
General manager for the Royals (2021–present).
6 seasons with salary-era data across 1 stint. All figures are franchise-level outcomes during the tenure, not solely attributable to one executive.
| Team | Role | Years | Szns | WAB | WAB/yr | TAB | WAR surp | HG | Trade | FA | R5 | AcqLev | W-L% | PO | Pen | WS | Surp $M |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▸ Royals | GM | 2021–present | 5 | -22.0 | -4.39 | -11.0 | -6.3 | +61.1 | +0.9 | +6.9 | +0.0 | 1.88 | 0.443 | 1 | – | – | -40 |
| Career total (1985+ data) | 6 | -22.0 | -11.0 | -6.3 | +61.1 | +0.9 | +6.9 | +0.0 | 1.88 | 0.443 | 1 | – | – | -40 | |||
Acquired minus surrendered / signed minus walked.
Every roster slot ranked best→worst by WAR, averaged across J.J. Picollo'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.
| Player | Pos | Team | How | Year | Szns | fWAR | WAR/yr | Lev |
|---|---|---|---|---|---|---|---|---|
| Bobby Witt | SS | KCR | Draft | 2022 | 5 | +31.4 | +6.3 | – |
| Maikel García | 3B | KCR | Draft | 2022 | 5 | +10.5 | +2.1 | – |
| Cole Ragans | P | KCR | Trade | 2023 | 3 | +9.1 | +3.0 | 0.2 |
| Michael Wacha | P | KCR | Free agency | 2023 | 3 | +8.8 | +2.9 | 12.0 |
| Seth Lugo | P | KCR | Free agency | 2023 | 3 | +6.3 | +2.1 | 16.7 |
| Vinnie Pasquantino | 1B | KCR | Draft | 2022 | 4 | +4.4 | +1.1 | – |
| Freddy Fermin | C | KCR | Draft | 2022 | 3 | +3.7 | +1.2 | – |
| Michael Taylor | OF | KCR | Trade | 2021 | 2 | +3.7 | +1.8 | 0.6 |
| Noah Cameron | P | KCR | Draft | 2025 | 2 | +3.2 | +1.6 | – |
| Michael Massey | 2B | KCR | Draft | 2022 | 4 | +3.2 | +0.8 | – |
| Carter Jensen | C/DH | KCR | Draft | 2025 | 2 | +2.3 | +1.2 | – |
| Dairon Blanco | OF | KCR | Draft | 2022 | 2 | +1.7 | +0.8 | – |
| Andrew Benintendi | OF | KCR | Trade | 2021 | 2 | +1.4 | +0.7 | 0.4 |
| Aroldis Chapman | P | KCR | Trade | 2023 | 1 | +1.3 | +1.3 | 0.1 |
| Mike Yastrzemski | OF | KCR | Trade | 2025 | 1 | +1.3 | +1.3 | 2.8 |
| Michael Lorenzen | P | KCR | Free agency | 2025 | 2 | +1.2 | +0.6 | 1.8 |
| John Schreiber | P | KCR | Trade | 2024 | 2 | +1.2 | +0.6 | 4.1 |
| Lane Thomas | OF | KCR | Free agency | 2025 | 1 | +1.0 | +1.0 | 1.0 |
| Alec Marsh | P | KCR | Draft | 2023 | 1 | +0.9 | +0.9 | – |
| Tyler Tolbert | OF | KCR | Draft | 2025 | 2 | +0.9 | +0.4 | – |
| Taylor Clarke | P | KCR | Free agency | 2021 | 2 | +0.8 | +0.4 | 0.0 |
| Carlos Estévez | P | KCR | Free agency | 2025 | 1 | +0.8 | +0.8 | 2.4 |
