4. Imagine you run hotel and customers are experiencing long wait times particularly during the busy March break rush (a time when all elementary and high school students get a week off from school and typically go on holiday with their parents). Identify steps in the current check-in process at your hotel. Then, identify bottlenecks in your hotel's check-in process. Recommend lean changes to create more efficiency in these bottlenecks. What KPIs should be used both before the implementation of the lean changes and after