It’s important that people in business understand and use the term “subcontracting” correctly.
When you hire someone to help you in your business, that is not subcontracting. That is “contracting.” You are contracting someone to support you.
Subcontracting is when you outsource your client work (the work your client hired you to do as their contractor) to another business (i.e., an outside, third party). You are “subbing” that work. Hence the term SUB-contracting.