Employees would have a unit leader who would be more focused on maximizing their abilities. Its objective was to develop hierarchical management. The thesis “Strategy and Structure” was published in 1962 and this book and this way of thinking was aimed at large companies that were having difficulty coping with their size. His thesis draws on four case studies that dominate from the 1920s onwards. The case studies included the Du Pont chemical company, the automobile manufacturer General Motors, the New Jersey energy company Standard Oil, and the retailer Sears Roebuck. According to the Provenmodels website, the thesis was based on these four companies developing four stages and these are: • the acquisition of resources such as employees and raw materials and the construction of marketing and distribution channels; • the establishment of functional structures to increase efficiency; • adoption of a growth and diversification strategy: diversification into new markets and products to overcome country limitations