Epic Drop: Top 12 signs your NFL color analyst is a loose cannon

Today's list is inspired by the Five Tool Ninja, who has heard people complain about the Prevent Defense That Prevents You From Winning just *one* too many times. He's got a point -- if it's such a god-awful idea, why does every single NFL team do it? They might just know more than, say, Emmitt Smith. Then again, so might the fish in my aquarium...