It's pretty simple for Dion.
Adapt and change the way he plays the game or be traded.
We can argue all we want but the Dion we've seen for most of his first two seasons isn't a fit next to Kyrie Irving. Sure, Waiters is probably more talented than Klay Thompson, but who is a better fit for this team? It's Thompson, easily.
He needs to realize that he needs to create for himself within the confines of the offense. Too many times the ball gets into Dion's hands, he stops the flow, calls for a screen, and plays 1 on 1 and forces a shot at the rim.
If Dion would embrace a true Shoot Guard role, and not a Combo Guard role with the ball in his hands, his combo guard-like skills would be very beneficial to the team and the half-court offense. He's a talented player and more than capable of thriving in a true SG role, but whether he does it is another story.....