As NIET enters its 20th year, research continues to point to the effectiveness of NIET's support and the positive impact of investing in human capital. The Winter 2020 Research Summary captures both NIET's key long-term impact, shares promising results highlighting that the TAP System [The System for Teacher and Student Advancement] sustains effectiveness, and spotlights specific districts' successes. Among the highlights is DeSoto Parish Schools in Louisiana. Since partnering with NIET to implement the TAP System in 2008, DeSoto's decade-long commitment to excellent teaching has improved student performance, and the work has deepened even across leadership transitions.