Which is a supporting role on a Disciplined Agile (DA) team?

In Disciplined Agile (DA), aSpecialistis considered a supporting role. Specialists are individuals with deep expertise in a specific area, such as a database administrator, security expert, or a user experience (UX) designer. They are not necessarily core members of the delivery team but can be brought in as needed to provide specific skills or knowledge that the team requires at various points throughout the project. The focus of supporting roles like Specialists is to supplement the team's capabilities and help address specific technical challenges.