The Zeitgeist List · coordinators · never a head coach
Jason Semore.
Defensive coordinator · 3 seasons · 3 stints · 3 programs0 seasons ranked in the national top 10%
Own effect on the unit
Defense+0.00#222 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.
Marshall 2023–2024
Southern Miss 2025–2025
Georgia Tech 2026–2026
Median of those still in the job, that year of a tenure. A shrinking pool, not a path.
Marshall, 2 years
+12.2
63.5 to 75.7 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 |
|---|---|---|---|---|---|
| 2023–2024 | Marshall | 99.6 | 63.5 | 75.7 | +23.8 |
| 2025–2025 | Southern Miss | 4.1 | 54.0 | 54.0 | +7.0 |
| 2026–2026 | Georgia Tech | no record | — | — | — |
Marshall 2023–2024: ranked 100th the year before he arrived, 76th at its best — went backwards.
Georgia Tech: just hired, no season coached yet.