Rosternomics
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August 31, 2008

TORARI

TOR won this trade +$8.8M surplus TOR won this trade +0.3 WAR
TORTOR JP Ricciardi net +$8.8M net +0.3
received +$1.6M+$1.6M ± $22M expected surplus · −$0.8M realized received 1.2 ± 3 expected · 0.1 realized WAR
Playoff odds: this deal moved TOR's 2008 odds 35% → 36% (+1 pts) — how trade timing is graded ↗
receives — most valuable first
Chad BeckP·23y·R/R
+$1.8M+$1.8M± $22M exp surplusrealized −$0.8M 1.2± 3 exp WARrealized 0.1
Prior
#417 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
ARIARI Josh Byrnes net −$8.8M net -0.3
received +$0.0M−$1.6M ± $14M expected surplus · −$9.6M realized received 1.8 ± 2 expected · -0.2 realized WAR
Playoff odds: this deal moved ARI's 2008 odds 13% → 12% (-0.5 pts) — how trade timing is graded ↗
receives — most valuable first
David EcksteinSS·33y·R/R
+$0.0M−$1.7M± $14M exp surplusrealized −$9.6M 1.8± 2 exp WARrealized -0.2
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 1.8/yr over 2.3 seasons
Talent
1.26/yr blended
Horizon
1.5 control yr × 0.94 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.