It’s a sad truth about the workplace: Just 30% of employees are actively committed to doing a good job. According to Gallup’s 2013 State of the American Workplace report, 50% of employees merely put their time in, while the remaining 20% act out their discontent in counterproductive ways, negatively influencing their coworkers, missing days on the job, and driving customers away through poor service. Gallup estimates that the 20% group alone costs the U.S. economy around half a trillion dollars each year.

What’s the reason for the widespread employee disengagement? According to Gallup, poor leadership is a key cause.