10. Donald Sterling – Los Angeles Clippers
Sterling was a massive racist. Do we have to continue? Not only that, but he was also totally inept as the team’s owner. First of all, he alienated fans by moving the Clippers from San Diego to Los Angeles. That might have been okay if the results had followed. In short, they definitely didn’t.
In his first 25-plus seasons as a team owner, they made four playoff appearances and won just a single playoff series. That’s a grim record. Then there was that lawsuit led by former Clippers executive Elgin Baylor. Finally, the NFL forced him out and he sold the Clippers for $2 billion in 2014.