Cowboys Defense Goes From Dominant To Disaster In Cardinals Loss

ARLINGTON - For 30 minutes Sunday afternoon, the Dallas Cowboys looked like they'd finally figured out how to play defense.

For the next 30 minutes, they looked like they'd forgotten everything they learned.

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The result? A humiliating 33-30 overtime loss to the Arizona Cardinals at AT&T Stadium that should have Cowboys defensive coordinator Christian Parker searching for answers and head coach Brian Schottenheimer wondering how his team managed to blow another winnable game.

It was the ultimate tale of two halves for a Dallas defense that went from dominating Arizona's offense to getting embarrassed by a backup quarterback and a running back who suddenly looked unstoppable.

And the numbers tell an ugly story.

The Cowboys allowed just three points in the first half. They surrendered 27 in the second half and another three in overtime.

That's not defensive improvement. That's a collapse.

Dallas couldn't have asked for much more from its defense during the opening two quarters.

Rookie safety Caleb Downs delivered a critical fourth-down stop at the goal line. Linebacker Shemar James intercepted Jacoby Brissett and returned the football to the Arizona 5-yard line, setting up a Cowboys touchdown.

DeMarvion Overshown later forced a fumble that rookie LT Overton recovered, giving Dallas another takeaway before halftime.

The Cowboys were physical, aggressive and disciplined. They pressured Brissett, controlled Arizona's running game and repeatedly gave Dak Prescott's offense opportunities to build a commanding advantage.

Dallas led 14-3 at halftime and extended that advantage to 17-3 early in the third quarter.

Then Arizona made the adjustment that completely changed the game. ... Gardner Minshew replaced Brissett.

And suddenly, Parker's defense had absolutely no answers.

Minshew completed 17 of 23 passes for 188 yards and three touchdowns without an interception, posting a 137.3 passer rating.

But the most embarrassing part wasn't what Arizona accomplished through the air.

It was what Tyler Allgeier did on the ground.

Allgeier torched Dallas for 147 rushing yards on just 11 carries, including touchdown runs of 63 yards and another explosive 52-yard gain.

The Cowboys repeatedly missed tackles, lost containment and surrendered enormous chunks of yardage to an offense that had accomplished almost nothing during the first half.

Arizona scored touchdowns on four consecutive possessions to close regulation.

Four straight.

Against a defense that had spent the opening half looking like one of the NFL's best.

Even when Prescott answered with a rushing touchdown and Brandon Aubrey connected on important field goals, the defense couldn't protect the lead.

Minshew eventually marched Arizona 80 yards in eight plays, finding Michael Wilson for a 13-yard touchdown with six seconds remaining.

Chad Ryland missed the extra point, temporarily saving Dallas from losing in regulation.

But the reprieve didn't last.

After both teams failed to score on their opening overtime possessions, Arizona moved into field-goal range, and Ryland connected from 42 yards to finish the comeback.

The Cardinals piled up 467 total yards, including 202 rushing yards, and sent Dallas to 3-5.

And while the Cowboys offense deserves criticism for producing just 261 total yards, this loss belongs squarely on a defense that couldn't finish what it started.

Schottenheimer acknowledged the dramatic turnaround afterward.

"It was a tale of two halves, for sure," he said.

He also pointed to the team's inability to finish, explaining that the second-half execution simply wasn't good enough.

He's right.

The Cowboys have spent weeks talking about improved communication, better tackling and greater discipline under Parker.

And for one half against Arizona, those improvements appeared real.

But good defenses don't disappear when the opposing team changes quarterbacks.

Good defenses don't surrender four consecutive touchdown drives.

And good defenses certainly don't allow a 14-point advantage to evaporate against a team that entered the afternoon with two victories.

The Cowboys showed what their defense can be in the first half.

Then they showed exactly why nobody should trust it in the second.

At 3-5, Dallas is running out of time to turn promising stretches into complete performances.

The Cowboys don't need another good half of defense.

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They need four quarters.

Because Sunday proved that anything less can turn an apparent victory into another embarrassing defeat.