When the Anu came here, they operated within the strict hierarchy that was typical to their people. They had a clear chain of command, in which Enki was in charge of the scientific mission and Enlil was in charge of everything to do with the ship and military operation. Every engineer, crewmember and research staff reported to a more experienced senior.
In the early days of their involvement on Earth, they acted within their roles and treated their superiors with great respect.
To the humans, a large group of people living together, obedient to seniors, was familiar only within the context of a family. They thought the Gods were a big family, with Enlil and Enki as brothers, Ninhursag as Enki’s wife, Inanna as a granddaughter and all of them children of Anu.