Authorized Sandler Training Licensee & Certified Sandler Trainer who works with successful business owners and owners who's business aren't living up to their expectations. What the two different types of businesses have in common is a frustration with their sales and/or management teams. Driskill Business Development Group, Inc. (DBDG) works to identify the source and cause of the frustrations, develop solutions to resolve the issues and implement training programs to provide long-term improvements in the behaviors, attitudes and techniques for the sales and management teams.