Agile and Scrum transformation is not any easy and it takes time. For a big organization, such time can easily be counted in years. During those years you would be dealing with so-called undone organization. Scrum itself only knows three roles – ScrumMaster, Product Owner, and Development Team. That’s all we need to deliver value to the customer. The other roles are ultimately not needed.
However, at the beginning of our journey, the undone organization might be bigger than the Scrum part of our organization. As our Definition of Done is extending, the teams are getting more and more cross-functional, we are able to embrace those people and make them part of the team. The more the team extends its cross-functionality, the closer we get to the production quality and real-time feedback.
For example Architect and UX people are often at the beginning of the Scrum journey outside of the team but as the team is getting better and learn, teams are able to take it over and make it part of the Definition of Done and separate Architect and UX roles disappear and people move into teams. At first, it sounds unrealistic but in some time this is exactly what needs to happen in order to optimize for fast value delivery and feedback.