Why do companies hire same roles again in a short time frame after going through a retrenchment/restructuring exercise

To cut cost.

The hard truth no one wants to hear:

it is a way to get rid of underperforming or redundant people and try to hire competent ones, and with it bringing newer ideas for the company.

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You can hire 3 fresh grads by cutting out 1 middle manager, get more ideas in, reduce hierarch and politics, and save money at the same time.

To cut costs by hiring more fresh graduates than the experienced workers

Reduce high cost? Rehire to Lower wages? Maybe the ppl can answe