Celtics need to shed as much salary as they egg can and without moving Tatum or Brown, they will have to turn to White, Jrue, and Porzingis. No body will want to take on Jrue’s contract at his age and White is too valuable to this team. Porzingis is the easiest to move with his 1 year remaining and unlikelihood of being resigned. Celtics shed salary while adding a younger stretch big, a backup Guard, and 4 future picks (three 2nds and one 1st).
Lakers do a massive trade to land Duren to be their lob threat big and land a backup sharp shooting forward on an expiring deal in Fontecchio to shed some salary from Kleber to Fontecchio.
Pistons see that the Celtics may need to trade Porzingis and get the stretch big that can defend and instantly become the #2 option in Detroit. When they do this, it opens the door to trading Duren because Porzingis will man the 5. Detroit lands two 1sts, a swap, a 2nd, and Dalton Knecht for Duren from the Lakers. Detroit then resigns Malik Beasley, Dennis Schroeder, and Paul Reed. As well as extend Ivey and Porzingis. A new rotation could then look like:
Cade, Ivey, Ausar, Tobias, Porzingis
Schroeder, Beasley, Knecht, Holland, Reed, Kleber, Klintman, Jenkins, two 2nds