He's not going to make friend by slagging the managers of the national squads, but the cat is out of the bag now. Wenger did not hold much back claiming the managers wear out the starts serving their countries.
http://msn.foxsports.com/soccer/story/6049596
What does he expect. These competitions help identify the stars of these clubs and put a huge profit into the sport. Furthermore, the stars want to serve their countries. I for one do not completely disagree it is tough on the players. It is tough. But Wenger has to stop his whining.