What does PU do?

[DTQ_Blue]

Situation, 2 outs R1 and R2. Uncaught third strike. Batter heads toward first, other runners are moving. BU in C forgets that there are 2 outs and thinks both runners are trying to steal. He expects F2 to pick up ball and throw to 3rd so he starts running toward third looking directly there. F2 picks up the ball, throws to first, I'm watching the play at first. F3 gloves the ball with foot off the bag and then gets foot on bag just in time (in my opinion to make the putout). I say nothing waiting for BU to make the call. I hear nothing, then look to see he is just turning around from facing third. There is a moment of silence. He realizes that he has to call something and calls "safe." Now this is senior LL where coaches don't know what umpire is responsible for coverage. Mgr. of the defense is pissed that the safe call was made, and blurts out loud enough for everyone there to hear "Neither one was watching the play." Of course the mgr. never went to BU and asked him to get some help from me.