Honestly... and I'm fighting "optimism" now similar to before MU and USCe... I'm around 80% right now. Their run D is absolutely awful. Maybe better than MU. Not as good as USCe. UT's run D is decent. Comparing worst games, OM was trampled for 350 yds by Arkansas. UT gave up 283 to UF. I don't think Arkansas compares well to UF in offensive talent or as a rushing offense. That seems to confirm that UT is a better D and much better run D.
Both teams' offensive success has depended on running the ball so far. Both are very good O's. UT has performed considerably better on D.
A more obscure stat is that UT is 2nd in the nation in TFL's and first in the SEC. Getting Ole Miss behind the sticks could inhibit their run game and give the Vols a pretty big advantage.