Rosternomics
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December 10, 2013 · 3-team trade

CHWANAARI

CHW won this trade +$183.2M surplus CHW won this trade +11.8 WAR
CHWCHW Kenny Williams net +$183.2M net +11.8
received +$17.6M+$17.6M ± $53M expected surplus · +$192.0M realized received 3.5 ± 7 expected · 13.7 realized WAR
Playoff odds: this deal moved CHW's 2014 odds 1% → 2% (+1 pts) — how trade timing is graded ↗
receives — most valuable first
Adam EatonOF·25y·L/L
+$17.8M+$17.8M± $53M exp surplusrealized +$192.0M 3.5± 7 exp WARrealized 13.7
Prior
#571 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 1.6/yr over 0.5 season
Talent
0.63/yr blended
Horizon
5.5 control yrs
ANAANA Jerry Dipoto net +$76.0M net +9.4
received +$29.6M+$29.6M ± $33M expected surplus · +$61.6M realized received 4.7 ± 4 expected · 9.3 realized WAR
Playoff odds: this deal moved ANA's 2014 odds 58% → 71% (+13.3 pts) — how trade timing is graded ↗
receives — most valuable first
Tyler SkaggsP·22y·L/L
+$17.0M+$17.0M± $18M exp surplusrealized +$52.8M 2.7± 2 exp WARrealized 7.4
Prior
Composite #12.0 pedigree (Baseball America #12 (2013)) — fell off 1 list since, regressed → 0.74/yr
Evidence
recent form -0.4/yr over 0.4 season
Talent
0.48/yr blended
Horizon
5.5 control yrs
Héctor SantiagoP·26y·R/L
+$12.8M+$12.8M± $28M exp surplusrealized +$8.8M 2.0± 4 exp WARrealized 1.9
Prior
#915 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 0.7/yr over 1.7 season
Talent
0.50/yr blended
Horizon
4.0 control yrs
ARIARI Kevin Towers net −$259.2M net -21.2
received +$16.0M+$16.0M ± $44M expected surplus · −$14.4M realized received 6.6 ± 6 expected · -0.1 realized WAR
Playoff odds: this deal moved ARI's 2014 odds 3% → 1% (-2.4 pts) — how trade timing is graded ↗
receives — most valuable first
Mark Trumbo1B/DH/OF·28y·R/R
+$11.8M+$11.8M± $34M exp surplusrealized −$13.6M 4.1± 4 exp WARrealized 0.1
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 2.0/yr over 2.1 seasons
Talent
1.37/yr blended
Horizon
3.0 control yrs
Brandon JacobsLF·23y·R/R
+$2.3M+$2.3M± $21M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#318 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
A. J. SchugelP·25y·R/R
+$1.8M+$1.8M± $19M exp surplusrealized −$0.8M 1.2± 2 exp WARrealized -0.2
Prior
#774 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

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.