You know things are going bad—like, really bad—for a sports team when their own fans turn on the team and take out their frustrations on the team's coach. They boo him, they rip him to shreds on sports talk radio, and they do everything in their power to get the coach fired. It's happened to almost every pro and collegiate sports team at one time or another. Bleacher Report just took a look at some of the most hated coaches of all time over here. These guys don't get a lot of love from their "fans."

[via Bleacher Report]