Gannon brings two previous seasons of NFL defensive coordinator experience, first with the Philadelphia Eagles (2021-22). In his final year coordinating the Eagles, the defense ranked second in yards allowed and eighth in points allowed, aided by a productive pass rush.
The past three seasons, Gannon served as the Arizona Cardinals’ head coach. The move to Green Bay comes after a 15-36 overall record in Arizona, including an 8-9 season most recently; the team had a 4-13 mark in his first season and 3-14 in a later campaign. Arizona’s defenses struggled statistically, finishing 21st or worse in yards allowed in all three seasons and never finishing higher than 15th in points allowed.
Gannon’s hire comes to replace Jeff Hafley, who left Green Bay in the offseason to become head coach of the Miami Dolphins. The decision marks a shift to a coordinator-led approach that LaFleur hopes will bolster the Packers’ defense around quarterback-hunting players and a retooled frontline.
Analysts who graded coordinator hires in the NFL generally viewed Gannon favorably. CBS Sports’ Jordan Dajani and Bryan DeArdo highlighted his reputation as one of the league’s top coordinators, noting his impact during Philadelphia’s run to the Super Bowl LVII and the Eagles’ top-eight rankings in points, yards, and sacks under his watch.
The Packers are widely expected to lean on a strong pass rush as a strength of the defense in 2025, potentially pairing Gannon’s schemes with an emphasis on edge pressure. While parity with talents such as standout pass-rushers will be critical, Green Bay’s new defensive mind is positioned to influence the unit’s approach as the organization moves forward.