So simple and so true. It's insane how many companies hire and build teams around visions their teams don't understand well at all. That's certainly where most killer companies win. Their force doesn't need to be extremely proficient and efficient to move the needle because everyone understands what moving the needle means and has a clear path to take small decisions without looking at a spec or consulting another party.
The best managers are certainly the ones that make an effort to enable learning around what is being build and why. That allows people to build agency and criteria to make decisions that are in the best interest of the company.