Working with a team means having multiple minds. It’s an assembly line. The complete product requires working like an orchestra. That means everyone has to take responsibility and ownership.
A leader’s responsibility determines predictability and quality deliverable in a defined time. It comes with experience and deploying capable and efficient resources in the mission.
A leader defines multiple strategies for smoother deliverables. It can include enough buffer time for outsourcing. There is no one right fit.
Everything boils down to shipping quality products with the right resources and on time.
There is limited certainty and mostly uncertainty. That is where the planning and forecasting, and backup plans help.