D.E.I. Sales Training Systems specializes in instructor-led workshops that teach sales professionals how to gain more appointments, sell more efficiently, and manage more effectively. They have helped a wide variety of businesses achieve record-breaking growth. DEI has a 30 year track record working with sales teams to help them develop new business with its proven sales system and selling methodology. The system changes the way people think about sales and in particular, sales pipeline management, and transforms daily work routines and sales behaviors. And it provides the manager with a complete sales management process that energizes the whole team.