RRosternomics
𝕏
Josh Byrnes

Josh Byrnes

★ active

Born 1970 · age 56

General manager for the Diamondbacks, Padres, and Rockies (2006–present).

9 seasons with salary-era data across 3 stints. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.

Overview

Titles0
Pennants0
Playoffs1
Record651–744
Win %0.467
-1.1GM WAR — wins above a replacement GM (org-adjusted, shrunk; per season) ±4.9105th/195 execs
4.8Depth — 2+ WAR regulars per season (the breadth that drives TAB, not stars)151st/195 execs
-5.7Dead WAR — WAR/yr bled by sub-replacement players (closer to 0 = better)128th/195 execs
42%Dead money — payroll on <0.5-WAR players (lower = better)141st/195 execs
$20MCheap-talent surplus — $/yr of value from cost-controlled (pre-arb/arb) players above their pay; the selection engine, and the stickiest GM skill we track72nd/195 execs
$10MDrafted surplus — cheap-talent surplus from his own draftees (the develop-from-the-draft engine)65th/195 execs
$8MTraded-for surplus — cheap-talent surplus from cost-controlled players he acquired via trade50th/195 execs
$2MInt'l surplus — cheap-talent surplus from his own international signees59th/195 execs
-9.9TAB — talent above budget — roster-construction alpha (talent your budget bought above expectation), tenure total114th/195 execs
-2.8WAB — realized wins (TAB + the non-repeatable luck of converting talent to wins)78th/195 execs
0.49Acquisition Leverage — playoff pts per acquired WAR, graded once in the year each deal's wins arrive (the repeatable decision skill)148th/195 execs
+21Roster surplus $M29th/195 execs

Tenure breakdown

TeamRoleYearsSzns WAB WAB/yr TAB WAR surp HG Trade FA R5 AcqLev W-L% POPenWS Surp $M
▸ Rockies GM 2026–present 0 +0.0 – +0.0 -2.5 +0.0 +1.1 +1.3 +0.0 0.04 0.394 ––– -16
▸ Padres GM 2012–2014 3 +1.4 +0.48 -5.8 +8.4 +12.2 -65.3 +8.7 +0.0 0.46 0.471 ––– +22
▸ Diamondbacks GM 2006–2010 5 -4.2 -0.85 -4.2 +6.6 +75.9 -28.1 -22.4 -0.0 0.60 0.473 1–– +16
Career total (1985+ data) 9 -2.8 -9.9 +12.5 +88.1 -92.3 -12.3 -0.0 0.49 0.467 1– – +21

Roster Construction

How the roster was sourced

by valueby volume

Share of acquired fWAR by channel vs. league average.

Build channels — net fWAR

Acquired minus surrendered / signed minus walked.

Home-grown (draft/intl)+88.1
Trade-92.3
Free agency-12.3
Rule 5 / minor draft-0.0
Sourcing mix: 55% draft · 14% FA · 31% trade · 0% R5

Roster value distribution — career average — depth vs. stars

Every roster slot ranked best→worst by WAR, averaged across Josh Byrnes's seasons. Bars = his rosters; the black line = the league-average player at each slot. Staying above the line deep into the roster is the depth edge.

Players acquired — 177 players, by realized fWAR for the franchise (scroll for more)

