With James Paxton, Felix Hernandez, Mike Leake and Marco Gonzales, the Mariners may feel comfortable with the rotation they have. Other fill-in guys on the roster include Wade LeBlanc, Roenis Elias, Ariel Miranda and Hisashi Iwakuma. Mariners GM Jerry Dipoto may opt to shorten the game a bit, and beef up the bullpen.
Some relievers that fit the bill could include names such as Brand Hand, Jeurys Familia, Raisel Iglesias and Zach Britton. I believe that Hand, Familia, and Iglesias would be too expensive for the Mariners to enter trade auctions with other playoff teams.