Which statement(s) below is FALSE? A. Organizational structure is more a strategy implementation than a strategy formulation issue. B. Organizational structure is important for gaining and sustaining competitive advantage. C. The percentage of large companies in the United States with a chief operating officer (COO) has declined almost every year for a decade, to about 60 percent today. D. A recommended guideline in developing an organizational structure is to avoid letting a single individual be both chairman of the board and CEO of a company. E. A recommended guideline in developing an organizational structure is to avoid having a particular person reporting to more than one person in the chain of command.