Ľuboš Bartečko played professional hockey for 21 seasons and he shares his personal journey of discovering cognitive testing and how it has transformed his coaching approach, allowing him to better understand his player's strengths and inconsistencies. The discussion also touches on the importance of adapting coaching methods to individual players, the role of parents in athlete development, and the distinction between physical speed and play speed. We wrap up the conversation by discussing how understanding a player's unique cognitive profile can enhance their performance and decision-making on the ice.