What would it take to stop poverty from passing from parent to child again and again? It was this question that led to the creation of Harlem Children’s Zone (HCZ), a nonprofit offering support to families throughout the Harlem neighborhood of New York City. With a “cradle to career” approach, HCZ begins with early childhood support and provides pathways that continue through adolescence. It quickly earned national recognition as a successful model of an effective community-based program.

Promise Neighborhoods decided to bring that approach to cities across the country through the U.S. Department of Education. In 2011, the program selected 20 communities for federal grants. Early grantees showed promise and improved coordination across local schools, nonprofits, and families. Success emerged in some places, and partners began to operate like a system instead of a set of separate programs. But soon, the effort ran into limits of scale.

The grants stayed too small and ended too soon compared to the Harlem model. As a result, communities struggled to replace federal dollars with local philanthropy. Many also lacked the governance capacity that helped Harlem stay focused through years of change. As pressure rose, the work shifted toward compliance and narrowed metrics. Teams didn’t prioritize learning what conditions shaped the results, and ultimately, the program struggled because the design didn’t match the demands of the model.

So, what can we learn from a model that succeeds in one place but fails in another?

For local government leaders today, who are working with rising public expectations and tight funding, this history is important. Residents want solutions that reflect their lived realities, not a copy-and-paste model that made sense two years ago or in a neighborhood much different than their own. But much like the Promising Neighborhoods initiative, we often rely on early assumptions without creating space to check whether those assumptions still hold true.

Good intentions alone do not protect a program from structural blind spots. A community program may start with a clear plan, then run into realities that were hard to see at the design stage. That doesn’t mean the program was poorly designed. It means the context changed, and the program now has to change alongside it. The challenge is not just to design strong community-based programs, but to keep revisiting the foundational logic and theory of change, again and again. This not only saves time and money in the long run, but also fosters trust within your community.

Through our work at Social Insights, we have seen many of the same pitfalls when it comes to designing and scaling community-based programs.

1. Treat the original design as a starting point, not the finish line. 

Many leaders inherit community programs that were designed years earlier, or modeled after efforts in another city or state where the conditions looked much different. Those programs made sense when and where they launched, but as conditions change, the elements that once supported success may no longer exist. In other cases, a program may have been replicated without a clear understanding of what made it successful in its original setting. If the model stays fixed as is, the program may look strong on paper but fall short in practice. But with regular assessment, both at the design phase and as the program continues, you can better understand whether the approach fits your community’s current needs and where adjustments can strengthen alignment as it unfolds.

2. Widen your circle of expertise.

 It is natural to rely on internal leadership when you design or assess a program. It’s usually the faster option, and it feels like the safer one, too. But doing so also narrows the pool of ideas. Successful community-based programs depend on local knowledge. Public-private partnerships are a great way to widen this circle of expertise at the design stage and make mid-course adjustments easier later on. The same goes for community input. Prior to launch, talk with the residents who will be most affected by the program and keep having these conversations as the program continues. Treat them as partners in the work, not as passive recipients of it.

Take the Partnership for Innovation as an example. Their work focuses on democratizing innovation by creating partnership opportunities for governments, researchers, nonprofits, companies, and communities. In Columbus, Georgia, they’re supporting a partnership between the local fire department and Georgia Tech to create an AI-powered wildfire “digital twin” that improves real-time forecasting for crews and expands the Citizen Fire Academy, so community preparedness is a core element of an effective safety strategy.

3. Measure early signs of traction, not just the final results. 

You might feel pressure to demonstrate success in terms of the end results alone and produce “miracle outcomes.” The final outcomes matter, but they don’t tell the full story of a program. Early and mid-stage indicators allow you to understand how partnerships are working and how communities experience the program along the way. Build frequent check-ins into your program design so you can make course corrections while change is still possible. In one of our projects involving a partnership across three universities and two community-based organizations, we created an evaluation plan that monitored equitable and accountable relationships between constituent groups using regular pulse check surveys. This approach surfaced early signs of misalignment and conflict, and gave the partnership the data they needed to navigate complex relationships.

Community programs are not one-size-fits-all. But every context can benefit from a more intentional approach to implementation and ongoing assessment. It’s never too late to change your approach to evaluation or get started altogether. By doing so, you have a chance to shift from replication to reflection and from top-down control to shared stewardship.

DR. ZURI TAU is founder and CEO of Social Insights.