David H MattsonDavid H. Mattson is the CEO and President of Sandler Training. He is also a bestselling author, keynote speaker, sales and management thought leader, and global provider for sales training seminars around the world. Mattson first met the famous funder of Sandler Training, David H. Sandler, in 1986, went to work for him in 1988, and was eventually chosen to lead the company. Brian W. Sullivan is Vice President of Sandler Enterprise Selling at Sandler Training. He has extensive enterprise sales, sales management and P&L management experience including sales training and sales process development from his years with The Cap Gemini Group and Xerox Corp. and through his work as an adjunct professor at Loyola University Maryland. Read More Read Less