The running back for them, Kelvin Taylor is the son of Fred Taylor, the NFL running back. He was forced to play as a true freshman at the end of the year because their top 2 RB's went down. Jones will be back from a knee injury in the fall but I expect him to back up Taylor who played like a stud (111 carries for 508 yards when they had a QB (Morningwheg) who couldn't throw the football and everyone in the stadium knew they were going to run it. They also get Mack Brown back who had 543 yards on 148 carries. That means they'll have 3 big strong backs to run the football in their new spread offense.
As far as QB's, they get back Tyler Murphy and Jeff Driskel so they'll have 2 experienced senior QB's back. Just the return of those experienced skill positions alone will make them better. Add in the WR's they get back, plus the ones that are coming in as recruits and they'll have the skill position people to succeed.
With their new OC Roper from Duke, they're going to run an uptempo offense. Given that their defense expects to be strong again and the fact that they get more of the defensive starters back, I expect them to be have an Auburn-type resurgence this year. Not a national championship, mind you, but once again towards the top of the SEC East, rather than the bottom.