“It has been an unusual year for the Atlantic. As medium-size nonprofit theaters go, it has been unusually successful. Two of its shows — half of its season — were picked up for commercial runs on Broadway. The company has a paid membership of 3,500. How the Atlantic found itself there is a tale of nimble negotiating and real estate jujitsu that could almost be the subject of a David Mamet play, albeit one in which the little guys come off pretty well in the end.”