The Buffalo Bills finalized their coaching staff and announced the addition of six new assistant coaches for the 2025 season.
Chris Tabor (special teams coordinator), Ryan Nielsen (senior defensive assistant), Mike Pellegrino (nickels), Jason Rebrovich (assistant defensive line), Turner West (assistant special teams) and Milli Wilson (assistant/offensive fellowship) join the staff. Meanwhile, Will Greenberg was promoted to head strength and conditioning coach, while Barry Rubin was named senior strength and conditioning assistant.
Tabor replaced embattled special teams coordinator Matthew Smiley after three seasons. Tabor didn’t coach last season, but has 14 years of NFL experience coaching special teams in Chicago, Cleveland and Carolina, the last of which he spent six games as the team’s interim head coach after Frank Reich was fired in 2023.
Nielsen spent last season as Jacksonville’s defensive coordinator and was a defensive coordinator in Atlanta in 2023 and a co-defensive coordinator for New Orleans in 2022. Nielsen was the Saints’ defensive line coach from 2017-2022 and also coached the Atlanta defensive line. The Saints ranked in the top 10 in sacks during Nielsen’s six years with the Saints.
Pellegrino came to Buffalo essentially in a swap with New England, where former Bills nickels coach Scott Booker took a job. Pellegrino was with the Patriots from 2015-2024, but was not retained by new coach Mike Vrabel.
The 31-year-old Pellegrino was a coaching assistant during his first four years in New England. He spent the past six seasons as cornerbacks coach. The Patriots ranked in the top-10 four times while Pellegrino was the cornerbacks coach and were two behind Pittsburgh and three ahead of Buffalo for the NFL lead in interceptions during that stretch.
Rebrovich is in Buffalo for his second stint, the first from 2013-2016. He held a different title in each of his four years the first time around, ascending from defensive quality control coach, to assistant defensive line, to outside linebackers and defensive line coach.
The Clarence native spent four years in Jacksonville, split between assistant defensive line and defensive line coach. He was in Green Bay the last three seasons as an outside linebackers coach, pass rush specialist and defensive line coach.
West was the special teams coordinator for Georgia Southern the past three seasons and held the same position at The Citadel the previous three seasons. He was an assistant linebacker coach for the Cowboys from 2014-2017.
Wilson was an offensive student assistant for Missouri, where she assisted with the offensive coordinator and quarterbacks coach.
Buffalo’s 23 assistants have a combined 219 years of NFL coaching experience, with 12 having more than a decade and six with at least 15. The Bills also have four assistants, not counting defensive coordinator Bobby Babich and offensive coordinator Joe Brady, with NFL experience as a coordinator.