from what i read...Button doesn't want to leave BAR for Williams...Sato doesn't want to leave BAR and it is now confirmed that Barichello has been in talks with BAR

Sato is praying that Button goes so he is guaranteed his seat at BAR...if Button stays and Barichello jumps on board Sato will be a test driver (he's really not doing that well of job as he often overdrives the car - damaging radiator fins underneath the car when he goes too far over the curbing causing enigine to overheat - makes errors like hitting the wrong switch causing the car to stall, etc. However, he is exciting to watch as last year during qualifying spinning in the last chicane, just missing the wall and getting back on course to even outqualify a toyota and minardi