I would absolutely love the idea of bringing in Pryor.....if he were willing/capable of playing special teams and a little WR like Brad Smith did for Schottenhiemer in New York.
Talk about a boost to the running game. A wildcat package with him keeping defenders honest or running himself would be a boon for this offense, IMO.
Then again, I go with the Mike Holmgren thought process that believes one or more backup QBs should be able to do something with his feet given the limited reps he gets throughout the week.
Hill and Davis would still be the go to guys, but Pryor could have a few packages each week with Austin and one of the other RBs. With some creativity, It could be a matchup nightmare and something else for opposing defenses to prepare for each week.