The Zeitgeist List · coordinators · never a head coach
Chris Ball.
Defensive coordinator · 5 seasons · 2 stints · 2 programs0 seasons ranked in the national top 10%
Own effect on the unit
Defense−0.09#295 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.
Arizona State 2014–2015
Memphis 2016–2018
Median of those still in the job, that year of a tenure. A shrinking pool, not a path.
Arizona State, 2 years
−66.4
79.3 to 12.9 percentile.
Memphis, 3 years
+11.1
27.7 to 38.8 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 |
|---|---|---|---|---|---|
| 2014–2015 | Arizona State | no record | 79.3 | 79.3 | −45.7 |
| 2016–2018 | Memphis | 57.4 | 27.7 | 38.8 | −15.6 |
No prior-season record for the first stop (Arizona State, 2014) — the data floor starts there.
Memphis 2016–2018: ranked 57th the year before he arrived, 39th at its best — went backwards.