If you are going to penetrate, you better make sure that everybody penetrates and that you guess right about where to penetrate a lot. I don't think Malzahn is some kind of genius, but he certainly understands how to identify a weakness on defense and create numbers to attack it. He is also very adept at using misdirection to get defenders to take them selves out of the play.
I think you probably do well to wall off their OL IF you have the personnel to do it. I think we would have fared much better with Cody or Jesse Williams in the middle and able to hold both A gaps. Then the dive is not nearly as successful, and everything in their offense is predicated on the success of the dive. Kind of like the fullback dive out of the wishbone. If you can stop that with a "normal" personnel group it gives you many more players to chase down the other two options.
As I said earlier, you also need a couple big, physical CBs that you can simply turn loose in man coverage, leaving 8-9 defenders otherwise.
My $0.02, which is probably not worth that.