Barrichello awaiting Coughlan’s arrival at Williams
Coughlan, out of F1 since being sacked by McLaren and subsequently banned by the FIA amid the famous spy scandal, will join the British team in June, while departing technical director Sam Michael serves his last six months.
Until then, 39-year-old Barrichello admitted he is frustrated to be "driving my balls off and finishing nowhere", but insists he is not thinking of quitting.
"The car's not there, you are fighting all the way. But having said that it's just too early to think about walking away," he is quoted as saying by The Sun.
"I'm sure I will (turn things around), but I'm suffering here at the moment."
Barrichello, well clear of his record 300th grand prix, admitted the thought of former McLaren chief designer Coughlan joining is a motivating factor.
"The team is going through a tough period. And right now the family needs to hang on and create a nice environment. It's almost cuddling time to get things going.
"We just need to wait until Mike Coughlan comes in and hopefully that will give us direction with some technical leadership," he said.