Don't know if this has already been discussed to death, but Quinn doesn't look ready for this level physically. To me he looks similar to Reinhart's early years where he wasn't the best skater and wasn't strong enough on his skates to hold the puck for more than a quick second.
I want to be clear though, I'm not saying this is a crisis or that he's not going to be a good player. I think physically he's just not ready yet and they should act accordingly.
The way I see it, they could go a couple different routes with him right now. 1) keep him around, have him work out and build strength, getting the occasional game and trying to manage his confidence so he doesn't lose the traits that make him so promising. They did this with Tage at one point. Or 2) they can send him back to Rochester and give him another year there. Give him another off season to get bigger and faster, and have him try again next year. This would certainly help Rochester as well.
Or I guess they could do 1 and then eventually 2 if he doesn't make progress.
I know its only game 3 and you don't want to jump to snap judgments, but you also don't want to avoid making a decision and have him spin his wheels.