Recent migratory crises are shedding light on the limits of the global systems of migration governance. These new challenges call for new solutions and the creation of new tools for diagnosis. The “toolbox” currently available appears indeed inadequate both to capture the complexity of the actual governance system and to face the reality of the present crises of human mobility. This paper gives an overview of some its gaps and highlights some of the crucial aspects that need to be covered. New tools for evaluating migration governance need to account for all the actors, layers, and stages of migration governance and to be grounded on the principle of migrant protection.