Dr. Jean Oursler, owner of a sales training company, specializes in tackling psychological barriers in sales. She discusses the 'caveman brain' concept and how childhood fears can sabotage prospecting efforts. Mindset plays a crucial role in overcoming these challenges, with strategies like positive self-talk being vital. Oursler emphasizes sales leaders' need to shift focus from merely setting goals to fostering team accountability and communication. By addressing mental obstacles, sales professionals can unlock their true potential and thrive.