Czech Republic haven't been a decent side in ages and that's going right back to 2006. The less said about the US the better. I'm talking about at the time, not their current status.
They were ranked 10th in the world that year. Yeah, the FIFA rankings are a joke and were especially so back then, but you don't get to 10 without being at least decent. The US was shit that year, but they still are a tough out for any team (as evidenced by their draw against Italy). And Ghana was an up-and-coming African side with a young Michael Essien.
It was a pretty tough group.