A realistic job preview for a sales job would include information on how often the average salesperson's product is rejected by the prospect and how a salesperson has to learn not to take this rejection personally. it would also tell prospects about how much time can go into making a sale before the salesperson ever earns any commission. This helps people decide if they are a good option for a certain position. Informed decisions can reduce employee turnover, and people will be less likely to start their jobs and experience disappointment or confusion as a result of not knowing about key details of the work.