The Mariners followed up with Luis Castillo and Bryce Miller after both expressed frustration, but the team plans to stick with its piggyback plan for at least one more turn through the rotation.
WEST SACRAMENTO, Calif. In two turns through the Mariners piggyback pitching plan, Luis Castillo and Bryce Miller have combined for a 2.12 ERA, allowing four runs on 10 hits, with five walks and 21 s… [+4381 chars]