Story byMax EllingsenWed, January 21, 2026 at 5:50 PM UTC·5 min readThe Mariners announced their minor league coaching staffs for the upcoming season this week. While these aren’t names the average fan will be able to rattle off, each one of these people plays a crucial role in the development of Mariners minor-leaguers, from the high-minors managers who get to tell a prospect he’s making it to the Show all the way to a mental skills coach at the Peoria complex helping a Latin teenager adjust to living in the US for the first time. This year’s group of individuals features many returning faces, some in new roles, and some exciting new hires—some that will be familiar if you’ve followed the Mariners minor leagues for a long time. Tacoma Rainiers (Triple-A)The Rainiers return John Russell for his fourth year as manager.
