Caldwell is the CEO of a retail business. After he studies the OB course, he wants to use an integrative model of OB. Which of the following actions would he take to implement the integrative model of OB? Group of answer choices Have employees work alone but occasionally report to a manager. Divide his employees into four work teams, each headed by a different leader. Use a work team for the managers, but have the other employees work individually. Use one work team, but do not appoint a specified leader