Jesse Chatman again stands to gain from the continued problems of suspended Dolphins running back Ricky Williams. The Dolphins are not expected to pursue an outside replacement even with Williams apparently precluded from applying for reinstatement until September after a fifth failed drug test. The Dolphins' decision seems to arise from a lack of interest in Corey Dillon and Chris Brown, and the belief that rookie Lorenzo Booker and Chatman can manage backup duties behind starter Ronnie Brown.