Shanahan inherited Kubiak's zone-dominant run game (69% zone) and it became his calling card. But his tree is splitting. LaFleur held most of it (66% zone, 71st %ile). McDaniel kept the concepts in Shotgun Spread (63% zone) but cranked shotgun to 75%. McVay is the sharpest break: only 56% zone and 80% 11-personnel vs Shanahan's 21-heavy sets.

8 mentees scored, 0 in his cluster. Every mentee cranked shotgun rate (McVay: 50%) — Robinson to 82%, Taylor to 77%, McDaniel to 75%. But on gap/zone, most actually stayed close: Taylor (57%), O'Connell (58%), Mike LaFleur (59%) all near McVay's 56%.

Kubiak ran the purest zone system in the data — 76% zone, 25% shotgun, 30% I-Form. His mentees modernized the passing game but the zone identity eroded. Shanahan kept most of it (69%). Son Klint preserved it (71%). But Stefanski went 50/50 gap-zone. Petzing flipped it entirely to 63% gap.

91st %ile match (0.993) — one of the strongest in offense. They converged on run scheme from opposite directions: Pederson from Reid (65% zone) landed at 59% zone. Reich from Whisenhunt (42% zone, gap-heavy) moved to 56% zone. They literally met in the middle.