In those cases the view of the project illustrated in Figure 1-4 never occurred, because there was no objective evidence that any progress was being made on the completed project.
This lack of objective interpretation severely weakens the common practice in cases where the business system must quickly react to new or updated requirements.
In some cases an objective viewpoint (such as counseling) helps; other times, self-control and mutual accountability are all that's needed to turn the addictive relationship around.