There's no hard and fast rule for the number of DevOps admins a team
should have. Generally, it's a good idea to keep this number low: Compromise
of an admin account could be disastrous. In smaller organizations, a single
DevOps admin will often suffice, perhaps supplemented by a junior aide with
restricted permissions. In larger organizations, more admins
may be needed, ideally in a hierarchy that's controlled by logical
boundaries such as division, business unit, or product.