Cowboys vs. Cardinals: How Gardner Minshew Exposed Dallas' Defense | Broaddus's Scout's Eye

The Dallas Cowboys appeared to be in control of this game until Arizona made a change at quarterback.

With 1:35 remaining in the third quarter, and Dallas leading 17–3, the Cardinals replaced Jacoby Brissett with Gardner Minshew. What followed was one of the most disappointing defensive collapses I've seen from this Cowboys team.

After going through the fourth-quarter and overtime film, the biggest takeaway is how quickly Arizona identified the weaknesses in Dallas' run defense and secondary.

The Cardinals attacked the edges, created favorable matchups against linebackers, exploited confusion in coverage and took advantage of missed tackles.

Minshew provided the spark, but Tyler Allgeier was just as important.

Arizona finished with 147 rushing yards from Allgeier on 11 carries, with 143 coming in the second half. Minshew completed 17 of 23 passes for 188 yards and three touchdowns.

Here's what stood out on the tape.

Tyler Allgeier Exposed the Cowboys' Run Defense

The 63-Yard Touchdown Changed Everything

Minshew's first series began with a seven-yard completion to DeAndre Hopkins, but the play that changed everything came on the ground.

Allgeier took a handoff up the middle and broke loose for a 63-yard touchdown.

Dallas had seven defenders in the box, but there were problems with the execution.

Caleb Downs came off the edge unblocked but failed to make the tackle. Shemar James stepped up and was blocked wide, while Donovan Wilson was left trying to fill the opening.

The initial missed tackle allowed Allgeier to get into the secondary, where DaRon Bland and Malik Hooker were left trying to chase him down.

They couldn't get him on the ground.

That's a play where the defense has to make the initial tackle. You can't allow a running back to break through the first level and turn an ordinary handoff into a 63-yard touchdown.

The 52-Yard Run Was Another Breakdown

Arizona came right back with another explosive run on its next possession.

This time, Allgeier took a counter to the left side and gained 52 yards.

Hooker was able to turn the play back inside, but there was nobody available to make the stop. James and Justin Barham were both trapped inside, while Durrell Robinson and Downs were blocked on the edge.

Bland eventually pushed Allgeier out of bounds.

The problem was that the Cowboys never got the play under control.

Arizona was finding ways to create space on the perimeter, and Dallas wasn't responding quickly enough.

This wasn't simply a matter of one player getting beaten. It was a breakdown involving the entire run fit.

Arizona Found Ways to Get Allgeier the Football in Space

One of the things I liked about what Arizona was doing was how it used Allgeier as a receiver.

On a 17-yard completion, the Cardinals used two receivers crossing inside to create traffic and open up the flat for Allgeier.

Dallas was in man coverage, and Donovan Ezeiruaku was late reacting to the release.

Hooker eventually made the tackle, but the Cardinals had created exactly the matchup they wanted.

Arizona continued finding opportunities to get the football to Allgeier away from the line of scrimmage.

On another completion, Allgeier gained 14 yards by working between James and DeMarvion Overshown. The Cardinals used Michael Wilson to occupy James, opening space for Allgeier to work underneath.

That's a good design.

The Cowboys have to recognize when an offense is using one receiver to occupy a defender and create a favorable matchup elsewhere.

Trey McBride Found the Soft Spots in Dallas' Coverage

The Cardinals also did a good job of identifying where Dallas was vulnerable in coverage.

On a 17-yard completion to Trey McBride, Minshew initially looked toward Wilson before coming back to Allgeier in the flat. He then found McBride working behind James and in front of Wilson in the middle of the field.

Dallas was having trouble keeping track of the passing concepts as the Cardinals moved between formations.

Later, McBride gained another 14 yards against a two-deep zone look.

He ran an angle route inside, finding space between the safeties and to the right of Overshown.

That was a difficult matchup for the linebacker because McBride was able to change direction and attack the open area in front of the coverage.

The biggest problem came on McBride's touchdown.

There appeared to be confusion between Overshown and Malik Hooker about their coverage responsibilities. It looked like some type of man coverage with two safeties involved, but McBride beat a stumbling Overshown and was left wide open.

Minshew never had to look anywhere else.

When an offense can identify that type of confusion and attack it, the defense has to make adjustments.

Michael Wilson Took Advantage of the Secondary

Michael Wilson became another major problem for Dallas late in the game.

On one 21-yard completion, Minshew stood in the face of pressure from Quinnen Williams and delivered the ball before Wilson even broke on his route.

