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•  Advertising Age reports that Ciara Anfield, most recently the vice president of marketing at Sam's Club and before that an executive for more than a dozen years at Walmart, has been named Sam's Club's senior VP and chief membership and marketing officer.  Anfield succeeds Tony Rogers, who is leaving the company.

•  Costco announced that Ron Vachris, the company's EVP and chief operating officer of merchandising, has been promoted to the role of president and COO.  The move, reports suggest, position Vachris as the potential successor to CEO Craig Jelinek, who until now also held the president's role.