Father-Son Duo Leads the Philadelphia Phillies

On April 28, 2026, the Phillies promoted 65-year-old former player Don Mattingly to interim manager and kept his 38-year-old son Preston Mattingly as general manager in title only. The pairing is the first father-son manager-GM combination in MLB history. The move followed a 10-game losing streak that led to the dismissal of manager Rob Thomson.

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Don Mattingly’s post-playing résumé includes managing the Los Angeles Dodgers and Miami Marlins and serving as the Phillies’ bench coach. Preston Mattingly began as an advance scout for the San Diego Padres, later became the Phillies’ farm director, and was named general manager in 2024. When the club sought a new manager, president of baseball operations Dave Dombrowski first courted Alex Cora, who declined, then turned to Preston, who relayed the decision to his father. Dombrowski described the appointment as a “unique situation.”

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• Don Mattingly – Yankees star, ex-manager of the Dodgers and Marlins, now interim manager of the Phillies.

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• Preston Mattingly – Scout and farm director, GM since 2024, now functions as Dombrowski’s assistant on roster matters.

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• Dave Dombrowski – President of Baseball Operations, overseeing roster construction and the managerial appointment.

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Since Don’s promotion, the Phillies have gone 11-4, winning 11 of 15 games and ending the earlier skid. The turnaround is credited to both tactical adjustments on the field and roster moves overseen by Dombrowski and Preston.

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The Mattingly arrangement illustrates shifting front-office dynamics, where familial ties intersect with professional hierarchies. It offers a live case study of how legacy branding can coexist with modern decision-making, potentially influencing other clubs’ staffing models.

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Dave Dombrowski said the decision addressed performance concerns while he will continue to oversee roster construction. Don Mattingly called the arrangement “comfortable” and said he wants to contribute to the club’s “dream.” Preston Mattingly described working with his father as a “happy accident” that also lets him spend time with his granddaughter.

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No public criticism of the father-son setup appears in the available sources. Observers note its rarity but have not raised substantive objections.

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• “I know this is a unique situation. I don’t want to put you in a tough spot. So this is my decision, and it’s what we’re going to do.” — Dave Dombrowski, President of Baseball Operations, Phillies

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• “You’ve been in this game long enough,” — Don Mattingly, Interim Manager, Phillies

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• “Press, maybe this is why I’m supposed to be in Philadelphia,” — Don Mattingly, Interim Manager, Phillies

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• “So I’ve tried to kind of take that perspective of it.” — Preston Mattingly, General Manager, Phillies

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The Phillies will review Don Mattingly’s performance at the season’s midpoint to decide on a permanent managerial appointment. Preston Mattingly will continue shaping roster strategy under Dombrowski’s oversight as the club seeks to sustain its recent winning momentum.

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