I just dont follow what youre saying. You say his role was XYZ. Fine. But fact remains he played 34% of the defensive snaps. So 66% of the time his role was nonexistent and irrelevant.
His loss hurts depth and maybe a couple of plays here and there in a game, but to say missing Dareus’ 34% of playing time is the main reason our run D sucks now is not accurate imo.