Which skill set pertains to having a concrete knowledge base of the sport?

The skill set that pertains to having a concrete knowledge base of the sport is the technical skill set. This includes understanding the rules, techniques, strategies, and various aspects of the sport itself. A solid technical foundation allows a coach to educate athletes effectively, demonstrate capabilities, and address specific skills that need improvement.

While interpersonal skills focus on communication and relationships with athletes, managerial skills relate to organizing team activities and resources, and tactical skills involve the strategic aspects of applying knowledge during competitions. However, none of these areas substitute for the fundamental technical knowledge that underpins effective coaching. Therefore, having a thorough understanding of the sport is essential for a coach to help athletes develop and succeed.