the middle echelon of administration in business and industry.
Origin
1945-50
Examples from the web for middle management
They also cut down on middle management and continued to add processes and equipment to the already crowded plant.
British Dictionary definitions for middle management
middle management
noun
1.
a level of management in an organization or business consisting of executives or senior supervisory staff in charge of the detailed running of an organization or business and reporting to top management Compare top management