The term 'FOCUS OF MIDDLE MANAGEMENT' can be summarized as the main responsibility of MIDDLE managers. MIDDLE managers are responsible for overseeing the activities of lower-level employees and ensuring that tasks are completed in a timely and efficient manner. They also provide guidance and support to their subordinates, while also reporting to upper-level MANAGEMENT. The acronym ABS stands for 'Accountability, Budgeting, and Scheduling', which are three of the primary responsibilities of MIDDLE managers.