I have a scrum team that currently comprises of 9 Developers, 2 BSA's and 1 PO and 1 SM and I am curious to understand where the BSA's fit in the Scrum team. Should they be considered as part of the development team (which would cause the development team size to be large at the moment) or should they be considered as extensions to the role of Product owner? My opinion is that, as the BSA (atleast in my team) is not a cross functional role, they should not be part of the development team.
I am also confused or have a hard time understanding these statements: