However, as mentioned, the interdisciplinary work teams go against the stream of how teacher were traditionally organized; it is well-known that upper secondary teachers traditionally have a stronger identity linked to their specific subject(s) than teachers who do not teach specific subject areas such as lower school teachers ([25] Linnell, 1994; [30] Månsson, 2004; [40] Siskin Santee, 1994). Moreover, even if the discourse of interdisciplinary work is strong, it is met by counteracting discourses. This gives the teachers double messages. Simultaneous with the drive for interdisciplinary work Swedish schools, as well as municipalities, are increasingly ranked based on student's grades in the traditional subjects. There is also a growing trend within "elite schools" where students are drilled in specific (and traditional) subjects, for example maths Third, in addition to the changes in their everyday work, according to the teachers themselves, professional development has shifted from a subject focus to a generic focus. The general idea with generic focus in professional development is for the interdisciplinary work teams to have joint activities that promote close collaboration, understanding and holistic views. In addition, it can be assumed that this focus improves economic efficiency, as interdisciplinary activities aimed to suit all teachers cost less