Have been meaning to pose this question for everyone here for a while. So all of us watched in horror last Saturday when Chuck Bullough dialed up the classic "prevent defense" towards the end of first half only to see the Cougars go 70 yards in 40 seconds, scoring a TD right before the half. If anyone needs a visual reminder on how a prevent defense "works" there is always this:
I guess the idea here is to "prevent" the big plays. Yet we have seen time after time, the offense takes advantage of the old "take what the defense gives ya" cliché and promptly move the ball to get themselves in scoring position. At least from my vantage point it seems like it's usually the defense that ends up getting screwed in this position time after time after letting the O march down the field.
So my question for all X and O junkies is that why do coaches resort to it? To be fair to Bullough it seemed like he didn't use prevent defense against Tennessee in Knoxville when he was bringing pressure till the very end (or was that just Brian Price wrecking havoc?).
Anyway, it appears is this is one of those situations where if there were any real statistics available it would really help everyone understand why coaches resort to this strategy? Are there numbers and study that support conventional coaching wisdom of sticking with prevent defense? This seems to be a classic case where it would be very interesting if there was an understanding based on probability and real statistics on why coaches keep going to this strategy?
Anyone have thoughts or numbers to share?