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Every management training manual says the same thing: give honest feedback, address performance gaps, and hold people accountable. But sometimes confrontation is more expensive than the mistake it's meant to correct.
The case for that gets stronger when the employee is hard to replace. Any departure might disrupt the team and trigger a recruitment process that rarely goes quickly or cheaply. The manager who lets an infraction stand uncorrected could well be making the smarter call.
Research by Henrique Castro-Pires at Harvard Business School frames this dilemma in economic rather than ethical terms. Confronting an underperforming employee carries real, measurable risk. The worker might slow down deliberately, spread grievances through the team, or damage the company's reputation. Verbal defiance can form the basis of a formal HR complaint and lead to time-consuming investigations and potential legal fees. Each instance chips away at the bottom line. Each response erodes output, strains morale, and triggers consequences that dwarf the original error.
