As the top of the inning is about to begin, the pitcher tells the plate umpire that he does not need any warm-up pitches. The first pitch to the lead-off batter (B1) is singled into the outfield. However, B1 tries to stretch the single into a double and is thrown out at second base. 

 

At the end of the play, the offensive coach argues that the umpire started the inning before he had a chance to get either of his base coaches into the coach's box.

 

What do the umpires do now?