3rd-best Iowa tenure of 13 by the numbers.
Recruiter or developer?
Underperforms his recruiting talent on offense and outperforms his recruiting talent on defense.
Offense vs. talent
-24.5 pts
#187 of 208 · less than most
Defense vs. talent
+31.2 pts
#8 of 208 · more than most
Recruiting talent is team-wide (no offense/defense split exists in the source data) -- both sides are scored against the same talent input, only the outcome is side-specific.
Followed Hayden Fry (1979–1998).
Roster construction · portal era
Barely touches the portal — recruits and develops his own.
Portal arrivals
38
3.1★ avg rating
Portal departures
73
left via the portal
Net portal flow
-35
#157 of 187 FBS stints
Who they bring in
Typical size for position, once adjusted for position mix.
A typical class-year mix of incoming transfers.
Avg. size (raw)
6′2″, 234 lbs
across 26 of 38 arrivals — unadjusted for position mix
Size vs. position-typical
+3.1 lbs
#147 of 255 · a typical amount
Avg. class year
Jr
#159 of 255 · a typical amount
Top states: MI (4), TX (3), GA (3), OH (3), IL (3)
Who won the portal our read
Talent added
56.0
position-weighted
Talent lost
60.0
position-weighted
Net
-3.9
arrivals minus departures
Best addition: Cade McNamara (QB) from Michigan
Biggest loss: Cade McNamara (QB) to East Tennessee State
Position-value-weighted (QB/CB weighted highest, depth-decayed within each position) — the same scoring engine as the Portal Heat feed, not a separate grade.
Does the system survive a coordinator change?
OC: Greg Davis → Brian Ferentz · 2017the system held
2-season window either side.
1st-down pass rate: 32.4% → 38.5% (+6.1 pts)
Confound, shown not hidden: only 30% of offensive production returned the year the coordinator changed — the roster turned over at the same time, not just the play-caller.
OC: Brian Ferentz → Tim Lester · 2024the offense leveled up
2-season window either side.
1st-down pass rate: 39.0% → 25.9% (-13.1 pts)
Confound, shown not hidden: only 55% of offensive production returned the year the coordinator changed — the roster turned over at the same time, not just the play-caller.
Roster size, by position
Skill positions · usage-weighted (real participation)
Quarterback
220 lbs
6′3″ avg · #166 of 767 · more than most
Running back
211 lbs
5′10″ avg · #236 of 791 · a typical amount
Wide receiver
196 lbs
6′0″ avg · #255 of 791 · a typical amount
Tight end
247 lbs
6′4″ avg · #283 of 731 · a typical amount
Trench & secondary · recruited roster, not confirmed starters
Interior line
302 lbs
6′5″ avg · #644 of 779 · less than most
D-line
276 lbs
6′3″ avg · #542 of 753 · a typical amount
Linebacker
232 lbs
6′2″ avg · #218 of 772 · a typical amount
Cornerback
197 lbs
6′0″ avg · #82 of 771 · more than most
Offensive-line size is one undifferentiated bucket — the source data almost never distinguishes tackle from guard from center, so we can't split them out.
Where the roster comes from, by position
Grows P from high school
80%
#29 of 29 stints
Grows K from high school
75%
#49 of 56 stints
Postseason detail2014: Lost to Tennessee 28–45 Taxslayer Bowl2015: Lost to Stanford 16–45 Rose Bowl Game Pres. By Northwestern Mutual2016: Lost to Florida 3–30 Outback Bowl2017: Beat Boston College 27–20 New Era Pinstripe Bowl2018: Beat Mississippi State 27–22 Outback Bowl2019: Beat USC 49–24 San Diego County Credit Union Holiday Bowl2021: Lost to Kentucky 17–20 Vrbo Citrus Bowl2022: Beat Kentucky 21–0 TransPerfect Music City Bowl2023: Lost to Tennessee 0–35 Cheez-It Citrus Bowl2024: Lost to Missouri 24–27 TransPerfect Music City Bowl2025: Beat Vanderbilt 34–27 ReliaQuest Bowl
103 NFL Draft picks: Jared DeVries (1999), Eric Thigpen (1999), Austin Wheatley (2000), Matt Bowen (2000), Kevin Kasper (2001), Ladell Betts (2002), Aaron Kampman (2002), Kahlil Hill (2002) + 95 more
18 player-seasons honored (All-America / national award): Tyler Linderbaum (2020), Daviyon Nixon (2020), Tyler Linderbaum (2021), Riley Moss (2021), Caleb Shudak (2021), Kaevon Merriweather (2022), Jack Campbell (2022), Tory Taylor (2022) + 10 more