A sales manager job description usually includes building and leading a team of salespeople to help drive revenue. Sales managers must motivate their teams to generate leads, build client relationships, set targets to hit or exceed revenue forecasts, and ultimately meet customer needs. A Sales Manager , or Sales Department Manager, is responsible for overseeing daily operations in the sales department. Their duties include hiring and training sales staff, relaying information from upper management to department staff about sales quotas and generating leads to divide among Sales Representatives.