Seattle's Roster Overhaul Looms After Disappointing Campaign

The Seattle Mariners' 2026 season fell far short of expectations despite entering with a talented rotation and improving lineup, finishing with just 76 wins and missing the AL West. Key players, particularly catcher Cal Raleigh who had dominated in 2025, failed to replicate their previous success, leading to widespread underperformance across the roster. Manager Dan Wilson was fired before season's end as the franchise that came closest to a pennant last year collapsed into mediocrity.

The Mariners entered 2026 as legitimate contenders after narrowly missing a World Series appearance the previous year, making their collapse to 76 wins particularly jarring. The team's pitching staff retained its quality and the lineup was expected to continue improving, yet nearly every core contributor faltered simultaneously. This widespread slump across multiple roster tiers prompted front office changes, including the dismissal of manager Dan Wilson before the season concluded, signaling the organization's shift toward a broader rebuild.

Cal Raleigh's dramatic decline exemplifies the roster's broader problems. After his historic 2025 campaign—highlighted by 60 home runs as a switch-hitting catcher and a near-MVP finish—Raleigh's 2026 performance inverted across both offensive and defensive metrics. His below-average offensive production combined with career-low defensive efficiency created uncertainty about whether his 2025 season represented his ceiling or merely an anomaly, complicating the franchise's long-term planning.