The framework rests on McClelland's competence method: compare the top ten percent in a role with average performers and find the abilities that distinguish them. IQ and technical skill are threshold competencies needed to hold the job; emotional intelligence supplies the distinguishing competencies, on Goleman's analysis of close to 100 organizations' competence models about twice as important as cognitive ability across jobs and levels and most of what distinguishes star leaders at the top. The model has four domains, namely relationship management, social awareness, self-management and self-awareness, the first two about managing oneself and the last two about managing relationships, with learned and learnable competencies in each; a leader needs a balance of strengths across the competencies rather than strength in the likeable ones alone.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.