How difficult is it for a big-time football coach to go nine seasons without being fired? How much more difficult is it when your top assistant is Jerry Van Dyke? All good—and, in the case of the sitcom Coach, mediocre—things must come to an end. The one-hour finale, in which Hayden Fox (played by Craig T. Nelson) ponders a contract extension, airs on ABC on Wednesday (8 p.m). Coach's exit means that Fox NFL analyst Jerry Glanville, who resembles Van Dyke's character, Luther Van Dam, is the most annoying football coach on TV.