After months of speculation, Mercedes have confirmed that Ross Brawn will leave the team at the end of this year.
The 59-year-old team principal's position at the Brackley squad had been in doubt for some months after Mercedes opted to bring in former McLaren technical director Paddy Lowe.
From the get-go it was clear that Lowe had arrived with the intention of taking over from Brawn as team boss.
Mercedes, though, were still keen on the Englishman remaining at Brackley.
Brawn, however, made it known that he would only do so if he retained sole leadership of the team.
But with Merc switching to a two-pronged structure, Brawn has now decided to walk away.
Mercedes confirmed his departure on Thursday.
"First of all and most importantly, we must say thank you to Ross," said non-executive director Niki Lauda.
"When you consider the step that has been made from finishing fifth in 2012 to the second place that we have secured this season, he has been the architect of this success.
"He put the plans in place to recruit key people since early 2011, and the performance this season shows that the team is on the right track.
"We have had long discussions with Ross about how he could continue with the team but it is a basic fact that you cannot hold somebody back when they have chosen to move on.
"Ross has decided that this is the right time to hand over the reins to Toto and Paddy and we respect his decision.
"Toto and Paddy are the right people to lead our team in 2014 and beyond."