I don't know, all they have going for defense is Silva, I don't rate the simpson character much. Add to that that they have a weak midfield and all you are left with is home advantage. When is the last time the home team won? France 98, but then that year france was really good, they had youth plus expiriene.
Though when you think about it, this year I can't think of any team that could brag about having a great defense. And so far the results show that too.
All in all I think Brazil would have been in any of the WC one of the favorites because of their history, but in this one many people are overrating their chances a lot because they are the hosts.
People here underrate sideshow bob to a great amount. But pure defensively he's pretty good. And with silva to order him around, it makes shure his positionning is good aswel.
Then there are Marcello and Alves. Not that good in defence, but pose such attacking threat that the opponent wont commit to far down the flanks.
A weak midfield, is very much how you look at it. Yes, they lack a strategist. A metronome who calls the shots. (like belgium tbh). This is a big issue when trying to impose the play.
However, if brazil plays from organisation, especially gustavo becomes quite a good player, and suddenly you got a much more solid team who are lethal on the counter
Having that said, i think this is the weakest generation i can remember.