Presented by Annamarie Kreyenberg at agile42 Connect in Berlin, November 2015 – During the Lean Transition (at Siemens DF Motion Control) the Obeya Room was an important change management tool for the PLM organization (>2000 employees). In the Obeya Room Lean principles were discussed, transparency of development topics and teams achieved step-by-step, project impediments escalated and priorities set. At the same time, the behavior of people in this room was an excellent reflection of the progress of the cultural change. Teams and managers experimented with new behaviors, creating role models and examples for the entire organization. This talk will focus on the main phases of this change as reflected in the Obeya room during the past 2 years, and what the organization has learned.