According to the Harvard Business Review article "The Real Reason People Won't Change," to identify the "big assumption," guide an employee through this exercise: According to the Harvard Business Review article "The Real Reason People Won't Change," to identify the "big assumption," guide an employee through this exercise: Call them employee in to simulation an interview because when interviewing, people's senses are heightened. Create a sentence stem that inverts the competing commitment, then "fill in the blank." Ask the employee leading questions to get them on board with your mindset. Show the employee a series of designs and ask them what they see in each one