With the huge amount of training resources available, why do skills gaps persist? And why are they so extreme? According to research by McKinsey, 87 percent of employees lack the skills they need to be successful in their careers, even though employers spend, on average, $1,308 per worker on training every year. One of the main problems is ensuring training is appropriate and applicable. According to the Harvard Business Review, only 12 percent of employees can apply the skills learned in traini