8. George Allen
Regular-season record: 116-47-5
Postseason record: 2-7
Los Angeles Rams, 1966-1970
Washington Redskins, 1971-1977
It was said of George Allen that he did not curse, smoke, or drink, and that his favorite beverage was milk. As opposed to carousing, Allen spent most of his time working to make his teams better through scheme — as the Bears’ defensive coordinator in the early 1960s, he helped design the first zone defenses. As a head coach, Allen took his “Over the Hill Gang” to Super Bowl VII at the end of the 1972 season, only to be beaten by Don Shula’s Dolphins, the only single-season undefeated team in NFL history. Known for preferring veterans to draft picks and subsequently trading away as many picks as possible for established NFL players, Allen never had a losing season in his 12-year career.