oh, I don't disagree. quinn was down right awful agains the run...Gregory maybe better than him, but better than quinn doesn't make him good....he was very average to below average against the run, most often because he didn't follow his assignments and was too aggressive in trying to pass rush, and would get washout to the outside giving up inside lanes.
That is not true. I just re-watched Gregory's snaps from 6 games in 2018. He was very good against the run.
I don't know where the narrative that Gregory was not good against the run came from.
Obviously with any player there were a couple of ugly snaps for Gregory but the vast majority of his snaps vs the run were very good.
Gregory has an amazing ability at his size to take on and shed blocks and to get push on OLinemen.
Fans often don't watch with an understanding of the scheme and player assignments.
In 2013 when Kiffin/Marinelli came to the Cowboys, fans thought DWare had fallen off a cliff against the run.
In reality, in the Marinelli defensive scheme, the RDE often goes inside abandoning outside run contain. It's in the play call.
It is generally the LB behind the RDE that is required to play outside contain when the RDE goes inside.
Unfortunately, like everything in the Marinelli scheme, it's very predictable based on the alignment of the DTs/LBs/SS and down/distance.
In the Marinelli scheme, the requirements are different at LDE. The LDE generally plays a tighter split and generally does not have a LB specifically paired with him where they take inside/outside or outside/inside.
The Seahawks years ago played a similar style and took it to an extreme with Avril at RDE and LB Bruce Irving often playing RDE on passing downs. They had 330 pound Red Bryant at LDE.