Gardner and Matviak argue that most organizations prescribe collaboration solutions without first diagnosing their actual collaboration state — the equivalent of a doctor writing prescriptions without running tests. The Collaboration Diagnostic is a structured assessment methodology that evaluates collaboration health at three levels: enterprise (organizational structures, incentives, and culture), team (composition, processes, and norms), and individual (skills, behaviors, and networks). The diagnostic reveals not just whether collaboration is happening but whether it is generating value, where the bottlenecks lie, and what specific interventions will produce the greatest improvement. Without this baseline, organizations waste resources on generic collaboration initiatives that feel good but change nothing.