Earlier quoted context omitted.
That depends entirely on how you freelance. I join teams. My current project, for a major Dutch bank, started with me developing the prototype, and later interviewing a bunch of people (internal and external) to join the team that I'm still part of. At other projects, I was hired to add some external expertise to an existing team. But it's mostly long projects in teams. But before I ended up in these sort of big proj…
From the description it sounds more like you are contracting, not freelancing? A contractor is typically on site, or sells his time (and presence), meaning he has one client at a time. A freelancer to me works on projects, and will take on multiple clients at the same time.
You get a certain kind of freedom with freelancing but it does get tiring to chase people down for your money.