Exploring Potential Replacements for Aaron Glenn If He Takes a Head Coaching Job
As the Detroit Lions continue their best season in decades, success is drawing attention to their coaching staff. Defensive coordinator Aaron Glenn has become a prime candidate for head coaching opportunities, and while his departure is not guaranteed, head coach Dan Campbell is undoubtedly considering the future. If Glenn were to leave after this season, the Lions would need to find a capable replacement to maintain their defensive momentum. Here are four potential candidates who could step in as the next defensive coordinator.
4. Terrell Williams – Lions Defensive Line Coach/Run Game Coordinator
One of the most logical candidates is Terrell Williams, who has played a significant role in the development of the Lions’ defensive line despite numerous injuries. Under his guidance, players like Al-Quadin Muhammad have thrived, showcasing the depth of his coaching expertise.
Williams has an impressive résumé as a defensive line coach but has yet to serve as a defensive coordinator. However, his promotion to assistant head coach during his time with the Tennessee Titans highlights his leadership potential. If the Lions prioritize an internal hire, Williams could be at the top of the list, given his familiarity with the system and the trust he has earned within the organization.
3. Robert Saleh – Former New York Jets Head Coach
Robert Saleh, a Michigan native and defensive mastermind, would bring an exciting dynamic to the Lions. Saleh, fired as the Jets’ head coach earlier this season, has an impressive track record of leading top-tier defenses. During his tenure with the Jets, his defensive units were among the league’s best, even as offensive struggles plagued the team.
Saleh’s connection to Michigan and his past consideration for the Lions’ head coaching job make him an attractive candidate. His experience and defensive expertise would make for a seamless transition if Glenn departs, bringing a renewed intensity to Detroit’s defense.
2. Dennis Allen – Former New Orleans Saints Head Coach
Dennis Allen’s credentials as a defensive coordinator are undeniable. During his time leading the Saints’ defense (2015-2021), he transformed them into one of the NFL’s most consistent units. While his head coaching stints in New Orleans and Oakland were less successful, his defensive acumen remains respected across the league.
Allen’s history with Dan Campbell during their years under Sean Payton in New Orleans adds another layer of compatibility. If Glenn moves on, Allen’s vast experience and tactical brilliance could make him an ideal choice to maintain the Lions’ defensive success.
1. Kelvin Sheppard – Lions Linebackers Coach
Kelvin Sheppard has emerged as a rising star in the coaching ranks and is widely seen as a future head coach. His work with Detroit’s linebackers has been pivotal, especially given the injury challenges the team has faced this season.
Sheppard’s connection to the current players and his understanding of Glenn’s defensive philosophy make him the most likely candidate for an internal promotion. Campbell is known for valuing continuity, and Sheppard’s ascent to defensive coordinator would ensure that the Lions maintain the chemistry and identity they’ve cultivated under Glenn.
Looking Ahead
While Aaron Glenn’s future remains uncertain, the Lions have a solid foundation to ensure a smooth transition if he takes a head coaching role. Whether it’s an internal promotion or an outside hire, the next defensive coordinator will have the opportunity to build on the momentum Glenn has created. With Dan Campbell’s leadership and Detroit’s strong coaching culture, the Lions are well-prepared for the next chapter, regardless of who takes the reins on defense.
