I use to feel that way about Vonleh, but the more highlights I watch (Nurk, not Noah - Noah doesn't have any!) the more difference I see between how Nurk affected their games. Harkless actually creates his opportunities by using the abilities I mentioned in my first post. Noah really doesn't have any abilities to create offense with. Rather he's a release valve - Nurk will find him when Noah's man slides over to defend Nurk. Noah isn't creating passing lanes - Noah's defender is! But to his credit, he's got a decent 10-15' jumper and he can dunk as long as no one is guarding him.
Noah might be fine as our starting PF. His defense, particularly on the perimeter, is highly valuable. And as a 5th option on offense he's fine - stick the open jumper, dunk, and hit the o-boards. We really don't want a PF taking shots away from Dame, CJ, Nurk, and Harkless. But if Collins pans out, it sounds like he could be better on both ends of the court. Either way, our PF needs to primarily play defense and rebound - any offense they bring should be considered a bonus.