Look at the final 4 teams, they all had dominate rushing attacks with 3 of them having elite centers, the 4th having an elite scheme. DC's are figuring out how to slow down the passing game, you better be able to run the football to counter that. We already know Dak struggles when teams play extra men in coverage, to counter that is to run the football and force teams to come out of those shell coverages. Last time this Cowboy team was truly legitimate is when teams were scared about stopping the run and being able to get off the field.