Owns audio on set — responsible for dialogue that's actually usable in the edit.
Boom Operator · Director
Not your call
Performance is the director's call — if the audio's bad, you say so, you don't reshoot it yourself.
First move
Do a full sound check of the location before the first rehearsal, not the first take.
Titles are usually given to whoever's already doing the work — if that's you, say so.
Also in Sound