“Running a daring, high-quality theater in this town is nearly impossible. Whether you head the tiny Vineyard Theatre on East 15th Street (120 seats and an annual budget of $2 million) or the elephantine Roundabout Theatre Company (two Broadway spaces, an Off Broadway house, an Off-Off studio, 44,000 subscribers and $43 million to burn), you’ve got divided loyalties. Are the artists happy? Are the funders happy? Is the board happy?” So who can save the city’s stages?