The core can carry weight, but the 2026 blueprint needs more than vibes and depth pieces.
If 2025 taught the Seattle Mariners anything, it’s that getting to October can make a roster look sturdier than it really is. The Mariners’ late-season run proved the core can carry weight, but it also highlighted thin spots. To turn momentum into staying power in 2026, Seattle needs more impact bats and a higher everyday floor.