I have been a scrum master twice. The first time was in 2019, but I wasn't satisfied with my work. Fortunately, there came another chance in 2020. This is a story about that second stint as a scrum master, and how I improved our work with three principles.
We usually estimate with ideal days. But we shouldn't because estimating with story points is faster and more accurate. That is not just my feeling, researches tell also so. In this blog post, I've written the reasons for it.