What is a Run Prevention Coach?

Darren BushThe Oakland A’s announced their 2022 coaching staff last week, led by new manager Mark Kotsay, and it includes a some new faces as well as a few incumbent names moving to different roles.

Among the latter category, Darren Bush is switching from hitting coach to third base coach, and in addition to 3B duties he’s also taking the position of “run prevention coach.”

Right on! Quick question though. What’s a run prevention coach?

Let’s start by getting the obvious jokes out of the way. Bush was the hitting coach in 2021 when the A’s had a disappointing season at the plate, so he’s already proven himself capable of preventing runs! If the 3B coach is also the run prevention coach, does…