FanGraphs' playoff report card highlights where Mariners' Dan Wilson must improve

American League Championship Series - Seattle Mariners v Toronto Blue Jays - Game Seven | Mark Blinch/GettyImagesDan Wilson took up the mantle as manager of the Mariners in tumultuous times. After the team's second-half slump in 2024, Scott Servais was unceremoniously fired after nine years. Initially, the appointment of Wilson seemed more like fan service than an actual move to improve the team, but after a 21-13 record to finish the season, it turned out that he might actually have what it takes to be a solid manager. He received high praise from players and reporters alike and seemed like the right man to lead the Mariners in 2025.

Wilson's first full season was, in many ways, a rousing…