A sales manager for a telecommunications company is trying to calculate the optimal number of salespeople. The company has 500 A-level accounts and 3,000 B-level accounts. A-level accounts require 20 calls per year; B-level accounts require 10 calls per year. The average salesperson can make 1,000 calls per year. What is the workload? How many salespeople should the sales manager hire? What other factors should he or she consider?