Dallas DC Dan Quinn spoke recently, and said that the base defense of the Cowboys was going to be more like a 3-4. The actual quote is this:
As far as in the base packages go, it will look more like a 3-4 look, and that would have been consistent whether it was the team last year or my times with Atlanta as well. But more often than not, with most teams, the nickel packages, which teams play, I’d say, close to 60% or 70% of the time are more out of a four-down.
https://twitter.com/therealmarklane?lang=en
Some people have taken this to mean he’s going to a 3-4, and that could not be further from the truth. An examination of the coaching tree of Monte Kiffin should make that pretty clear, and we’ll provide some evidence that in fact the base defense will remain the same as the Marinelli years, even if it’s going to be tweaked a bit.
In the late 1970s Pete Carroll was a defensive assistant at Arkansas, where the head coach was Lou Holtz and his DC was Monte Kiffin. Kiffin was and is a proponent of a 4-3 under defense that he felt could stop the run and also rush the passer. In a coaching clinic recorded on Jerry Campbell Football, the effect Kiffin had on Carroll is marked.
After all the years I’ve been in football I’ve never coached anything but the 4-3 under defense. So I know this defense inside and out. I know the good side of the defense and I know the problems and weaknesses of this defense. I run it with one gap principles but can also make it work with some two gap principles.
https://jcfb.forums.net/thread/14894/the-4-3-under
So Dan Quinn is on the Kiffin tree as so. Kiffin -> Carroll -> Quinn. Marinelli is on the same tree, serving as a line coach with the Buccaneers when Kiffin was their defensive coordinator. More recently, Marinelli has been a line coach and defensive coordinator with various assignments with the Cowboys, and Marinelli’s 4-3 is what they are most familiar with.
So, some simple conclusions. The base of the C owboys base is the 4-3 under that the Cowboys have played for years, and the base is likely to be a version of the 4-3 under tweaked to have some two gapping added to the front.
But is it? Dan Quinn is known for tweaking his fronts to put his best players on the field, and he will find his best 7 over time. There are two fieldgulls.com articles (here and here) which show that he tries things in order to get best fits. The latter article talks about the successful adaptation of Red Bryant to becoming a two gap defensive end, but also that DQ that year was going to let Red Bryant 1 gap some.
Bryant said he’ll return to being more of a penetrating, one-gap defensive end and playing mostly over the right tackle.
https://www.fieldgulls.com/football-breakdowns/2013/5/31/4382318/the-seahawks-and-the-4-3-under-front-winds-of-change
Dan Quinn doesn’t let fronts get etched in stone. He crafts them.
There is a great article in Sports Illustrated that gives us some language to use for the component parts of a Seattle Hybrid defense. If the front from the defenses POV and from left to right is 4i-1-3-9, then the position names are BIG END, NOSE, 3T and LEO. In the hybrid, the BIG END is a two gap player, but because it shares so many component parts with the 4-3 under one gap, it does not have to be. Letting a BIG END 1 gap is pretty simple. The Mike linebacker just has to cover the strong side B gap. Let’s let Pete describe the left over gap assigments in the 4-3 under one gap.
The front five players I mentioned are playing aggressive defense with their outside arms free. The only thing we can’t allow to happen is for them to get hooked or reached by the defender. This alignment leaves open the strong side B Gap and the weak side A gap which are played by the Mike and Will linebackers.
https://jcfb.forums.net/thread/14894/the-4-3-under
A lot of this exercise is to eliminate any nonsense that suggests Dallas is going to a base 3-4 and DeMarcus Lawrence will have to be an OLB. He doesn’t have to be anything but DeMarcus, and he has a proven ability to defend the run as a one gapping defensive end. For that matter he might be able to two gap as well, though the addition in free agency of guys like Urban and drafting men like Osa Odighizuwa suggest perhaps a rotation at BIG END.
More importantly to me, most of the new defense should seem familiar to the veteran players. Going from a 4-3 under one gap to a hybrid isn’t a huge shift. DQ will have an off season to install, which the unfortunate Mike Nolan did not. The biggest shift is in the players the new regime likes, what physical traits they emphasize.