Yes, that is true. Either they have three down linemen, with two edge rushers on the side, or they have five down linemen. In either of those schemes, though, one of the edge guys is a power rusher, that is also good at setting the edge and play the run. That is the role that primarily Zaven Collins, Okwara, and Dimukeje have been playing. Ojulari was supposed to play the more speedy-and-bendy-guy role on the other side, and it was that role that Browning was bought to occupy.
It would be hopeless if they had already given up on Ojulari, and provided that they also keep Browning, it is the other role that is the most exposed. Which is where Scourton comes in.
By the way, before this season, Scourton ran a faster 40 (4.7) than every edge rusher Gannon deployed in his two years in Philly, other than Reddick and Josh Sweat. And about the same as all the edge rushers used by the Colts in the three years Gannon was there, on a defense that he has repeatedly said he is inspired by. So, while you are obviously right that an edge rusher needs to have some speed element, I think we can conclude that Scourton has that in Gannon’s world. Also, Darius Robinson ran 4.95, so I am not sure where you get that comparison from (they are also different playing style and different body types).
