4-2-5 if you have DE's or DT's who can get to the QB. You have to, have to, create pressure either at the point of the pass (QB), or point of the reception (WR/TE/RB). So if you can create pressure with 4, then it's 4-2-5.
If not, then it's 3-3-5. Here, you concede the pass rush, and focus on using 3 LB's/Hybrids to shut down the 5-7 yard range between the hashes, and trust the back 5 to cover the rest of it. This is an oversimplification...there are too many nuances and details to cover here...but that's the basic idea.
I have no idea what UT will field, or how well they will play it. But I do think that, for the first time since Lane Kiffin set foot on UT's campus, we have a coaching staff that is going to bring a winning attitude and strategy to Volunteer Football. As an aside, I think Lane pissed away a chance to do great things at UT. That being said, I think Coach Heupel has the opportunity to make us all glad that it played out the way it did. It hinges on too many factors and variables to list here, but I do believe that we've (finally) got a HC who knows how to win, and has proven it at his previous jobs. Let's hope he raises the bar at UT. If he does, he'll have his pick of players, and coaches, within 3 years. If so, UT is back. On the national level.
Like it or not, he's our coach. If you're a true Vol fan, or a VFL, then...like me...you're hoping he comes out of the gate like a dog with its' ass on fire. So...
Go Vols.