Sometimes you don’t know what you need to know, and if you go to an expert in a particular area, they’ll sell you what they have, and not necessarily what you need. For instance, you want to make an idea of yours into a product. If you go to a developer, he will sell you his development skills and services regardless if the idea is good or even has any demand for it. If you go to a marketing or business development consultant, he sells you his marketing services, regardless of the feasibility of building your product.
A free agent Meta-advisor. Someone who gets paid by you is not affiliated with anyone, and his sole job is to tell you who you need to listen or go to for what you need or want.