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For decades, we’ve placed efficiency at the center of strategy: We’ve run operations as close to full capacity as we can. We’ve ordered from suppliers in ways that are tightly aligned with our production schedules. We’ve worked hard to minimize costs, “sweating assets hard” under the guidance of the CFO, and we’ve delivered financial returns on a quarterly basis. In many ways, this is a system that has worked remarkably well. But as the COVID-19 pandemic has made painfully clear, it has a major flaw: It doesn’t help firms develop resilience.