This seems like the proper bigs thread to bring up one somewhat unmentioned and possibly underrated aspect of the C's bigs situation. UNPREDICTABILITY
Unpredictabilty doesn't work when if the players in question are not good enough. But in this case, the C's could do some damage simply by being hard to plan for for opposing teams/coaches.
Kanter: elite rebounder, excellent inside scorer, toughness.
G Will: upper body strength, IQ, positioning, passing, toughness.
RWill: explosiveness, shot blocking, passing
Theis: defense, IQ, outside shot, all around play
# 1 weakness as a group = size
#2 weakness as a group = man to man defense
Not much else for weaknesses in the group, unless you count inexperience when R Will is out there.
So far the individual strengths of the many (verses 1 stud who does everything) is making it hard for the other team to plan on just one approach. And this is wining out over the collective weaknesses.