Macy’s Inc. said Chief Operations Officer John Harper is leaving the company Aug. 1 and the position will be eliminated. With the elimination of the COO role, the retailer said Marc Mastronardi, chief stores officer, and Dennis Mullahy, chief supply chain officer, will report to Chairman and Chief Executive Jeff Gennette. New York-based Macy’s (NYSE: M), which also owns Bloomingdale’s and Bluemercury, made the announcement along with other changes to its senior leadership team.