Pretend for one second that Tony Allen came out and said, "basketball is no fun for me anymore...it's just a job." Would you want him back? I wouldn't...
So I'm wondering why we would want to trade for a guy who said this... Those aren't just words on a piece of paper - they are the gut level emotions of a "man" who gets paid handsomely to play a game... If it's no fun emotionally, then why do we think he'll suddenly want to come and play hard for the Celtics?