The desire to be a hero starts young in the hearts of children. To be a hero is to change the world, or so it is commonly thought. However, in order to advance the causes and truly change the world, we do not need one hero. Jeffery Walker’s piece “Solving the World’s Biggest Problems Takes Ensembles, Not Soloists” carefully details the fact that the world does not need soloists, but rather great ensembles. His idea echoes similar themes of Information Measurement Theory. We need type A leaders, but type A leaders cannot work in silos, and cannot value themselves over everyone else. In order to make a change we need every member. Walker explains that the problems we encounter today are too big for a soloist, and thus they require ensembles with a variety of talents to enact powerful change. The article calls out a number of organizations that have worked together to prevent the passage of AIDS from mother to child, other organizations that combined to reduce the number of malaria related deaths, and an assortment of other examples. Collaboration efforts are more effective and Walker’s article details how to collaborate. Further, Walker is describing how to be a good leader or rather, a type A leader.