Rosternomics
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January 19, 2021 · 3-team trade

SDPNYMPIT

SDP won this trade +$36.8M surplus SDP won this trade +2.3 WAR
SDPSDP AJ Preller net +$36.8M net +2.3
received +$19.2M+$36.0M ± $44M expected surplus · +$64.0M realized received 10.9 ± 6 expected · 9.6 realized WAR
Playoff odds: this deal moved SDP's 2021 odds 18% → 21% (+2.9 pts) — how trade timing is graded ↗
receives — most valuable first
Joe MusgroveP·28y·R/R
+$19.4M+$35.7M± $44M exp surplusrealized +$64.0M 10.9± 6 exp WARrealized 9.6
Prior
league baseline (track record outweighs draft pedigree) → 0.21/yr
Evidence
recent form 3.0/yr over 1.5 season
Talent
1.78/yr blended
Horizon
7.0 control yrs × 0.88 age decline
NYMNYM Sandy Alderson net +$2.4M net +0.2
received +$12.0M+$12.0M ± $39M expected surplus · +$5.6M realized received 3.2 ± 5 expected · 1.3 realized WAR
Playoff odds: this deal moved NYM's 2021 odds 23% → 26% (+2.9 pts) — how trade timing is graded ↗
receives — most valuable first
Joey LucchesiP·28y·L/L
+$12.2M+$12.2M± $39M exp surplusrealized +$5.6M 3.2± 5 exp WARrealized 1.3
Prior
#114 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form 1.5/yr over 1.1 season
Talent
0.84/yr blended
Horizon
4.0 control yrs × 0.96 age decline
PITPIT Ben Cherington net −$39.2M net -2.5
received +$6.4M+$6.4M ± $47M expected surplus · +$24.8M realized received 5.5 ± 6 expected · 7.1 realized WAR
Playoff odds: this deal moved PIT's 2021 odds 0% → 0% (-0 pts) — how trade timing is graded ↗
receives — most valuable first
Hudson HeadCF·20y·L/L
+$2.3M+$2.3M± $22M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#84 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
Drake FellowsP·23y·L/R
+$2.3M+$2.3M± $22M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#173 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
Endy RodríguezC·21y·S/R
+$1.8M+$1.8M± $20M exp surplusrealized +$3.2M 1.2± 2 exp WARrealized 1.1
Prior
no pedigree — league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
5.5 control yrs
Omar CruzP·22y·L/L
+$1.8M+$1.8M± $20M exp surplusrealized +$0.0M 1.2± 2 exp WARrealized 0.0
Prior
no pedigree — league baseline → 0.21/yr
Evidence
no MLB track record — leans on pedigree
Talent
0.21/yr blended
Horizon
5.5 control yrs
David BednarP·26y·L/R
−$1.8M−$1.8M± $22M exp surplusrealized +$21.6M 0.5± 3 exp WARrealized 6.0
Prior
#1044 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form -0.2/yr over 0.4 season
Talent
0.11/yr blended
Horizon
5.5 control yrs × 0.91 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.