* Overhiring adjustment without paying severances or doing official layoffs
* Monkey see, monkey do. Management is highly unoriginal, and loves to copy what others are doing without thought.
* Ego and power. Management loves in office, can't imagine anyone else not wanting to be face to face. Crack the whip, people respond and do what you say, so there's an ego boost
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* This article is assuming that management cares about their staff over their own personal priorities. Everyone is replaceable, and there's no reason for any loyalty, whether down or up the chain.