I remember some Melo discussions on here back before he re-signed with NY. I think he would have been better then for the Bulls. But then you have to think about Butler's development and how it would have affected that. Hard to say.
I don't think getting Melo now would be worth it, you're really just having a guy in his decline at 33 eat up way more than he's worth, just for you to probably lose in the ECF or 2nd round. Then you're probably rebuilding again anyway.