The other thing people overlook about Shoop's time at Tennessee (on top of the injuries and culture) is how much Butch's offense was screwing him over.
Shoop's stats were much better in the 1st Quarter than they were in the 4th Quarter. Even the 2016 offense, which people (wrongly IMO) viewed as 'great', was harming the defense immensely with a huge number of turnovers, constant series of quick 3-and-outs, and when they did score, they scored very quickly so the D never got much rest.
That Vandy game in 2016 is a great example. People look at our yardage stats and think the offense was fine, but most of those yards came in the 1st half and the 2nd half was filled with offensive ineptitude. This is part of the reason I've said Butch simply doesn't understand game strategy. He doesn't consider that the other team driving the ball for 5 minutes on the defense, followed by a 3 and out series that only last 40 seconds, doesn't give our D time to rest. He just mindlessly tried to run a quick-paced offense regardless of circumstance.