Why the Jets and Saints Are the Greatest Choices for the Defensive Coordinator Position of the Lions in 2025: Aaron Glenn’s Best Coaching Fits

The Detroit Lions have experienced a resurgence in recent years, earning their way into the playoff picture in a way that had eluded them for decades. A significant part of their growth under head coach Dan Campbell has been the development of a well-balanced roster, but especially the defense, which had been a point of emphasis for the team. As the Lions continue to seek ways to improve and make a deeper playoff push in 2025, one key area for potential improvement is their defensive coaching staff, particularly the role of Defensive Coordinator (DC).

Aaron Glenn, who currently serves as the DC for the Lions, has made significant strides in his coaching career. Under his leadership, the defense has shown flashes of improvement. However, if the Lions are to challenge the NFL’s elite teams consistently, they might need a fresh set of ideas or a more seasoned approach. While Glenn has earned his place in Detroit, examining other teams’ defensive schemes and their leadership may reveal why franchises like the New York Jets and New Orleans Saints are the greatest fits for the defensive coordinator position of the Lions moving forward.

The Rise of Aaron Glenn and His Coaching Philosophy

Before diving into why the Jets and Saints are strong fits for the Lions, it’s essential to understand Aaron Glenn’s career and philosophy as a defensive coach.

Glenn’s football journey began as a player, where he enjoyed a successful 15-year NFL career as a cornerback, playing for teams like the New York Jets, Houston Texans, and Dallas Cowboys. His defensive backfield expertise has heavily influenced his coaching, and he quickly transitioned to coaching roles after retirement. Starting as a defensive backs coach with the New Orleans Saints, Glenn’s influence was felt in that unit, known for its disciplined and aggressive approach to the game.

Glenn’s transition to the Detroit Lions came in 2021 when he was hired as their defensive coordinator under Campbell. His influence on the defense was notable, though it has not always been smooth. The Lions’ defense has had some ups and downs under his leadership, with significant struggles against the run, inconsistent pass-rushing, and issues in coverage at times.

Despite these challenges, Glenn’s ability to adapt to the players and his defensive back expertise are things that could be capitalized on with the right supporting cast around him. As the Lions look toward 2025, Glenn’s reputation as a coach who understands the importance of versatility and adaptability could align perfectly with the defensive schemes that have been successful for the New York Jets and New Orleans Saints in recent years.

Why the New York Jets Are a Top Fit for Aaron Glenn

The New York Jets have had a highly effective defense over the past few seasons, which has been a crucial part of their success, even as their offense has struggled to find consistency. The Jets’ defense has been led by former NFL head coach Robert Saleh, who has brought a demanding, high-energy approach to the team. The Jets’ defensive philosophy is based on a strong front seven, aggressive pass-rushing, and secondary play that thrives on man-to-man coverage and aggressive ball-hawking.

What makes the Jets an ideal fit for Aaron Glenn as a potential defensive coordinator is the synergy between Saleh’s defensive schemes and Glenn’s background as a former cornerback. Here are the reasons why:

1. Youthful and Aggressive Defense: The Jets are known for their aggressive style of defense, particularly under Saleh. Their use of multiple fronts, pressure packages, and intense pass-rushing could benefit from Glenn’s experience in crafting dynamic defensive backfield schemes. Glenn’s focus on adaptability and attacking defenses would be well-suited to working with Saleh’s schemes, which already rely heavily on stifling quarterbacks with both pressure and disciplined coverage.
2. Secondary Expertise: Aaron Glenn’s strength has always been his ability to coach defensive backs. Under Glenn’s tutelage, the Lions’ secondary has grown stronger, and he would be able to apply his cornerback knowledge to a Jets defense that already boasts strong cornerback play, led by the likes of Sauce Gardner and DJ Reed. Glenn could help elevate the play of the secondary even further, especially in terms of press-man coverage, disguising coverages, and creating turnovers.
3. Collaborative Culture: The Jets have developed a collaborative coaching culture under Saleh, with each coach working closely together to implement the defense’s philosophy. Glenn, known for his adaptability and ability to grow players, would fit into this culture seamlessly. The opportunity for him to work with Saleh and the rest of the defensive staff would enable him to thrive, bringing fresh perspectives to an already successful unit.
4. Developmental Opportunities: Glenn is seen as a coach who thrives in player development. The Jets have a young, talented roster with a mix of established stars and emerging players. Glenn would be in the perfect position to develop cornerbacks, safeties, and linebackers, continuing to build on the Jets’ successful draft selections and free-agent acquisitions. With his experience mentoring defensive backs, Glenn could further elevate the potential of Jets’ young players.
5. Playoff Contender: The Jets are poised to compete for playoff spots in the coming years, with a defense that can carry the team in key moments. Glenn would join a squad on the rise, where his expertise could make a tangible difference in the postseason. This success-oriented environment would push Glenn to refine his craft while being part of a defense that already has an elite level of talent.

Why the New Orleans Saints Are a Top Fit for Aaron Glenn

The New Orleans Saints have long been known for their strong defense, even as the offense around them fluctuated. Under head coach Dennis Allen, the Saints’ defense has become one of the league’s most respected units. What makes the Saints a great fit for Aaron Glenn is their deep understanding of defensive back play, their consistent defensive schemes, and their ability to adapt in a highly competitive NFC South division.

Here’s why the Saints are an ideal coaching fit for Glenn:

1. Defensive Back Expertise: Much like the Jets, the Saints’ defense is known for its prowess in the secondary. The Saints have produced elite cornerbacks such as Marshon Lattimore and have a strong reputation for turning unheralded players into top-tier defensive backs. With Glenn’s background as a former cornerback, he would be able to continue the legacy of developing top-notch defensive backs in New Orleans, possibly even working with Lattimore to elevate his play further.
2. Allen’s Philosophy: Dennis Allen’s defensive philosophy has centered around creating a balance between aggressive pressure and smart zone coverage. Glenn’s experience in various defensive back schemes, particularly man coverage, would complement Allen’s style, as Glenn could offer new ideas and nuances in both press and off-man schemes. The chance to work alongside Allen and build upon the existing defensive structure would be an enticing opportunity for Glenn.
3. Stability and Consistency: The Saints’ defense has been a model of stability and consistency over the years, allowing players to develop in a structured environment. Glenn’s ability to mold and develop young talent would be enhanced by the Saints’ existing infrastructure. Glenn would have the time and resources to build a unit that could compete with some of the NFL’s top offenses, which would be crucial as the NFC South continues to evolve.
4. Potential for Player Development: The Saints have always been a team that values developing players from within, and Glenn’s track record of working with defensive backs is invaluable in such a system. He could continue to develop young players like Paulson Adebo and others, helping them ascend into top-tier players in the league. Glenn’s approach to player development could be a key factor in sustaining the Saints’ defensive success over the long term.
5. Super Bowl Potential: With a defense already stacked with talent and a head coach in Dennis Allen who understands what it takes to win championships, Glenn would be entering an organization with Super Bowl aspirations. The Saints’ defense remains one of the league’s most formidable, and Glenn could play a pivotal role in ensuring that it stays at an elite level for the foreseeable future.