I think the biggest question is at RT.
I see three guards and a tackle.
Texas had the same issue after Wickline.
Connor Williams had to start at LT but he was an interior linemen.
As you see with him in the NFL.
Zach Frazier would make one hell of a center when he arrives. He plays Guard in high school but can switch easily. He is a nasty O-Lineman. Reminds me of Dan Moses but longer reach.