In their full essay for "Reach the Highest Standard in Professional Learning: Resources," the authors note that more rigorous instructional requirements combined with tighter budgets challenge school systems to think more deliberately about where and how they invest in teaching effectiveness. They write that forward-thinking school sytems see adoption of a comprehensive, integrated approach to professional learning as necessary--but also fraught with challenges. In this excerpt, they outline ways in which school systems can repurpose people, time, technology, and money to enhance professional learning and more effectively build and retain a powerful teaching force.