You have an opening paragraph, describing what's going to happen in the chapter that this case bps disaster will be analyzed by looking at the four frames of (Structure), (Human Resources), (Politics) and (Culture or symbolic). And it will identify within each one of those four aspects specific situations. My professor told us that (You are actually identify what you believe the problems are using the four frames, what are the problems in the structure of BP, what were the problems with human resources, what are the problems politically at BP, and what were the problems with its culture at the time of the disaster. )