It seems the whole league is changing to a 3-4 these days, and there are plenty of those system gurus on this list. But the best coordinators are the coaches who can adapt the talent at their disposal and attack an offense in a variety of ways.
RealScouts,
Sporting News' team of former NFL scouts, rank their top 20 defensive coordinators:
10. Paul Pasqualoni, Dolphins. Bill Parcells and Tony Sparano love him, and after watching that turnaround last year, who are we to argue? Pasqualoni has all the requisite knowledge and adaptability skills that make him an asset within any scheme, but he is an old-time coach who can also teach technique on an individual level. Joey Porter's
career was over until Pasqualoni arrived in Miami.