Endurance is likely to be a major factor this week. LSU has an enormous D Line with only moderate depth. The NT position in particular is vulnerable to fatigue. The starter is 350 lb Tyler Shelvin. We all know that snap count is an issue for Coburn who is slightly smaller. The #2 NT is even heavier, 360 lb true freshman Siaki Ika. There doesn't appear to be much behind them.
The starting DEs are also quite large - both in the 310 lb range. There are good, veteran backups at this position who are still around 300 lbs. I expect a lot of perimeter passes to force these big bodies into long pursuits. Texas doesn't huddle and does a good job of preventing substitutions during drives. If the Horns can keep these guys on the field, they might have to alternate drives rather than plays and fatigue will set in quickly in the heat.
While Texas uses tempo selectively, LSU appears to be committed to (medium) tempo as their standard pace. I suspect this is going to stress their defense greatly. To test this hypothesis I looked at last year's results. LSU's defense only had to play 70 snaps 5 times. Once was SE La which was able to sustain some drives but didn't have to horses to do much beyond that. The other 4 were La Tech, Florida, Bama and aggy.
aggy ran a total of 107 offensive plays, 78 of them in regulation. Once the play count reached 70, the LSU D was never able to stop them.
Bama scored TDs on 2 of their last 3 drives, not counting killing the clock at the end. Those 3 drives; 7 plays for 72 yds, 5-32 and 8-80. They resulted in nearly as many points as the first 8 Bama drives.
Florida also scored 2 TDs late but one was defensive. Their offense did mount a pair of 9 play drives, one resulting in the decisive TD late in the game.
La Tech did most of their damage in the 2nd half as well. 3 consecutive drives resulting in 191 yds on 29 plays for 2 TDs. Their last 2 drives were snuffed out after one first down on each. This game is a bit more ambiguous but also the one where LSU enjoyed the largest talent differential.
Last year LSU struggled on defense anytime the opponent ran 70 plays or more. It looks like fatigue is a very real issue for them. It is one that can easily be aggravated by running tempo on offense themselves. It's part of the reason for the offenses dominating in the Big XII statistically. Obviously this wasn't a problem against a bad, one dimensional Ga Southern offense. Ten 3 and outs and 2 TOs are going to keep the defense well rested regardless of tempo used by their own offense.