Zach Braff and David Greenspan, two very different actors, are busy writing for the stage this season. Braff (“Scrubs,” “Garden State”), tries his hand at playwriting with "All New People." Greenspan's latest play, Go Back to Where You Are, received its premiere at Playwrights Horizons in the spring. He plays the whole cast of characters in "The Patsy," a revival of a forgotten 1925 comedy by Barry Conners. New York Times critic Charles Isherwood joins Jeff Spurgeon to talk about the new productions.