This study aims to demonstrate that applying rational emotional behavior theory (REBT) concepts can help to improve the psychological adaptation of future coaches in the post-pandemic era. The current research utilizes a qualitative approach with a sample of 14 future coaches, namely, students of the study program “Training systems” at Lithuanian Sports University. These students are also active athletes (basketball players). Interview questions were developed based on the ABC(DE) model, and answers were analyzed following the methodology of content analysis. In general, our findings fit the ABC(DE) framework. However, there are several important exceptions. During discussions, participants presented their basic beliefs in the form of statements rather than demands. The ABC(DE) framework predicts the latter. Furthermore, participants’ automatic thoughts are not logical derivatives of their basic beliefs, contrary to the REBT theory. However, it is possible to interpret basic beliefs as an explanation for automatic thoughts, meaning that this interpretation seemingly does not contradict the theoretical principles of REBT. As such, REBT appears to be helpful for better understanding the psychological adaptation problems that arose during the pandemic and are relevant in the post-pandemic era.