Not saying what Barton done was right, but everyone seems to be forgetting why Barton done what he did to Tevez, the replay clearly shows Tevez kicks Barton in the back of the legs, yet nothing is said, another situation where Tevez gets away with it. He is not at Man Utd because no player is bigger than the club*, however at Man City he is bigger, and that will only last for a short while.
Barton has a short fuse and other players play on that instead of getting on with a proper game of football. They have all tried with various other players, Rooney to mention one, but at least he has matured..WHY, because Fergy has nurtured him.
*Except Wayne Rooney