This three-volume report describes the "SAM (School Administration Manager) process," an approach that about 700 schools around the nation are using to direct more of principals' time and effort to improve teaching and learning in classrooms. Research has shown that a principal's instructional leadership is second only to teaching among school-related influences on student success. But principals often find themselves mired in matters of day-to-day administration and have little time to cultivate better teaching. The SAM process is designed to free up principals' time so they can focus on improving instruction in classrooms. This series was the result of a Wallace-commissioned effort to investigate the SAM approach, describe how it has changed and examine the feasibility of a randomized controlled trial to understand its effects. Volume 1 describes the changes to the SAM process since earlier studies about it were conducted and finds that it has evolved, focusing, for example, not just on the quantity of instructional time but also its quality. A key finding, based on a survey of SAM principals, interviews and other sources, is that the research results "are consistent with the idea that the SAM process helps principals focus on and find ways to increase the time they engage with the school's instructional program." For the future, the report says, an area of continuing development for the process will be a focus on the quality of classroom instruction. Volume 2 finds that the approach could be replicated in a large enough number of schools, with enough fidelity to a theoretical model, that a randomized controlled trial would be a meaningful test of its impact. Volume 3 includes 10 appendices referred to in the first two volumes: (1) The Study Methodology; (2) Sam Process Job Descriptions Provided By Nsip; (3) Team Performance Rubric; (4) Annotated Bibliography; (5) Interview Analysis Of Sam Process--Time Change Coaches and Implementation Specialists; (6) Principal And Sam Survey Results; (7) Sam Team Implementation; (8) Landscape Analysis Of Sam Process Shadowing And Calendar Data; (9) Interview Protocols; and (10) Principal And Sam Surveys And Survey Solicitations. [For "Making Time for Instructional Leadership. Volume 1: Executive Summary," see ED559971; "Making Time for Instructional Leadership. Volume 1: The Evolution of the SAM Process," see ED559974; and "Making Time for Instructional Leadership. Volume 2: The Feasibility of a Randomized Control Trial of the SAM Process," see ED559972.]