In 2006, a penalty kick propelled Grosso to the pinnacle of his life, making him a hero in the hearts of countless fans. However, who could have anticipated that this man, who once shed sweat and created legends on the world stage, would experience ups and downs again and again after becoming a coach, even being regarded as a "hero in decline"? The contrast between his deification at the World Cup and the vicissitudes of his coaching career begs the question: Why isn't a talented player also a talented coach? During the 2006 World Cup final, the hearts of countless Italian football fans were tightly grasped by Grosso. In the match against France, he scored the decisive penalty kick, directly sending Italy to the top of the world. At that moment, Grosso became the "national hero" of Italian football, with nationwide celebrations, and his figure was forever etched into the annals of football history. The significance of this match went beyond victory or defeat; it was an emotional redemption for Italian football. Prior to 2006, Italian football had fallen into a slump and was even considered to have "no more geniuses." But on that day, Grosso stood up and sealed his godly status with one kick. It can be said that it was precisely this penalty kick that made countless people believe that Italian football was still the "fighting nation on the green field." However, the peak of a player does not extend to their coaching career. There is an old saying in the football world: "Playing well doesn't necessarily…