A major debate today continues to be about determining the best organizational structure, including the structure for purchasing and integrated supply chain management. The ideal procurement organizational model future should have certain broad features. Some of these features include flatter hierarchies for faster decision making, free flow of ideas, joint ventures and alliances with key supply chain members and co-location of purchasing personnel. Provide three reasons for co-locating purchasing personnel with internal customers. Describe five advantages of co-locating purchasing personal with internal customers.