New York Times architecture critic Herbert Muschamp has been one of the loudest voices in the debate over what should fill the huge space currently known as Ground Zero. But now, some observers are charging Muschamp with promoting the designs of architects to whom he has close ties. “Critics love to provoke, of course, but with the Ground Zero discussion down to a pair of finalists chosen by the Lower Manhattan Development Corporation, another question is being asked: Is Mr. Muschamp—long a lightning rod for criticism—getting too cozy with his advocacy? Some within the architectural community think so.”