This report offers state leaders key areas for action to continue progress in implementing evaluation systems, even as federal policies on teacher evaluation relax state requirements. The Southern Regional Education Board (SREB) offers its current best thinking for how state agencies can make the smartest use of funds, time and partners to refine and sustain teacher evaluation and feedback systems. In the first section, the authors highlight ways to refine the design of evaluation systems that could increase evaluation's impact on teachers' professional growth and increase educator ownership of their evaluation. In the second section, they draw lessons from the successes and challenges in supporting teacher evaluation implementation through effective training, district flexibility and technical assistance. In the third section, we discuss the importance of continuous improvement and offer different approaches to monitoring implementation that fit various state contexts. In each section, the authors illustrate examples of promising practices we see in SREB states.