Michael Vick
Vick should be much higher on this list because he was a generational talent. The former Atlanta star transformed the public’s perception of the quarterback position. But then he went to jail for a few years because he led a dogfighting ring. This meant that he left the Falcons in a hole when he was entering his peak.

The Eagles immediately signed him after his release and he played reasonably well. He won the NFL Comeback Player of the Year award but he should have done more. The four-time Pro Bowl selection could have been one of the greatest ever. But he made shocking decisions outside of football and this cost him dearly (via Sportskeeda).