Ansible is an open-source IT automation tool that is easy to set up and does not require an agent to be installed on target devices. It uses a declarative language and can be extended with custom modules written in Python, which aligns well with the IT team's experience. Ansible's agentless architecture and support for Python make it an ideal choice for the company's requirements. References: Implementing and Operating Cisco Data Center Core Technologies (DCCOR) course materials and the Cisco Data Center Core Technologies source book.