An efficiency network should fill key gaps and have ideal attributes. The document discusses potential functions of an efficiency network like peer challenge, collaborative problem-solving, and benchmarking. It also discusses questions around efficiency and challenges like how to collaboratively share knowledge about what works and doesn't work. Finally, it outlines a blueprint for an efficiency network in March 2011 focused on collaborative knowledge generation, sharing, and problem-solving using an easy-to-use technological platform and benchmarking tool.