Good question. Better yet, what is going to be the starting 5 next year? We got a good rhythm out of Smart-Bradley-Turner-Bass-Zeller.
Bass is (most likely) gone. Sully should be back healthy. Now Johnson's on the roster. My best guess is Johnson is the 3rd big that brings energy off the bench playing with IT. My best guess for the starting five next year at the start:
PG:Marcus Smart
SG:Avery Bradley
SF:Evan Turner
PF:Jared Sullinger
C:Tyler Zeller
But I could be wrong. As you said, Zeller and Sully may not be the best pairing.