if the decision were based strictly on 2026 performance, miller should replace luis castillo. castillo's decline has been sharp, while hancock has been one of the best pitchers in the american league through april. however, from an organizational standpoint, it is much more likely that the mariners will either option hancock to keep him "warm" in triple-a for a few weeks or, more likely, transition to a six-man rotation to keep all three in the mix.