[mightybyte]

There's a spectrum of efficiency/redundancy choices an organization can make. On one (theoretical) end of the spectrum the organization maximally leverages each individual's unique skills/knowledge. This is the most efficient part of the spectrum. On the other end every person is an interchangeable cog. This is the most resilient but also least efficient part of the spectrum. Small organizations usually skew much more to the efficiency end of the spectrum because they typically have significant resource constraints. As an organization grows, more people depend on its existence, and my observation has been that resilience and self preservation typically become more important than efficiency. This phenomenon is not unique to governments, it happens in all kinds of organizations.