Matt Eberflus aims to redefine the Cowboys' defense, but criticism emerges about his adaptability and strategies. Learn more.

One Cowboys offseason addition mentions that new defensive coordinator Matt Eberflus's relentless style brings the best out of the defensive unit.

Dallas' defense wasn't good last season but can bounce back quickly with new coordinator Matt Eberflus and annual Defensive Player of the Year candidate Micah Parsons.