They do have those guys returning but they are presumably going to be running a completely different style of offense than they have been. We've seen first-hand how that transition can be difficult.
Also, I'm not sure they exactly "whooped" our front seven last year. They had nearly a third of their rushing yards on two plays. On their other 50 carries they netted 192 yards which is still a big number but only 3.84 per carry which isn't terrible. Not great for us but not exactly a whoopin'. They got a lot of chunk plays and completed over 70% of their passes for 8.2 ypa. That was a whoopin', but not as much on the front seven.
I hope we win that game, but if we lose I won't be surprised.
Don't care how you do the math, but 285 yards on the ground, with a 5.5 yards is a whoopin where I'm from.
https://www.espn.com/college-football/matchup?gameId=401247321