One would hope that Blair will overcome what ever his problem is and at least be serviceable next year. If that happens, Thomas could compete with Crowder at center and have an off season S&C to develop at his natural position. Robertson will be much better next year and the back ups will have another year of development. Jackson will return for his 5th year and who knows about the freshman class.
The problem now is guys playing out of position. We don't have a real tackle ready to play, the whole right side is freshmen and the backups are guards and not tackles. Next year will be better, but how much is anyone's guess.