I really hope that the reliance on fades in Minnesota was because Jefferson and/or Cousins were very good at that route/throw. It's such a low percentage throw normally and Carr has shown to not be very good on that throw. One of the things that frustrated me about PC is he kept calling fades that didn't seem to be close to being completed.
As far as FB, i'm really wondering if they won't look for a more versatile FB than Prentice. Not sure if it was scheme or a talent issue, but he never seemed much involved beyond blocking. (Well and the one fumble that killed us.)