In a planned transition of executive responsibilities, Performance Food Group (Nasdaq/NM:PFGC) Friday (10 August) announced that C. Michael Gray, 51, is assuming the responsibilities of president and chief executive officer effective immediately. Gray has served as president and chief operating officer since 1995 and as a director since 1992. Robert C. Sledd, 48, has served as chief executive officer since 1987 and will continue to serve as chairman, a position he has held since 1995.