"In Search of Greatness" interviews the likes of Jerry Rice, Pelé and Wayne Gretzky to answer one question: what makes them the greatest of all time? Polsky argued that creativity is the core trait among standout athletes.

Through every generation of soccer, there is always one player who stands out above the rest — one who is a special talent. Legends of the sport include Eusebio, Diego Maradona, Franz Beckenbauer, George...