TL;DR: Scrum Master Duties, Serving a Single Team
Scrum Master Duties: supposedly, a great scrum master serves only one scrum team — that's at least a popular narrative in the scrum community. Nevertheless, there is also a loud voice that doubts that approach: what would you do the whole day - with a single team? Aren't they supposed to become self-organizing over time? And if so, does the scrum then need a scrum master 24/7?
As I worked for years as a product owner on scrum teams without a dedicated scrum master-which was working well-I was curious to learn more about that question, too. Hence I ran a survey in late June and early July 2018, the results of which are presented here.
In total, 261 scrum masters participated in this non-representative survey in the two weeks before July 5th, 2018. 19 participants chose not to provide their consent to Google processing and to store their answers. Hence their contributions were deleted, resulting in a sample size of 242 responses.