When discussing the future of leadership, most conversations focus on bright-side traits. For example, a common topic concerns the particular qualities that leaders ought to possess in order to be effective and how these may change based on the evolution of work, organizations, and society. Although such discussions are important, they tell only half of the story. The other half is understanding what leaders should not do, which begs the question of how the dark side of leadership will evolve (or devolve) in the future.