The Czechs lost twice to Holland in qualification, then beat Norway 1-0 1-0 in the two-legged playoff to qualify. They are a good team, but no Brazil. There are several teams in Europe that are better IMHO.
Of course, if Brazil insists on playing an old, slow and fat Ronaldo then they might not score enough to beat the Czechs or other good teams.
I obviously watched the games against Norway. The Czechs did not impress that much. With some luck, it could have been us in the World Cup instead of the Czechs, though I admit that the better team advanced.
Then, I watched Norway getting mauled early this year by team USA. I have never seen Norway being outplayed in that manner. Not even by Brazil. If team USA can find some of that form before saturday, the Italians could be in for a tight battle.