Ross Brawn has decided to leave his role at Mercedes at the end of the season, reports BBC Sport.
Although Brawn was happy to stay at Mercedes, an agreement could not be reached between Brawn and the executives which means he will leave once the final race of the season has concluded.
Brawn is one of the most successful team principals in Formula 1 history. He was the mastermind behind all seven of Michael Schumacher's at Benetton and Ferrari as well as the principal of Brawn GP (the team which took over from Honda) in 2009 when Jenson Button stormed to the World Championship title.
However, when Mercedes took over from Brawn in 2010 Brawn couldn't get anywhere near the success he achieved at Brawn, winning only one race until Lewis Hamilton joined.
Hamilton himself suffered a rather torrid 2013 season, winning only one race and teammate Nico Rosberg only managed two wins himself, but Mercedes showed a lot of promise throughout the season in qualifying.
It did seem that if everyone was patient and stuck together whilst building on their success in qualifying and turning it into race wins then Hamilton's move from McLaren would pay off and possibly become Formula 1 world champion.
Obviously, it's too early to suggest that this is all now over and Mercedes will never be successful but without Brawn it will potentially be much more difficult short term for Mercedes to win races. But Hamilton and Rosberg may be spurred on and will want to send Brawn off with a few victories before this season is over.
Mercedes believe that a lone team principal is a concept which no longer works and the team will be run by both Toto Wolff and Paddy Lowe, the two executive directors and non-executive chairman Niki Lauda will also be one of the principals.
Rumour has it that Brawn wants to join McLaren but the truthfulness in these claims is disputed.
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