Which one of the following does not exemplify JIT used for competitive advantage? Ardoyne Builders has a scheduled preventive maintenance program. Acme Foods decides to decrease the number of its suppliers to just a few. Cajun Contractors has reduced the amount of space for inventory. Ajax, Inc. is proud to announce that incoming goods are delivered directly to the point of use. Cheramie Trucking trains workers to specialize and become very efficient in one job. Aggregate planning for service firms with high-volume tangible output is directed toward decreasing the demand rate during peak periods O planning for human resource requirements and managing demand yield management smoothing the production rate centralized purchasing