It beggars belief, but it's been quite widely reported that he was the one who forced Ben Arfa out for not apologising sufficiently to Pardew after a bust up between the two.
Nah I'm unconvinced about that.
Not all of them obviously. Colo, Willo, Elliott, Dummett and the likes wouldn't have, but I think there are quite a few in that dressing room glad to see the back of him.