The doctor is in. Jim Russell, the longtime radio producer who does business now as The Program Doctor, has just begun taking questions at Transom.org, the website for public radio producers. Like other Transom.org guests, Russell posted a conversation-starter, his 17-step guide to program development. (He had a hand in developing not only Marketplace, but also The World, Weekend America and more. Transom’s previous guest was Ben Shapiro, a TV-and-radio producer who discusses visual storytelling for radio folks.