MINNEAPOLIS — Supervalu on Monday named Sam Duncan president and CEO. In this role he succeeds Wayne Sales, who has served as the company’s president and CEO since July 2012. The succession was first reported last month, when Supervalu announced its agreement with AB Acquisition to sell five of its retail banners as well as enter into an agreement with Symphony Investors to conduct a tender offer for up to 30% of Supervalu's outstanding common stock.
