Better the devil you know than the devil you don't.
(Managing Projects blog 4 of 8)
We normally say, “The devil lies in the detail” and that is the exact same impact if you are not being specific in what you do in project management or even more precisely when you are managing projects.
You don’t know what you don’t know is very true, especially if you are dealing with complex issues and relationships in project management. So, when managing a project you will rely heavily on factual and exact verified information, otherwise you would be doomed to failure. We suggest very specific process questions you could ask that would help you to derive explicit statements from staff, vendors and customers.