PlayerPosTeam How Year Szns fWAR WAR/yr Lev
Paul Goldschmidt 1B ARI Draft 2009 8 +35.3 +4.4 –
AJ Pollock OF ARI Draft 2009 6 +16.7 +2.8 –
Patrick Corbin P ARI Trade 2010 6 +16.5 +2.7 –
Dan Haren P ARI Trade 2008 3 +15.4 +5.1 7.9
Tyson Ross P SDP Trade 2012 5 +9.8 +2.0 1.4
Daniel Hudson P ARI Trade 2010 6 +8.9 +1.5 0.7
Ian Kennedy P ARI Trade 2010 4 +8.5 +2.1 0.7
Wade Miley P ARI Draft 2008 3 +7.0 +2.3 –
Andrew Cashner P SDP Trade 2012 5 +6.8 +1.4 0.3
René Rivera C SDP Free agency 2012 2 +5.9 +2.9 0.7
Eric Byrnes OF ARI Trade 2006 3 +5.8 +1.9 0.7
Orlando Hudson 2B ARI Trade 2006 3 +5.8 +1.9 0.5
Josh Collmenter P ARI Draft 2007 5 +5.6 +1.1 –
Dinelson Lamet P SDP Intl FA 2014 4 +5.5 +1.4 –
Kelly Johnson 2B ARI Free agency 2009 2 +5.3 +2.7 1.4
Ryan Roberts 2B/3B ARI Free agency 2008 3 +5.3 +1.8 1.8
Hunter Renfroe OF SDP Draft 2013 4 +4.8 +1.2 –
Doug Davis P ARI Trade 2006 3 +4.6 +1.5 0.5
Ender Inciarte OF ARI Intl FA 2008 2 +4.4 +2.2 –
Derek Norris C SDP Trade 2014 2 +4.2 +2.1 0.4
Eric Stults P SDP Trade 2012 2 +4.2 +2.1 0.7
Max Scherzer P ARI Draft 2006 2 +4.0 +2.0 –
Ian Kennedy P SDP Trade 2013 3 +3.6 +1.2 0.1
Justin Upton OF SDP Trade 2014 1 +3.4 +3.4 0.3
Yonder Alonso 1B SDP Trade 2012 4 +3.4 +0.8 0.6
Carlos Quentin OF SDP Trade 2012 2 +3.3 +1.6 1.1
J. J. Putz P ARI Free agency 2010 4 +2.9 +0.7 8.8
David Hernandez P ARI Trade 2010 3 +2.7 +0.9 7.3
Chad Qualls P ARI Trade 2007 2 +2.7 +1.3 2.6
Seth Smith OF SDP Trade 2014 1 +2.7 +2.7 0.4
Juan Cruz P ARI Trade 2006 3 +2.5 +0.8 0.4
Brandon Lyon P ARI Trade 2006 3 +2.4 +0.8 0.2
Joe Saunders P ARI Trade 2010 3 +2.0 +0.7 0.1
Travis Jankowski OF SDP Draft 2012 2 +1.9 +0.9 –
Edinson Vólquez P SDP Trade 2012 2 +1.9 +1.0 0.6
Chase Anderson P ARI Draft 2009 2 +1.8 +0.9 –
Augie Ojeda 2B/3B/SS ARI Free agency 2006 3 +1.7 +0.6 0.1
TJ Rumfield 1B COL Trade 2026 1 +1.7 +1.7 –
Jake McCarthy OF COL Trade 2026 1 +1.6 +1.6 0.1
Felipe López 2B/SS ARI Trade 2009 1 +1.5 +1.5 1.5
Chris Owings 2B/SS ARI Draft 2009 4 +1.4 +0.4 –
Joaquín Benoit P SDP Free agency 2013 2 +1.4 +0.7 0.2
Edwin Jackson P ARI Trade 2010 1 +1.4 +1.4 0.5
Brandon Maurer P SDP Trade 2014 3 +1.3 +0.4 0.1
Adam Eaton OF ARI Draft 2010 2 +1.1 +0.6 –
Zach Duke P ARI Trade 2010 1 +1.0 +1.0 6.7
Matt Kemp OF SDP Trade 2014 1 +1.0 +1.0 0.1
Michael Lorenzen P COL Free agency 2026 1 +0.9 +0.9 0.1
Shawn Kelley P SDP Trade 2014 1 +0.9 +0.9 0.1
Orlando Hernández P ARI Trade 2006 1 +0.9 +0.9 0.2
Jon Garland P ARI Trade 2009 1 +0.9 +0.9 0.9
Henry Blanco C ARI Free agency 2010 1 +0.8 +0.8 5.9
Jeff DaVanon OF ARI Free agency 2006 1 +0.8 +0.8 0.2
José Castillo P SDP Trade 2014 1 +0.8 +0.8 –
Jesse Hahn P SDP Trade 2014 1 +0.8 +0.8 –
Huston Street P SDP Trade 2012 2 +0.8 +0.4 0.6
Adam LaRoche 1B ARI Free agency 2010 1 +0.7 +0.7 0.3
Johnny Estrada C ARI Trade 2006 1 +0.7 +0.7 0.2
Brennan Bernardino P COL Trade 2026 1 +0.7 +0.7 0.0
