This paper examines the significance of leadership and management in enhancing classroom practice and improving learner outcomes in two provinces of South Africa. It is increasingly recognised, internationally and in South Africa, that managing teaching and learning is one of the most important activities for principals and other school leaders. Managing teaching and learning is one of the core modules in South Africa's new national qualification for school principals. Drawing on case studies of eight schools, mostly in disadvantaged contexts, the paper shows that managing teaching and learning are often inadequate, and largely fails to compensate for the social and educational problems facing learners and their communities.