If your expectation is to stop every competent offense every drive late in games, go cheer for Alabama.... Oh wait they gave up 2 long drives. Better go with Georgia... for now.
You can keep spinning this by picking out the opponents successes late in games. That fact is that will always happen. You will not force 3 and out every drive and keep every team off the board late in games. No one does. That has nothing to do with scheme.