"The basic idea is to:
(a) enumerate the essential subsystems of a decentralized system,
(b) determine how many entities one would need to be compromised to control each subsystem, and
(c) then use the minimum of these as a measure of the effective decentralization of the system.
The higher the value of this minimum Nakamoto coefficient, the more decentralized the system is."
If the security of your network is fundamentally based on trust that one central party was honest, then you can't have decentralisation regardless of how many addresses you have, how many miners you have, how many nodes you have, or how many clients you have.