The theory of constraints helps pick winning projects.
Every organization has constraints, which come in many forms.
When a production or service process has a resource constraint, the sequence of improvement projects should be identified using very specific rules. See if you can identify the system constraint in Figure 1. The answer is printed at the end of this column. For simplicity, assume there's no variation, waste or similar problems in the process. Look for Six Sigma projects that minimize waste of the constraints.