I'd like to see an org-chart depth analysis for different organizations. It'd be interesting to map bureaucratic processes to the structure of an org chart and

I'd like to see an org-chart depth analysis for different organizations. It'd be interesting to map bureaucratic processes to the structure of an org chart and verify Conway's law. The U.S. Army uses the concept of a span of control that dictates each level of hierarchy should have between 2 and 5 reports. There's about 10 levels between a private and the secretary of the army. The Active Duty Army is about 470k which works out to 3.7 reports per level from 470000^(1/10). There's about 1M total personnel which works out to 3.9 reports per level. Google has 114k employees. With your ideal of 7, that works out to 5.3 reports per level given by 114000^(1/7). I'd be pretty surprised if there's a depth of 12 at Google. That's 2.6 reports per level.