The Camrilla is very hierarchical, very structured,
it's a question of local versus overall jurisdiction.

The Prince
is the ruler of a city, usually the oldest or most powerful
vampire in the area. All owe him/her respect and deference,
for he/she is the law and the face of the Camarilla.
The Prince is ideally supported by the Primogen Council.

Primogen Council,
is a group of the eldest or most powerful vampires,
one from each Clan. I say ideally because there is a strange
power balance between the Prince and the Primogen council,
one that varies from city to city. In some, the Prince is in command,
with the Primogen Council as de facto servants enforcing him/her will.
In other places, the Council acts like a board of directors,
with the Prince as their enforcer. In any circumstance,
the Primogen are usually the heads of their Clans as well,
and therefore responsible for those members as well.
They are also due a certain amount of respect for their position.
Other offices have been created to aide the Prince's grip on the city.

The Keeper of Elysium,
is charged with the enforcement of the Masquerade,
and also aiding the Prince in such matters.

Regent or Seneschal
is charged with ruling the city while the Prince is out of town.
But all of these titles are optional, things left on the books until needed.
When the Prince needs help maintaining order,
the Camarilla has provided recourses for help.

The seven Justicars,
one for each clan. These ancient and powerful kindred
are not bound by the Traditions (except The Masquerade)
and charged with one thing: defending the Camarilla from all threats,
internal and external. The Justicars cannot do it alone,
so they have a number of Kindred helping them, Archorns.

Archon,
while not as powerful as their Justicars,
still hold more status than most vampires, and can freely travel,
as well as being partially free from Kindred law (not as much as the Justicars.)
Archons act as enforcers as well as point men,
scouting out an area to see if further help is needed.

The Inner Circle,
a council of seven vampires (one from each clan),rules the entire Camarilla.
They make decisions from their seat in Europe.
These are the only people that the Justicars need answer to.
They are the ones that make the grand policy decisions,
and rule from their old castles in seclusion.

So the Camarilla system works as the Prince decides to run it.
Most kinderd never deal with the Camarilla outside their city.