Rosternomics
JK

Jeff Kingston

General manager for the Mariners (2015–2015).

1 seasons with salary-era data across 1 stint. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.

Titles0
Pennants0
Playoffs0
Record76–86
Win %0.469
-6.3WAB — wins above budget97th/195 execs
-8.1Talent above budget — roster-construction alpha (talent your budget bought above expectation)105th/195 execs
0.63Acquisition leverage — playoff pts each bought win added, given the roster it joined (did you buy where wins matter?)128th/195 execs
-12.8WAR surplus (era-neutral, win-equiv)66th/195 execs
-40Roster surplus $M90th/195 execs

How the roster was sourced

Share of gross-positive acquired fWAR by channel (vs. league average).

Build channels — net fWAR

Acquired minus surrendered / signed minus walked.

Home-grown (draft/intl)-0.2
Trade-19.2
Free agency-4.8
Rule 5 / minor draft+0.0
Sourcing mix: 0% draft · 30% FA · 70% trade · 0% R5

Tenure breakdown

TeamRoleYearsSzns WAB WAB/yr TAB WAR surp HG Trade FA R5 AcqLev W-L% POPenWS Surp $M
Mariners GM 2015–2015 1 -6.3 -6.27 -8.1 -12.8 -0.2 -19.2 -4.8 +0.0 0.63 0.469 -40
Career total (1985+ data) 1 -6.3 -8.1 -12.8 -0.2 -19.2 -4.8 +0.0 0.63 0.469 -40

Players acquired — 19 players, by realized fWAR for the franchise (scroll for more)

PlayerPosTeam How Year fWAR
Nate Karns P SEA Trade 2015 +1.4
Nori Aoki OF SEA Free agency 2015 +1.3
Tony Zych P SEA Trade 2015 +1.1
Steve Cishek P SEA Free agency 2015 +1.0
Anthony Misiewicz P SEA Draft 2015 +0.9
Shawn O'Malley SS/OF SEA Free agency 2015 +0.5
Evan Scribner P SEA Trade 2015 +0.3
Mike Montgomery P SEA Trade 2015 +0.2
Vidal Nuño P SEA Trade 2015 +0.1
Art Warren P SEA Draft 2015 +0.1
Jonathan Aro P SEA Trade 2015 -0.0
Adam Lind 1B/DH SEA Trade 2015 -0.1
Andrew Moore P SEA Draft 2015 -0.1
Ljay Newsome P SEA Draft 2015 -0.1
Donn Roach P SEA Free agency 2015 -0.1
Adrian Sampson P SEA Trade 2015 -0.1
Rickie Weeks 2B SEA Free agency 2015 -0.6
Chris Iannetta C SEA Free agency 2015 -0.7
Braden Bishop OF SEA Draft 2015 -0.9

WAB = wins above what the team's payroll predicted (resource-controlled). WAR surplus = era-neutral value (WAR minus payroll in win-equivalents). Roster surplus $M = dollar value of WAR over cost. Build channels (realized fWAR): HG = home-grown via amateur draft / international signing; Trade = acquired minus surrendered (incl. purchases/waivers); FA = signed minus walked; R5 = Rule-5 / minor-league-draft pickups. Credit follows the acquisition year — home-grown to the regime at the player's draft/signing (not whoever was in the chair when he peaked), trade/FA/R5 to the GM who made the move. Players acquired as prospects before debuting (e.g. Smoltz, Bagwell; Rule-5 picks like Uggla) are counted as trade/R5, not home-grown. All are franchise-level outcomes during the stint, not solely attributable to one executive.