Why do we have a gridlock at the 5?
KG
Wilcox
Collins
Melo
Darko
occasionally Sullinger
Well, I don't think Melo enters into the equation now, he is a long-term work in progress (as he should be). And Collins will be a spot player, only against very few matchups.
So that leaves KG, Wilcox, Darko, and occasionally Sullinger.
What I think happens is there will be a real battle in camp (and beyond) between Darko and Wilcox as the primary backup. I also think you will see Wilcox playing more PF (his true position) against teams that going small against is not a good idea.
The nice thing is, the C's are in a situation where they have a bunch of big men who don't NEED minutes...but can handle minutes. And that is what you want. It really gives you a lot of flexibility, and much needed depth.