I agree that we really don't know if Ihnen can guard a 3 or if he can be an effective wing on offense. Here's what I would say about him: He is a career 29% shooter from 3, but he did shoot 38% on 45 3's his freshman season, and all of his shots were not all open looks from the corner. The guy has a good stroke and may surprise people. He's long, he is an excellent rebounder, and he isn't a great ball handler but my guess is he's improved his handle over the past 2 years, and I didn't see him as an awful ball handler his first 2 years.
Defensively, he moves very well laterally (at least he used to) and he should be able to guard more than one position. I don't care what position he's playing, a guy like this can be very valuable, and assuming he can move well after his surgeries (no, we don't now that yet), I think he's one of the surprises this year and shows that he's a valuable piece for this team.