Symonds, who has worked as a technical consultant for the Marussia team since 2011, will take up the role of chief technical officer on August 19.

AUTOSPORT understands that the change has been made as a result of the team’s struggles this year, with Coughlan stepping aside as part of a move to strengthen the squad technically after failing to score a point so far this season.

“I’m delighted that Pat is joining the team,” said team principal Frank Williams.

“His technical capabilities and sporting successes speak for themselves and I’m sure that his knowledge and leadership will contribute considerably to the success that all of us at Williams are working hard to achieve.”

Symonds, who has left the Marussia team to take up this role, is confident that the team has everything it needs to return to its historical heights.

“Williams is a team steeped in success and engineering excellence and I’m honoured to be asked to play a role in returning the team to its rightful place at the pinnacle of F1.

“Sir Frank, Mike and Claire have put in place the foundations for success and I’m immensely excited to begin this new challenge.”

Group chief executive officer Mike O’Driscoll stressed that the move was motivated by the team’s commitment to returning to winning regularly.

He paid tribute to Symonds’ skills, which he believes will play a key role in doing this.

“Williams’s sporting and engineering heritage dictates that we secure the finest talent available.

“Pat brings unrivalled technical and managerial skills in addition to a proven ability to deliver on track results.

“Our commitment to return Williams to winning ways is absolute and this appointment is yet more evidence of our collective desire to return the team to the position is deserves.”

Parr brought Mike Coughlan (left) back into F1Coughlan played a key role in the squad’s strong 2012 season, with Pastor Maldonado ending a victory drought stretching back to the end of 2004 with a win in Spain last year.

Williams has thanked him for his contribution since joining in 2011 after a major technical restructure in the wake of Sam Michael’s departure as technical director.

“The team thanks him for the significant contribution he has made since 2011 and wishes him well in his future endeavours,” said a Williams statement.