Rosternomics
← Trade Database
December 6, 1989

DETSTL

STL won this trade +$1.6M surplus DET won this trade +0.0 WAR
DETDET Bill Lajoie net −$1.6M net +0.0
received −$6.4M−$6.4M ± $44M expected surplus · −$1.6M realized received 0.0 ± 6 expected · 0.0 realized WAR
Playoff odds: this deal moved DET's 1990 odds 5% → 5% (-0.1 pts) — how trade timing is graded ↗
receives — most valuable first
Jim Lindeman1B/OF·28y·R/R
−$2.2M−$2.2M± $22M exp surplusrealized −$0.8M 0.0± 3 exp WARrealized -0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.6/yr over 0.8 season
Talent
-0.12/yr blended
Horizon
3.0 control yrs
Matt KinzerP·27y·R/R
−$4.5M−$4.5M± $38M exp surplusrealized −$0.8M 0.0± 5 exp WARrealized -0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form -0.9/yr over 0.3 season
Talent
-0.00/yr blended
Horizon
5.5 control yrs
STLSTL Dal Maxvill net +$1.6M net +0.0
received +$3.2M+$3.2M ± $37M expected surplus · +$0.0M realized received 1.7 ± 5 expected · 0.0 realized WAR
Playoff odds: this deal moved STL's 1990 odds 30% → 31% (+0.4 pts) — how trade timing is graded ↗
receives — most valuable first
Pat AustinSS·24y·R/R
+$2.3M+$2.3M± $33M exp surplusrealized +$0.0M 1.3± 4 exp WARrealized 0.0
Prior
#125 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
Bill Henderson
+$0.3M+$0.3M± $11M exp surplusrealized +$0.0M 0.2± 1 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)
Marcos Betances
+$0.3M+$0.3M± $11M exp surplusrealized +$0.0M 0.2± 1 exp WARrealized 0.0
Unidentified minor-league throw-in — valued at the ~0.2 WAR base rate (most produce nothing)

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.