An agency is ready to undertake a large modernization effort.

According to the Implementation Roadmap article on the Scaled Agile Framework website, the appropriate first step for an agency that is ready to undertake a large modernization effort using SAFe is to identify and train change agents that will lead the effort. The article states that “The first step in the roadmap is to identify the change agents who will lead the transformation. These are the people who have the vision, influence, and drive to make the change happen. They include executives, managers, coaches, and other leaders who can champion the new way of working and inspire others to follow. Change agents need to be trained in the principles and practices of SAFe, as well as the skills and mindset of Lean-Agile leadership.” Therefore, the correct answer is D, identify and train change agents that will lead the effort. The other options are not accurate, as they are not the first steps in the roadmap. Mapping all stage gates to Agile events (A) is a possible activity in the fourth step, which is to create the implementation plan. Training Product Owners in the principles, practices, and benefits of adopting SAFe (B) is a possible activity in the fifth step, which is to prepare for ART launch. Starting an Agile project with an internal Agile Scrum Master © is not a recommended step in the roadmap, as it does not involve the whole ART or the Lean Portfolio Management.