Pipelines are Feasible, Affordable and Effective

This groundbreaking research report from the RAND Corporation finds that schools in six large districts that built principal pipelines markedly outperformed similar schools in other districts in the same states in student achievement. Moreover, dev​​eloping and operating pipelines proved doable for the districts—and it was relatively inexpensive.

Get answers to questions about Wallace’s Principal Pipeline Initiative in our FAQ
Find news coverage and commentary about the research and pipeline initiative here.​​


Pipelines: An Animated Guide


Clic​k h​ere for an interactive infographic on The Principal Pipeline.​

Editor’s note: As of October 2019, Wallace is describing the pipeline as an approach comprising seven domains. The illustration above reflects that change. The interactive infographic, however, predates the new description. It defines the pipeline as comprising four components and two supporting elements (leader tracking systems and principal supervisors). Together, these components and elements are six of the domains; the seventh is systems for sustainability.​

Watch the Livestream​

Click here​ to download the presentation.​​​​

The Pipeline Library

​Wallace’s Principal Pipeline Initiative generated eight reports from a wide-ranging research study; a follow-up report on sustainability, examining the status of the pipelines two years after the initiative ended; and an assessment of how the research for principal pipeline effectiveness stacks up against evidence requirements for federal funding under Title I and other parts of the Every Student Succeeds Act. 


Building a Stronger Principalship: Five-report series on the principal pipeline implementation