Coaches / Offensive coordinator / Walt Bell
Career
52
not coaching now
Rating62recent
Peak66best 5 yrs
Career52whole career
confidence
Walt Bell
Assistant Coach - Offensive Coordinator · Western Michigan
Headline rating: as offensive coordinator. Every role he has been rated in is below.
Chemistry
49
continuity at Massachusetts · early
Seasons here3
Programs5
Stints5
Career path
Head-coaching stints since 1936; assistant roles since 2016
Chemistry
vs every head coach since 2016 · 62 = typical
Tenure here
Seasons as head coach at his current school
Staff continuity
Seasons he and his offensive coordinator have worked together
Player retention
Players kept vs. the league norm for similar rosters (fewer transfers out)
Followers
Players and staff who followed him from his previous job
QB & coordinator
How long his quarterbacks have played for the same coordinator
Roster continuity
Share of starters returning from one season to the next under him
Dashed gold ring on the radar = average (62). Chemistry scale: 62 is typical, 20-50 is a warning sign, under 10 is a collapse.
As head coach
Rating25Peak25Career52
2019–2021 · 3 seasonsRecord 2-23National titles 0Great seasons 0 (top ~7% of all teams that year)Career: too early to rank all-time (8+ seasons as a head coach)
- Rating 25: his whole career, recent seasons weighted most, measured as how far his teams stood above their era, crediting him with half of what each program already was when he arrived (about the share that, historically, follows a coach to his next job), fading as the program becomes his own.
- Peak 25: best five-season stretch, 2019–2021 at Massachusetts (2-23), taking over a losing program.
Rating = who he is: his whole head-coaching career (since 1936), weighted toward recent years — how far his teams stood above their contemporaries, how much he lifted programs, his great seasons and titles. Form = the last two seasons. Career = the all-time ranking number.
| Season | Team | Record | Season rank | vs contemporaries |
|---|---|---|---|---|
| 2021 | Massachusetts | 1-8 | #125 | -1.84 SD |
| 2020 | Massachusetts | 0-4 | #77 | -2.30 SD |
| 2019 | Massachusetts | 1-11 | #130 | -3.07 SD |
Season rank = his team among all major-college teams that year; vs contemporaries = how far above the average team (in standard deviations).
As offensive coordinator
Rating62Peak66
His offense against its preseason projection (value over expectation) and the unit's opponent-adjusted quality.
| Season | Team | Unit (EPA/play) | Over expectation | Season score |
|---|---|---|---|---|
| 2025 | Western Michigan | -0.07 | -0.00 | -0.35 |
| 2024 | Western Michigan | -0.01 | 0.06 | 0.50 |
| 2023 | Indiana | -0.03 | 0.02 | 0.06 |
| 2022 | Indiana | -0.06 | -0.01 | -0.36 |
| 2018 | Florida State | -0.06 | -0.06 | -0.79 |
| 2017 | Maryland | -0.05 | -0.03 | -0.43 |
| 2016 | Maryland | -0.04 | — | -0.19 |
Season score: 0 = an average season in this role; positive = better.