You can't delegate understanding. I don't mean you shouldn't, you can't. If you don't understand what's happening, you have no way to know if the system is wor

You can't delegate understanding. I don't mean you shouldn't, you can't. If you don't understand what's happening, you have no way to know if the system is working as intended. And understanding (and deciding) exactly how the system works is the really hard part for any sufficiently complex project.