Data-driven marketing, once a novel strategy, has rapidly evolved, becoming an essential practice for businesses aiming to leverage ubiquitous data for competitive advantage. The discussion between Clearbit CMO Kevin Tate and Sendoso CEO Kris Rudeegraap highlights key strategies for harnessing data effectively in marketing. Rudeegraap emphasizes the importance of early investment in a robust tech stack, which can support business scaling and future growth, as well as investing in long-term tools to avoid costly platform switches. The use of data to refine the Ideal Customer Profile (ICP) and evolve go-to-market strategies is crucial, as it helps identify not just ideal customers, but also those to avoid. However, Rudeegraap cautions against over-reliance on quantitative data alone, advocating for direct customer interactions to understand their experiences and nuances better. Additionally, smaller customers, though often overlooked, can offer significant value and insights, potentially growing into larger accounts or revealing valuable use cases for products.