please answer in two paragraphs. Thanks

5. Imagine that a pet supply store is establishing a new performance management system to help employees provide better customer service. Management needs to decide who should participate in measuring the performance of each of the store's salespeople. From what sources should the store gather information? Why? (LO 10-5) 6. Would the same sources be appropriate if the store in Question 5 used the performance appraisals to support decisions about which employees to promote? Explain. (LO 10-6)