Sometime the best trades are the ones you don't make. We don't have a dire need for Rudy. He can opt out at the end of next year. So you would give up Klay for perhaps a rental?
What about team chemistry? Why mess with it?
There is absolutely no reason to help Memphis get under the tax and give them a good young inexpensive player who they can control for the forseeable future for Rudy Gay. None!
Its their tree and they are sitting in it. Let them find a way out. Let them deal Gay for shit just to get under the tax. Let them deal with discord and the uncertainty.