BOO Argument

[mcrowder]

After an umpiring meeting last night 3 of us who know our rules pretty well were quizzing each other, using scenarios that had happened in our past. We came across 2 scenarios where we could not agree on the proper enforcement, even after looking in the book. Here's the first one:

B3 is due to bat, but B4 bats instead, and hits a double.

B3 then bats, hitting a single, B4 moves to third base (too bad she didn't score, this would be easy).

Defensive coach does and says nothing.

OFFENSIVE coach, realizing his error, calls time and approaches the PU, quietly explaining the error and asking what to do.

What do you tell him?