Employee centred supervision more productive than job centred
The organisational psychologist (1903–1981) Rensis Likert is best known for his research on management styles.
As a founder of the University of Michigan's Institute for Social Research he focused particular attention to research on organizations.
He expanded on the Michigan leadership studies with extensive research into what differentiates effective managers from ineffective managers.
"Supervisors with the best records of performance focus their primary attention on the human aspects of their subordinates' problems and on endeavoring to build effective work groups with high performance goals."
Likert New Patterns of Management 
Likert defined two styles of managers:
(1) Job centered managers - who were found to be the least productive.
(2) Employee centred managers - who were found to be the most effective.
Likert identified 4 main styles of management. Hardly surprisingly, System 4 is regarded as the optimum solution!