Depending on the topic that your assessment task will target, you should focus on including relevant information that would increase the usefulness of the paper that will contain this information. In such a case, data from the case study (if applicable) would be the main element to be included. Such data includes any figures (for instance, percentages) describing a particular aspect of the case study. Subsequently, you can combine your knowledge of the content and the overall case study with the specific data that you choose to include in the paper.
I believe that Pethmin's suggestion is a valid one. Their suggestion is essentially to formulate the information in a way that enables you to establish particular patterns that would not require including theory from the case study, but would, despite this, allow you to recall the relevant theory that the data/information is linked to. For example, consider corporate social responsibility from the Operations topic, specifically environmental sustainability. If the business that the case study discusses is said to have engaged in an activity that contributes to the environment, and this statement is supported by a particular figure/percentage, you can include that value in your paper and write a keyword next to it, such as "environmental contributions", which would allow you to remember the relevance of that specific figure to the case study and by extension, the topic/content being assessed.
I hope this helps!