किसी संगठन में श्रम विभाजन (कार्य विभाजन) का मुख्य उद्देश्य क्या है?

In administrative terminology, 'Hierarchy' refers to:

In a sound democratic administration, which two key principles must always go hand in hand?

Who stated, 'Coordination is the first principle of organization and includes within itself all other principles which are subordinate to it and through which it operates'?