Directing is a more pragmatic experience, where you have to deal with the restrictions of time and money that force you to make certain decisions you don't have to make when you're writing.
“I hope that Americans will give careful and well-informed thought to root causes and historical realities, in which case I think they will question why a supposedly 'legitimate' state such as Israel has had to conduct decades of war against a subject refugee population without ever achieving its goa”