That establishes several specifics. First, as the leader and focus of this activity, you will organize and manage the work of different people to achieve a single end.
Then, there will have to be communication in various forms through multiple channels. And your responsibility will have to be subdivided. You retain it overall, but share it and delegate it in the process.
You must satisfy the expectations of those you answer to, and you must have productive response from those who answer to you.
All that being so, you are the director of multiple layers of teamwork. All of your constituencies share a fundamental definition, but each of them is distinctly different in how it works. You are in the catbird seat at every stage in every function.
None of this is easy, which is why we see so little really effective teamwork in these situations. When it’s a true project, all the challenges are hyped by some level of complexity, risk and uncertainty – but the essentials exist in any group effort to do something.