Age
43
Oct 27, 1982
Jim Leonhard
DEN · 2024–25→BUF · 2026–presentActive
JimLeonhardDCDefensive Coordinator
Defensive Coordinator
Buffalo Bills · since 2026With BUF
2026
first season
Coaching
10 yrs
since 2016
NFL
2 yrs
since 2024
NFL teams
2
DEN · BUF
Career
College からのコーチ遍歴。各ステップで師事したヘッドコーチも掲載。
01 / Career
Biography
WikipediaJames Andrew Leonhard (born October 27, 1982) is an American professional football coach and former player who is the defensive coordinator for the Buffalo Bills of the National Football League (NFL). He played professionally in the NFL as a safety for 10 seasons. Leonhard played college football for the Wisconsin Badgers and was signed by the Buffalo Bills as an undrafted free agent. He also played in the NFL for the Baltimore Ravens, New York Jets, Broncos, New Orleans Saints and Cleveland Browns.
Career Path
2016 — Present · Mentors noted2026–
Buffalo Bills · Defensive coordinator
NFL
2024–2025
Denver Broncos · Defensive backs coach & pass game coordinator → Assistant head coach & pass game coordinator
Defensive backs coach & pass game coordinator (2024) · Assistant head coach & pass game coordinator (2025)
NFL
2023
Illinois · Senior football analyst
NCAA
2016–2022
Wisconsin · Defensive backs coach → Defensive coordinator & defensive backs coach → Interim head coach
Defensive backs coach (2016) · Defensive coordinator & defensive backs coach (2017-2022) · Interim head coach (2022)
NCAA
Current Role
BUF · since 2026Defensive Coordinator
Buffalo Bills
first season in the role · hired 2026
Coaching since2016
In the NFL since2024
NFL teamsDEN · BUF
Playing career
Before coaching · FS2014
Cleveland Browns · FS
NFL
2013
Buffalo Bills · FS
NFL
2013
New Orleans Saints · FS
NFL
2012
Denver Broncos · FS
NFL
2009–2011
New York Jets · FS
NFL
2008
Baltimore Ravens · FS
NFL
2005–2007
Buffalo Bills · FS
NFL
Data Sources & Attribution
CreditsHeadshot — Wikimedia CommonsJeffrey Beall. Licensed under CC BY-SA 3.0 via Wikimedia Commons. Source file
Records & history — Pro Football ReferenceSports Reference LLC. “Pro Football Statistics and History.” Pro-Football-Reference.com. (Accessed 2026-08-15.)
Biography — WikipediaCareer timeline and biographical details from Wikipedia, CC BY-SA.
Draft profileThis page was compiled automatically from the coach’s Wikipedia article and is pending editorial review. Career dates and roles follow the article as of 2026-08-15.