Add 8th Function of a Manager to POSDCORB: Communication
Apart from Gulick's 7 managerial activities or functions, another important role is: communication with passion or inner belief.
Planning, directing, reporting all needs communication & percolation to all employees for further action, achievement of goals and damage control. A visionary well spoken articulated communicator is needed to speak on the strategies and actions of the organisation to have all the stakeholders behind him and follow his decisions.
In today's globalised work environment with multicultural work force proper communication holds the key for success of a manager.