re: Who will contribute and who will RS?

Each of the last 2 years we've redshirted fewer players than I would've predicted.

Look at last year. We redshirted linemen on both sides (will almost always be the case) and:

Morris - standard for QB
E. Williams - switched positions just before season
Black - would've played if not for injury
Freitag
Griffith - had returning starter(s) at kicker

All DBs, LBs, and RBs played.

There aren't as many open spots for contributors this year as last year, but I expect DBs, LBs, and RBs to play while linemen and QBs to redshrit.