Elliott Jaques
Elliott Jaques ( January 18 , 1917 – March 8 , 2003 ) was a Canadian psychoanalyst , social scientist and management consultant known for as originator of concepts such as ‘corporate culture’ , ‘mid-life crisis’ , ‘fair pay’ , ‘maturation curves’ , ‘time span of discretion’ ( level of work ) and requisite organization , as a total system of managerial organization . 
<triplet> Elliott Jaques <subj> January 18, 1917 <obj> date of birth <subj> March 8, 2003 <obj> date of death