The reason why this important information Trevor gathers can better help Trevor understand his role and his manager's role is:
This refers to the hierarchical organization of the roles of people within an organization from the lowest to the highest.
Based on the fact that Trevor is meant to report to the IT manager and asks to see the organizational chart, then this would help Trevor discharge his duties in a way that he knows who to report to.
Read more about organizational structure here:
https://brainly.com/question/7322842