After bringing in a new front office regime late last season, including a new director of player development in Andy McKay, the Mariners, as a system, took a step in the right direction in 2016.
As a whole, the Mariners' stateside teams led organized baseball with a cumulative .572 winning percentage, and two of those teams, the Rookie-level AZL Mariners and Double-A Jackson, won their league's titles. In fact, all Seattle's qualified for the postseason.
In the wake of their system-wide success, the Mariners have decided not to field a team in the fall instructional league in Arizona this year and will instead host a series of mini-camps throughout the offseason.