The Zeitgeist List · coordinators · never a head coach
Peter Sirmon.
Defensive coordinator · 7 seasons · 4 stints · 3 programs0 seasons ranked in the national top 10%
Own effect on the unit
Defense−0.07#275 of 458 · a typical amount
The tenure clock
Every stop re-aligned to its own first year, so the stops stack instead of scrolling past each other. The gray dashed line is a reference, not a path: each point is the median of whoever was still in the job that year, across every real OC/DC stint since 2014 at that role, and the pool shrinks year over year because surviving to a later year means not having been fired.
Mississippi State 2016–2016
Louisville 2017–2017
California 2020–2024
Median of those still in the job, that year of a tenure. A shrinking pool, not a path.
California, 5 years
−17.5
77.6 to 60.1 percentile.
Median defensive coordinator
+1.0
first season to last, across 239 stints of 3+ years. 52.3% improve at all.
Every stop on the calendar
| Years | Program | Walked into | Year 1 | Best | Vs. talent |
|---|---|---|---|---|---|
| 2016–2016 | Mississippi State | 43.4 | 18.4 | 18.4 | −39.9 |
| 2017–2017 | Louisville | 85.5 | 51.9 | 51.9 | −4.4 |
| 2020–2020 | California | 62.7 | 77.6 | 77.6 | +26.4 |
| 2021–2024 | California | 77.6 | 73.5 | 73.5 | −2.1 |
Mississippi State 2016–2016: ranked 43rd the year before he arrived, 18th at its best — went backwards.
Louisville 2017–2017: ranked 86th the year before he arrived, 52nd at its best — went backwards.
California 2021–2024: ranked 78th the year before he arrived, 73rd at its best — went backwards.