I've understood the Scrum Team to be one cohesive team consisting of three responsibility domains:
- Development team
- Product Owner
- Scrum Master
Collectively, we all seek to refine/define and accomplish the sprint goal each iteration, however the team decides that needs to be, which, as a self-organizing team, could have those responsibility domains occasionally intersect (i.e. Scrum Master on PTO, someone coached and comfortable accepting that responsibility for a brief period could stand in).
A scenario recently occurred:
We recently implemented the ceremonies of SAFe. During PI Planning, we have a Scrum of Scrums where we meet every couple hours to discuss impediments and dependencies with other Scrum Masters who are working with the teams. This creates problems when multiple Scrum Masters are spread across multiple teams. The Product Owner for one of the teams offered to be the stand-in Scrum Master only for the Scrum of Scrum meetings. The Director stated that the Product Owner is not part of the Scrum team, that the Scrum team is directed by the PO, and that the stand-in should be someone from the team. In my experience this is antithetical to Scrum, and a cursory search also suggests this is incorrect.
Is the Product Owner part of the Scrum Team, such that a self-organizing could that decides the PO would be the best fit for the Scrum Master for a short period of time?