With Dunn being out, we really need him to step up. Austin will have to start. Amsal becomes the 6th man. In the long run, maybe it is exactly what we need. Baptism by fire. Hopefully, he adapts quickly and becomes the guy we've hoped he would be.
You can already tell he’s coming along a bit. Because of random in-game things that’ll happen (injuries, foul trouble, etc.), he’ll have a break out offensive game soon enough. And like you said, he kind of has to.
He just needs to get used to the intensity of a big college bball game, and buckle down a bit on the defensive end.