The Knicks actually became (gulp) likable when Lin made his run, and he was great. They were playing a team oriented style of ball, and they were winning. When Carmelo came back, it was back to ultra-constipated, nauseating, selfish iso ball. Also, I really think that more than anyone else, Anthony really resented the phenomenon that Lin became, and I do suspect there would have been locker room problems there on account of that, which may well have factored in to management's decision, too.
I wish him well in Houston. He could ultimately be a mediocrity, but I doubt it. He has real skills. I think he's going to be a big success down there.