It wasn't the question originally asked, but if you look at the roster position by position and ask where a true freshman has a chance to make the two deep (because as we saw last year with Joe Williams, we have no basis for guessing who may be asked to play just to help out on special teams):
1. I would be very surprised to see a true frosh play at LB or OL. We have depth at both of those positions and we don't have any recruits there that won't benefit from a redshirt year. Having said that, I still can't understand how in the world they burned Samra's redshirt last year to play a few meaningless mop up downs at OG, so I guess I can't rule out that they ask Schafenacker to do that as well.
2. At the skill positions, there is plenty of room for Mariner, at TB, Walsh, at FB, or any of the frosh WRs to make the two deep. Less so at TB than the others, but if Mariner is better than what we have now he will play. At TE, the opportunity will be there for at least one of Myers or Thompson to play if they are ready. Having said that, the walk-on Spencer Parker played on specials last year, and may have a chance to be McQuillan's back-uup. And, at QB, while I would be shocked if any of the true frosh were ready to push Whitmer, with three QBs in the class if any of them is more ready that Cochrane to be the backup, you play them this year. You can always redshirt them next year.
3. On defense, the battle to replace Trevardo is wide open. Could Norris be the guy? Could Frank be the guy? In either case, if Holines (or someone else but just based on measurables he seems the most likely) can play that position, we have a history of playing true frosh WSDEs. Finally, at DB, we have enough players that we don't have to burn a redshirt, but especially CB doesn't require a redshirt year if you're ready. But I doubt any of our guys our.
The bottom line is that, based on our roster and the staff's need to win this year, I would not be surprised if you see more true frosh get a chance to help the team than we've seen yet in the P era. The bigger question is will they be ready to help the team win this season.