Having worked in both very flat and very hierarchical organizations, I can tell you exactly what makes a good manager. Any manager, good or bad, is an information bottleneck. Managers have more organizational exposure and are thus a much bigger target for communication. The good ones filter out noise and help you prioritize your work.
The problem I have with less hierarchical organizations is that when you have only one layer of middle management, middle management gets squeezed between executives and individual contributors and tends to burn out. Even worse with zero layers, where individual contributors are expected to self-manage. Communication overhead ends up eating most of the productive hours of the day.
The empire-building problem with more hierarchical organizations is already well explored in this thread, but communications are also a problem. With too many layers, organizational alignment suffers, and silos develop even if the managers involved are uniformly well-intentioned.
There's an underappreciated upside to silos, however, which is that functional parts of the organization can end up insulated from dysfunctional ones. In flat organizations, dysfunction anywhere is dysfunction everywhere.
The problem I have with less hierarchical organizations is that when you have only one layer of middle management, middle management gets squeezed between executives and individual contributors and tends to burn out. Even worse with zero layers, where individual contributors are expected to self-manage. Communication overhead ends up eating most of the productive hours of the day.
The empire-building problem with more hierarchical organizations is already well explored in this thread, but communications are also a problem. With too many layers, organizational alignment suffers, and silos develop even if the managers involved are uniformly well-intentioned.
There's an underappreciated upside to silos, however, which is that functional parts of the organization can end up insulated from dysfunctional ones. In flat organizations, dysfunction anywhere is dysfunction everywhere.