Phillies MLB Managerial Shakeup
Key Questions
Why did the Phillies fire Rob Thomson?
The Phillies fired manager Rob Thomson after a 9-19 start to the season and a 10-game losing skid. Despite his franchise-best winning percentage and four straight postseasons, the team sought a change.
Who has been named as the interim manager for the Phillies?
Don Mattingly has been appointed interim manager. His son Preston serves as the team's GM.
What issues does this managerial change expose for the Phillies?
The shakeup highlights roster and rotation flaws despite the team's big payroll. It reflects deeper problems beyond Thomson's successful tenure.
Phillies fire Rob Thomson (franchise best win%, 4 straight postseasons) after 9-19 start/10-game skid; Don Mattingly named interim manager (son Preston GM); exposes roster/rotation flaws amid big payroll.
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Updated Apr 29, 2026