Team delivers needs a lot of time to deliver even the simplest stories- how to know why?

2018-03-09 08:44:55

So, the problem, from the management perspective is that a scrum team delivers a only the simpliest stories within the whole sprint. Literally changing a button takes two weeks. The team estimates within a stable velocity, and mostly delivers everything that they commit to successfully.

I (a Scrum Master) have many suspitions why is that so, however I'd like to hear these problems directly from the development team. Do you have any tips on how to tackle this problem? What retrospective activities should I prepare for the team?

To clarify: I'm more than sure that the problem lies within the development process rather than the overall unwillingness to work.