In a new post to the New England Journal of Medicine’s Catalyst blog (March 1, 2017), Marit Tanke, M.D., a 2016–17 Harkness Fellow from the Netherlands, and Press Ganey’s Thomas Lee, M.D., offer lessons from the Dutch on collaborating to solve complex problems—like preventing water from overtaking their low-lying country. Tanke and Lee show how the Dutch have drawn on social capital to design innovative solutions to health care conundrums.