AustinWolv - you sure are passionate about the Wolverines
You have no idea.

I prefer a traditional approach on defense with a multi-formation look on offense.
I could actually care less about schemes, as long as players are flying to the ball and causing chaos. I like aggression and nasty attitude on defense. Let players play.

Utah doesn't play traditional, yet they win. Same with Boise St. Same with VaTech. Same with Oregon. Same with with Cincy. Same with OU.
Talent wins games in college, not schemes.

LSU has lost some games they should not have.

TCU has had stout defense as of late and run 3-man fronts, as have Boise St.
If your players are fast, they disrupt the blocking anyway, plus you can put 8 guys in the box but still have coverage. On any given play, you've got blitz possibility from 3 LBs and the 2 safeties......potentially CBs if you run guys out at the snap. Shifting players around can give a 4-3 or 3-4 look easily enough.

Considering half or so of the teams on the schedule play a spread variant, it makes sense to go with speed over girth, especially since you can bring in larger players to play a 4-3 Under look against power teams or sets (or merely shift to a different package within the 3-3), while it is harder to run a base 4-3 and force LBs to cover slots and such when you come up on a spread team. UM did that in the past and got A-B-U-S-E-D, if you don't recall the nightmare of watching Chris Graham chase receivers around.