The organizers of last week’s Theatre Communications Group national conference were excited, and understandably so. The annual gathering of representatives from America’s nonprofit theater industry, held here June 17-19, was a sell-out with 886 registrants—the largest such event in TCG’s history. That’s what happens when you bring coals to Newcastle: the list of attendees indicates that there were at least as many Chicago theaters represented as there were companies from everywhere else combined. And despite the assertion by at least one speaker that the economic condition of nonprofit theater is “unsustainable,” the mood was upbeat.