Rosternomics
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December 2, 2003

CHWCOL

CHW won this trade +$39.2M surplus CHW won this trade +8.7 WAR
CHWCHW Kenny Williams net +$39.2M net +8.7
received −$2.4M−$2.4M ± $22M expected surplus · +$32.8M realized received 0.1 ± 3 expected · 7.8 realized WAR
Playoff odds: this deal moved CHW's 2004 odds 11% → 23% (+11.4 pts) — how trade timing is graded ↗
receives — most valuable first
Juan Uribe3B/SS·25y·R/R
−$2.4M−$2.4M± $22M exp surplusrealized +$32.8M 0.1± 3 exp WARrealized 7.8
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.1/yr over 1.4 season
Talent
0.02/yr blended
Horizon
4.0 control yrs
COLCOL Daniel O'Dowd net −$39.2M net -8.7
received +$0.8M+$0.8M ± $18M expected surplus · −$6.4M realized received 1.2 ± 2 expected · -0.9 realized WAR
Playoff odds: this deal moved COL's 2004 odds 2% → 1% (-1.2 pts) — how trade timing is graded ↗
receives — most valuable first
Aaron Miles2B·27y·B/R
+$1.0M+$1.0M± $18M exp surplusrealized −$6.4M 1.2± 2 exp WARrealized -0.9
Prior
#529 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 1.5/yr over 0.1 season
Talent
0.27/yr blended
Horizon
5.5 control yrs × 0.85 age decline

Each player is valued on what he was expected to produce at the time of the trade, versus what he actually produced for his new team.

Expected WAR blends a player's pedigree (composite top-100 rank / draft slot, or a baseline) with his recent track record, projected over the years of team control acquired. The ± figure is a historically calibrated predictive standard deviation, measuring how widely comparable forecasts have missed around their expected value. Surplus values that production at the FA market price of a win (~$8M/WAR) minus salary — so cost-controlled players carry large surplus and expensive ones little, even at the same WAR. Who won is descriptive, not a skill claim: ~99% of a trade's outcome is unforeseeable at the time.