The important point to understand in this section (3-A-1 also in the Bridge Exam) is that as a supply management professional you represent the profession in your organization. The more you are able to create,project and expand the role of supply management- the more will be the respect for the profession in your organization.
A first step towards this is to have a Supply Management Department mission that is closely aligned to the mission of the organization. A good example is from South West Airlines.
This section also explores the need for supply managers to lead by being pro-active. The pro-activeness involves being alert to the needs and requirements of both your "internal" customers and also being aware of trends with "external" customers of your organization. Simply waiting for requirements is not enough - you need to reach out to internal users. If you do, you will be well regarded and will avoid situations where users by-pass supply management and simply buy on their own. The latter is called "backdoor buying".