Read the case and follow the guidelines to write the paper. Your case brief should be you observations from the reading, and your recommendation of what you feel the company should do.
The case write-up should contain the identification of the main decision problem, alternatives with pros and cons, the chosen course of action and justification for the same. It usually helps to include supporting quantitative analysis where applicable. It is also helpful to use subheads and prioritize the more important considerations. Please limit the case brief to no more than 2-4 pages, 12 point font, 1.5 line spaced, 1 inch margins. If you choose to include appendices, they should only include supplementary data and analysis, not case data provided in the case itself.