As bureaucracies became more prevalent as a feature of organizations post-WWII, questions surfaced as to how they could be improved. Was there an optimal way to design them? What was the best role of individual members within a bureaucracy? Could individuals be developed to handle higher level roles? Among those asking such questions was Elliott Jaques, co-founder of the Tavistock Institute and later the author of the renowned book Requisite Organization that combined social theories with theories of organization.