The reason I ask is that in NYS, umpires are specifically trained to ask for help on a pulled foot before making the safe/out call. We encourage umpires to get the call right immediately, not after a coach goes ballistic and the umpires conference with each other. I understand that other groups choose to handle this differently, but in NYS, we prefer to get the call right initially.
So what happens when the PU can't provide help because s/he is taking care of other responsibilities on the runners s/he is responsible for?