6. Ray Handley
1990 was a fantastic year for the New York Giants as they won the Super Bowl. Nobody could have expected how quickly things would go downhill. Handley took the head coach position for the 1991 season and immediately alienated fans by dropping star quarterback Phil Simms. He’d last two seasons but for the Giants faithful, he outstayed his welcome.
It was a decision that failed to pay off as the team finished the season with an 8-8 record and out of playoff contention. Of course, this led to fans calling for his head but the ownership recognized he had an aging squad and gave him the chance to put things right. In short, they should have fired him because his second term was even worse at 6-10.