Rosternomics
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November 18, 2005

SDPNYM

SDP won this trade +$52.0M surplus SDP won this trade +6.3 WAR
SDPSDP Kevin Towers net +$52.0M net +6.3
received +$28.0M+$28.0M ± $20M expected surplus · +$52.0M realized received 4.5 ± 2 expected · 6.4 realized WAR
Playoff odds: this deal moved SDP's 2006 odds 32% → 56% (+24.5 pts) — how trade timing is graded ↗
receives — most valuable first
Mike CameronOF·33y·R/R
+$27.8M+$27.8M± $20M exp surplusrealized +$52.0M 4.5± 2 exp WARrealized 6.4
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 4.6/yr over 2.2 seasons
Talent
3.07/yr blended
Horizon
1.5 control yr × 0.98 age decline
NYMNYM Omar Minaya net −$52.0M net -6.3
received +$5.6M+$5.6M ± $24M expected surplus · +$0.0M realized received 1.9 ± 3 expected · 0.1 realized WAR
Playoff odds: this deal moved NYM's 2006 odds 84% → 66% (-18.3 pts) — how trade timing is graded ↗
receives — most valuable first
Xavier NadyOF·27y·R/R
+$5.2M+$5.2M± $24M exp surplusrealized +$0.0M 1.9± 3 exp WARrealized 0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 1.0/yr over 1.3 season
Talent
0.63/yr blended
Horizon
3.0 control yrs

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.