I never expected Argentina to be successful anyway. If their manager realized that his team is made of 23 players who are supposed to be playing AS one rather then FOR one from whom they expect miracles then things could've been different...
It's not actually such a bold move. He'll get a bigger wage, chance to prove himself, and if the things don't work out he'll leave for bigger money. We've also got a great young manager who encourages offensive full back.