Recently completed by the acquisition of Hank Margarita, Dick Harlow's football coaching staff was disrupted by the announcement late yesterday by Bill Bingham, director of Athletics, that Lyal W. Clark, assistant coach, will leave the staff at the end of the month.

No replacement has been selected as yet for Clark, who is quitting Harvard in order to take a position under Wes Fesler, at the University of Pittsburgh. Fesler, who preceded Earl Brown as Varsity basketball coach and assistant football coach here, was appointed head coach of the Panthers early this week.

Clark came to Cambridge in 1938 from a head coaching job at the University of Delaware. He played football under Harlow's tutelage as an undergraduate at Western Marylnd, and later served as line coach there. During the war he served as an athletic instructor at the North Carolina Naval Pre-Flight training center; he returned last November to assume his duties here as end coach.