According to a tweet sent by The Athletic's Bruce Feldman, former Jacksonville Jaguars defensive coordinator Ryan Nielsen is on the move. Feldman reports that Nielsen will join the Buffalo Bills as a senior defensive assistant. New Jaguars head coach Liam Coen has opted to rebuild his own staff, leaving Nielsen and several others without jobs.

Former Jacksonville Jaguars defensive coordinator Ryan Nielsen has found his next stop. "Former Jaguars and Falcons defensive coordinator Ryan Nielsen is expected to join the Bills staff as a senior defensive assistant.

Nielsen has a deal in place with the Bills, as first reported by The Athletic’s Bruce Feldman. He will be brought in as a senior defensive assistant as part of Sean McDermott ‘s staff. Feldman adds Nielsen had interest from multiple teams during the 2025 hiring cycle.

Former Jacksonville Jaguars defensive coordinator Ryan Nielsen is expected to join the Buffalo Bills coaching staff, according to The Athletic’s Bruce Feldman. Nielsen will be a senior defensive assistant with the Bills, said Feldman, and also added that Nielsen drew “high interest” from multiple teams during this hiring cycle.

The Jacksonville Jaguars were hoping the hire of Ryan Nielsen would make the defense better. Instead, it finished as one of the NFL's worst units.

According to Bruce Feldman, former Jaguars DC Ryan Nielsen is expected to join the Bills’ staff as a senior defensive assistant. Nielsen has had some