Without the specifics, here are a few possible drivers for that comment:
- Framework wasn’t tailored: you identified the right business drivers (e.g., low customer retention, increasing competitive insensitivity) but dig into the specifics of the client/industry or situation at hand in enough detail
- Didn’t identify enough options: when brainstorming, you missed some big opportunities or explanations to a problem
- Didn’t make it a conversation: your transitions (prompt, questions, framework, analysis, rec) were robotic and you didn’t engage the interviewer in the problem solving
I’d be happy to work with you to address this feedback. In my experience, candidates go through phases: 1) you have no clue what you’re doing; 2) you learn the “formula” and sound robotic; 3) you realize the formula doesn’t always work and freak out; 4) you master the case interview process and feel at ease in any situation. It sounds like you’re in step 2 — let’s get your to 4, so you can secure that offer!