The Blazers need to do something if they want to keep Lillard around for the long haul. Simmons fixes all of the Blazers defensive problems and alleviates some of the pressure from Lillard allowing him to play more off-ball. Simmons, Lillard, Powell, Roco, Nurkic
The sixers need a guard who can shoot the three in order to free up the paint for Embiid to be most effective. They also move on from Simmons and get rid of the headache that is Rich Paul. They also gain future assets to pursue a superstar down the road. McCollum, Thybulle, Green, Harris, Embiid