Management by objective works – if you know the objectives. Ninety percent of the time you dont. – Peter Drucker
Quote by Peter Drucker
![Management by objective works - if you know the objectives. Ninety Management by objective works - if you know the objectives. Ninety](/quote/management-objective-works-know-objectives-ninety.jpg)
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There is nothing so useless as doing efficiently that which should not be done at all. – Peter Drucker
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The only thing we know about the future is that it will be different. – Peter Drucker
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