For startup founders, the time is your biggest constraint. You are running a company, seeking capital, guiding product, hiring staff, and leading marketing and sales. If four out of five deals turn out to be duds and each deal take ten hours, you have lost a week of time. This is why rigorously qualifying your deals is so vitally important. You need to focus your time on finding the right customers. In part 7 of the Startup Founder Sales series, AWS Startup Advocate Mark Birch tells us how.