"Former Jaguars and Falcons defensive coordinator Ryan Nielsen is expected to join the Bills staff as a senior defensive assistant. Nielsen also spent six seasons with the Saints as D-line coach and co-DC. He drew high interest from multiple teams in this cycle," The Athletic's Bruce Feldman said.

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 Falcons defensive coordinator Ryan Nielsen has found a new home, joining the Bills as a senior defensive assistant, according to Bruce Feldman. The Jaguars finished the 2024 campaign dead last in passing yards allowed and 31st in total defense.

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.

Ryan Nielsen has served as a defensive coordinator on three different teams over the past three years. He will not have another DC gig in 2025, but he has landed a new opportunity in the NFL.

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.