
4. Rod Marinelli:
Marinelli’s run as a defensive line coach in college and with the Tampa Bay Buccaneers in the NFL was successful enough to earn him a shot as the head coach of the Detroit Lions. Beginning his tenure in 2006, Marinelli did not have a good opening season with a pitiful 3-13 mark. That would be enough to get you fired in today’s NFL, but he was given a second chance.

A 7-9 mark in 2007 showed marked improvement, earning Marinelli an unlikely third season in 2008. This is where the wheels fell off. The Lions went winless at 0-16 after he reportedly broke out a horrific offensive gameplan in the offseason. It was enough to make quarterback Jon Kitna walk out of a gameplan meeting, predicting the team would go winless if they played according to that plan. Kitna was traded and the Lions went winless. Marinelli left the head-coaching ranks with a horrific 10-38 record. He has, however, resurfaced with Chicago and Dallas. He’s currently the defensive coordinator of the Cowboys and has found a level of success there.