organization role

In a Service Based Enterprise, the organizational units would deliver services for which they are contractually bound to.
The enterprise would bother no more about the internal organization of the units or their inner governance as long as they do not …

The paradigm change is that the enterprise contracts and pays for a service rather than for the administration of a team/circle that delivers it. The enterprise signs a contract with a service delivering entity rather than separate contracts with team/…

Holacracy is at times over specified, over-prescribed. Is it really part of an organizational design method to establish rules for meetings as it is the case for Holacracy?

To the best of my understanding, there are no circle or team manager roles. All decisions are taken by the circle collectively.
Is then the circle working somehow like an Israeli kibbutzim collective farm?