Ensuring students' equitable access to talented educators remains a national priority. Congress established the Teacher and School Leader (TSL) Incentive competitive grant program in 2015 to help address this goal, providing financial support to selected school districts to improve their systems for hiring, supporting, and retaining educators, particularly in high-need schools. Grantees can use TSL funds flexibly, for either or both of the two main components of those systems: basic infrastructure for generating and managing data, and a set of strategies that use these data to improve their educator workforce. However, the TSL program requires applicants to already be using two specific data-driven strategies that research has shown to be promising: performance-based compensation and personalized support and feedback to educators. As part of the 2017 competition, the program also incentivized the use of grant funds to address equity and educator diversity. With those initial 3-year grants having now drawn to a close, this report provides the first comprehensive review of the activities 2017 TSL grantee districts prioritized with their TSL funds, and how well these activities aligned with the key aspects of the program. The report is based on interviews conducted near the end of the grant period for the 24 districts that were part of the 2017 TSL cohort and is part of a broader evaluation of TSL required by Congress. [For the Study Highlights, see ED627049.]