Hard Interview Questions

The majority and the most obvious part of preparation is, of course, the substantive preparation for your case interview. However, you also need to present what you have learned in a way that gives your interviewer an impression of your personality and character. This means that you must appear confident and communicate clearly and precisely. The best preparation is useless if you come across as closed-off and insecure. As a consultant, you must always appear trustworthy and confident when interacting with clients to be taken seriously and to enable you and your team to work in a solution-oriented manner. This is already tested in the case interview – albeit indirectly ;) Your Body Language in the Case Interview Can Be DecisiveBody language will be a great help throughout your career to communicate clearly and build relationships. Therefore, it's time to start dealing with this topic now.A confident demeanor is advantageous in almost any profession, if not crucial. This includes a firm handshake, upright posture, and eye contact. Self-confidence signals to the interviewer that you are capable of making clear and well-thought-out decisions even under pressure.Your body language should convey openness and engagement. Avoid sitting with crossed arms and nervous gestures like drumming your fingers or playing with a pen. An open and engaged posture supports your verbal communication and shows that you are attentive and interested.💡 Prep Tip: Sit up straight and rest your elbows on the table in front of you. This creates a connection that gives you a sense of security and prevents you from making nervous movements. Clear and Precise Communication is KeyStanding out among other top talents can be challenging. The way you communicate can be a tool to achieve this. The best part is that you don't have to be "better" than the others – you will be memorable because the conversation with you was pleasant, for various reasons:Structured Problem Solving: Start by breaking down the problem and articulating your thoughts clearly and systematically. Use frameworks like the MECE principle (Mutually Exclusive, Collectively Exhaustive) to present your analysis logically and comprehensibly. Divide complex problems into manageable parts and explain your approach step by step. The trick is: think aloud.Active Listening: Show that you are actively listening to the interviewer and considering hints and questions. Ask follow-up questions if necessary to ensure you fully understand the problem. This demonstrates that you can work precisely and attentively, focusing on essential details.Clear Communication: Avoid jargon and complex expressions unless you are 100% confident in them. Your solutions should be clearly and understandably formulated. This is particularly important as consultants often have to communicate with clients from various fields. Respond to Your Interviewer with Interactive CommunicationView the interview as a dialogue, not a monologue. Interact with the interviewers by articulating your thought processes aloud and including everyone in your considerations. This can be done by asking questions like "Would it be helpful if I elaborate on this aspect?" or "What additional information might we need?"Additionally, be ready to reconsider your approaches and assumptions when new information is provided by the interviewer. This flexibility shows your ability to think dynamically and quickly adapt to changing situations.At the end of the interview, you should clearly summarize your findings and recommendations. Concisely wrap up the main points of your analysis and present your final recommendation. This shows that you can consolidate your thoughts and get to the point.Always remember: your recommendations should be realistic and feasible. Convince your interviewer that your solution is not only theoretically sound but also practically applicable. A well-founded argumentation and consideration of potential challenges are crucial here.A successful case interview in consulting requires more than just analytical skills. A convincing demeanor and clear, structured communication are equally important. Through careful preparation, confident appearance, and interactive communication, you can leave a positive impression and significantly improve your chances of a successful career in consulting. 

The model of the "Five Dysfunctions of a Team" comes from the business novel of the same name by Patrick Lencioni. The author, an experienced consultant in team development, tells the story of a tech company that was once successful – until the team began to fall apart. Lencioni shows how certain patterns can hinder a team – leading to a real crisis.Especially in study projects, group work, or later in your career (especially in consulting), it’s important to recognize these dysfunctions – and actively address them. Teamwork is more than task division. It thrives on trust, clarity, and real collaboration.Here are the five main dysfunctions – and how to avoid them. The Five Dysfunctions of a TeamLack of Trust: Without trust, little happens in a team. If you hide weaknesses or uncertainties instead of addressing them openly, no real collaboration occurs. Teams that allow vulnerability perform better, learn faster, and use everyone’s strengths. Trust is the foundation – and without it, all problems follow.Fear of Conflict: It might sound strange, but good teams argue constructively. Avoiding conflict often leaves things unsaid, causing tension and frustration. Open and respectful discussions lead to the best ideas.Lack of Commitment: When decisions aren’t made clearly or collectively, commitment suffers. Why should you commit to a goal you didn’t agree on? Open discussions and clear commitments ensure everyone is truly on board.Avoidance of Accountability: Accountability works only when clearly assigned. When no one knows who’s responsible for what, the “someone else will do it” problem arises. Set clear responsibilities and hold each other accountable.Inattention to Results: What matters most is what you achieve together. If personal egos or career goals take over, focus is lost. This is crucial in consulting teams, where results are measurable. Keeping the bigger picture in mind makes all the difference. Actively Addressing the DysfunctionsBuild Trust: Openness, honesty, and vulnerability lay the foundation for trust.Promote Constructive Conflict: Respect different viewpoints and encourage open communication to turn tensions into productive debates.Make Clear Decisions and Commit to Them: Transparent decisions and commitment ensure accountability.Take Responsibility and Demand Accountability: Ensure everyone takes responsibility and holds each other accountable.Prioritize Team Goals: Put the team’s goals first and make sure personal interests don’t hinder collaboration. What Does This Mean for You as a (Future) Consultant?In consulting, success rarely happens alone. Projects are complex, require teamwork, and are often under time pressure. Without trust, suppressed conflicts, or unclear accountability, projects can fail.Lencioni’s model helps you spot these patterns early – and take action. Openness, accountability, respect, and shared goals are not just “nice to haves” but true success factors. Especially in consulting, where you work with many stakeholders.