That's fine, but does he have the ability to coach THIS DEFENSE into a Top 5 defense?
For example, Fangio's defense was 10-25-3 in scoring the past three years. Do you really believe that there's so much additional playmaking to be derived from this unit?
I do. But that is mostly because I believe that we have two special athletes who are being miscast and misused. I also feel that Vance burns dudes out because he plays them more snaps than he should.
Here is why. In two season under Matt Patricia as an EDGE player, Devon Kennard had the follow stats
Sacks: 7 / 7
Tackles For Loss: 9 / 9
QB hits: 14 / 15
Pressures: 25 / 30
Here are the stats that same player has had since coming to AZ as an EDGE player under Vance.
Sacks: 3/ 0
TFL: 5 / 7
QB hits: 9 / 2
Pressures: 11 / 5
Kennard has not changed as a player. He is still the same guy, in his prime, and in relatively the same position. EDGE in a 3/4.
He has gone from a solid player with a worse cast to a bad player with a better cast. That is what Vance does.
So a solid veteran player goes from 80% snaps to 28% snaps? That is on the coaching. No reason you can't give a player like Kennard reps to keep your 32 old Chandler Jones and 30 year old Markus Golden fresh over the course of a season.