Matt, I have to disagree with you here. The guy is 6-10, and shows very nice dribbling and shooting skills for a guy that size. I'd say his style of play reminds me of a Chandler Parsons, or a Dirk (obviously he's not nearly as good as Dirk), which is almost perfect for a four in our offense. He's a totally different player than Doyle, Donnal and Teske.
As I see it, Doyle and Donnal are pure fives in this offense. I'm sure the staff hoped at one point Donnal could play the four, but it doesn't look like it. Indeed, lately, he hasn't been able to crack the lineup at all. Teske will come in during the 2016 season (when both Doyle and Donnal will be juniors), and I think it's entirely possible he redshirts, depending on his own physical growth (seems like he'll need to add significant weight) and the progress of the other two.
That also throws Wilson into the mix. Where does he play? I think the jury is still out as to what he can do. Maybe he's a five too, and by 2016, one of Donnal and Wilson has moved on (I have to think they like what they have in Doyle, and he'll be starting at the five no matter what).
As far as creators, we used Glenn at the four the past two years, and he rarely created much off the dribble. His best attribute was finishing at the rim off a pass from someone else. The need for creators in this offense is from the wing positions. To that end, Irvin has demonstrated much better passing ability over the past several games, and I would expect that to continue. He's also improving on pull up jumpers and drives. A healthy Walton is more than capable of getting his own shot, or penetrating to set up others. And MAAR can get his own shot, and is improving at setting up others. All of this, of course, assumes Caris won't be back; if he is, he can certainly get his own shot, too. There's no doubt it would be great to land a quasi-PG like Nik, who was a great shooter but also a great pick-and-roll player (last year, not much as a freshman). Maybe that's Langford, if we get lucky and get him.
I think Wagner looks pretty good; I'd be happy about getting him. If our 2016 lineup looked like this, I think we would be really good:
PG: Walton, Winston
SG: Langford or Battle, MAAR
SF: Irvin, D. Robinson, Dawkins
PF: Wagner, Chatman
C: Doyle, Wilson, Teske (RS)
The interesting thing here is that we usually do not go nearly this deep (and I've even left off Donnal), so what happens? If we do get Wagner, and he and Robinson are indeed good, that's going to put a lot of pressure on Dawkins and especially Chatman to step up their games quickly so they don't lose playing time.