In a large proportion of cases, yes. However, there are a couple of exceptions. Modric, I believe, is a rare exception. I said before that regardless of what happens to him this Summer transfer window, he would not be so fazed by what's going on that it would have detrimental effects on his performances. He seems like the type of player that just gets on with it and won't rebel against the manager or club, if the manager refuses to let him leave. Fábregas seems to be the type of player that just won't bother at all, if he doesn't get his own way. He says that he's happy at Arsenal but it hasn't shown in his displays or his attitude. If anything, he seems completely disillusioned.