No unit in the NFL has gone through a bigger singular transformation this offseason than the Dallas Cowboys' defense. It's like the ugly girl who you went to college with who shows up to the 10-year reunion looking like a completely different person and is now one of the most beautiful people there.
That's the best way to characterize just how the Cowboys have fixed their defense. The unit was historically bad under Matt Eberflus, so they fired him and replaced him with a first-time play-caller in Christian Parker, who already has the Dallas defense in a better spot than his predecessor ever did.
However, that doesn't mean that The Star is going to be home to one of the NFL's best defenses overnight. Given the scheme changes and the many personnel changes Parker made this offseason, it would be hardly surprising if it took a couple of weeks for the defense to find its footing this season.
The Dallas Cowboys defense will need time before getting into a groove
And it sounds like not everyone has high hopes for this defense. While going over five overrated and underrated teams entering the 2026 season, The Athletic's Mike Jones (subscription required) is using the defense as a cause for concern even though it'll really be hard to top the disaster that was Eberflus' 2025 squad.
"The Cowboys will have to jell in a hurry on defense, where new defensive coordinator Christian Parker inherits a unit that struggled mightily last season but added plenty of new faces, including veterans like pass rusher Rashan Gary, cornerback Cobie Durant, linebacker Dee Winters and rookie linebackers Malachi Lawrence and Jaishawn Barham," Jones wrote.
Jones' logic is sound. Dallas is home to one of the NFL's highest-octane offenses, and they can't afford to always have their defense playing catch up. And the more the Dak Prescott-led offense is embroiled in shootouts in 2026, the greater the toll it'll take on a unit that has so many new faces.
In addition to Parker and a completely new staff, America's Team added a lot of instant-impact talent to the unit. They brought in Rashan Gary and Malachi Lawrence off the edge, Jaishawn Barham and Dee Winters at linebacker, and Caleb Downs, Cobie Durant, and Jalen Thompson for the secondary.
On paper, that sounds a lot better, but sometimes it takes time to click. After all, Rome wasn't built in a day. The Ben Johnson-led Chicago Bears were 2-2 at the time of their Week 5 bye last season, but they won seven of their next eight games and ultimately managed to win the NFC North.
This is what the Cowboys could deal with in 2026. The offense will pick up right where they left off in 2025, so it might take a defense dealing with a scheme change time to officially click. There will be a learning curve early in the season, so there is no reason to panic and start demanding instant results.
But the Cowboys don't need their defense to be elite. All they need is for their defense to be in the low-20s, and they should make the playoffs. So even if they start slow, expect Parker's group to improve as the season progresses before becoming the savior we expect him to be.
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