The Celtics will not win the Championship this year. One can list many reasons, injuries, lack of a scoring wing, lack of rebounding, etc. Bottom line - they should make the playoffs perhaps win a round or two and that is about it for this year's squad.
So... I propose let the young ones play and develop. More time for Rozier and Brown. More spot minuted for Young. Does it matter if we are the 3/4 seed or the 7/8 seed? We are not going to win it all in any event.
Team needs: Another Starting Big and scoring SF
Another thing to honest about, what the Celtics players really are:
Horford - 2nd tier All-star level big
Amir Johnson - replacement level player
Crowder - very good defensive player with decent 3 point shot (should be a bench/energy guy similar to a Tony Allen or Posey)
Bradley - undersized SG with above avg defense and above average offense. Cannot take over a game. Solid Starter.
Thomas - 2nd tier all star - but undersized and average at best defensively.
The bench is intriguing with Rozier and Smart at guard - at some point it becomes redundant to have 3 defense first, undersized combo guards.
Smart is wonderfully defensively but his offense is woefully inadequate.
Rozier seems to be a more balanced player and is at this a point an average to plus defender (not a Smart's level) and is showing an adequate offensive game as well.
Do the Celtics need 3 undersized combo guards, neither of whom are particularly adept at dishing the rock? My answer is no. This team needs some scorers I would package Smart in a trade for a wing scorer or center and stick with Bradley and Rozier at combo guard.
At forward the bench has Brown, Jerebko and Olynyk.
Like many of you, I once had high hopes for Olynyk to become at a minimum a plus bench scorer and average defender. But between injuries and apparent lack of confidence, Kelly while having a nice 3pt shot does not shoot often enough, does not rebound enough, and is at best adequate on defense. In other words he is replaceable.
Jerebko is a nice 9th or 10th man off the bench. Fills that role pretty well.
Brown, while primarily a forward can probably also fill in at the 2 spot as well. I would like to see Brown receive 25-30+ minutes a game to determine if he can he become the offensive wing scorer this team needs?
Zeller is a capable 4th string center.
The rest is recyclable - Young, Green, Mickey. If they were any good we would've seen them by now.