Delegate the administration of different services
As your environment grows, the complexity of managing your environment will increase with the amount of isolated group of resources you have. In order to effectively manage your environment, you will need to have a level of automation that matches the complexity of your environment.
Each team in your organization will assume different roles to manage different aspects of the environment. Delegating the administration of the services that the team will be managing in your environment will allow them to establish boundaries for data and security separately, they can build or deploy the necessary automation they need to operate and oversee the environment as they require, without affecting other teams or environments. For example, delegate the management of security services to your security team, delegate the infrastructure deployments, and template management to your Operations and Central IT teams, and delegate the management of your identity to your Identity or Security team.