Managers evaluate and adjust each salesperson's estimate before combining them to form an overall forecast. All of the following are disadvantages of the sales force composite approach except
-it allows estimates to be prepared by products, customers, and territories so that a final, detailed forecast is readily available
-it allows salespeople to deliberately underestimate their forecasts so that they can reach their quotas more easily
-it yields forecasts based on present rather than future conditions because salespeople often lack the perspective for future planning
-it requires a considerable amount of sales force time that otherwise could be spent in the field attracting new customers