Alex Dickerson OF SDP Trade 2013 1 +0.6 +0.6 –
Luis Vizcaíno P ARI Trade 2006 1 +0.6 +0.6 0.2
Troy Johnston OF COL Trade 2026 1 +0.6 +0.6 0.0
Enrique Burgos P ARI Intl FA 2007 2 +0.5 +0.3 –
Tommy Layne P SDP Trade 2012 1 +0.5 +0.5 –
Ryan Church OF ARI Trade 2010 1 +0.5 +0.5 0.2
Collin Cowgill OF ARI Draft 2008 1 +0.4 +0.4 –
Tomoyuki Sugano P COL Free agency 2026 1 +0.4 +0.4 0.0
Billy Buckner P ARI Trade 2009 1 +0.4 +0.4 0.7
Cody Ransom 3B/SS SDP Trade 2013 1 +0.4 +0.4 0.3
Matt Davidson 3B/DH ARI Draft 2009 2 +0.3 +0.2 –
Liván Hernández P ARI Trade 2006 2 +0.3 +0.2 0.2
Clay Zavada P ARI Draft 2006 1 +0.3 +0.3 –
Willi Castro 2B/OF COL Free agency 2026 1 +0.3 +0.3 0.0
Jose Quintana P COL Free agency 2026 1 +0.3 +0.3 0.0
Blaine Boyer P SDP Free agency 2014 1 +0.3 +0.3 0.0
Brandon Morrow P SDP Free agency 2014 1 +0.3 +0.3 0.0
Gerardo Reyes P SDP Trade 2014 1 +0.3 +0.3 –
Jorge Julio P ARI Trade 2006 1 +0.3 +0.3 0.1
Mike Bolsinger P ARI Draft 2010 1 +0.2 +0.2 –
Jarrod Parker P ARI Draft 2007 1 +0.2 +0.2 –
Leo Rosales P ARI Trade 2007 2 +0.2 +0.1 –
Bryan Shaw P ARI Draft 2008 2 +0.2 +0.1 –
Clint Barmes 2B/SS SDP Free agency 2014 1 +0.2 +0.2 0.0
Odrisamer Despaigne P SDP Intl FA 2014 1 +0.2 +0.2 –
Sean O'Sullivan P SDP Free agency 2012 1 +0.2 +0.2 0.2
Eddy Rodríguez C SDP Trade 2012 1 +0.2 +0.2 –
Blaine Boyer P ARI Trade 2009 1 +0.2 +0.2 0.3
Jeff Salazar OF ARI Trade 2007 1 +0.2 +0.2 0.1
Keegan Thompson P COL Trade 2026 1 +0.2 +0.2 0.0
Ronny Cedeño SS SDP Trade 2013 1 +0.2 +0.2 0.2
Charles Brewer P ARI Draft 2009 1 +0.1 +0.1 –
Mike Hampton P ARI Free agency 2010 1 +0.1 +0.1 0.0
Kam Mickolio P ARI Trade 2010 1 +0.1 +0.1 0.9
Juan Miranda 1B ARI Trade 2010 1 +0.1 +0.1 0.5
Trent Oeltjen OF ARI Trade 2009 1 +0.1 +0.1 –
Daniel Schlereth P ARI Draft 2008 1 +0.1 +0.1 –
Jason Lane OF SDP Free agency 2013 1 +0.1 +0.1 0.0
Luis Urías 2B/3B SDP Intl FA 2013 1 +0.1 +0.1 –
Brett Wallace 1B SDP Free agency 2014 1 +0.1 +0.1 0.1
Eric Yardley P SDP Intl FA 2013 1 +0.1 +0.1 –
Bob Wickman P ARI Trade 2007 1 +0.1 +0.1 0.0
D. J. Carrasco P ARI Trade 2010 1 +0.1 +0.1 0.0
Jordan Romano P COL Trade 2026 1 +0.1 +0.1 0.0
Bryan Augenstein P ARI Draft 2007 – -0.0 – –
Kris Benson P ARI Free agency 2010 – -0.0 – –
Geoff Blum 3B ARI Free agency 2010 1 +0.0 +0.0 1.8
Ryan Cook P ARI Draft 2008 – -0.0 – –
J. C. Gutiérrez P ARI Trade 2007 1 +0.0 +0.0 1.3
Bradin Hagens P ARI Draft 2009 – -0.0 – –
R. J. Alvarez P SDP Trade 2014 1 +0.0 +0.0 –
Héctor Ambriz P SDP Free agency 2014 – -0.0 – –
Kyle McGrath P SDP Draft 2014 1 -0.0 -0.0 –
Chris Robinson C SDP Trade 2013 – -0.0 – –
Jon Rauch P ARI Trade 2009 1 +0.0 +0.0 0.4
Daniel Cabrera P ARI Trade 2009 1 +0.0 +0.0 0.0
Wil Ledezma P ARI Trade 2008 1 +0.0 +0.0 0.1
Bobby Korecky P ARI Trade 2009 1 +0.0 +0.0 0.0
Dana Eveland P ARI Trade 2007 1 +0.0 +0.0 0.0
