There is a budget line in your business that no one is managing. According to research by Leadership IQ, confirmed across multiple subsequent studies, the average 18-month failure rate across industries is 46%—meaning nearly one in two hires either underperforms significantly or leaves within 18 months. The cost of each of those failures runs between 50% and 200% of that employee’s annual salary, accounting for recruiting costs, onboarding investment, lost productivity, team disruption, an...