As part of "The Wallace Foundation's Principal Pipeline" initiative, six districts have been working to reshape their school leadership evaluation systems to provide better and more consistent feedback to principals--and ultimately to help them grow in their jobs. In this article, Pamela Mendels, a senior editor at Wallace, describes the components and impact of the new systems, with a particular focus on the changes in the Hillsborough County School District in Florida. Under the new frameworks, she says, the districts have better aligned their evaluations with their school-leadership standards and developed nuanced rubrics for evidence-collection and evaluation ratings. They have also altered the role of principal supervisors so that they spend more time in schools working with principals. The evaluations--which are focused on growth and support rather than job determinations--are seen as a continuous process of feedback as opposed to a one-time event. Thus far, according to independent research, the reception among principals in the six districts has been positive--a contrast from previous findings on principal evaluations.