There have been 21 head coaches for the Giants franchise. Five coaches have won NFL Championships with the team: Earl Potteiger in , Steve Owen in 1934 and 1938, Jim Lee Howell in 1956, Bill Parcells in 1986 and 1990, and Tom Coughlin in 2007 and 2011. Steve Owen leads all-time in games coached and wins, and LeRoy Andrews leads all coaches in winning percentage with .828 (with at least one full season coached). Bill Arnsparger is statistically the worst coach the Giants have had in terms of winning percentage, with .200.