Despite Merc's denials, speculation about Ross Brawn's future continues to rage with McLaren being billed as a possible destination.
Earlier this week, Mercedes non-executive director Niki Lauda dismissed reports that Brawn has already decided to leave at the end of the current season.
"The speculation is total rubbish," Lauda told The Times. "The situation is absolutely clear.
"I spoke to Ross a while ago and we agreed that he will come back to me after the final race of the season in Brazil to tell me whether he wants to stay or go. I am trying everything I can to encourage and motivate him to stay. I am the one who asked him to stay."
However, former F1 driver turned TV pundit Johnny Herbert believes Brawn could yet head to McLaren, recindling his relationship with Honda who will power McLaren from 2015 onwards.
"Potentially, I think there's a better chance of success coming, especially when Honda comes," Herbert told Sky Sports News.
"Then you have the relationship from when he was at Honda; of course, then it went to Brawn, but it was Honda who basically spent the money that got that package together.
"That success they had at Brawn, could be something through Honda, that they could actually bring together at McLaren as well."
He added: "Of course, Martin Whitmarsh is there at the moment. He's been criticised quite a lot in the last couple of years, but then things have changed: the Honda deal's come along and they've got a good aerodynamicist who's coming along at the same time.
"They say there are more personnel coming on board as well - we'll have to wait and see exactly who they are - but that is a possibility of course."
Lauda: Brawn speculation total rubbish
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