Why should sales managers investigate reasons for turnover? Why is it important to compare a firm's turnover against industry turnover rates? 2)Why is the personal interview an important step in the sales selection process? What are the advantages and disadvantages of structured and semi Structured interviews? What can a sales manager learn about a candidate by conducting a stress test or a field observation? What are your experiences while being interviewed for a job or internship currently or in the past. Was the interview conducted in person or over the internet or telephone. What is your opinion of these different techniques