Unless you count Nick Claxon as a center they have Aldridge and the rookie Sharpe aside from Okafor
They dumped Jordan
I think they may keep Okafor to accentuate their defensive profile
Edit
I forgot about Militinov a euro seven footer
It may be a competitive camp
Claxton was pretty damn impressive as a rookie. Makes the loss of Allen less painful, if at all.
Think Nyets go with Blacke Griffin as small ball center/PF. Likewise Aldridge.
After which Claxton and Okafor at the 5. And the rook, though less pressure for him to produce immediately.
Okafor's defense has always been suspect, and what made him such as well travelled fellow. Of late, he got his conditioning more together. Vulnerable on D, but he could always, ALWAYS score in the blocks.
Nyets have great depth, but the consensus is that the one cat they lost to free agency that they cannot/have not replaced is Jeff Green. Perhaps Blake Griffin in spots, as he has three point range, though that is not his primary thing.