Before revision:  Inequality has not increased among the elite clubs and between the countries , however, it has changed within some national associations .
After revision:  Inequality has not increased among the elite clubs and between the countries , however, it has changed within some countries. Since the performances of national associations are more stable than the results of individual clubs, it would be better to build the seeding in the UEFA Champions League group stage upon association coefficients adjusted for league finishing positions rather than club coefficients .