Dude you just don't defeat a team coz you are supposed to! You go out & do it in the pitch, which the Czech just couldnt do. Ghana deserved to go through. Discipline is part of football ... so no excuses for the red cards.
The Czech should blame themselves for their dismal performance. They were on paper capable of great things. And they could have given Italy a run for their money if not for the stupid red card.