The discovery meeting brings you and the marketing professional together to talk about different marketing services offered. They will be looking to understand your business better _ in its current state and your future vision. The marketing consultant will also explain the variety of marketing services offered so you will be better able to understand the final marketing plan when it is delivered.
What was the outcome? As much as 90% businesses started by entrepreneurs and small business went busted or failed within a year. I experienced one of the many busts few years ago (with my cafe business) because i don't really have a proper and "the few solid sheets" called a marketing plan.