I don't believe in that at all... I played football for years, our team was dominately white and we completely destroyed teams that were dominately black. I think there is a different mind set though, black people tend to be raised with a more physical physiology, whereas whites tend to have a more emotional physiology. So as a population whole, this would explain why the average IQ of whites is statsitically significantly higher than those of blacks, and why blacks dominate the porportion of the NFL players. That is why the atheletes of the white school can make a dominate team, and why the the intelligent kids from a predominately black school can still compete on debate teams, as well. I believe that nature makes you who you are and nurture makes you who you become. In this case I think the difference can be explained by nurture and not nature.