‘General manager Tom Donahoe appears to be on shaky ground, particularly now that taking wide receiver Roscoe Parrish instead of an offensive lineman with the team’s first draft pick this season now appears to have been a colossal mistake. Mularkey’s job could be saved only by the assumption that owner Ralph Wilson won’t want to eat the remaining three years of his contract. That said, Mularkey could be forced to revamp his coaching staff, including both coordinators. Overall grade: Given the enormous expectations and the Bills’ failure to meet them, it’s hard to find much positive from this season. D.’