it was only called brawn in the first place because they didnt know what to call it and noone wanted to sponsor the team! however brawn is better then mercedes! Suppose its mercedes wanted to get there moneys worth, bit of a gamble though as i see them being midtable next season.
I would love to see button at mclaren, its the sort of partner louis will thrive off, and i think button is starting to look in that direction also.