I agree. A defense doesn't have to have playmakers at every position in order to be great; but of the ones who are not playmakers, they must play their assignments. I think Williams can do that, and I think he is strong enouch that teams won't be able to abuse us by running toward his side of the ball.
That being said, a great defense is able to generate a pass rush from it's front 4. Vereen won't be able to get that done by himself. We need someone else to emerge.
Don't disagree with the concept, but give me a more explosive, more talented DE capable of disrupting an offense with his ability to penetrate and pressure a QB in the pocket. How about we find the guy that other players feed off rather than having a guy that needs better players around him to be effective.
I don't think Williams is that guy. I'm hoping that Hendrix or another player on the roster is.