The Cowboys’ Secret X-Factor in 2025? When New Coaches Bring... The Missing Link

I’ve got a theory...

It might just be the Cowboys’ biggest X-Factor in 2025.

We’re talking about new Cowboys coaches bringing in their guys — former players who already know the scheme, the expectations, and the mission.

I’m Gavin Dawson from 105.3 The Fan’s GBag Nation, home of the Cowboys — catch us 2–7 p.m. weekdays.

Since Wade Phillips left in 2010, the Cowboys have had seven defensive coordinators. Some worked. Some didn’t. But the ones who could find the right fits — especially ones they’d worked with before — had a leg up. When they couldn’t? Flat-out disasters.

(AP Photo/Tony Gutierrez)

The Cowboys have new coaches again in 2025.

• DC Matt Eberflus

  
  

• DL coach Aaron Whitecotton

  
  

And look who they brought with them: Jack Sanborn and Solomon Thomas.This might be the perfect litmus test for the theory.

Let me show you my work. Just give me a minute.

If you think I nailed it, smash that like and sub button. If you hate the theory, I get it — hit thumbs down. But hear

me out.

What Sparked This Theory?

It started during OTAs — all the talk is about the Cowboys needing to stop the run.Here’s the thing: they didn’t really draft anyone early to address it.But there’s Sanborn, working with the 1s for his former head coach now turned defensive coordinator, Matt Eberflus.

Eberflus has a rep for stopping the run. He clearly trusts this guy.

So I started thinking... does this work? Has this worked before in Dallas?And when it didn’t — what did it mean?

🚨 When They Didn’t Bring Their Guys — It Was Ugly

Remember 2020?

Mike Nolan and Jim Tomsula took over the defense.

They brought in zero former players.

That defense finished dead last in almost every major category.

Red flag. You’re telling me nobody from your past wants to follow you to the Dallas Cowboys? Either you don’t know who the right guys are… or the front office doesn’t trust you to pick them.

Monte Kiffin (2013)

RIP to a football lifer who coached with Bud Grant and came from USC, but he didn’t bring a single guy to fit the new Tampa 2 system.

And they needed cheap, specific fits.

They collapsed defensively and demoted Kiffin within the year.

👊 When It Did Work

Rob Ryan (2011)

Say what you want about Rob’s run, but the man had the best “ah hells” in football — and he brought dudes:

• Kenyon Coleman

  
  

• Abe Elam

  
  

• Leon Williams

  
  

They helped fix a horrendous 2010 defense.

He also introduced Dallas to a rising star — Matt Eberflus. Salute.

Rod Marinelli (2014)

Now this was a guy who knew what Dallas needed.

He brought in former Bears Pro Bowler Henry Melton — who gave the Cowboys 5 sacks in 15 games before tearing his ACL.

Dallas jumped from 26th to 15th in total defense.That’s how it’s supposed to work.

Dan Quinn (2021): The Gold Standard

Jumped from 28th to 7th in total defense. Led the league in takeaways. Yes, they drafted Micah Parsons — but Quinn was the one who had the vision to move him to the edge.

That’s what elite coaches do. They see things.

But even before Parsons, Quinn brought in guys who knew his system:

• Damontae Kazee

  
  

• Keanu Neal

  
  

• Dante Fowler

  
  

Fowler was tremendous in a limited role.

The safeties weren’t elite, but they played fast and smart — perfect for a turnover-driven system.

When It Didn’t Work — Again: Mike Zimmer (2024)

Zimmer brought in four former guys.

• Eric Kendricks (the only solid one)

  
  

• Linval Joseph

  
  

• Nick Vigil

  
  

• Dalvin Cook (washed)

  
  

Run defense? Still broken. Team buy-in? Delayed. The man was respected and trusted by the players and front office, but three years out of the league dulled his edge. And Zimmer’s never been a warm-and-fuzzy guy to begin with.

🎯 The 2025 Test Case

Which brings us to this season: Can Eberflus and Whitecotton get it right?

If they do, this “bring your guys” strategy might be the secret sauce to fixing the Cowboys’ weaknesses faster than anyone expected.

💪 Jack Sanborn: The Field General

My GBag buddy Bryan Broaddus — former Cowboys scout — likes him a lot.

• Played for Eberflus and LBs coach Dave Borgonzi in Chicago

  
  

• High IQ, physical, consistent tackler

  
  

• Not flashy, but dependable

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🧱 Solomon Thomas: The Underrated Fix

• Reunited with DL coach Aaron Whitecotton

  
  

• Versatile, gritty, smart

  
  

• Can play 3-tech or edge

  
  

• Finally gives Dallas some much-needed run-stopping juice inside

🤔 Final Thought

If you're a new coach and nobody wants to follow you? That says a lot.

But when the right players want to reunite — and they know your system?

In the words of great sportscaster Stuart Scott. Booyah.

Are Jack Sanborn and Solomon Thomas enough?

Can they be the linchpins to unlocking the best Cowboys defense we’ve seen in a decade?

Could this be the best defensive hire since Wade Phillips?