| Drew Waters | OF | KCR | Trade | 2022 | 2 | +0.7 | +0.4 | – |
| Ryan Yarbrough | P | KCR | Trade | 2023 | 1 | +0.7 | +0.7 | 0.1 |
| Paul DeJong | SS | KCR | Trade | 2024 | 1 | +0.7 | +0.7 | 2.6 |
| Lucas Erceg | P | KCR | Trade | 2024 | 2 | +0.6 | +0.3 | 5.2 |
| Nick Loftin | 2B | KCR | Draft | 2023 | 3 | +0.6 | +0.2 | – |
| James McArthur | P | KCR | Trade | 2023 | 2 | +0.6 | +0.3 | – |
| Austin Cox | P | KCR | Draft | 2023 | 1 | +0.5 | +0.5 | – |
| Garrett Hampson | 2B/OF | KCR | Free agency | 2023 | 1 | +0.5 | +0.5 | 1.9 |
| Stephen Kolek | P | KCR | Trade | 2025 | 2 | +0.5 | +0.2 | 2.0 |
| Domingo Tapia | P | KCR | Trade | 2021 | 1 | +0.5 | +0.5 | 0.2 |
| Hanser Alberto | 2B/3B | KCR | Free agency | 2021 | 1 | +0.4 | +0.4 | 0.1 |
| Luinder Avila | P | KCR | Draft | 2025 | 2 | +0.4 | +0.2 | – |
| Amir Garrett | P | KCR | Trade | 2022 | 1 | +0.3 | +0.3 | 0.0 |
| Luke Maile | C | KCR | Free agency | 2025 | 2 | +0.3 | +0.2 | 0.7 |
| John Rave | OF | KCR | Draft | 2025 | 2 | +0.3 | +0.2 | – |
| Joel Payamps | P | KCR | Trade | 2021 | 2 | +0.3 | +0.1 | 0.1 |
| Hunter Harvey | P | KCR | Trade | 2025 | 1 | +0.3 | +0.3 | 1.1 |
| Isaac Collins | OF | KCR | Trade | 2025 | 1 | +0.2 | +0.2 | 0.3 |
| Jordan Lyles | P | KCR | Free agency | 2022 | 2 | +0.2 | +0.1 | 0.0 |
| Elías Díaz | C | KCR | Trade | 2026 | 1 | +0.2 | +0.2 | 0.2 |
| Luke Weaver | P | KCR | Trade | 2022 | 1 | +0.2 | +0.2 | 0.0 |
| Wyatt Mills | P | KCR | Trade | 2022 | 1 | +0.2 | +0.2 | 0.0 |
| Nelson Velázquez | DH/OF | KCR | Trade | 2023 | 1 | +0.2 | +0.2 | 0.1 |
| José Cuas | P | KCR | Draft | 2022 | 2 | +0.1 | +0.1 | – |
| John McMillon | P | KCR | Draft | 2023 | 1 | +0.1 | +0.1 | – |
| Daniel Mengden | P | KCR | Free agency | 2022 | 1 | +0.1 | +0.1 | 0.0 |
| Matt Peacock | P | KCR | Trade | 2022 | 1 | +0.1 | +0.1 | 0.0 |
| Jake Brentz | P | KCR | Trade | 2021 | 1 | +0.0 | +0.0 | – |
| Steven Cruz | P | KCR | Trade | 2023 | 3 | -0.0 | -0.0 | – |
| Tyler Duffey | P | KCR | Free agency | 2024 | 1 | +0.0 | +0.0 | 0.1 |
| Alex Lange | P | KCR | Free agency | 2025 | – | -0.0 | – | – |
| Starling Marte | OF | KCR | Free agency | 2026 | – | -0.0 | – | – |
| Mike Mayers | P | KCR | Free agency | 2022 | – | -0.0 | – | – |
| Logan Porter | C | KCR | Draft | 2023 | 1 | +0.0 | +0.0 | – |
| Anthony Veneziano | P | KCR | Draft | 2023 | 2 | +0.0 | +0.0 | – |
| Nick Wittgren | P | KCR | Free agency | 2022 | 1 | +0.0 | +0.0 | 0.0 |
