Managers are generally pretty terrible at doing that without significant input from their reports, though. So you end up with small teams that managers can effe

Managers are generally pretty terrible at doing that without significant input from their reports, though. So you end up with small teams that managers can effectively do that work for... but then you end up with armies of lower-level managers who must then be managed by legions of mid-level managers, and so on. Controlling the flow of work to "producers" has a high organizational cost in bureaucracy.] IMO the problem isn't "a lot of responsibilities", it's "a lot of things to worry about without the autonomy/authority necessary to resolve those worries". Big orgs tend to have more to worry about while also reducing autonomy and concentrating authority.