You are a small contractor who needs an Admin Assistant to answer your phone, so you hire someone for your contracting company office.
Calls come in, and your Admin Assistant has some free time between calls, so you want to make use of that famous Standby Time, and you ask them to do a little more. Being nice; you give a new title of Office Manager.
As the Office Manager; that person is in control of the bookkeeping, customer invoices, vendor payments and more. As the contractor, you are excited because you are handing off the responsibility for the day to day activities.
From your side; you have checked off the box called Office Manger DONE, phones DONE, bookkeeping DONE and material pickup and delivery person DONE. Everything is solved. Good now you can go back to work and start doing the work which is the part you are good at and like to do.
Are you expecting Too Much from your Office Manager?