I think our lack of size hurts us against CLE often. The issue is often at the guard position too, they have guys who can smother IT with their size and bother his shot. That was not the case last night so much but during the series it was, CLE has elite size.
I think KO helps a bit in this regard. But as Bud, pointed out he has not dominated against CLE.
We don't have as much quality talent as they do.
Problem with Cleveland is not whether he dominates them or not, but the opposite... their bigs dominate him, particularly with rebounding.
For example, in the playoffs he started the series incredibly hot. So much so that Stevens decided to start him in the 2nd half of the first game, but we all know how it went from there.
So maybe there's room for him if he's playing all world on offense that we can make due with his other deficiencies, but the problem is that is not something we can count on night in and night out (against the Cavs in particular), but on the other hand chances are that he'll be dominated in the glass and post regardless by them.
I do think we are missing some of his production off the bench through the stretch he's been injured, and some of his defense in some situations... but against Cleveland? Nope.
Size aside, which is a valid observation, I think we should start with the basics and start freaking boxing out and go from there.