When investigating the literature, it seems that little attention has been paid to what kind of leadership is needed for improving teacher effectiveness in terms of focusing on the obstacles that teachers face. Therefore, this study aims mainly to explore the obstacles that hinder the teachers when they do best in terms of receiving autonomy, becoming innovative, continually teaching and learning, focusing on educational quality, committing to the organization; and what kind of leadership can be performed to cope with the obstacles. On the basis of the qualitative approach, this study was conducted through two focus groups with 24 prospective students and the content analysis of the open questionnaires answered by 14 teacher participants. At the end of the study, the author of this study developed a practical and thematic leadership model for unblocking the obstacles for effectiveness of teachers. Based on this process, the model suggested that unblocking leaders should make teachers innovative and autonomous, create continually teaching and learning culture, focus on educational quality, and approach to increase organizational commitment of teachers.