The defense of the Dallas Cowboys took a nice step forward when Dan Quinn arrived in 2021. During his time with the team, the defense was one of the better squads in the NFL in generating pressure and taking the ball away. Quinn left for a head coaching job in Washington and the team replaced him with former Cowboys defensive coordinator Mike Zimmer. Under Zimmer, the defense played admirably considering how decimated they were with injuries. It was a mixed bag with both outstanding and atrocious play by the defense last year.
The Cowboys have again changed out their defensive coordinator and brought back another former Cowboys coach, Matt Eberflus, who was their linebackers coach from 2011-2017.