Wal-Mart Stores said Friday that Claire Watts, executive vice president in charge of the discount chain's apparel merchandise, has resigned to "pursue other career interests." The move comes as the world's largest retailer continues to work to revive sales in the flagging division.

Wal-Mart said it named Dottie Mattison senior vice president overseeing women's apparel, jewelry, shoes and accessories, and apparel product development.