Joakim Noah has been playing well, and in my opinion he is a very good player. He has two major warts, he is injury prone and he is incredibly ugly.

Chicago out/ Denver in: Joakim Noah, R. Hamilton
Denver out/ Chicago in: W. Chandler, J. Hamilton, C. Brewer, T. Mozgov, 2013 1st, 2015 1st
Chicago is over the tax, and this deal drops them under while giving then a few prospects. It hurts to give up Noah, but this is a future oriented move. Hamilton could be the SG Chicago is looking for. He has a sweet stroke, he's big, a great rebounder and extremely cheap. Chandler would be a nice addition to Chi's bench. Koufos would start at C. Mozgov and brewer would fill in the bench, and their 7.5m would expire.
Denver consolidates and takes on some salary. Noah is the best player in the deal. He is an injury risk, but what really matters is if he is healthy during the playoffs. Rip is a good shooter, and he has a 1m buyout next year. Joakim would make the nuggets very good.