7. Barry Switzer
Jimmy Johnson couldn’t work with Jerry Jones and walked away after consecutive Super Bowl-winning seasons. Enter Switzer who led the Cowboys to the NFC Championship game, where they lost to the 49ers because of his coaching mistake. But the following year they won the Super Bowl again. That was in 1996 and none of their subsequent attempts have gotten off the ground.
Over the following couple of seasons, the Cowboys regressed. Finally, after finishing 6-10 in 1997, Jones sacked Switzer. Later, the coach admitted that players didn’t listen to him properly. This could have been a dynasty but instead, the franchise regressed. Switzer has a solid record on paper and was a phenomenal college coach. But he should have done more with the team he had.