Chicago, Illinois, March 7, 2003 - Duff & Phelps, LLC, rendered a fairness opinion to the trustee of the DynCorp ESOP on the cash and stock consideration to be received by the ESOP in DynCorp's proposed merger with Computer Sciences Corporation, a global information technology services company.

DynCorp was founded in 1946 and established itself as one of the leading IT services and outsourcing contractors to the U.S. federal government. Prior to the merger, DynCorp ranked among the largest U.S.-based, employee-owned technology and outsourcing firms.

Duff & Phelps, LLC, a Chicago-based investment banking and financial advisory firm, provides independent financial analysis and advice, including fairness opinions, for both public and privately-held companies in transactions involving corporate acquisitions and divestitures, ESOPs, going private transactions, related party transactions, recapitalizations and restructurings, and exchange offers.