Turn this to matchups by function:
Vols run vs OU run defense: could be disastrous, given Vols OLine (weak) vs Okla DLine (strong). If it weren't for the elusive talents of Hurd, Kamara, and don't forget Dobbs, it would be. As it is, let's call it a clear advantage to OU's D. Vols squeak out barely 100 yds (total) running, good for 7 points.
OU run vs Vols run defense: very similar comments, with very similar results. Okla gets 100 yds (7 pts worth) thanks purely to Perine's talent, elusiveness and power against a very capable Vols rushing defense.
So run game is a wash in points.
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Vols throw game vs OU pass defense: advantage here is to Tennessee, on mostly short-to-medium routes...again because of a limited OLine, Josh won't get enough time to go deep very often at all. He will be sacked a couple of times, and flushed out of the pocket several more. Still, his uncanny ability to scramble for a first down (I know, it's rushing, but I'm counting these broken pass play QB runs as part of the throw game), along with too many high-quality WR & TE targets for OU's D to cover at once, are enough for a total of 300 yards and three scores--say 17 pts.
Sooner throw game vs Vols pass D: almost perfectly balanced. Mayfield has a good arm and a quick eye, plus exemplary ability to keep focused downfield on his targets even while scrambling...he would be able to make things happen if he could find the time. But the Vols' pass rush is just too relentless, and will frustrate him to no end. Some early success will turn sour by mid-game. 250 yards and two scores--say 10 pts.
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Special teams: pretty balanced. Both sides think they have a good mix of skill sets all across the ST game...too early in the season to weigh which is actually better. Gonna have to call this one a wash for now.
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Team discipline: don't know enough yet about the 2015 teams, but Tennessee had a slight advantage in 2013 and 2014 in penalties (1-2 fewer penalties per game) than Oklahoma. Not enough to ascribe a point differential to, so call it a wash.
Home field advantage: standard 3 point advantage to the Vols.
Coaching Xs & Os advantage: too early to tell. Plenty of history on Stoops to know he can be an inspired (if not brilliant) play caller. Not enough Power 5 level experience to be able to judge Jones the same way, though he proved himself more than capable at Group of 5 level. But still, not proven at the top tier yet, so give a 4-pt push to Stoops.
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Sum of game aspects:
-- Vols -- 7 run + 17 throw + 3 home field = 27 points
-- Sooners -- 7 run + 10 throw + 4 coaching = 21 points
I see this game going the Vols' way, but it's gonna be a real fist fight. Neither side is going to feel untested, both are gonna sweat buckets, get battered, and donate some blood to nourish the grass of Shields-Watkins Field.