The butterfly effect suggests that a small change in one part of the system can have a large effect on another part. The Steelers defense is bringing the pressure. They’ve racked up the sacks. I read articles stating they’ve blitzed more than any other team thru the first two weeks. While pressure is a strength, unproven QBs D Jones and Driskel carved up the secondary. To be a blitz, the additional defender has to come from somewhere. That somewhere leaves a gap in the coverage. Risk versus reward. If they get the sack, great. If they don’t, there’s vulnerability in the coverage. So, how much of the tendency of the D to blitz has contributed to giving up first downs, big plays, and touchdowns? How much of one DB being out of position is related to having too much field to cover? Certainly not every completion the D gives up is during a blitz, but sometimes they do. Can this defense not get pressure rushing just 4?