Freshmen DB Gentry Williams and RB Gavin Sawchuk are left off the depth chart, but I doubt if they are being redshirted. They were not recruited to sit out a year.
Replacing NT Winfrey will be tough, but I think Johnson and Coe will provide an excellent rotation at that NT position.
Biggest question I have is how good the offensive line will be and if Bebenbaugh gets his linemen playing up to their recruiting rating potential. Most of these guys were 4-star recruits but in my view, they have been "sleeping giants" over the past two years for one reason or another. I can't see them remaining status-quo any longer....and with uncertainty at the QB depth behind Gabriel, it will be even more important to protect him.
While UTEP and Kent State won't be quality opponents, it will be important for OU to play error-free and go deep into the depth chart for playing time while getting good production from every player.
Nebraska's loss to Northwestern, as I see it, makes them a dangerous opponent-with more resolve than ever to win a big game to help reestablish the NU program among the elites. I expect an all-out effort from Frost's team......but if OU plays well and focused, it may not matter.