Nobody in this world can do EVERYTHING, but there are specialist in everything among us. Just like free-trade theory, if specialist engage in work trade, both parties benefit.
This is why it’s important to understand the things you are reasonably capable of doing, and things you aren’t. Then you can harness other people’s specialties.
This is a critical step. If you are under the impression that you’re the specialist in everything, then you’ll come to the conclusion that all work, in order to be completely efficiency, must be undergone by you. This is simply not scalable.
Sure, perhaps in a single person’s man-hours, it might be more efficient, but it will ultimately result in the project taking much longer to deliver than necessary.
None of us is perfect, but it’s the concept of working together to achieve a greater goal that’s been at the core of civilizations’ success and prosperity. Learn to lean and learn to lead.