The Seattle Mariners have spent big this winter, committing $92.5 million to bring back first baseman Josh Naylor. That single deal nearly equals the rest of the AL West's free-agent spending combined, signaling a shift for a franchise historically criticized for its frugality. After winning 90 games and their first division title in 24 years, the M's are clearly trying to maintain their edge.

Meanwhile, the reigning Houston Astros have been relatively quiet, focusing on rotation depth with additions like Tatsuya Imai. Their biggest challenge remains a logjam at designated hitter, with Isaac Paredes and Christian Walker both needing at-bats. A trade seems inevitable, and the Red Sox are a potential partner for Paredes.

With spring training a month away, the urgency is mounting. The Mariners must decide if one major splash is enough to fend off challengers. For Houston, resolving their infield/DH dilemma is critical before camp. The division's balance of power could hinge on these final offseason decisions.