This is how SAFe recommends using a second operating system to deliver value. A second operating system is a way of organizing an enterprise that combines two complementary structures: a traditional hierarchy that provides stability, alignment, and efficiency; and a network of empowered teams that provides speed, agility, and creativity. A second operating system helps enterprises achieve organizational agility, which is one of the core competencies of business agility in SAFe. Organizing development around the flow of value means creating cross-functional Agile teams and ARTs that deliver value in a regular cadence. Maintaining the hierarchies means preserving the existing roles and functions that provide governance, compliance, and support. References: Organizational Agility, Dual Operating System