Each subordinate should have only one superior whose command he has to obey. This is known as
Unity of command is one of the 14 principles of management given by Henry Fayol. It states that a sub-ordinate should receive orders and be accountable to one and only one boss at a time. Unity of command is essential as more than one boss would undermines authority,weaken discipline, divide loyalty, create confusion, delay and chaos, lead to escaping of responsibilities, duplication of work and overlapping of efforts.