Shared memory does not mean shared visibility
A connected backend can hold the full player record while each role receives a filtered workspace. That keeps the team aligned without exposing private notes or creating analysis overload.
Design around the decision each role owns
The player needs a focus and selected feedback. The tennis coach needs priorities and actions. The specialist needs load, recovery, movement, and schedule. The head coach needs the integrated view.
Scale the proven workflow
Role-based access is what lets a one-player pilot grow into an academy system. Add players, coaches, and reusable workflows only after the first team has shown which inputs and outputs genuinely improve performance.