Virgin pretty much admit they were wrong.

[Flibster]

Virgin split with their design team Wirth Research.

http://www.autosport.com/news/report.php/id/91924

After all the 'CFD only is the future' rubbish, they have finally decided that it doesn't work.

The last line says it all.

"Naturally, we will continue to use every means at our disposal to improve the aerodynamics of our car with immediate effect."

[edit]
Although, isn't Pat Symonds banned from F1 at the moment?