Snakehead
Hall-of-Famer
Online
I agree that sometimes a young player gets too much flack, but being dead last in a category out of over 200+ players is worth keeping an eye on.
Here are the pass rush grade ranks, filtered for DT's with at least 20% of max pass rush snaps (120 players total):
30. Nathan Shepherd
67. Khalen Saunders
77. Bryan Bresee
Here are the former Saints:
51. Malcom Roach
61. David Onyemata
79. Kentavius Street
106. Shy Tuttle
Shepherd has been a good value pass rush wise, and Bresee is in a good spot for his experience level. For those wondering why Bresee would be ranked so low despite the sacks, it's likely driven by win rate--how often does he beat the guy in front of him. Coming free on a stunt won't give as high a grade as beating the guy in front of you before the QB can complete his dropback. Bresee is 81st for win rate at 6.1% (Shepherd is 34th at 9.9%). The league leader is Milton Williams at 18.5%, followed closely by Chris Jones at 18.1%.
DT's take longer to develop than other positions. All of the guys you listed are veterans in their prime who have had time to develop. I'll be curious to see what Bresee's grade is when he's in his prime a few seasons from now.