Julia Phillips, Oscar-winning producer on Taxi Driver, Close Encounters of the Third Kind, and The Sting, writes:

When a job comes up on the set that no one else has to do, according to job definition, the producer gets to do it. This comes up on a regular basis, usually because someone else didn’t do his job, didn’t do his job well, or didn’t think of the job in the first place.

page 519, “You’ll Never Eat Lunch in This Town Again“

An intriguing definition, from a movie Producer who routinely had to deal with the most intense crises imaginable.