Full Breakdown
Phillies Fire Manager Rob Thomson, Appoint Don Mattingly as Interim
5/1/2026, 12:00:57 PM
Dismissal After a 9-19 Start
On Tuesday, Philadelphia president of baseball operations Dave Dombrowski terminated manager Rob Thomson after the Phillies posted a 9-19 record through 28 games, the franchise’s worst start since 2017 and the league’s lowest run differential at that point. The move made Thomson the second manager dismissed this season, following Boston’s Alex Cora.
Recent Performance and Thomson’s Record
Thomson, hired in June 2022, guided Philadelphia to four straight postseason berths, back-to-back NL East titles and a 2022 World Series appearance. He signed a contract extension through 2027 in December, yet his career record of 355-269 (.568 winning percentage) now sits alongside a 9-19 start that left the club ten games below .500.
Decision Process
During the first week of April, Dombrowski sent three scouts to Atlanta, held a staff meeting to assess the club’s performance, and explored hiring Alex Cora, recently released by Boston. Phone calls with Cora on April 20-21 ended with Cora declining to leave his family. The next day Dombrowski announced Thomson’s dismissal and promoted bench coach Don Mattingly to interim manager.
Official Statements
Dombrowski told reporters a new voice was needed and that the change was “the best for the club.” Thomson said he understood the decision, accepted responsibility for the team’s performance, and remained open to a non-managerial role. Mattingly accepted the interim assignment, emphasizing trust in the players and a desire to improve on-field results.
Criticism of Front Office
MLB insider Joel Sherman argued that the poor roster, not Thomson’s management, forced Dombrowski’s decision, asking whether legendary managers like Casey Stengel or Joe McCarthy could win with the same talent.
Conflicting Reports on Thomson’s Future Role
Some reports say Thomson has a standing offer to become a special assistant; other outlets claim no official offer has been made. The organization has not confirmed either scenario.
Verbatim Quotes
- “I don’t really think too much of it,” — Rob Thomson, manager
- “At this time, I felt we needed a new voice in there, a little different feeling in the clubhouse,” — Dave Dombrowski, president of baseball operations
- “found out the same time everyone else did.” — Bryce Harper, outfielder
- “Would Casey Stengel and Joe McCarthy as his bench coach win with (these rosters)?” — Joel Sherman, MLB insider
- “I trust players, I believe in players, I like players.” — Don Mattingly, interim manager
What’s Next
Mattingly will lead the Phillies while the front office evaluates long-term options, including a possible future offer to Alex Cora after the pending labor dispute. Dusty Wathan moves to bench coach, Anthony Contreras to third-base coach, and Kevin Long stays as hitting coach. FanGraphs projects a 33.9 % chance of a playoff berth, making the remainder of the season a critical test for the interim staff.
