What happened: Seattle was drawn to Jason Kanzler's intelligence, creativity and intensity throughout its managerial search, per Alden Gonzalez. Kanzler had been the Cubs' director of player development before the Mariners hired him as manager.

Why it matters: The Mariners believe Kanzler will help their young players develop in the major leagues, which they consider crucial to the club's success.

What to watch: Kanzler's coaching staff takes shape as the Mariners' offseason continues.