Rosternomics
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April 27, 1998

ARISFG

ARI won this trade +$3.2M surplus ARI won this trade +0.5 WAR
ARIARI Joe Garagiola net +$3.2M net +0.5
received −$0.8M−$0.8M ± $15M expected surplus · −$0.8M realized received 0.7 ± 2 expected · 0.0 realized WAR
Playoff odds: this deal moved ARI's 1998 odds 1% → 1% (+0.1 pts) — how trade timing is graded ↗
receives — most valuable first
Ricky PickettP·28y·L/L
−$0.8M−$0.8M± $15M exp surplusrealized −$0.8M 0.7± 2 exp WARrealized -0.0
Prior
#773 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 × 0.61 age decline
SFGSFG Brian Sabean net −$3.2M net -0.5
received +$2.4M+$2.4M ± $7M expected surplus · −$4.0M realized received 0.6 ± 1 expected · -0.5 realized WAR
Playoff odds: this deal moved SFG's 1998 odds 62% → 60% (-2.4 pts) — how trade timing is graded ↗
receives — most valuable first
Chris JonesOF·32y·R/R
+$2.8M+$2.1M± $7M exp surplusrealized −$4.0M 0.6± 1 exp WARrealized -0.5
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.7/yr over 1.4 season
Talent
0.49/yr blended
Horizon
1.5 control yr × 0.88 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.