1T/run stuffing DT is irrelevant. If you can't rush the passer, you are a liability on defense. Stopping the run is exclusively about scheme and team discipline - 1 player does not change a run game.
you're right. it's not like ringside boxing as a solo human performance.
It takes a team effort to stop the run. it's also about how the ends handle the edges (see Quinn) and how the LBs handle their own duties vs run,(see LVE, Jaylon, Lee)
ditto with safety run support.
But when you get a ' dominant " run stuffer in the interior of the middle, that helps begins the dynamics in how teams have to run against you.
it limits what they can do to you vs the run.
Instead of being able to handle a top notch DT with a single blocker, if that OL unit has to scheme and double team two blockers to that side for just one DT
which that should allow other defenders to be freed up.
Those fattie guys wont move much, but teams wont be able to move them either. Since their role is so dependent upon what they can do with their size-muscle and bulk, they're more suited for
2 gap scheme vs one gap that depend much more on movement or " quick-twitch" as Marinelli likes to term it.
Vs 2 minute hurry offense, and the fact that pass rush just isn't their game, they wont be much help for you in that area, but against a premium ball carrying back or rushing team, they normally give
your best chance in helping subduing and minimizing that rush attack.