If I were starting a content team from zero, I'd look for someone who could turn an idea into an edited piece. The first hire needs to be able to do the work.
A manager can organise people, but when there's hardly a team yet, you also need footage turned into something you can publish. I'd want a person who could investigate ideas, understand what's working and put a video together.
That gives a founder a fairly simple way to contribute. Record the useful part of what you know, then hand it to someone who can finish it. They can also bring you ideas to record, rather than wait for every instruction.
You still have a job in that arrangement. You know the customers and the business. Hiring someone doesn't give them all that context automatically, or make them responsible for inventing your experience.
As the work grows, you can separate the jobs. A dedicated editor can take on more of the routine editing, freeing the first person to spend more time on ideas and experiments. But at the beginning, I want someone who can get things moving without a separate production team.
There's another option if you already have a business and the money to support it: experienced agency help can let you learn faster. I've spent years learning content and still meet people with much deeper experience.
The choice depends on where you're starting. For a small internal team, I'd start with the person who can help make and finish the content. Give them a real piece of work to show you how they do it.
