Rosternomics
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July 24, 1995

WSNSFG

WSN won this trade +$3.2M surplus WSN won this trade +0.2 WAR
WSNWSN Kevin Malone net +$3.2M net +0.2
received +$1.6M+$1.6M ± $28M expected surplus · +$0.0M realized received 1.2 ± 4 expected · 0.0 realized WAR
Playoff odds: this deal moved WSN's 1995 odds 5% → 5% (+0.2 pts) — how trade timing is graded ↗
receives — most valuable first
Lou PoteP·23y·R/R
+$1.8M+$1.8M± $28M exp surplusrealized +$0.0M 1.2± 4 exp WARrealized 0.0
Prior
#770 overall draft pick — at the league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
5.5 control yrs
SFGSFG Bob Quinn net −$3.2M net -0.2
received +$2.4M+$1.6M ± $10M expected surplus · −$3.2M realized received 0.8 ± 1 expected · -0.2 realized WAR
Playoff odds: this deal moved SFG's 1995 odds 9% → 8% (-0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Luis AquinoP·31y·R/R
+$2.3M+$1.5M± $10M exp surplusrealized −$3.2M 0.8± 1 exp WARrealized -0.2
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.7/yr over 2.4 seasons
Talent
0.56/yr blended
Horizon
1.5 control yr × 0.91 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.