The Mariners are moving toward a bold, youthful choice for their next manager.
According to Daniel Kramer of MLB.com, Seattle is expected to announce Jason Kanzler as its new skipper on Tuesday. If that happens, Kanzler, 36, will become the second-youngest manager in baseball, trailing only Blake Butera of the Washington Nationals. It would also be his first managerial job at any professional level.
Kanzler arrives with a background that leans heavily into player development. He previously worked as a minor league and major league hitting coordinator for the Houston Astros, and he spent the last three years as the director of player development for the Chicago Cubs.
There’s plenty to sort through with a hire like this, and the appeal is easy to see. If a team wants a young, fresh voice with upside, Kanzler fits that mold. He’s also known as a strong communicator, which is something the Mariners reportedly lacked in 2026.
His track record in Houston is another reason this move has traction. Kanzler was viewed as an important part of the growth and success of Jeremy Pena and Alex Bregman, which matters for a Mariners roster that includes Cal Raleigh, Julio Rodriguez and Josh Naylor.
He has also spent the last three years working in player development, so he comes in with a clear sense of how to help players improve. That kind of background can matter even more when a club has young talent expected to play major roles.
There’s also the front-office side of the equation. Kanzler speaks the language of the front office, and that could be useful in working with Jerry Dipoto and Justin Hollander. Bridging that gap between the dugout and the decision-makers is no small thing.
Still, the questions are obvious. This would be the Mariners’ third straight first-time manager hire, following Scott Servais and Dan Wilson. Buster Olney of ESPN was adamant that the team needed someone with experience, which is why he seemed to lean in favor of Joe Espada.
And then there’s the age factor. At 36, Kanzler is barely older than some of the players he’d be managing. Whether he can command the room and earn immediate buy-in is one of the biggest questions attached to this hire.
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