Having not even played a full season yet, don't take my opinion for granted, but...
I'd say you could use that player in a lot of ways- SG, SF, PF... knowing me, I'd even go so far as to experiment at PG, but in your position, I'd play him as a SF for now, ocassionally putting him as backup SG rather than backup SF, experimenting with him in your offense, and trying new stuff out during scrimmages, should you get eliminated from the tourney.