Ray Rice
Rice was one of the Ravens’ most important players but he was an appalling human being. He infamously assaulted his girlfriend in one of the NFL’s worst domestic violence cases. Camera footage captured the Baltimore star dragging his victim out of an elevator.

Roger Goodell made a mess of punishing Rice as he showed a lack of a moral compass. The commissioner received a massive amount of criticism because it was a joke. In the end, Rice received an indefinite ban but no team wanted to touch him when it ended (via The Spun).