If it's not a keeper I say trade Dez. Im really not buying the talks of him being ready to go in a few weeks. Julio took a year before he was the same. And Durant just dealt with the same surgery. Get guys that can help. Decker, Wright and Morris should be a good enough return
Even if it is a keeper you can justify trading Dez depending on how keepers work. If he's a 1st round keeper, it's really no big deal to trade him. I would hold onto him though