I was kind-of hoping we could use Denver as a way to deal for Cousins. While this is unrealistic, it would help Karl get his PG in Lawson and also get them other young players, draft picks. What we have to offer isn't all that wonderful in terms of players, but Lawson would definitely get our foot in the door.
As far as Gallinari goes, I could be sold - he is tall for a SF, productive, and has had a couple really impressive seasons. His injuries are a concern, but he is a proven talent when healthy. With our TPE, I don't think we would need to give up much.