from training.npr.org: https://training.npr.org/2015/10/08/before-the-first-question-how-to-prepare-for-an-audio-interview/
You have characters. Check. You have a sense of what you want to record for ambient sound and active tape (the close-up sound of people doing things). Check. You’ve researched the topic and the people in the story. And, you’ve got a rough outline of how you think the story might be told. Check. Check.