If you need senior talent but can’t afford full-time hires, consider fractional leadership, where part-time executives work with multiple organizations. Common in startups, the practice is spreading to other sectors, yet many leaders don’t know how to make it work. Researcher Tomoko Yokoi and executive Amy Bonsall explain when and how fractional leadership benefits both organizations and leaders. They coauthored the HBR article “How Part-Time Senior Leaders Can Help Your Business.”