School-Wide Interventions and What They Taught Me About Culture Change: It Never Starts at the Top

Earlier in my career, I designed and implemented school-wide psychological interventions. Not individual therapy with students—though I did that too—but systemic campaigns aimed at changing the culture of an entire school: how students treated each other, how staff responded to behavioral crises, how the building felt when you walked through the door. It was some of the most instructive work I have ever done, and the central lesson applies directly to anyone trying to change the culture of a team, a department, or an organization.

The lesson is this: culture change never starts at the top. It starts with the people who have the most contact hours with the population you are trying to reach.

The Principal Is Not the Culture

When a school wants to address bullying, improve emotional regulation among students, or reduce disciplinary incidents, the default approach is top-down: the principal announces a new policy, a poster campaign goes up in the hallways, there is an assembly. And almost universally, nothing changes. The students do not internalize the message because the message did not come from someone they have a relationship with. It came from an authority figure delivering a mandate, which adolescents are neurologically wired to resist.

The interventions that actually worked—and the research is clear on this—were the ones that trained the adults who had the most daily contact with students: classroom teachers, paraprofessionals, lunch monitors, coaches, front office staff. These are the people who set the emotional tone of a building. When a lunch monitor knows how to de-escalate a conflict without yelling, that is culture change. When a teacher responds to a disruptive student with curiosity rather than punishment, and the other students witness it, that is culture change. The principal’s memo did not produce it. The relationship did.

The Organizational Parallel Is Exact

In every organization I consult with or observe through my work at FreedomCare, the same dynamic plays out. The CEO announces a values initiative. New language appears on the website. There is an all-hands meeting. And six months later, nothing has changed because the people who determine the day-to-day experience of employees—the direct managers, the team leads, the people who run the meetings and conduct the one-on-ones—were never equipped to embody the change.

Culture is not what is written on the wall. Culture is what happens when the meeting gets tense. Culture is how a new employee is treated during their first week. Culture is whether someone who raises a concern is thanked or subtly penalized. These moments are produced by middle management and peer dynamics, not by executive vision statements.

What School Interventions Got Right

The best school-wide interventions I was part of shared a common architecture that transfers directly to organizational settings.

They started with assessment, not intervention. Before designing anything, we observed. We walked the hallways. We talked to students, teachers, and parents. We collected data on where problems actually occurred—not where the administration thought they occurred. In organizations, this means conducting an honest cultural assessment before launching a change initiative. Survey your people. Hold listening sessions. Look at your exit interview data. The culture you think you have and the culture you actually have are rarely the same.

They trained the people closest to the problem. We did not send memos to teachers. We sat in their classrooms, modeled the skills, co-facilitated difficult conversations with students, and provided ongoing coaching. In organizations, this means investing in your managers—not with a one-time leadership workshop but with sustained skill-building, role-playing, and support. If your managers cannot have a difficult conversation without it becoming adversarial, your culture initiative will fail regardless of what the CEO says.

They measured behavior, not sentiment. We did not ask students if they felt the school was safer. We tracked behavioral incidents, disciplinary referrals, and attendance data. Feelings are important, but behavior is where culture lives. In organizations, measure the things that reflect real cultural health: voluntary turnover, promotion equity, how long it takes to fill open positions internally, how many people use mental health benefits.

They were sustained, not episodic. A single anti-bullying assembly does nothing. A year-long program with weekly reinforcement, adult modeling, and student leadership components changes behavior. In organizations, culture change is not a project with a launch date and a wrap-up. It is an ongoing practice, like fitness. The moment you stop investing, entropy takes over.

Where This Leaves You

If you are trying to change the culture of anything—a team of five, a division of five hundred, a family—start by identifying who has the most contact hours with the people you are trying to reach. Train those people. Support those people. Resource those people. And measure whether behavior changes, not whether everyone now uses the right vocabulary.

The poster on the wall is not your culture. The moment in the hallway is.

Culture change does not cascade down from a vision statement. It radiates outward from the people who show up every day and decide, in small moments, what this place actually is.

Trying to Shift Your Team’s Culture?

I bring a background in school-wide systemic intervention, organizational leadership, and clinical psychology to my work with executives and teams. Virtual sessions across California and New York at drdgabay.com.