I would not even call it PG. Id call it our primary ball handler. Ashton had multiple issues during multiple games in the NCAAT of decision making, especially in key moments. Why not try Tyler out there? He has shown he has the skills and not good, but very good decision making abilities. His shooting ability also changes what you can get out of pick and roll actions.
I think there are multiple of variations of lineups without Hagans:
Herro, Quickley, Keldon, PJ, Reid Travis
Herro, Quickley, Keldon, PJ, Nick Richards
Herro, Baker, Keldon, PJ, Reid Travis
Herro, Baker, Keldon, PJ, Nick
Can also throw EJ in the big rotation or go a 4 out 1 in with Herro, Quckley, Baker and Keldon all on the floor at the same time.
To act as if there is no way to construct a lineup without Ashton Hagans is flat out incorrect.