I think trading Kemba will be an addition by subtraction type of move. I much rather have solid role player veteran types (ala a Jae Crowder or Tim Hardaway Jr) to pair up with Jayson and Jaylen. If the Celtics keep Smart, it has to be where he comes off the bench, where I believe his value truly shines. Robert Williams is a game changer type of player, but he is also unreliable, as far as health is concerned. For that reason, I really like the Jonas idea. Tristian is too lumbering and simply can't play in the paint like a classic big man.