Why Most Experimentation Programs Fail featuring Manuel Da Costa

In this episode of the Experiment Nation Podcast, host Richard Joe welcomes Manuel Da Costa, founder of Effective Experiments and now Efestra, to unpack a critical issue in the experimentation industry: the trust gap between practitioners and business decision-makers.

🎯 Manuel shares how running more experiments isn’t the goal—making better decisions is. He introduces the Learning Loop, explains why most experimentation programs stall, and gives practical strategies for connecting experimentation insights to executive decisions.

🔍 Whether you’re in CRO, product experimentation, or experimentation governance, this is a must-watch for moving beyond vanity metrics and toward real impact.

Watch the full episode here :