The departure of Ross Brawn will leave a big hole at Mercedes, the squad's motorsport chief Toto Wolff has admitted.
Brawn confirmed at the end of 2013 that he would step down as team principal with Wolff taking over as executive director in charge of business and former McLaren man Paddy Lowe being named head of the technical side.
Although Merc have done well in terms of easing Wolff and Lowe into the positions for more than a year, Brawn's experience will be a massive loss for the Brackley squad.
"Of course there is always an impact when somebody like Ross leaves," Wolff is quoted as saying by Autosport.
"He was an iconic leader, and we are going to notice that he is missing when it is getting stressful on race weekends. His leadership and his guidance is something that was extraordinary.
"It has been felt that he has gone, but it [Mercedes] is a large organisation with a couple of hundred really good people, and that is why we are trying to saddle it up."
Lowe was initially touted as a possible team principal for Mercedes, but the team believe that position is "outdated", opting to make him the joint boss with Wolff.
"I like to paint it more as a partnership and not a division of responsibility," Lowe said. "We work together on most things.
"He happens to specialise more on the commercial side, and myself on the technical side, but between us we're running the team.
"Of course, my background is technical director so that gives me a benefit to understand some of the things they are doing. But my role won't be hugely different to what Ross did the previous few years.
"It's something that is very exciting for me to move forward into, for both next season and the ones beyond."