When you have creative people, you have to let them do their thing. You have to resist the urge to be too efficient, you have to resist the urge to work to a certain budget and schedule - other than the fact that things have to end. It's harder work to produce this way but my philosophy is that you have to let it be creatively chaotic and let it find its place. When creative people are on to something, you know it and you have to allow it to happen. You can't set a schedule for that.