We all rely on our secretaries and our staff, like clinic nurses, and that is fine.
…but if you want to run a business, then you have to acknowledge that they are dispensable.
You need to rely on processes and put in systems that allow your people to deliver those processes.
You still need good people, but having processes means that you can analysis the issue when things go wrong, rather than blaming a person.
It also means that if that person leaves or goes off sick, gets pregnant or has a holiday, you are not left clueless as to how to manage a booking or process a payment.
Rely On Processes, Not People!