In this article, we describe how the recent movement towards evidence-based programming has impacted Extension. We review how the emphasis on implementing such programs with strict fidelity to an underlying program model may be at odds with Extension's strong history of adapting programming to meet the unique needs of children, youth, families, and communities. We describe several techniques that Extension professionals can use to balance program fidelity and adaptability. We suggest that Extension stakeholders may be best served when we tailor certain aspects of interventions without changing the intervention's core components that are responsible for positive outcomes.