23. Terrell Owens
When you are incredibly talented at what you do, your employer typically values you and wants to keep you around. Well, TO is an example of what happens when you are incredibly talented and an incredible jerk.
TO played for six teams over his 15-year career, which is easy to do when you verbally assault your quarterbacks, coaches and offensive staff. While extremely productive, most teams were glad to see the back of the selfishly vocal Owens when he left.