Sparked by the publication of Leap of Reason by Mario Morino, this symposium convened a select group of twenty leaders from government, nonprofits, philanthropy, and business to discuss a challenge that has limited the collective impact of the social sector: the lack of encouragement and support in the nonprofit community for disciplined, data-driven management. The symposium explored barriers to and opportunities for making performance management more common in the social sector. Participants discussed possible solutions that would advance performance management, including the Outcome and Effective Practices Portal (now called PerformWell), an online resource for nonprofits seeking assistance with identifying indicators and tools to measure their outcomes.