The Delta Duofantasy football, measured

The draft decides who plays.
It does not decide who is good.

Three positions, three studies, roughly 1,350 drafted players — and per-opportunity quality is flat across draft capital at all three. The draft decides who plays. It does not decide who is good.

The connective tissue

One question, three positions

FindingRBWRQB
Magic round exists?NoNo (p = 0.16)No (p = 0.59–0.87)
Per-opportunity quality flat across draft days?Yes (0 of 9 sig.)Yes (0 of 15 sig.)Yes (0 of 16 sig. at primary bar)
Wider outcome spread on Day 3?Yes (p = 0.02–0.05)not testedNo (all Holm p = 1.00)
Elite conversion once volume is earnedn/aSame by round (p = 0.61)Same by round (CI straddles zero)
Early-1st buys floor or ceiling?n/aFloor (ceiling OR 0.99, p = 0.79)Marginal ceiling only
“Ever” outcomes explained by duration?not testednot testedYes — 103% shrinkage on log(pick)
Early Day 3 sweet spot?Slight floor edgeYes (15.7% vs 3.9%)No (11.9% vs 7.7%, n.s.)
Hard prerequisite gate50 carries80 targets10 starts (0 of 104)
Late-round elite share, era trendn/aFlat (21.7% → 21.3%)Flat (14.8% → 14.8%)
Middle class, era trendn/aCollapsed (top-24 32.5% → 17.5%)Day 2 marginal (p = 0.058); undrafted eliminated
Vacancy fills from inside?n/aYes (OR 2.79, 12.5% first-feed)No — 7.6%, and 4.3% for Day 3 backups
Does the role travel on a move?n/aAlpha yes, fringe no (58.7% → 32.4%)Full-season yes (87% → 87%), part-season no (74.6% → 46.8%)
Pre-draft signal that survivesCollege receivingDraft age (Day 3 only)College rushing — STRENGTHENS under control
College-to-NFL skill transferr = 0.27 (receiving)r = 0.27 (receiving)ρ = 0.83 (rushing)

Cross-study callbacks: where the three studies agree, disagree, and why. ~1,350 drafted players across RB, WR, and QB.

The Delta Duowe don't draft players. we draft deltas.