After one of the most deadly disasters in the history of space flight, Ellen Ochoa was a leader in NASA's recovery. She fixed the technical things that went wrong, but the most critical changes, she says, were human. Why she thinks it's important to make sure that naysayers always have a voice, and how to encourage employees to do something very difficult: disagree with the boss. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.