Sandi, shift supervisor at Johnson Meatpacking, has the highest performing team. One reason for this is how she controls her team's activities. First, she ensures that her subordinates are properly trained and properly equipped with the necessary protective equipment and work tools. Then, during the shift, she carefully monitors her workers' actions, taking notes and even measurements as needed. Finally, at the end of each work week, she analyzes her notes and measurement data, and she uses the results of her analysis to make needed production changes the following week. When Sandi is monitoring her workers' actions, she is exercising control. O external O forward O feedback concurrent O feedforward