Another season of fashion shows kicks off in New York this week, starting with Proenza Schouler on Sept. 4. It comes as the industry finds itself in a transitional moment. Consumers are being choosier about where they spend. Labels that can make a convincing case for driving trends, or must-own pieces, continue to thrive, while those that leaned too heavily on logos or now-dated hero products are being abandoned. This dynamic has been…