Final answer:
The role responsible for ensuring an operational environment is not negatively impacted by a new system is the Operational Risk Manager.
Step-by-step explanation:
The role of the project assurance team that would be responsible for ensuring an operational environment is not negatively impacted by a new system is the Operational Risk Manager.
The Operational Risk Manager assesses the potential risks associated with a new system implementation, identifies potential operational impacts, and develops strategies to mitigate those risks.
They ensure that the system is tested thoroughly and its impact on the existing operational environment is assessed before implementation.
For example, they may develop contingency plans or conduct scenario testing to identify and address any potential negative impacts that the new system may have on the operational environment.