| Josh Taylor | P | KCR | Trade | 2023 | 1 | +0.0 | +0.0 | 0.0 |
| Anthony Misiewicz | P | KCR | Trade | 2022 | 1 | +0.0 | +0.0 | 0.0 |
| Trevor Richards | P | KCR | Trade | 2025 | 1 | +0.0 | +0.0 | 0.0 |
| Dan Altavilla | P | KCR | Free agency | 2023 | – | -0.1 | – | – |
| Jonathan Bowlan | P | KCR | Draft | 2023 | 1 | -0.1 | -0.1 | – |
| Tyler Cropley | C | KCR | Draft | 2023 | – | -0.1 | – | – |
| Nate Eaton | OF | KCR | Draft | 2022 | 1 | -0.1 | -0.1 | – |
| Tyler Gentry | OF | KCR | Draft | 2024 | – | -0.1 | – | – |
| Brewer Hicklen | OF | KCR | Draft | 2022 | – | -0.1 | – | – |
| Brooks Kriske | P | KCR | Free agency | 2022 | – | -0.1 | – | – |
| Samad Taylor | 2B/OF | KCR | Trade | 2022 | – | -0.1 | – | – |
| Cavan Biggio | 2B | KCR | Free agency | 2025 | – | -0.2 | – | – |
| Mason Black | P | KCR | Trade | 2025 | – | -0.2 | – | – |
| Jac Caglianone | OF | KCR | Draft | 2025 | 1 | -0.2 | -0.2 | – |
| Rich Hill | P | KCR | Free agency | 2025 | – | -0.2 | – | – |
| Sam Long | P | KCR | Free agency | 2023 | 1 | -0.2 | -0.2 | 0.7 |
| Josh Rojas | 2B/3B | KCR | Free agency | 2026 | – | -0.2 | – | – |
| Matt Sauer | P | KCR | Draft | 2024 | – | -0.2 | – | – |
| Mitch Spence | P | KCR | Trade | 2026 | – | -0.2 | – | – |
| Chris Stratton | P | KCR | Free agency | 2023 | 1 | -0.2 | -0.2 | 0.1 |
| Arodys Vizcaíno | P | KCR | Free agency | 2022 | – | -0.2 | – | – |
| CJ Alexander | 3B | KCR | Trade | 2022 | – | -0.3 | – | – |
| Wade Davis | P | KCR | Free agency | 2021 | 4 | -0.3 | -0.1 | 1.7 |
| Matt Duffy | 3B | KCR | Free agency | 2023 | – | -0.3 | – | – |
| Bailey Falter | P | KCR | Trade | 2025 | 1 | -0.3 | -0.3 | 0.0 |
| Eli Morgan | P | KCR | Free agency | 2026 | – | -0.3 | – | – |
| Ronald Bolaños | P | KCR | Trade | 2021 | 1 | -0.3 | -0.3 | 0.1 |
| Kameron Misner | OF | KCR | Trade | 2025 | – | -0.4 | – | – |
| Collin Snider | P | KCR | Draft | 2022 | – | -0.4 | – | – |
| Jackie Bradley | OF | KCR | Free agency | 2023 | – | -0.5 | – | – |
| Adam Frazier | 2B/OF | KCR | Free agency | 2024 | 1 | -0.5 | -0.5 | 1.4 |
| Franmil Reyes | DH/OF | KCR | Free agency | 2023 | – | -0.5 | – | – |
| Carlos Santana | 1B | KCR | Trade | 2022 | 1 | -0.6 | -0.6 | 0.0 |
| Nick Pratto | 1B | KCR | Draft | 2022 | 1 | -0.8 | -0.8 | – |
| Hunter Renfroe | OF | KCR | Free agency | 2023 | 1 | -0.8 | -0.8 | 0.4 |
| MJ Melendez | OF | KCR | Draft | 2022 | 1 | -1.1 | -1.1 | – |
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.