How Districts Can Build Principal Pipelines That Last

Principal pipelines can help districts recruit, prepare, support, and retain effective school leaders. But building a pipeline is only part of the work. Another challenge is making sure it lasts—through leadership transitions, shifting priorities, budget changes, and other pressures districts face over time.

A 2025 report from Vanderbilt Peabody College and Policy Studies Associates offers a framework for districts looking to build sustainable principal pipelines. The report draws on decades of prior research and lessons from the Principal Pipeline Learning Community (PPLC), a network of 84 medium- to larger-sized school districts that Wallace brought together to plan, develop, and learn from one another about building principal pipelines. The districts received planning support and guidance but no Wallace funding to implement changes.

In the report, researchers describe four pillars that can help districts sustain their principal pipelines:

1. Ensuring strategic alignment through vision and policy, such as making leader pipelines an explicit part of strategic plans and initiatives. The researchers also recommend districts articulate the need for pipelines as an evidence-based approach to hire, support, and retain high quality leaders, as well as demonstrating superintendent buy-in and leadership.
2. Communicating clarity in intent through social and organizational awareness. District leaders need clear and consistent communication with school boards, central office leaders, school-based staff, families and communities, and other stakeholders. This helps build shared understanding of what the pipeline is, why it matters, and how it supports broader district goals.
3. Aligning institutional elements and supports through people and resources, such as dedicated funding streams and hiring additional personnel to support pipelines as needed. The researchers also recommend districts review and revise internal policies and practices to align with pipeline goals, as well as solidifying their commitment to leadership and pipelines via formal school board policy and/or the strategic plan.
4. Maintaining pipeline-priority through culture, stakeholder engagement, and evaluation, such as communicating the rationale of pipelines to board members and local leaders and setting clear goals and assessment movement toward those goals. The researchers recommend engaging members across the organization, as well as working to address silos that typically partition leadership development, during the planning and execution phases of pipeline building.

The report also includes case studies of four districts—Newark Public Schools, Greenville County Schools, The School District of Philadelphia, and Cumberland County Schools—that took proactive steps to make evidence-based changes to their principal pipelines more sustainable.

While each district approached the work differently, the researchers identified several common elements across districts that had made progress. These included a vocal champion who communicated the vision for the pipeline; a central leader who served as the “hub” of the work; coordination across central office departments; and evaluation metrics that connected pipeline efforts to broader district goals.

Together, the findings suggest that sustainability is not a one-time milestone. It is an ongoing part of planning, implementing, evaluating, and improving a principal pipeline that is enacted from the start.