Working remotely may not be the norm yet, but it’s getting close. Gallup says up to 43 percent of U.S. employees spend at least some of their time working outside of the office, and the trend is growing. This poses new and urgent challenges for managers who may not often see some of their best employees in person.

According to Gallup’s State of the American Workplace report, many organizations are realizing that creating flexible work arrangements is attractive to both the employee and the organization. Employees who work remotely some of time show greater levels of engagement, and many talented workers — particularly millennials — seek flexible work arrangements.

In this Gallup Workplace Report, Adam Hickman and Junko Sasaki provide some of the tactics managers can use to stay on top of their remote workforce.