Thanks for your work on this!
You said (paraphrasing) that it seemed like we did a lot of zone coverage, and then we'd watch the QB while staying in our zone while letting guys run their routes through our zones. I've noticed a lot of the same stuff too. Aren't you supposed to cover the guy as he goes through your zone and then pop loose back into your area if the receiver exits? It seems like a lot of the time we're taking up space and just there to make the tackle.
Also, at 5:45 into the video, we're facing a 2nd and 9. We line up 7 of our 11 mean beyond 6 yards off the line. So we all but concede 6 yards on the play. That's why our 3rd down defense conversion rate is so bad - we're leaving ourselves with tons of 3rd and 1 and 3rd and 2.