1) What is this podcast about?
2) What do you want to communicate about that subject?
3) Are you advocating, reporting, inspiring, or educating?
4) What's the title?
5) Is this subject exhaustible? If so, how many episodes do you want to make?
6) What is your guiding aesthetic and viewpoint?
7) What format will you use?
8) What will you accomplish with a pilot episode? and What structure does that suggest?
9) What goes in the pilot episode? and Do you have the skills and resources for all those things?
10) When will you start?