Many of the positions in film production are rather straightforward, but directing isn't one of them.
As an indie director, you wear many hats and divide your time between so many duties. You're part DP, producer, production manager, peace-maker, lunch decider, therapist, priest, and so much more. So, when people ask, "What exactly does a director do," I think the perfect response would be, "Everything." This doesn't inspire a whole lot of confidence for those who are just starting out -- maybe stepping foot on their first set thinking, "Okay, I'm the director -- what the f*** do I f***ing do?"