In your reading of the latest World Development Report, the World Bank’s flagship annual report, pessimism over the future of huge cities in developing countries is overdone (“Lump Together and Like It,” November 8, 2008). Mexico City, Mumbai, São Paolo, and Shanghai each now have more than fifteen million inhabitants for good economic reasons. This year’s Nobel prize for economics went to Paul Krugman for his work on the location of economic activity in part because it helps understand the unprecedented concentration of people in cities. But the problem of management of mega cities nonetheless remains. Traditional disciplines dealing with the built environment—such as urban or regional planning, architecture, and civil engineering—are not well equipped to tackle increasing complexity of emerging agglomerations. To begin with, these disciplines are not properly bundled together, let alone capable of cooperating with all the other disciplines that are now needed—such as economics, sociology, or public medicine. What mega cities now need is mega project management integrating all relevant disciplines to engage in emerging urban and regional problems. Mega project management needs to be multidisciplinary, entrepreneurial, and open-ended. There is no place for pessimism in this regard, but the first step forward is in building of teams capable of tackling increasingly complex problems of urban growth. And this step must be taken by universities around the globe working together.