It's the first time in at least five years that another club has hired away a coach from the Phillies' MLB staff.

Read - Phillies announce new assistant pitching coach after Brian Kaplan's departure - and more Phillies news and rumors at ...

The Arizona Diamondbacks announced Tuesday they have hired Brian Kaplan as their new pitching coach. Kaplan, 42, takes over ...

Read - Phillies lose key staff member as Diamondbacks hire former assistant as pitching coach - and more Phillies news and ...

When he was interviewing Brian Kaplan for the vacant pitching coach job ... He spent the previous three seasons as the ...

A day after losing assistant pitching coach Brian Kaplan to the Arizona Diamondbacks, the Phillies promoted 32-year-old Mark ...

The Phillies have promoted Mark Lowy to assistant pitching coach, the team announced Wednesday. Lowy, 32, replaces Brian ...

The Arizona Diamondbacks hired Brian Kaplan on Tuesday to be the team’s pitching coach. Kaplan has spent the past three ...

Kaplan, 42, specializes in the training and development of pitchers, with an emphasis on biomechanics, and had not coached in ...

Brian Kaplan, who spent the past three seasons with the Phillies, has been hired by the Diamondbacks to replace Brent Strom ...