This document discusses different organizational models for DevOps including traditional functional silos (Model 1), matrix models (Model 2A and 2B), product models (Model 3), and adaptive models (Model X). It evaluates each model based on whether it promotes DevOps, encourages collaboration and communication, has the right accountability, is flat, can optimize as a whole, is self-organizing, and implements necessary risk mitigation. The contributing authors are listed from US Citizenship and Immigration Services, Disney, Adobe Systems, Accenture, Verizon, and IBM.