Although the term "instructional leadership" seems to hold promise in providing educational leaders a set of unique insights and practices for their roles in enhancing teaching and learning, the conceptual development remains ambiguous. A variety of investigators offer a diversity of constructs and subconstructs in a still early stage of theory development. The concurrent, rather than interactive and synthetic, proliferation of approaches to postulations about instructional leadership further confounds understanding about a potentially important field of study. Methodological problems stem from the current obstacles in conceptualizing instructional leadership.