When you have a situation like the one we had Torro Rosa near the beginning of the season you can’t tell who is at fault. Is it the car or the driver. Normally when one driver is faster than the other then you blame the slower driver. If the drivers are both slow then it’s usually a dog of a car.
Now that Vettel is in the team, we see him going half a second faster than his team mate. So maybe Berger was right to be so harsh on his drivers. Maybe they were just rubbish?