Screening is a crucial skill, there's no question. It's something the program has been lacking for quite some time - Brimah was a terrible screener, and even when we won the national championship, our best pure screener was probably Olander who as a DNP a lot of the time. My recollection was that Okwandu was very useful in that respect during the 2011 run, but I'm a little more fuzzy on that.
I do think, though, that the value of screening is negated some without the shooting to complement it. You'd much prefer somebody like Giffey at that spot (he was a good screener, too, now that I think of it) even if he doesn't fit the mode of a traditional center. Basketball in general is moving away from that prototype (granted, UNC and Gonzaga did it the old-fashioned way, so it isn't as if the true center has gone extinct), and while I'm happy to have one Kisunas on the roster, I had hoped that we had filled some of that void with Cobb.
Our recent recruiting philosophy seems to signal a departure from the Facey/Nolan/Brimah days. In fact, if there were a competition to find the player that was most different from Brimah, Ollie probably won it with this addition. That is both good and bad, but I do think coaches can fall into the trap of over-correcting mistakes and I think the idea of the hulk playing center for us is a lot more appealing now in light of what we have seen than it would be in a different context.
My hope moving forward is that Diarra can represent a hybrid of UConn centers of past, that he can bring the versatility of Giffey defensively with the motor of an Adrien and the shot blocking skills of Brimah. There can be danger in moving from one extreme to the other and while I don't think Kisunas himself changes the tenor of the system that drastically, there appears to be a pattern developing in our recruiting efforts that I'd prefer to see steered back in the other direction.