I will have a much more detailed analysis if Odum or Walter are hired, but since they are unknowns in the ACC, I will share a few preliminary thoughts.
1) They run a 3-4.
2) The 3-4 is mobile. While two of their DT starters are listed as 300 pounders, they look like a small, quick group that slants.
3) The linebackers activate downhill hard. Seven guys in the box getting up the field.
4) They play a ton of press coverage. I would wonder if they would bring David Gibbs as their DB coach. Gibbs uses a ton of similar techniques with man to man, although I have not seen as much robber. They also get flagged for PIs or should get flagged for PIs often.
5) Their safeties do not activate in the run game. I would envision VT would recruit natural corners to play safety, which means there needs to be 5 starter-ability corners on the roster every year.
I have no idea if they are even candidates for the position, but because their name has come up, I don't think the growing pains would be as bad as some other systems. I think safety play would be the biggest adjustment. Pollard and Crawford would be the 4/5 techs, and I assume Fuga would work behind Hewitt as the nose. They also shift into 40 fronts, so flexibility would be a key. DEs I would expect would all become OLBs, but their jobs would be similar to what we saw this year, although they would force plays to the middle much more often instead of spilling them wide.