MacMahon 's work with the commission also helped provide the material for his later academic work .
MacMahon 's work on management for the Commission was very influential , and led to changes in the organization of the executive branch .
MacMahon 's work with the commission also helped provide the material for MacMahon 's later academic work .
MacMahon 's work on management for the Commission was very influential , and led to changes in the organization of the executive branch .