Up, Down and Sideways: How to Be a Better Leader in 2016哪种方法更好:垂直啊r horizontal leadership?

This article is part of ourTrends 2016coverage.

The light bulb went on for Jeff Greenfield, co-founder and COO of media analytics firm C3 Metrics, on a rare vacation. It was the first one he had taken unplugged, without his phone or computer; his major activity while in Camden, Maine, turned out to be sleeping. One day he conked out at 5 p.m.