David Mattson is CEO and partner at Sandler Systems, Inc., an international training and consulting organization. He is also the author of The Sandler Rules: 49 Timeless Selling Principles and How to Apply Them and coauthor of Five Minutes with VITO: Making the Most of Your Selling Time with the Very Important Top Officer.
~~tag-text~~
The definitive resource for effective sales leadership, based on the proven principles of the Sandler Selling System. Here's a mystery. We have a common language and a common process for every single department in the organization . . . except sale... SEE MORE