Rosternomics
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August 17, 2004

NYMLAD

NYM won this trade +$1.6M surplus NYM won this trade +0.1 WAR
NYMNYM Jim Duquette net +$1.6M net +0.1
received +$2.4M+$2.4M ± $23M expected surplus · +$0.0M realized received 1.3 ± 3 expected · 0.0 realized WAR
Playoff odds: this deal moved NYM's 2004 odds 2% → 2% (+0 pts) — how trade timing is graded ↗
receives — most valuable first
Tony SocarrasC·25y·L/R
+$2.3M+$2.3M± $23M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#530 overall draft pick — at the league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
6.0 control yrs
LADLAD Dan Evans net −$1.6M net -0.1
received +$0.0M+$0.0M ± $10M expected surplus · −$1.6M realized received 0.5 ± 1 expected · -0.1 realized WAR
Playoff odds: this deal moved LAD's 2004 odds 66% → 65% (-0.6 pts) — how trade timing is graded ↗
receives — most valuable first
Tom WilsonC·33y·R/R
−$0.2M−$0.2M± $10M exp surplusrealized −$1.6M 0.5± 1 exp WARrealized -0.1
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.5/yr over 1.2 season
Talent
0.35/yr blended
Horizon
2.8 control yrs × 0.51 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.