Rosternomics
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February 13, 2014

WSNTBR

TBR won this trade +$4.0M surplus WSN won this trade +0.6 WAR
WSNWSN Michael Rizzo net −$4.0M net +0.6
received +$14.4M+$14.4M ± $45M expected surplus · +$7.2M realized received 6.0 ± 6 expected · 2.1 realized WAR
Playoff odds: this deal moved WSN's 2014 odds 87% → 89% (+1.5 pts) — how trade timing is graded ↗
receives — most valuable first
José LobatónC·29y·B/R
+$10.0M+$10.0M± $35M exp surplusrealized −$4.8M 3.5± 4 exp WARrealized 0.5
Prior
no pedigree — league baseline → 0.21/yr
Evidence
recent form 1.7/yr over 1.1 season
Talent
0.95/yr blended
Horizon
4.0 control yrs × 0.91 age decline
Drew VettlesonRF·22y·L/R
+$2.3M+$2.3M± $21M exp surplusrealized +$0.0M 1.3± 3 exp WARrealized 0.0
Prior
#42 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
Felipe VázquezP·22y·L/L
+$1.8M+$1.8M± $19M exp surplusrealized +$12.0M 1.2± 2 exp WARrealized 1.6
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
TBRTBR Andrew Friedman net +$4.0M net -0.6
received −$4.8M−$4.8M ± $31M expected surplus · +$11.2M realized received 0.0 ± 4 expected · 1.5 realized WAR
Playoff odds: this deal moved TBR's 2014 odds 19% → 17% (-2.1 pts) — how trade timing is graded ↗
receives — most valuable first
Nate KarnsP·26y·R/R
−$4.5M−$4.5M± $31M exp surplusrealized +$11.2M 0.0± 4 exp WARrealized 1.5
Prior
#309 overall draft pick — at the league baseline → 0.21/yr
Evidence
recent form -4.9/yr over 0.1 season
Talent
-0.18/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.