The Mariners' future at shortstop and third base is a topic of interest, with J.P. Crawford's versatility and potential reunion with the team under the microscope. Crawford, a well-liked player with a positive clubhouse reputation, has volunteered to play third base to accommodate Colt Emerson, the shortstop of the future. This move adds value to Crawford's free agency status and may increase his chances of returning to the Mariners. The experiment is worth exploring, given Crawford's poor defensive performance at shortstop since 2025 and his limited experience at third base. His range and arm strength are below average, and his lateral moves towards first base are not optimal. However, playing third base could optimize his defense as he ages. Crawford's offensive production remains strong, with a 114 wRC+ in 180 plate appearances this year, despite a low batting average. The Mariners' rotation is in a crunch, with several pitchers performing well, including Logan Gilbert, George Kirby, Bryan Woo, and Bryce Miller. The team's best path forward, according to the Seattle Times, is to have Miller in the rotation and Luis Castillo in the bullpen full-time. Castillo, a reliable starter, has struggled as a reliever in 2026, with a 6.34 ERA and multiple blow-ups. However, his four-seamer pitch still gets significant horizontal break, and he could benefit from using it more often as a reliever. This strategy could provide flexibility if a starter is injured, allowing Castillo to revert to his old pitch mix and slot back into the rotation. The Mariners' decision-making regarding Crawford and Castillo's roles will be crucial in shaping the team's future and performance.
