Packers hire Wisconsin native Sam Siefkes as linebackers coach

New Green Bay Packers defensive coordinator Jonathan Gannon is expected to add Wisconsin native Sam Siefkes as the team’s linebackers coach, replacing Sean Duggan. Siefkes previously coached with the Arizona Cardinals and served as Virginia Tech’s defensive coordinator in 2025.

The Green Bay Packers are set to add Sam Siefkes to their staff as the linebackers coach under new defensive coordinator Jonathan Gannon. The hiring was reported by CBSSports.com and would replace Sean Duggan, who left with former coordinator Jeff Hafley to join the Miami Dolphins. Siefkes spent 2023 and 2024 as the Arizona Cardinals linebackers coach and was Virginia Tech’s defensive coordinator in 2025. The move is part of a broader staff rebuild that has already included hiring Bobby Babich as passing game coordinator. Staff details: - Sam Siefkes is an Oconomowoc, Wisconsin native and played at UW–La Crosse. - He coached at La Crosse (2012–13), Wisconsin (2015) and UW–Platteville (2016–17) before joining the NFL. - His first NFL job was with the Minnesota Vikings as a quality control assistant in 2021 and he was assistant linebackers coach in 2022. - Siefkes joined Jonathan Gannon in Arizona in 2023 and served as the Cardinals’ linebackers coach in 2023–24. - He was Virginia Tech’s defensive coordinator in 2025; the team finished 3–9 and the defense was ranked 71st, and James Franklin did not retain Siefkes. - Bobby Babich agreed to join Gannon’s staff as passing game coordinator, and Gannon may still hire a cornerbacks or safeties coach to replace Ryan Downard. Summary: This hiring continues Jonathan Gannon’s effort to assemble his defensive staff in Green Bay and fills the vacancy left by Sean Duggan. Several coaches moved with Jeff Hafley to Miami and Bobby Babich has been added to oversee the passing game and secondary. The Packers have other position coaches in place, and additional staff decisions remain undetermined at this time.