Don't hate the idea.
I actually didn't mind him when he was here. He's capable of blowing up on offense at times, seemed to have a pretty decent attitude, and while his defense wasn't spectacular he always did seem to try hard.
I think you're in trouble if he is a core guy, but as insurance in the back-court I don't think it's a bad idea, assuming we can't get somebody better or more useful (e.g. a rim protector).
He proved this year that he is still quite capable as a scorer.