2. Don Shula
Shula coached in an NFL record 526 games, 347 of which he won as head coach of the Miami Dolphins. His 347-173-6 record stands as the winningest record in NFL history. Yet, wins and losses do not describe one of the 9 best head coaches in NFL history. Shula led the Dolphins to a perfect season in 1972, a feat never replicated by any other NFL head coach. He coached the Dolphins to six Super Bowl appearances, a number matched by only one other NFL head coach. Shula created the three running back wishbone formation that perplexed the brightest defensive coordinators.