The beauty of the Seattle Mariners is that they need not rely solely on free agents such as first baseman Josh Naylor, whom they re-signed Monday to a five-year, $92.5 million deal, or second baseman Jorge Polanco, who remains on their wish list.

In the winter, The Athletic’s Keith Law rated the Mariners’ farm system as the best in baseball, including six of their position prospects among his top 100. Two of those players, second baseman Cole Young and catcher Harry Ford, reached the majors last season. Two more, infielder Colt Emerson and second baseman Michael Arroyo, could enter the picture in 2026, Emerson as soon as Opening Day.

Polanco, 32, still would fit nicely, serving mostly as a designated hitter to protect his health but also playing second on days the Mariners want to use Ca

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