Apparel giant Liz Claiborne Inc on Tuesday announced the appointment of two new presidents for its Sigrid Olsen and Dana Buchman brands. The New York-based company named Susan Kellogg president of Dana Buchman and Becky Blair president of Sigrid Olsen. Kellogg was vice president and general manager of sales operations and marketing for Dana Buchman and vice president and general manager of sales and business planning for Sigrid Olsen, while Blair was vice president of sales for Karen Kane Inc.