I would have said he was prettygood to debutants in his first couple of years - Ziebell, Cunnington, Bastinac all got in and rarely went out, even when the team was being smacked, because they came in with big wraps and were learning. Scott got more risk averse as the team got better and the stakes got higher, which is understandable, and may yet also happen with Noble. Even now when he has more older players available the balance has shifted and Lazzarro and Powell can wait in the wings.
Funny how the coaching honeymoon period now is the time supporters are cool with being pretty young and not very good.
I think powell will be back in as soon as he's ready, it's not as if he's been stuck in the VFL. Something to consider when comparing this period to the early Scott days is that getting sent to the VFL was a bit of a crapshoot, you could end up at one of two teams with their own coaching staff, gameplan etc that wouldn't necessarily be in lockstep with the club. Far cry from having Patch Adams there implementing the AFL gameplan at VFL level and getting young guys directly ready to play seniors. Looking back on it, it shouldn't be too surprising that guys like Will Phillips and Bailey Scott can come in and out of the VFL and not look horribly lost for at least a couple of quarters at a time, since they're still in the same system learning the same kind of footy.