William John "Bill" Cubit (born October 14, 1953) is an American football coach and former player. He is currently the interim head coach for the Illinois Fighting Illini, replacing Tim Beckman, who was fired before the start of the 2015 season. Cubit previously served as head coach for the NCAA Division III Widener Pride from 1992 to 1996, and for the NCAA FBS Western Michigan Broncos from 2005 to 2012.

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