In this article a study is presented in which teachers describe the working situation at their school. The aim of the study was to find out in what respects the school needed to be developed. The study was a case study and the method for collecting data was focus group dialogues. All teacher teams at a Swedish secondary school participated. The teacher teams focused on structural problems for the school. When analysing the activity in the team dialogues, problems on the group level also appeared. The necessity of teacher dialogue when initiating school development is observed and the functioning of the group is recognised as important. (Contains 3 figures.)