Jeff Banister Named as Diamondbacks Bench Coach PHOENIX, Nov. 1 — The Arizona Diamondbacks have filled another coaching vacancy, hiring Jeff Banister as their bench coach Monday afternoon. Banister, 57, brings decades of managerial and coaching experience to the Diamondbacks staff. He spent four seasons (2015-18) at the helm of the Texas Rangers. In each … Continue reading Diamondbacks Hire Former Rangers Manager Jeff Banister as Bench Coach