Coan wasn't developed by Rees.
Book got 3 years to grow and learn.
Outside of those 2, what quarterbacks came into the Kelly/Rees system and got better?
It's still early for Pyne, and Buchner, but Rees isn't helping his QBs with his system. I think there is plenty of evidence from the past 10 years on that.
And the biggest point of all ... the board hated on Pyne so hard then ND won 3 in a row. After that the board was like "Pyne is pretty good". Now, one bad game and Pyne sucks. This board is bi-polar.