Why hire talented people and not fully utilize them?

When you start a business, you don't need to know how to do absolutely everything. For example, if you are opening an event planning company, you don't freak out because you don't know graphic design. You just need to know what looks good and then hire a talented specialist to design all of your invitations. Your role as the boss is to oversee a bunch of specialists who are the best in their niche.