Diamondbacks Officially Hire Brent Strom as Pitching Coach PHOENIX, Nov. 18 — The Arizona Diamondbacks, days after the first reports surfaced, officially announced the hiring of Brent Strom as their new pitching coach Thursday afternoon. This comes shortly after Strom ended an eight-season stint as the pitching coach of the Houston Astros (2014-21). Strom, 73, … Continue reading Diamondbacks Introduce Brent Strom as Pitching Coach