Deloitte Business Technology Analyst interview questions

The case study was very unexpected due to my background. Case study - a CFO has newly joined the company due to a acquisition and the employees do not like her, and she has a new implementation of a data management system that will help them save time as they currently have 5 different systems that allow them to generate reports over a period of 2 months. How should she go about the Content Risk Analysis. I do not have any business background and I would have appreciated if Deloitte took the time to understand my background before interviewing me. As it seemed as a big waste of time and energy. Also the behavioral interview was very unexpected, as the interviewer made so many assumptions, and was so confused, and the worst thing was that he kept telling me that he is confused. Well duh, you wouldn't be confused if you read my resume before interviewing me.

How would you go about researching for a presentation to a CFO regarding a new ERP system they have hired us to investigate.