You're kind of right, but he plays his heart out on the field on every snap. You'd think he doesn't have the conditioning for it, and truth be told, he probably doesn't, but he still manages 100% on every snap. He is a nose tackle that loves playing football. He's a nose tackle that loves playing nose tackle. That's hard to come by.
I was confused about what defensive scheme they ran as well, but from what I was told, they run the 4-3. I always thought it was 3-4, but I guess I was wrong.