I guess the big question is, is he in a slump because he's rusty, or is it still due to his knee?
I could be wrong, but he doesn't seem a quick as he used to be, and he certainly can't finish at the rim. I can't remember seeing anyone get blocked at the rim as much as he has.
I'm hoping it's rust, but seems to me, he's just not the same player he was before the injury.
That being said, I'm really not sure what he could possible bring back in a trade. Not sure why any team would want to absorb him contract, much less give you anyone worth while in trade.
Think he's here to stay, and we just have to hope he recovers enough to be of some help to the team.