Any engagement’s usefulness to an organization depends on the degree to which members reach accord on the nature of problems and opportunities and on appropriate corrective actions. Otherwise, the diagnosis won’t be accepted, recommendations won’t be implemented, and valid data may be withheld. To provide sound and convincing recommendations, a consultant must be persuasive and have finely tuned analytic skills. But more important is the ability to design and conduct a process for (1) building an agreement about what steps are necessary and (2) establishing the momentum to see these steps through. An observation by one consultant summarizes this well.