It’s an interesting question because yes, they do work together, but against quarterbacks like Peyton Manning and Tom Brady, who get the ball out quick, it’s hard for pass rush to get to them in time, at least from the edges.
So in today’s NFL, where the receivers have great size and all the advantages once they get past the five-yard contact window, you definitely need to have multiple cornerbacks who can be physical and press at the line of scrimmage.
But I also think that interior pass rush is vital as well. The guys on the inside can make a difference against quarterbacks who get the ball out quick. I’ve been beating this drum for a while now and I think the Pats have some promising pieces in place with Chris Jones (in a sub-package rotational role), Armond Armstead, and even Chandler Jones sliding inside.
I still dream of what a guy like Dominique Easley could do as well. He explodes off the ball and would really provide instant chaos in the quarterback’s face.
Those are the elements you need and you need them consistently. Especially in the playoffs against the best quarterbacks.