Coach Profile
2004-2007 • Nebraska
One defining stop at Nebraska.
Bill Callahan coached 4 seasons, won 55.1%, and posted an average SRS of 5.2. Best season: 2006 Nebraska. The profile was balanced with a very steady week-to-week shape. One primary stop defined the run.
Career Dossier
The profile below keeps the headline numbers visible, then moves into tenure shape, school impact, and full season detail.
Primary school anchor
Nebraska
Balanced profile with 1 program stop and a peak score of 64.6.
Track how the coach's season-to-season performance changed over time, where the peak landed, and where each school stop began.
Focus on where peaks separate, where floors hold, and how the shape of each career changed over time.
Active comparison point
9-5 • SRS 11.2 • SP Overall 14.7
Win %
64.3%
YoY SRS
+3.6
SP Off / Def
31.5 / 17.7
Finish
Unranked
Comparison context
Focus a point to inspect how it stacks up against the rest of the field.
Each stop expands by seasons coached. Deeper color signals a stronger average SRS over that stretch.
Nebraska
2004-2007 • 4 seasons
Avg SRS 5.2 • Win % 55.1%
Compare strength, identity, steadiness, and ceiling through normalized bars with raw SP and SRS context underneath.
These bars are normalized against the full coach dataset. Raw SP and SRS values stay visible so the profile reads as evidence, not decoration.
Start with total quality before splitting style and variance.
Bill Callahan sets the reference point in overall strength.
Bill Callahan sets the reference point in overall strength.
Normalized score; raw SP overall stays underneath for reference.
Bill Callahan
Strong
Strong
Normalized against the full tracked coach pool.
See how each stop compared with what that program usually looked like outside this tenure.
2004-2007 • 27-22
Compared with this school's baseline outside the tenure over the prior 5 seasons (5 baseline seasons found).
Avg wins
Higher is better
6.8 during vs 9.0 baseline
-2.3
Avg SRS
Higher is better
5.2 during vs 17.2 baseline
-12.0
Avg SP Overall
Higher is better
9.2 during vs 20.2 baseline
-10.9
Ranked finish rate
Higher is better
25.0% during vs 80.0% baseline
-55.0%
High Points
Best Season
Nebraska 2006
9-5 • SRS 11.2
Biggest Improvement
Nebraska 2005
8-4 • 7.2 SRS
Best Offensive Season
Nebraska 2007
5-7 • SP Off 39.1
Best Defensive Season
Nebraska 2005
8-4 • SP Def 13.8
Setbacks
Worst Season
Nebraska 2004
5-6 • SRS 0.4
Biggest Drop
Nebraska 2007
5-7 • -9.8 SRS
Full transparency into every season in the coaching record. Positive YoY values indicate improvement from the prior season.
| Nebraska | 2007 | 12 | 5 | 7 | 0 | 41.7% | #20 | — | 1.4 | 10.0 | 39.1 | 31.2 | -9.8 | -22.6% |
| Nebraska | 2006 | 14 | 9 | 5 | 0 | 64.3% | #20 | — | 11.2 | 14.7 | 31.5 | 17.7 | +3.6 | -2.4% |
| Nebraska | 2005 | 12 | 8 | 4 | 0 | 66.7% | — | #24 | 7.6 | 10.3 | 24.2 | 13.8 | +7.2 | +21.2% |
| Nebraska | 2004 | 11 | 5 | 6 | 0 | 45.5% | — | — | 0.4 | 1.9 | 31.1 | 30.2 | — | — |
Related profiles are matched by style, strength band, volatility band, peak range, and career length.
same balanced identity • avg SRS within 0.0
Avg SRS 5.2 • Peak SRS 10.1 • 2 seasons
Best finish Unranked • Volatility 5.0
Open profile →same balanced identity • avg SRS within 0.9
Avg SRS 4.3 • Peak SRS 8.6 • 3 seasons
Best finish Unranked • Volatility 4.5
Open profile →same balanced identity • avg SRS within 0.2
Avg SRS 5.4 • Peak SRS 14.1 • 4 seasons
Best finish Unranked • Volatility 5.7
Open profile →same balanced identity • avg SRS within 0.7
Avg SRS 4.5 • Peak SRS 9.4 • 3 seasons
Best finish Unranked • Volatility 4.1
Open profile →same balanced identity • avg SRS within 0.4
Avg SRS 5.6 • Peak SRS 9.9 • 2 seasons
Best finish Unranked • Volatility 4.3
Open profile →same balanced identity • avg SRS within 0.8
Avg SRS 4.4 • Peak SRS 11.9 • 5 seasons
Best finish Unranked • Volatility 3.9
Open profile →