John Baker C SDP Trade 2012 1 +0.0 +0.0 0.0
Irving Falu 2B SDP Trade 2014 1 +0.0 +0.0 0.0
Troy Patton P SDP Trade 2014 1 +0.0 +0.0 0.0
Abraham Almonte OF SDP Trade 2014 1 +0.0 +0.0 0.1
Sócrates Brito OF ARI Intl FA 2010 1 -0.1 -0.1 –
Sean Burroughs 3B ARI Free agency 2010 – -0.1 – –
Tony Clark 1B ARI Trade 2008 2 -0.1 -0.1 0.3
Tom Gordon P ARI Free agency 2009 – -0.1 – –
Aaron Heilman P ARI Trade 2009 – -0.1 – –
David Holmberg P ARI Trade 2010 – -0.1 – –
Terry Mulholland P ARI Free agency 2006 – -0.1 – –
Joe Paterson P ARI Rule 5 2010 1 -0.1 -0.1 –
Jailen Peguero P ARI Trade 2007 1 -0.1 -0.1 –
Connor Robertson P ARI Trade 2007 – -0.1 – –
Carlos Rosa P ARI Trade 2010 – -0.1 – –
Daniel Stange P ARI Draft 2006 – -0.1 – –
Josh Wilson SS ARI Free agency 2008 2 -0.1 -0.1 0.0
Billy Buckner P SDP Free agency 2014 – -0.1 – –
Jake Goebbert 1B SDP Trade 2014 – -0.1 – –
Kyle Lloyd P SDP Draft 2013 – -0.1 – –
Aaron Northcraft P SDP Trade 2014 – -0.1 – –
Micah Owings P SDP Free agency 2012 – -0.1 – –
Brandon Allen 1B ARI Trade 2009 2 -0.2 -0.1 –
Luke Carlin C ARI Free agency 2009 – -0.2 – –
Konrad Schmidt C ARI Intl FA 2007 – -0.2 – –
Tyler Skaggs P ARI Trade 2010 1 -0.2 -0.2 –
Brooks Conrad 2B/3B SDP Free agency 2014 – -0.2 – –
Ross Ohlendorf P SDP Free agency 2012 – -0.2 – –
Chris Rearick P SDP Trade 2012 – -0.2 – –
Jeff Suppan P SDP Free agency 2012 – -0.2 – –
Jeff Bajenaru P ARI Trade 2006 – -0.3 – –
Chris Burke 2B/OF ARI Trade 2007 – -0.3 – –
Eury De La Rosa P ARI Intl FA 2008 1 -0.3 -0.3 –
Cole Gillespie OF ARI Trade 2009 1 -0.3 -0.3 –
Zach Kroenke P ARI Rule 5 2009 – -0.3 – –
Xavier Nady OF ARI Free agency 2010 – -0.3 – –
Jeff Francoeur OF SDP Free agency 2014 – -0.3 – –
Walker Lockett P SDP Draft 2012 – -0.3 – –
Chris Nelson 3B SDP Free agency 2014 – -0.3 – –
Donn Roach P SDP Trade 2012 – -0.3 – –
Ryan Wheeler 1B/3B ARI Draft 2009 – -0.4 – –
Josh Whitesell 1B ARI Trade 2008 1 -0.4 -0.4 –
Will Middlebrooks 3B SDP Trade 2014 – -0.4 – –
Jake Elmore SS/OF ARI Draft 2008 – -0.5 – –
Valente Bellozo P COL Free agency 2026 – -0.5 – –
José Rondón SS SDP Trade 2014 – -0.5 – –
Kip Wells P SDP Free agency 2012 – -0.5 – –
Sam Demel P ARI Trade 2010 1 -0.6 -0.6 –
Rodrigo López P ARI Free agency 2009 – -0.6 – –
Edouard Julien 2B COL Trade 2026 – -0.6 – –
Melvin Mora 3B ARI Free agency 2010 – -0.7 – –
Alexi Amarista 2B/SS/OF SDP Trade 2012 3 -0.7 -0.2 0.1
Barry Enright P ARI Draft 2007 – -0.8 – –
Frank Garcés P SDP Trade 2014 1 -0.9 -0.9 –
Tony Abreu 2B/3B ARI Trade 2009 – -1.1 – –
John Hester C ARI Draft 2006 – -1.1 – –
Alberto Callaspo 2B/3B ARI Trade 2006 – -1.2 – –
Alex Romero OF ARI Trade 2007 – -1.2 – –
Jason Marquis P SDP Free agency 2012 1 -1.4 -1.4 0.5

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.

Graphs

drag to zoom · double-click to reset
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.