Sabine manages a team of emergency medical technicians (EMTs). Because of the nature of their work, Sabine cannot provide a clear expectation on the exact type of work they will perform on a daily basis. Refer to Scenario 14.4. After each call, Sabine meets with her team to debrief on how things went. First, they look at the team's response time and whether they were able to assemble and leave for the call within five minutes of dispatch. Second, they rate the condition of the patient when they arrived on scene and then again when the patient was delivered to the hospital. Which part of the controlling function is Sabine performing? Measuring actual performance Taking corrective action Measuring expected performance Establishing clear performance standards