
General manager for the Phillies (2025–present).
2 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ▸ Phillies | GM | 2025–present | 1 | +5.8 | +5.83 | +9.2 | -40.2 | -1.0 | +0.8 | -5.6 | +0.0 | 4.13 | 0.577 | 1 | – | – | -208 |
| Career total (1985+ data) | 2 | +5.8 | +9.2 | -40.2 | -1.0 | +0.8 | -5.6 | +0.0 | 4.13 | 0.577 | 1 | – | – | -208 | |||
Acquired minus surrendered / signed minus walked.
Every roster slot ranked best→worst by WAR, averaged across Preston Mattingly'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 |
|---|---|---|---|---|---|---|---|---|
| Jesús Luzardo | P | PHI | Trade | 2025 | 2 | +8.6 | +4.3 | 23.5 |
| Jhoan Durán | P | PHI | Trade | 2025 | 2 | +1.9 | +1.0 | 3.9 |
| Harrison Bader | OF | PHI | Trade | 2025 | 1 | +1.2 | +1.2 | 5.4 |
| Derek Hill | OF | PHI | Trade | 2026 | 1 | +0.8 | +0.8 | 4.7 |
| Jonathan Bowlan | P | PHI | Trade | 2026 | 1 | +0.8 | +0.8 | 4.5 |
| Max Kepler | OF | PHI | Trade | 2025 | 1 | +0.6 | +0.6 | 2.7 |
| Tim Mayza | P | PHI | Free agency | 2026 | 1 | +0.5 | +0.5 | 3.2 |
| Walker Buehler | P | PHI | Trade | 2025 | 1 | +0.3 | +0.3 | 1.5 |
| Justin Crawford | OF | PHI | Draft | 2026 | 1 | +0.2 | +0.2 | – |
| Brad Keller | P | PHI | Free agency | 2025 | 1 | +0.2 | +0.2 | 1.0 |
| Trevor Richards | P | PHI | Trade | 2026 | 1 | +0.2 | +0.2 | 0.9 |
| Zach Pop | P | PHI | Free agency | 2025 | 1 | +0.1 | +0.1 | 0.6 |
| Alan Rangel | P | PHI | Draft | 2025 | 1 | +0.1 | +0.1 | – |
| Kyle Backhus | P | PHI | Trade | 2025 | 1 | +0.0 | +0.0 | 0.1 |
| Steward Berroa | OF | PHI | Trade | 2026 | – | -0.0 | – | – |
| Adolis García | OF | PHI | Free agency | 2025 | 1 | +0.0 | +0.0 | 0.2 |
| Nolan Hoffman | P | PHI | Trade | 2025 | 2 | +0.0 | +0.0 | – |
| Andrew Painter | P | PHI | Draft | 2026 | – | -0.0 | – | – |
| Lou Trivino | P | PHI | Trade | 2025 | 1 | +0.0 | +0.0 | 0.5 |
| Daniel Robert | P | PHI | Trade | 2025 | – | -0.1 | – | – |
| Dylan Moore | 2B/OF | PHI | Free agency | 2026 | – | -0.2 | – | – |
| Felix Reyes | 1B/OF | PHI | Draft | 2026 | – | -0.4 | – | – |
| Otto Kemp | 3B/OF | PHI | Draft | 2025 | – | -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.