conditioned upon such terms as
the Court deems just.

         (l) The shares of the surviving or resulting corporation to which the
shares of such objecting stockholders would have been converted had they
assented to the merger or consolidation shall have the status of authorized and
unissued shares of the surviving or resulting corporation.


                                       C-4

<PAGE>


                                  APPENDIX 99.1

1.       PROPOSAL TO APPROVE AND ADOPT THE AMENDED AND RESTATED MERGER AGREEMENT
         DATED MARCH 24, 1999 BETWEEN CONCENTRA MANAGED CARE, INC. AND YANKEE
         ACQUISITION CORP.

- --------------------------------------------------------------------------------
         [ ] FOR                    [ ] AGAINST                     [ ] ABSTAIN
- --------------------------------------------------------------------------------

2.       DISCRETIONARY PROXY. In their discretion, the proxies (and if the
         undersigned is a proxy, any substitute proxies) are authorized to vote
         upon any other business that may be proposed to come before the
         meeting.

- --------------------------------------------------------------------------------
                                  Address Label
- --------------------------------------------------------------------------------

THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED HEREIN
BY THE UNDERSIGNED STOCKHOLDER. IF NO DIRECTION IS GIVEN, THIS PROXY WILL BE
VOTED FOR THE APPROVAL AND ADOPTION OF THE AMENDED AND RESTATED MERGER
AGREEMENT.

Please sign your name exactly as it appears on the stock certificate. When
shares are held by joint tenants, both stockholders should sign below. When
signing as attorney, executor, administrator, trustee or guardian, please state
your title as such. If a corporation, please sign in full corporate name by the
President of the corporation or other authorized officer. If a partnership,
please sign in full partnership name by an authorized person.

- --------------------------------------------------------------------------------
SIGNATURE                            TITLE                       DATE
         ------------------------         -------------------        ----------
          PLEASE MARK, SIGN, DATE AND RETURN THIS PROXY CARD PROMPTLY,
                          USING THE ENCLOSED ENVELOPE
- --------------------------------------------------------------------------------

<PAGE>

                                      PROXY

- --------------------------------------------------------------------------------
                           CONCENTRA MANAGED CARE, INC.                     Logo
- --------------------------------------------------------------------------------

              SPECIAL MEETING OF STOCKHOLDERS--          , 1999

         The undersigned hereby appoints Daniel J. Thomas and Richard A. Parr II
or either of them, with full power of substitution in each, proxies (and if the
undersigned is a proxy, substitute proxies) to vote all Common Stock of the
undersigned in Concentra Managed Care, Inc. at the Special Meeting of
Stockholders to be held at                      , on                ,
           , 1999 at 10:00 a.m., local time, and at any adjournment and
postponement thereof, as specified on the reverse side of this card.

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

              (PLEASE SIGN AND DATE THE REVERSE SIDE OF THIS PROXY)



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