If you hold out with your vision a little bit, it’s like a cake being put in the oven. The scene doesn’t work immediately, you have to bake it a little bit. It’s unfair, when you begin to create a shot, say, or a scene, that it’s going to immediately be like those beautiful scenes in the movies. It needs a little bit of time to mature. It’s like taking the cake out without letting it be in the oven for more than a minute. Like, oh no, it’s terrible. So you have to be patient, and then slowly everyone starts to see that the ideas are right, or make the corrections. You have to battle the lack of confidence by giving the scene the chance to solidify.

Francis Ford Coppola on directing and collaborating. It’s as true for directing products as it is for directing scenes. Source.