Seattle Seahawks
Pete Carroll is the greatest coach in Seahawks history and a future Hall of Famer. He guided the ‘Legion of Boom’ to their first Super Bowl victory and made them a contender for many years. If there’s one criticism it’s that they didn’t consolidate their success into a full-on dynasty. But Carroll proved his abilities over and over again as he evolved his tactics.

The same can’t be said about Jim Mora after he inherited the top job in 2008. In the end, his five-year contract wasn’t worth the paper that he signed. He survived until the end of his first season as Seattle went 5-11. Then Carroll entered the picture, and the rest is history (via Fox Sports).