COACH PROFILE
Jim O'Neil
Assistant Head Coach, Detroit Lions (2026)
Towson
Philadelphia, PA
Jim O'Neil has coached in the NFL since 2009, spanning 14 seasons with 6 organizations. His roles included Assistant Head Coach, Safeties, Defensive Assistant, and Defensive Backs. He worked under Chip Kelly, Dan Campbell, and Doug Marrone.
Career Timeline
Career History
| Year | Team | Role(s) |
|---|---|---|
| 2026 |
Detroit Lions
|
Assistant Head Coach, Safeties under Dan Campbell |
| 2025 |
Detroit Lions
|
Defensive Assistant, Safeties under Dan Campbell |
| 2024 |
Detroit Lions
|
Defensive Assistant under Dan Campbell |
| 2020 |
Las Vegas Raiders
|
Defensive Backs under Jon Gruden |
| 2019 |
Oakland Raiders
|
Defensive Backs under Jon Gruden |
| 2018 |
Oakland Raiders
|
Senior Defensive Assistant under Jon Gruden |
| 2016 |
San Francisco 49ers
|
Defensive Coordinator under Chip Kelly |
| 2015 |
Cleveland Browns
|
Defensive Coordinator under Mike Pettine |
| 2014 |
Cleveland Browns
|
Defensive Coordinator under Mike Pettine |
| 2013 |
Buffalo Bills
|
Linebackers under Doug Marrone |
| 2012 |
New York Jets
|
Assistant Defensive Backs under Rex Ryan |
| 2011 |
New York Jets
|
Assistant Defensive Backs under Rex Ryan |
| 2010 |
New York Jets
|
Assistant Defensive Backs under Rex Ryan |
| 2009 |
New York Jets
|
Defensive Quality Control under Rex Ryan |
Worked Under (7)
| Coach | Team | Years |
|---|---|---|
|
|
San Francisco 49ers
|
1 |
|
|
Detroit Lions
|
3 |
|
|
Buffalo Bills
|
1 |
|
|
Oakland Raiders
|
2 |
|
|
Las Vegas Raiders
|
1 |
|
|
Cleveland Browns
|
2 |
|
|
New York Jets
|
4 |
Protégés (0)
No protégés became head coaches.