You can make an argument for bass being team MVP as of today. If we have a true center, 6'11" and up who can affect shots and average about 10 boards a game it's a no brained, bass. His knock, this year, is he is 6'8". This season we've seen him improve every part of his game. Celtics have the luxury of having three very good backup pf players. To me sully is starter material but I don't see that bad of a drop off with bass or hump.
I think it'll boil down to which player can "net" us the best deal in a trade. We have sully, bass, humo, Kelly olynyk as power forwards ( not even counting green can give you minutes)