[leijggigf]

You're right about their dominance being erased, but I'm still a tad unsure as to whether the Brawn drop-off was quite so marked, or whether it was exacerbated by Button's struggle to reach the championship finishing line and the improvement shown by other teams.

Add to that the fact that the car had issues with pace during cooler weather. Tires didn't heat up well. All other comments above are valid as well.