This episode explores how Common Thread Collective (CTC) uses its data platform, StatList, to guide e-commerce growth strategies, focusing on a real-world scenario where a client is significantly exceeding contribution margin expectations. Against the backdrop of a client being 61% ahead on contribution margin but 32% behind on ad spend, the discussion highlights the potential pitfalls of underspending in the face of high efficiency, which can negatively impact new customer acquisition. More significantly, the speakers emphasize that beating forecasts can be as problematic as missing them, as it may indicate untapped growth opportunities and a need to reinvest excess margin into areas like new customer acquisition or higher-funnel marketing activities. For instance, the team discovered that while the overall marketing efficiency ratio (MER) looked great, new customer revenue was lagging, signaling a potential future problem with returning customer revenue. As the discussion pivoted to channel-specific performance, it was revealed that Facebook's retargeting campaigns were outperforming acquisition campaigns, leading to a reluctance to increase ad spend despite the available margin. This case study reflects emerging industry patterns related to the importance of balancing short-term efficiency with long-term growth and the need for a holistic view of marketing performance beyond individual channel metrics.