He has the height and weight. But its obvious that he lacks upper body strength. Watch him as he defends dribble/drives as his upper body eventually goes vertical versus staying at 45 degree angle. He basically caves in. But that can be improved with proper weight training and coaching. My biggest concern is that he didn't seem to have the desire and instinct to belly up and play tough D, unlike a Loewe or Gabe. Willis had the same issue. Just my observation, FWIW.I don't disagree with the conclusion and I'd be perfectly fine playing more zone next year, but I don't think Cooper's issue is going to be upper body strength, he's pretty big for a guard.
As far as Morehead State's defense, yeah, they certainly switch a lot and play a lot of zone. But I'm not sure if that is a product of Cooper as much as it is of their lineups. They played a lot of small guys (at least in the small sample size of the games I watched).
Watching the video of the two Murray St games, it was obvious to me that Cooper was by far the main player doing the switching. That's not necessarily a bad thing but it does make one wonder about how much of that strategy was to cover up for his lack of D ability. Just my observation and I am just doing my thing by pointing out my concern, right or wrong.
Can he and the other newbie's fit into Ben's D basic man philosophy? Or will Ben adjust with a zone as he did when TT was on the floor? Time will tell.