Why do European soccer clubs change coaches so much more than U.S. teams?

While European leagues like the Premier League see frequent changes in coaches, U.S. teams in leagues such as the NFL, NBA, MLB, and NHL exhibit greater stability in coaching positions. Part of this difference lies in the different administrative structures and performance evaluation methods in each sport. In Europe, the pressure is higher to achieve immediate success, especially in competitions like the Champions League. This pressure can lead to quick changes in coaches if teams do not achieve desired results.