The Minnesota Vikings are 0-4 and are wasting another season of Adrian Peterson's prime.
TWith a physical back like Peterson, you never know how many dominant seasons you are going to get, and Peterson's frustrations are understandable.
With a 20-point lead against the Detroit Lions, Peterson only got the rock five times in the second half—simply an inexcusable gaffe by the coaching staff. Now the team loss to the previously winless Kansas City Chiefs and Peterson's frustration is warranted.
Some players are producing in a sticky situation, while others are not playing up to draft, contrac, or starting status. Here are 10 other stars nearing the breaking point with their teams.