Should Aaron Glenn depart the Lions for a head coaching position after this season, here are four potential replacements for him as defensive coordinator.
Both Detroit Lions coordinators are poised to be top head coaching candidates as the 2025 hiring cycle nears. Defensive coordinator Aaron Glenn appears more likely to land a head coaching role than offensive coordinator Ben Johnson, given the current trajectory.
Glenn’s impressive work with the Lions’ defense, despite numerous injuries this season, has significantly enhanced his head coaching prospects. He is expected to have several opportunities, though much like Johnson, he will likely be selective and unwilling to leave Detroit for just any opportunity.
Head coach Dan Campbell is well aware that his coaching staff, including Glenn, may not stay intact for much longer. Campbell, who has previously worried about losing Glenn to a head coaching role, has likely been preparing for this possibility and quietly considering potential replacements.
When Campbell took over in Detroit, he assembled an outstanding staff and has made necessary adjustments along the way. If Glenn does leave, Campbell is unlikely to be caught off-guard, as open communication with Glenn regarding his interest in head coaching positions should allow for a quick hiring process.
If Glenn moves on after the Lions’ season concludes—a key “if” to emphasize—here are four candidates to take over as the next defensive coordinator.
