Buffalo Bills senior defensive assistant coach history
Ryan Nielsen
Nielsen is the senior defensive assistant coach for the Buffalo Bills since the 2025 season.
Scott Booker
Booker was the senior defensive assistant coach for the Buffalo Bills in the 2024 season. Booker's record as the team's senior defensive assistant coach was 13-4-0, making him the most successful senior defensive assistant coach in Buffalo Bills history. The team made it to the playoffs one time (2024) and had a 2-1 record under Coach Booker in playoff games.
Eric Washington
Washington was the senior defensive assistant coach for the Buffalo Bills in the 2022-2023 seasons, a total of two years. Washington's record as the team's senior defensive assistant coach was 24-9-0, making him the second-most successful senior defensive assistant coach in Buffalo Bills history. The team made it to the playoffs two times (2022-2023) and had a 2-2 record under Coach Washington in playoff games.
Al Holcomb
Holcomb was the senior defensive assistant coach for the Buffalo Bills in the 2023 season. Holcomb's record as the team's senior defensive assistant coach was 11-6-0, making him the third-most successful senior defensive assistant coach in Buffalo Bills history. The team made it to the playoffs one time (2023) and had a 1-1 record under Coach Holcomb in playoff games.
Buffalo Bills senior defensive assistant coach record
| Coach | Years | Record | Win percentage | Playoff record |
|---|---|---|---|---|
| Ryan Nielsen | 2025 | 0-0-0 | 0% | 0-0 |
| Scott Booker | 2024 | 13-4-0 | 76.5% | 2-1 |
| Al Holcomb | 2023 | 11-6-0 | 64.7% | 1-1 |
| Eric Washington | 2022-2023 | 24-9-0 | 72.7% | 2-2 |
Buffalo Bills senior defensive assistant coach facts
- Eric Washington was the first senior defensive assistant coach in Bills history in 2022.
- Eric Washington coached the most seasons as the Bills's senior defensive assistant coach at two seasons.
- Ryan Nielsen is the current senior defensive assistant coach, starting ahead of the 2025 season.