नेतृत्व (leading) का निम्नलिखित में से कौन सा तत्व अधीनस्थों की भूमिका को स्पष्ट करता है?

'Even where members of a department are very willing to cooperate and work together, coordination gives a direction to that willing spirit.' This statement emphasizes that coordination is:

The principle stating that an employee should receive orders from and be accountable to only one superior is called: