New York-based fashion darling Erin Fetherston is stepping up her four-year-old womenswear business. Following Nathan Levy’s appointment as Managing Director last summer, Amy Hochfelder will serve as Director of Sales conducting market in New York as of next month and in Paris in March. Hana Kim will oversee PR and Marketing in conjunction with agency of record Bismarck Phillips, while Chris West of CS West International has been retained as Business Development Advisor. Fetherston, a finalist for the CFDA/Vogue Fashion Fund this year, is best known for her pretty brand of American sportswear.