In an era defined by the rapid proliferation of Artificial Intelligence (AI) and a corresponding surge in "self-proclaimed experts," discerning genuine AI expertise from superficial knowledge has become a critical strategic imperative for organizations. The high rate of failed AI implementations underscores the urgent need for a robust validation framework. This briefing synthesizes key insights into a multi-faceted approach, moving beyond surface-level credentials to scrutinize foundational knowledge, specialized mastery, demonstrable impact, and critical leadership and human factors. It concludes with a practical validation matrix, red/green flag indicators, and strategic recommendations for acquiring and cultivating top-tier AI talent. The core message is clear: "The most credible experts are those for whom this ratio is inverted: their demonstrable impact, as measured by quantifiable business results, significant open-source contributions, or highly-cited papers, far outweighs their self-promotion."