Why was Japan team so terrible?

As you know, Japan was already game over from FIFA World Cup
http://www.telegraph.co.uk/sport/football/picturegalleries/10928116/All-32-World-Cup-teams-reviewed-By-Jonathan-Liew.html?image=1
In this article, Japan team is ranked 31th of the 32 countries.

In fact, Japan couldn't win. Lots people might disappointed it.
I wonder why Japan was gone so fast.

First, the most important cause is that defences was too weak.
Yoshida and Konno were center backs.
However, Yoshda didn't have a oppotunity to play in his club very much and Konno played as a defensive midfielder in his club.

Second, the strikers were not dangerous for opponents. The stricker's shoot were two way, too slow or too fast to shoot.
Therefore, Japan could not go to the next stage.
I hope Japan will be more stronger than now 4 years later.