The four functions of the management are planning, organizing, leading and staffing. All these four functions are meant for an efficient performance of the system or organization. While practicing these four functions there is need for ensuring that everything remains in the given or expected range and the outcome of all actions is expected. To ensure the alignment to expected values or range there is need for controlling these activities so that goals are met and no function of these four functions tends to dominate or encroach in others territory.
All these four functions are effective only when they are practiced with care and control. Excessive use of any function leads to ineffective use of others and the results or outcomes of the actions are not the best. The best result is possible when these four functions are in balance and it is the control mechanism that helps in balancing these four functions.