I don't think this would be a grand conspiracy by Vieira to deprive Mix of the opportunity - Mix would have to be in on it too. And while the National Team is what every player aims for, it's not an automatic "For King & Country" rise to attention. Players from time to time do not want to join up because they do want to focus on their clubs and holding down a position. However, with the USMNT a player cannot decline a call up without being systematically banished from the team - Landon Donovan is a prime example. He turned down Klinnsman, and his career effectively ended on the national team. Mix has a great skill set, but its different than anything JK plays with the MNT - Mix will never unseat Bradley, Jones, Bedoya, or Beckerman - not that I necessary think they're each better but they (with the exception of Bedoya) have skill sets that if needed on the field, Mix cannot produce the same way. So Mix knows he's a bench player at best, and in the past he hasn't gotten off the bench - he may simply not want to leave his club knowing that he can help his club more than he could help the MNT.