The Zeitgeist List · Coordinators · Never a head coach
Jeff Casteel.
Defensive coordinator · 5 seasons · 2 stints · 2 programs0 seasons ranked in the national top 10%
Own effect on the unit
Defense−0.07not distinguishable from zero
model fit as of 2026-09-04
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.
Arizona 2014–2015
Nevada 2017–2019
Median of those still in the job, that year of a tenure. A shrinking pool, not a path.
Arizona, 2 years
▼ 40.6
55.9 to 15.2 percentile.
Nevada, 3 years
▼ 10.8
35.8 to 25.0 percentile.
Median defensive coordinator
+0.5
first season to last, across 235 stints of 3+ years. 50.6% improve at all.
Every stop on the calendar
| Years | Program | Walked into | Year 1 | Best | Vs. talent |
|---|---|---|---|---|---|
| 2014–2015 | Arizona | 76.4 | 55.9 | 55.9 | ▼ 38.8 |
| 2017–2019 | Nevada | 34.0 | 35.8 | 86.5 | ▲ 4.6 |
Arizona 2014–2015: ranked 76th the year before he arrived, 56th at its best — went backwards.