Rosternomics
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Athletics OAK

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GM: Billy Beane (since 1998)

2015 roster — every player, value & surplus

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-6.8
WAB — wins above budget
-3.1
TAB — roster Talent above budget
68–94 (0.420)
record
+9M
surplus $M (value/$)
24.4
roster fWAR
$70.1M
payroll
PlayerAgeServiceGfWARSalary $MSurplus $M
Sonny Gray 25 pre-arb 31 4.0 0.5 +11.9
Josh Reddick 28 FA-elig 149 2.8 4.1 +4.9
Jesse Chavez 31 FA-elig 30 2.5 2.1 +5.8
Scott Kazmir↔ HOU 31 FA-elig 18 2.4 7.5 +0.1
Billy Burns 25 pre-arb 125 1.9 0.4 +5.6
Stephen Vogt 30 arb 136 1.8 0.5 +5.1
Jesse Hahn 25 pre-arb 16 1.7 0.5 +4.7
Ben Zobrist↔ KCR 34 FA-elig 67 1.5 4.0 +0.9
Chris Bassitt 26 pre-arb 18 1.5 0.3 +4.4
Danny Valencia↔ TOR 30 arb 47 1.5 0.7 +3.9
Marcus Semien 24 pre-arb 155 1.4 0.5 +4.1
Drew Pomeranz 26 arb 53 1.4 0.5 +4.0
Josh Phegley 27 pre-arb 73 1.4 0.5 +4.0
Mark Canha 26 – 124 1.3 0.5 +3.6
Brett Lawrie 25 arb 149 0.9 1.9 +0.9
Fernando Rodriguez Jr. 31 FA-elig 56 0.8 0.6 +2.0
Jake Smolinski↔ TEX 26 pre-arb 41 0.6 0.3 +1.6
Kendall Graveman 24 pre-arb 21 0.5 0.5 +1.2
Eric Sogard 29 arb 120 0.4 1.1 +0.1
Tyler Clippard↔ NYM 30 FA-elig 37 0.3 4.5 -3.5
Sean Doolittle 28 arb 12 0.3 0.8 +0.1
Pat Venditte 30 – 26 0.1 0.3 +0.1
Félix Doubront↔ TOR 27 arb 11 0.1 0.1 +0.3
Sam Fuld 33 FA-elig 120 0.1 1.8 -1.4
Danny Coulombe↔ LAD 25 pre-arb 9 0.1 0.0 +0.2
Sean Nolin 25 pre-arb 6 0.1 0.1 +0.1
Ryan Cook↔ BOS 28 arb 4 0.0 0.6 -0.5
Bryan Anderson 28 pre-arb 4 0.0 0.0 +0.1
Arnold Leon 26 pre-arb 19 0.0 0.2 -0.1
Tyler Ladendorf 27 – 9 0.0 0.1 -0.1
Eric O'Flaherty↔ NYM 30 FA-elig 25 -0.0 3.4 -3.4
Aaron Brooks↔ KCR 25 pre-arb 11 -0.0 0.2 -0.2
Chad Smith 25 – 2 -0.0 – –
Andy Parrino 29 pre-arb 17 -0.1 0.1 -0.2
Brad Mills 30 pre-arb 1 -0.1 0.0 -0.3
Evan Scribner 29 arb 54 -0.1 0.5 -0.8
Angel Castro 32 – 5 -0.1 0.1 -0.4
Dan Otero 30 arb 41 -0.1 0.5 -0.9
Edward Mujica↔ BOS 31 FA-elig 38 -0.2 3.7 -4.3
Jason Pridie 31 pre-arb 6 -0.2 0.1 -0.7
Ryan Dull 25 – 13 -0.3 – –
Ike Davis 28 arb 74 -0.4 3.8 -5.0
Cody Ross 34 – 9 -0.4 – –
Cody Martin↔ ATL 25 pre-arb 4 -0.4 0.0 -1.4
Barry Zito 37 FA-elig 3 -0.5 1.1 -2.5
R.J. Alvarez 24 pre-arb 21 -0.5 0.5 -2.0
Max Muncy 24 – 45 -0.5 0.1 -1.7
Fernando Abad 29 arb 62 -0.6 1.1 -3.0
Carson Blair 25 – 11 -0.6 0.1 -2.1
Craig Gentry 31 FA-elig 26 -0.7 1.6 -3.8
Coco Crisp 35 FA-elig 44 -0.7 11.0 -13.2
Billy Butler 29 FA-elig 151 -0.8 6.7 -9.3

52 players appeared (WAR is complete); salary & surplus are on record for 49 of them (94%). Players without a salary show "–" — no single historical salary source is fully complete (especially 2020–2022).

WAR = FanGraphs (fWAR). Green = produced more value than paid (bargain); red = paid more than produced. Service: pre-arb (<3 yr) / arb (3–6) / FA-eligible (6+). Click headers to sort.

History: front-office performance & develop-vs-buy (1985–2024)

Trade ledger (realized WAR, all-time)

Best acquisitions
PlayerYearWAR for OAK
Rickey Henderson198926.8
Mark Ellis200122.1
Dennis Eckersley198719.3
Carney Lansford198216.7
Josh Donaldson200813.8
Jed Lowrie201313.0
Brett Anderson200711.5
Sean Manaea201511.2
Ones that got away
PlayerYear tradedWAR elsewhere
Rickey Henderson198426.6
Carlos González200824.7
Andre Ethier200524.4
Gio Gonzalez201120.8
Josh Donaldson201420.4
Mark McGwire199719.7
Aaron Harang200319.3
Jeremy Bonderman200215.8
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.