Service Providers are complex organizations with several departments like IT, Service Support and Innovation. Andrea shared lessons from several Lean cases within Telecom Italia, the Italian leading Telco Service Provider. The experiences regard the Lean Data Center initiative and improvement of the Product Service Delivery and Service Assurance Processes. Andrea presented the approach he used and how he notably tailored Lean tools to a data center environment, the impact on people and the results he obtained. Specific issues of service environments were highlighted such as making the process and the work visible, applying 5S to reduce cost and improve productivity, and using QFD to better understand and specify customer value in terms of needs related to the Delivery and Assurance processes.