I think all us Mercedes fans realise 2010 is a "teething" year now. What needs to happen between now and Bahrain 2011 is total focus on next years car.
They need to look at what makes Red Bull quick and adopt this idealogy becuase its very clear that concentrating on the diffuser loop hole and trying to refine it further was a big mistake.
Red Bull pushed the game on, now its time for Mercedes and the rest to learn this lesson and make sure they are ready next year.