The biggest questions since O'Brien's departure for me have been 1. Will Hack stay? And 2. Will Franklin and his staff get the best out of him, or force him to adapt to their own preferences on offense (which admittedly I didn't really know anything about).
On 1, we gotta be happy that Hack likes Penn State as much as we do, and that the staff passed his muster. On 2, I was thrilled with the offense yesterday.
Watching the kinds of QBs that the staff is recruiting, I worried that it would try to shoehorn Hack into some weird spread option type thing. But it may be that those guys are safer recruiting bets because they give you more options should your "pro style" QB turn out not to be able to make the jump.
Hack is a once in a lifetime type QB. If this program catapults into the national power conversation (as early recruiting suggests it might), there is a good book for Blue and White obsessives about the key players: O'Brien, Mauti, Joyner, Hackenberg, Franklin.
I assume you are making your judgement based on Wimbush and McSorley. This Pro Style QB is a top target for 16. I think you can relax knowing we aren't going to be running the wishbone anytime soon. I think what we saw from Hack yesterday moving around is what Franklin meant by wanting mobile QBs.