Coaches / Position coach / Grant O’Brien
Career
72
not coaching now
Rating72recent
Peak72best 5 yrs
Career72whole career
confidence
Grant O’Brien
Assistant Linebackers Coach · Arizona State
Headline rating: as position coach · defensive backs. Every role he has been rated in is below.
Chemistry
—
index in development
Seasons here1
Programs4
Stints4
Career path
Head-coaching stints since 1936; assistant roles since 2016
As position coach · defensive backs
Rating72Peak72
Room quality, development (his players gaining more than typical players at the position year to year) and recruiting credit.
| Season | Team | Room | Room quality | Development | Recruiting | Season score |
|---|---|---|---|---|---|---|
| 2025 | Northwestern | Defensive backs | 77 | +4.2 | 0.864 | 0.55 |
| 2024 | Purdue | Defensive backs | 70 | +0.7 | 0.846 | -0.27 |
| 2023 | Purdue | Defensive backs | 76 | +2.1 | 0.889 | 0.47 |
Season score: 0 = an average season in this role; positive = better.