GREEN BAY, Wis. — The coaching carousel has finally stopped spinning in Title Town, and the landscape looks drastically different. After weeks of speculation, the Green Bay Packers have officially overhauled their defensive war room following the departure of defensive coordinator Jeff Hafley, who has been named the new head coach of the Miami Dolphins.
In a swift countermove, Head Coach Matt LaFleur has hired former Arizona Cardinals head coach and Eagles defensive coordinator Jonathan Gannon to lead the defense. But perhaps the biggest win for Green Bay isn’t who arrived, but who stayed: DeMarcus Covington, the defensive line coach and run game coordinator, will remain with the Pack despite serious interest from the Las Vegas Raiders.
The Hafley Exodus: Miami raids Green Bay
Hafley’s exit was expected after his unit’s resurgence in 2025, but the sheer volume of staff he took with him to Miami is a blow. The Dolphins’ new staff will look like “Green Bay South,” with linebackers coach Sean Duggan (now Miami’s DC), defensive backs coach Ryan Downard, and quality control coach Wendel Davis all following Hafley to Hard Rock Stadium.
The exodus didn’t stop there. Passing game coordinator Derrick Ansley has bolted for the Dallas Cowboys to serve as their PGC and defensive backs coach. And in one of the offseason’s most intriguing storylines, Nathaniel Hackett—who spent 2025 serving as a defensive analyst for the Packers in a unique cross-training role—has returned to the offensive side of the ball as the offensive coordinator for the Arizona Cardinals.
Gannon’s Vision: A New Schematic Identity
Enter Jonathan Gannon. Known for his “HITS” principle (Hustle, Intensity, Takeaways, Smarts) and adaptable fronts, Gannon brings a philosophical shift from Hafley’s predominantly single-high safety looks. Gannon’s background suggests a move toward more split-safety coverages and variable fronts designed to confuse quarterbacks pre-snap.
To execute this vision, Gannon and LaFleur have assembled a heavy-hitting support staff:
- Bobby Babich (DB/Passing Game Coordinator): A massive coup for Green Bay. Babich, formerly the defensive coordinator for the Buffalo Bills, brings elite play-calling experience and a reputation for developing All-Pro safeties.
- Sam Siefkes (Linebackers Coach): Arriving with Gannon, Siefkes is tasked with maximizing the athletic profile of Green Bay’s linebacker corps, a group that needs to play fast in Gannon’s space-eating scheme.
- Daniel Bullocks & Will Smart: Added to the staff in undisclosed roles, likely bolstering the secondary and trench work respectively.
The Covington Factor: Why Him Staying Matters
While the new hires are flashy, retaining DeMarcus Covington is the glue that holds this transition together. Covington, who served as the New England Patriots’ defensive coordinator in 2024 before joining Green Bay, interviewed for the Raiders’ DC job this cycle. When Vegas opted to promote Rob Leonard instead, Covington chose to stay in Green Bay rather than seek a lateral move elsewhere.
Covington’s influence cannot be overstated. He successfully replaced Jason Rebrovich and Anthony Campanile last season, seamlessly integrating interior linemen with edge rushers. His decision to stay provides crucial continuity for a defensive line that was the team’s strength in 2025.
“DeMarcus [Covington] is a technician. He sees the game like a coordinator because he’s been one. Having him stay while we learn Gannon’s new system? That’s the cheat code we needed.”
— Kenny Clark, Packers Defensive Tackle
What This Means for 2026
The Packers are betting on a blend of proven experience and fresh perspective. The combination of Gannon’s scheme, Babich’s secondary expertise, and Covington’s trench dominance creates a formidable coaching triumvirate. The primary challenge will be translating Gannon’s complex, disguise-heavy coverage rules to a young secondary that just lost its primary teachers in Downard and Ansley.
With the NFC North looking more competitive than ever, LaFleur’s ability to merge these different defensive philosophies—Gannon’s zone-heavy adaptability with Covington’s aggressive front—will determine if the Packers can reclaim the division crown.
