Rosternomics
𝕏
SP

Scott Proefrock

General manager for the Phillies (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
Record63–99
Win %0.389
-15.6WAB — wins above budget135th/195 execs
-12.0Talent above budget — roster-construction alpha (talent your budget bought above expectation)122nd/195 execs
0.17Acquisition leverage — playoff pts each bought win added, given the roster it joined (did you buy where wins matter?)170th/195 execs
-10.4WAR surplus (era-neutral, win-equiv)63rd/195 execs
-33Roster surplus $M88th/195 execs

How the roster was sourced

by valueby volume

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)+1.8
Trade+3.6
Free agency+1.8
Rule 5 / minor draft-1.1
Sourcing mix: 13% draft · 5% FA · 83% trade · 0% R5

Tenure breakdown

TeamRoleYearsSzns WAB WAB/yr TAB WAR surp HG Trade FA R5 AcqLev W-L% POPenWS Surp $M
▸ Phillies GM 2015–2015 1 -15.6 -15.61 -12.0 -10.4 +1.8 +3.6 +1.8 -1.1 0.17 0.389 ––– -33
Career total (1985+ data) 1 -15.6 -12.0 -10.4 +1.8 +3.6 +1.8 -1.1 0.17 0.389 –– – -33

Players acquired — 23 players, by realized fWAR for the franchise (scroll for more)

PlayerPosTeam How Year fWAR
Jerad Eickhoff P PHI Trade 2015 +5.7
Nick Pivetta P PHI Trade 2015 +3.6
Jorge Alfaro C PHI Trade 2015 +2.9
Aaron Harang P PHI Free agency 2015 +1.3
Bailey Falter P PHI Draft 2015 +0.9
Jeanmar Gómez P PHI Free agency 2015 +0.9
Rafael Marchán C PHI Intl FA 2015 +0.7
Elvis Araújo P PHI Trade 2015 +0.3
David Hernandez P PHI Free agency 2015 +0.3
Alec Asher P PHI Trade 2015 +0.2
Chad Billingsley P PHI Free agency 2015 +0.2
Luke Williams 3B/OF PHI Draft 2015 +0.2
Scott Kingery SS/OF PHI Draft 2015 +0.1
Kevin Correia P PHI Free agency 2015 -0.0
Daniel Stumpf P PHI Rule 5 2015 -0.1
James Russell P PHI Free agency 2015 -0.3
Nick Williams OF PHI Trade 2015 -0.3
Darnell Sweeney 2B/OF PHI Trade 2015 -0.4
Jake Thompson P PHI Trade 2015 -0.4
Emmanuel Burriss 2B PHI Free agency 2015 -0.5
Frank Herrmann P PHI Free agency 2015 -0.6
Dustin McGowan P PHI Free agency 2015 -0.6
Tyler Goeddel OF PHI Rule 5 2015 -1.0

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.

Rosternomics — quantifying front-office skill, attribution-clean. Follow @rosternomics on X. Decision-makers on record back to 1933; resource-controlled metrics (WAR & payroll) cover 1985–2026.
Data: FanGraphs (WAR), Baseball-Reference & the Chadwick Bureau register (rosters, IDs), the Lahman Database, Baseball America prospect rankings (via The Baseball Cube), and public payroll records. Transaction and trade data was obtained free of charge from and is copyrighted by Retrosheet. Executive birth/death data via Wikidata (CC0); bios are original. Emoji graphics by OpenMoji (CC BY-SA 4.0).
All figures are franchise-level outcomes credited to the decision-maker in the acquisition year — not solely attributable to one executive.