Rosternomics
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July 31, 2008 · 3-team trade

LADBOSPIT

BOS won this trade +$112.0M surplus LAD won this trade +7.6 WAR
LADLAD Ned Colletti net −$44.8M net +7.6
received −$15.2M−$15.2M ± $12M expected surplus · −$56.0M realized received 2.3 ± 2 expected · 6.4 realized WAR
Playoff odds: this deal moved LAD's 2008 odds 11% → 23% (+12 pts) — how trade timing is graded ↗
receives — most valuable first
Manny RamirezOF·36y·R/R
−$14.9M−$14.9M± $12M exp surplusrealized −$56.0M 2.3± 2 exp WARrealized 6.4
Prior
league baseline (track record outweighs draft pedigree) → 0.23/yr
Evidence
recent form 3.1/yr over 2.6 seasons
Talent
2.17/yr blended
Horizon
1.1 control yr × 0.99 age decline
BOSBOS Theo Epstein net +$112.0M net +0.1
received +$25.6M+$25.6M ± $24M expected surplus · +$47.2M realized received 3.3 ± 3 expected · 5.8 realized WAR
Playoff odds: this deal moved BOS's 2008 odds 93% → 90% (-2.8 pts) — how trade timing is graded ↗
receives — most valuable first
Jason BayOF·29y·R/R
+$25.5M+$25.5M± $24M exp surplusrealized +$47.2M 3.3± 3 exp WARrealized 5.8
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 2.4/yr over 2.3 seasons
Talent
1.64/yr blended
Horizon
2.0 control yrs
PITPIT Neal Huntington net −$67.2M net -7.7
received +$24.8M+$24.8M ± $57M expected surplus · −$20.0M realized received 8.1 ± 7 expected · -1.9 realized WAR
Playoff odds: this deal moved PIT's 2008 odds 1% → 0% (-0.2 pts) — how trade timing is graded ↗
receives — most valuable first
Andy LaRoche3B·24y·R/R
+$11.1M+$11.1M± $42M exp surplusrealized +$0.8M 3.6± 5 exp WARrealized 0.6
Prior
Composite #31.0 pedigree (Baseball America #31 (2008)) → 0.59/yr
Evidence
recent form 1.0/yr over 0.2 season
Talent
0.66/yr blended
Horizon
5.5 control yrs
Bryan MorrisP·21y·L/R
+$8.2M+$8.2M± $22M exp surplusrealized −$12.0M 2.5± 3 exp WARrealized -1.8
Prior
#26 overall draft pick → 0.46/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.46/yr blended
Horizon
5.5 control yrs
Brandon Moss1B/OF·24y·L/R
+$6.2M+$6.2M± $22M exp surplusrealized −$4.0M 1.6± 3 exp WARrealized -0.3
Prior
#238 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 1.4/yr over 0.1 season
Talent
0.30/yr blended
Horizon
5.5 control yrs
Craig HansenP·24y·R/R
−$0.9M−$0.9M± $22M exp surplusrealized −$4.8M 0.4± 3 exp WARrealized -0.4
Prior
Composite #54.0 pedigree (Baseball America #54 (2006)) — fell off 2 lists since, regressed — at the league baseline → 0.21/yr
Evidence
recent form -0.1/yr over 0.7 season
Talent
0.10/yr blended
Horizon
4.0 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.