Bland was in good coverage, but Minshew put the football in the right spot and gave his receiver a chance to make the play.

There was another important completion of 27 yards against man coverage.

What stood out to me was that Porter wasn't on the field for that play. Wilson came out of the boundary, created separation and made an outstanding adjustment to the football.

That is something Dallas needs to evaluate.

Joey Porter Jr.'s presence and how the Cowboys deploy their cornerbacks matter when they're dealing with receivers who can win one-on-one.

The Cardinals continued attacking Wilson late, and the game-tying touchdown was another example of communication breaking down.

Wilson drove inside for a 13-yard touchdown. James appeared to pass him off to Donovan Wilson, seemingly believing the coverage had bracketed the receiver.

That wasn't the case.

Wilson was able to finish the route, and Minshew found him for the touchdown with six seconds remaining.

The Cowboys had the coverage situation they wanted, but the execution wasn't there.

Missed Tackles and Poor Communication Became Costly

The other recurring problem throughout this stretch was Dallas' tackling.

On a seven-yard red-zone screen to Wilson, Durant threw his body toward the receiver's legs instead of wrapping up. Wilson was able to advance the football to the 1-yard line.

On another completion to Allgeier, Downs was late reacting to the throw in the flat.

There was also a huge play late in regulation when Bland missed Allgeier in space. Allgeier was able to get out of bounds with 27 seconds remaining, stopping the clock and preserving Arizona's opportunity to continue the drive.

That was a significant mistake.

The Cowboys have to make those tackles.

You can have the correct coverage, get the ball underneath and put a defender in position to make a play. But none of that matters if the defender can't finish.

Arizona consistently made Dallas pay for those mistakes.

The Cowboys Had Their Moments in Overtime

There were some encouraging defensive plays in overtime.

Dallas initially forced Arizona into a three-and-out.

Quinnen Williams generated tremendous interior push to help bring Minshew down for a six-yard loss. On the next passing opportunity, Malik Hooker made an outstanding play to knock away a throw intended for McBride.

Overshown then made an excellent open-field tackle on DeAndre Hopkins after a seven-yard completion, preventing another potentially explosive play.

That's the type of defensive execution Dallas needed more consistently throughout the fourth quarter.

But the offense couldn't take advantage of the opportunity.

After Dallas punted, Arizona got another possession and went back to its running game.

Allgeier picked up 11 yards on a third-and-short run, with both James and Overshown getting blocked. That helped move the Cardinals into more comfortable field-goal range.

After working the ball closer, Chad Ryland connected from 42 yards to end the game.

Dallas had a chance to get off the field and give its offense another opportunity. Instead, Arizona found just enough room on the ground to finish the job.

What Went Wrong After the Quarterback Change?

What concerns me most is that the defense had been playing well before Minshew entered the game.

The Cowboys had generated pressure, created turnovers and limited Arizona's offense. But once Minshew came in, the Cardinals found a different rhythm.

There were several things I would point to:

• Run defense: Allgeier repeatedly found space on the perimeter and took advantage of missed tackles.

• Linebacker coverage: James and Overshown struggled at times to account for Allgeier and McBride.

• Secondary communication: There were too many instances where defenders weren't on the same page about passing off routes.

• Tackling: Dallas allowed short completions to become significant gains.

• Situational execution: The defense couldn't consistently get off the field when the Cardinals needed critical plays.

The quarterback change certainly mattered, but Arizona didn't win simply because Minshew made a few good throws.

The Cardinals identified weaknesses and attacked them repeatedly.

THE SCOUT'S EYE

When I go back through this film, I keep coming back to the same thing: Dallas had opportunities to finish this game defensively, but it couldn't execute when it mattered most.

Allgeier was able to create explosive runs because the Cowboys weren't consistently fitting their gaps or making tackles.

McBride found space against the coverage, while Michael Wilson took advantage of communication problems in the secondary.

Minshew deserves credit for coming off the bench and executing the offense, but Dallas made his job easier by allowing Arizona to dictate the matchups.

The overtime defense initially responded with a strong three-and-out, but the Cowboys couldn't get the offense going and eventually allowed the Cardinals to move into field-goal range.

You can't lead by 14 points in the fourth quarter and expect to win if you can't stop the run, tackle in space and communicate in the secondary.

Christian Parker has some serious issues to address.

The Cowboys have to find a way to finish games.

And after what happened against Arizona, that needs to become the priority.

— Bryan Broaddus