Wal-Mart Stores, Inc, has named Dave Ferguson the new president & CEO of the company's European operations. Ferguson, 55, who has spent the past 4 years overseeing Wal-Mart's successful operations in Canada, replaces Allan Leighton who has decided to leave the company.Leighton, 47, who will remain with Wal-Mart for the next few months to assist in the management transition, played an instrumental role in the development of ASDA and, most recently, in the successful integration of the ASDA and Wal-Mart business practices and cultures.