Green was a stiff before he got here, he is a stiff now, and he will be a stiff after he leaves. Trade him to a chump team where there is no pressure and he'll probably avg 15-17ppg, be a good offensive player, and a stiff in all other ways. Keep him here and it's likely to get even worse.
Lee, on the other hand, I like. Good defensive player. Offensively his shots need to come from 15 feet and in, and he'll be fine.