How Dallas attacks their defense will tell the tale...
Despite all the team’s success, though, Quinn has yet to implement a defense as successful as what he had with the Cowboys. Coming into this matchup, Washington ranks 23rd in both EPA/play allowed and defensive DVOA. Only six teams are giving up more yards per play than Washington, though they rank 14th in scoring defense.
Quinn isn’t calling the plays on defense, as he did in Dallas. He’s handed that off to Whitt, who was his most trusted assistant with the Cowboys and also worked with Quinn in his final season as the Falcons head coach. This is Whitt’s first year as a defensive coordinator, and his first time calling the plays, though the overall scheme remains virtually identical to what the two coaches were running in Dallas.
Fundamentally, this defense plays with four down linemen that are all tasked with rushing the passer. Behind it, this scheme aims to take away the middle of the field and primarily plays Cover 1 or Cover 3. As was the case in Dallas, Quinn’s Commanders play man coverage at one of the highest rates in the NFL.
https://www.bloggingtheboys.com/202...-defensive-scheme-dan-quinn-dorance-armstrong