White, who has been a pitching coach in some capacity since 2003, spent the 2018 season as the Houston Astros’ bullpen coach. It was his first major league job, yet the pressure did not rattle him. Astros relievers had a major-league best 3.03 earned-run average, improving by more than a run from their 2017 ERA under White’s direction.
Source: latimes.com – Los Angeles Times