A surefire way to shoot yourself in the foot when you're leading a large-scale change effort is to ignore what's on the minds of your employees. In research we conducted for our recently published book, Beyond Performance 2.0 (John Wiley & Sons, July 2019), we found that executives at exactly zero companies that disregarded an analysis of employee mind-sets during a change program rated the transformation as "extremely successful." Conversely, executives at companies that took the time and trouble to address mind-sets were four times more likely than those that didn't to rate their change programs as at least "successful." Executives at companies that took the time and trouble to address mind-sets were four times more likely than those that didn't to rate their change programs as at least "successful." Those numbers reflect the power of mind-set shifts. In human systems, they help to achieve the same effect as the transformation of a caterpillar into a butterfly or a tadpole into a frog: when employees become open to new ways of looking at what's possible for them and their organization, they can never return to a state of not having that broader perspective, just as butterflies and frogs can't revert to their previous physical forms.