How To Bring In 2, 3, Or Even 10 Times More Sales At Better Margins. Global Leadership, & Customer Service Expert, Dr. Sheila Bethel Murray sums the book up very well: "The COG system Phil Polson has developed and written about in his book 'Sales Drive' needs to be at the fingertips of every serious sales person. If you are an old pro he will remind you for what you may have forgotten. If you are new to sales this is THE tool you need to stay on track...