Build the Saints' 3-4 Defense

Still didn’t answer my question. How would his responsibilities as a 3tech in a 3-4 under 1 gap system differ than in a 4-3 3 tech? I’d argue a 3-4 defensive end 3 tech has less run responsibilities than in a 3-4 with there being more defenders at the line. It’s the entire reason most DT/DE tweeters are used in the 3-4 DE position.

Also most of his run defense woes were due to him being forced to play nose tackle in the nickel so cam Jordan could move inside to 3 tech. Make Bresee a permanent 3 tech and he will be fine.
It seemed a bit of a stretch to say that his run defense woes were only because he lined up at NT, but I wanted to check his snaps to see how many times he lined up over as a nose. For a baseline of the player/position he's going to play I pulled up Jalen Carter.

Carter played NT 18 times last year
Bresee 66, down from the 84 his rookie year.

50 fewer snaps at NT probably helps him not be in bad position, but I can't say adding those 50 snaps to 3Tech suddenly makes him a better run defender either.