This is an analytical and descriptive essay, but you need to think more about the analysis side. Find scholarly literature such as court cases or examples in which the literature studies police chiefs. Talk about the background of police chiefs and what their role is in the police department. Also talk about some of the most common issues police chiefs face and ways that these problems can be solved or avoided in the future. More importantly, what are police chiefs doing now that they did differently in the past and how can we improve on what they are doing now to have even better police chiefs in the future. (For the sources only use scholarly articles).