The lean startup methodology shifted the way many companies think about business by encouraging hypothesis-driven experimentation, iterative product releases, and validated learning. But can the same concepts be applied to social impact organizations? Author Ann Mei Chang thinks it is essential, and her decades of experience as a Silicon Valley executive and Chief Innovation Officer at USAID led her to write her new book on the subject, Lean Impact. In this episode of Hack the Process Ann Mei shares how she used data to evolve and scale USAID’s social programs, what role her network played in developing the ideas in her book, and why she decided to focus on fixing the systems of social giving instead of devoting her time to one particular cause.