RR9 does many things well. But with out a semblance of a jump shot he hurts the team so bad.
It's masked A LOT by the 3 guys around him. But he's entirely tradable as a piece.
He has a few other offensive short comings, but that lack of a jump shot is going to be so brutal when the 3 retire.
He is still a bit lacking but i do seem him making strides in that department. With some breathing room he can make a long 2 and his ft% has to have gone up.
Which, really, as he long as he can make mid to long range 2's with space he should be fine. He's a great off the dribble guy and finisher at the basket and will break people down once they have to start guarding him outside the paint.
Plus kid's a great rebounder, tenacious defender and just a one man wrecking crew in transition. I would love to have him on the blazers but if the celtics are smart they'll keep him.