He's too much new school and too much of a 'sweet' player to take full control of the Cowboys defense.
Old School linebackers: Lawrence Taylor, Harry Carson, Willie Lanier, Mike Singletary, Ray Lewis...they are not specialized besides effectively being immediately aggressive. They were in the play before they were blocked. Parsons gets blocked a lot, and isn't nearly as dominating as old school linebacker was for their team. That was five players who met every inch of the requirement. He better commit more within himself and less into talking about it. Do it!