RAFA Benitez took on the Chelsea boo boys after an almighty struggle to earn a draw with Brentford in the FA Cup and told them: "We do know what we're doing".
The under-siege Chelsea boss, who has pleaded with Roman Abramovich to release funds before the end of the transfer window because his squad is not big enough, was responding to widespread chants of "You don't know what you're doing" from travelling Chelsea supporters while his team trailed Brentford 2-1.
"I can guarantee that playing Mata, changing the game, we know what we are doing," said Benitez.
While Benitez makes the case for more players with Roman Abramovich, speculation suggests that Didier Drogba has turned down a massive offer to return to Stamford Bridge for the rest of the season with an option to extend for a year.
Chelsea officials were convinced that Drogba would sign before the Thursday deadline but it now seems certain that he will choose Galatasaray instead.