Lu, could you compare some screen shots of our old 4-3 defense (Schiano/Shannon) in the early 2000's. Just curious how the alignment and depth compares. I always remember our safeties playing very deep, although I believe our front was meant to penetrate, so it would be interesting to compare and contrast styles.
Good idea. Just a quick answer as I have to get back.
Two things:
1) As I said in the OP and you stated above, different front. We were a big time upfield DL. Some would say guys like Mcdougle were too upfield and lost contain at times. It changes the flow and timing of a play, naturally.
2) Offensive formations have changed a lot. Zone-read is popular now. 4WR sets are as common, sometimes more, than 21 personnel groupings. The easiest way to compare is to compare how we look against 21 personnel in the original post (so picture #5 from the top), to the below:
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Like I alluded to, the numbers aren't altogether THAT different. It's the style and broader philosophy. In the picture above, we're headed upfield. 2 of our LBs are standing up at the end of the LOS. The remaining LB isn't at 5+ yards. Our Safeties can be 30 yards deep and I wouldn't care because they're not being asked to fly down and set the edge for the defense. See some of the differences in theory? It's riskier, no doubt.