The document discusses building capacity for learning technology leadership through the CASS Network of 21st Century School Systems. It outlines the CASS Framework for School System Success, which identifies 11 dimensions of effective system leadership practice. These include developing a shared vision, building instructional capacity, relationship building, and establishing curriculum and instruction priorities. The document also examines research on leadership approaches, IT governance, and creating knowledge-building school organizations to support 21st century learning with technology.