Rosternomics
← Trade Database
December 12, 1990

TEXSDP

TEX won this trade +$0.8M surplus TEX won this trade +0.5 WAR
TEXTEX Tom Grieve net +$0.8M net +0.5
received +$1.6M+$1.6M ± $24M expected surplus · −$2.4M realized received 1.2 ± 3 expected · 0.0 realized WAR
Playoff odds: this deal moved TEX's 1991 odds 17% → 19% (+1.6 pts) — how trade timing is graded ↗
receives — most valuable first
Mark ParentC·29y·R/R
+$1.3M+$1.3M± $24M exp surplusrealized −$2.4M 1.2± 3 exp WARrealized -0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 0.6/yr over 0.9 season
Talent
0.38/yr blended
Horizon
5.0 control yrs × 0.63 age decline
SDPSDP Jack McKeon net −$0.8M net -0.5
received −$4.0M−$4.0M ± $26M expected surplus · −$3.2M realized received 0.0 ± 3 expected · -0.5 realized WAR
Playoff odds: this deal moved SDP's 1991 odds 26% → 24% (-2 pts) — how trade timing is graded ↗
receives — most valuable first
Scott Coolbaugh3B·25y·R/R
−$3.7M−$3.7M± $26M exp surplusrealized −$3.2M 0.0± 3 exp WARrealized -0.5
Prior
Composite #94.0 pedigree (Baseball America #94 (1990)) — fell off 1 list since, regressed → 0.22/yr
Evidence
recent form -0.6/yr over 0.6 season
Talent
-0.02/yr blended
Horizon
5.0 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.