3. Consider a fast-food drive thru operation. The current process has a mean time between customers of 30 seconds with a standard deviation of 10 seconds. To achieve the customer expectation of 20 seconds with a standard deviation of 7 seconds several changes must be made. Robotic drink fillers have been installed reducing the number of required personnel. In addition, as distance between stations is critical to meet the customer expectation, the working environment is substantially more cramped. Discuss how you as a manager would apply the mechanism of "Building Buy-In" for successful change