Goalie Blunders - Ball or Balls?

We've seen plenty of keeper blunders so far this World Cup. Most of the teams have blamed the ball, but my question is this... Is it the ball, or is that a load of balls?

We've had Robert Green for England. Justo Villar for Paraguay. Faouzi Chaouchi for Algeria. All keepers who have made bad mistakes in regards to the Jabulani, the ball being used.

According to adidas, it has been thoroughly tested, and gone without complaint before the World Cup. Yes, it makes it more exciting, but surely the balls should be fair for all members of the team, rather than all but the keepers?

And also, why would it be the ball's fault? Surely if you're meant to be the best keeper from your country, then you get behind that ball if its the last thing you do.

I'm going with Balls. It's not the ball, its the players.