Another idea involving the Cs and Jazz
Celtics get Kyle Anderson [ Anderson is a player who I think would fit really well next to the Jays and should then be resigned in the offseason]
Grizzlies get Eric Gordon, 2nd from Boston) [ if they are going to make a push in the playoffs a proven vet who can shoot and defend like Gordon will really help them, a FA and a late first is not a steep price if he gets them wins in the playoffs]
Rockets get Joe Ingles (likely buyout), Culver, 1st (from Memphis), 2nd (from Utah) [giving Culver a chance at minutes, along with a 1st and a second seems like decent value for Gordon]
Jazz get Richardson [while others have pointed out he isn't big enough to defend big wings Richardson is a clear upgrade on their bench and a player who will help then make a championship push]
A separate deal that I could see making some sense would be
Bucks get Schroeder
Celtics get George Hill and a 1st
The bucks get the upgrade and scoring punch off the bench and the Cs get a solid vet to bring playoff proven leadership to the bench for this season and next and a late first. Hill makes 4mill next season