popular among technology companies in Silicon Valley, is that organizations should adopt “flat” structures, in which management layers are thin or even nonexistent. Star employees are more productive, the theory goes, and more likely to stay, when they are given autonomy and offered a voice in decision-making. Some start-ups have done away with job titles entirely, organizing workers into leaderless “self-managing teams” that report directly to top executives.
This is ignorant. Walker may have read a couple of articles and drawn this conclusion. It ignores the fact that the dominant companies and models in Silicon Valley are quite hierarchical. Google tried doing away with management and it didn't work, so they turned to studying what did, with excellent results we can use.