Jenson Button is confident Ron Dennis can push McLaren back to the front of the grid although the name of his new team boss remains a mystery.
Earlier this month, Dennis returned to the helm at McLaren and promised changes, one of which is believed to be Martin Whitmarsh's departure.
Whitmarsh, who led the team after taking over from Dennis, was absent from Friday's launch of the MP4-29 amidst rumours that Eric Boullier, who left Lotus on Friday morning, will take the reins.
For now, though, it is all in Dennis' hands and Button is confident he is the right man to put an end to the team's woes.
"This team, under Ron, has won multiple World Championships, back to the days of Ayrton (Senna) and Alain (Prost)," said the 34-year-old Brit.
"There's so much history of Ron in this team. He's a true racer, he's a true fighter, and he really has built this team up over the years.
"It's good for the team, good for Ron, that he has the chance to drive this team on again.
"Everyone here is excited about the challenge of 2014 with Ron in charge."
Dennis' biggest challenge will be turning McLaren's fortunes around and getting the Championship-winning team back onto the top step of the podium.
Last season McLaren failed to reach the podium for the first time in 33 years and Button admits that hurts.
"It hurt more, not winning," he added.
"Finishing third or fourth didn't make a difference. Winning is what I missed, and that hurt like hell.
"In the short term, the aim is to start the season with a reliable car - one that's hopefully competitive too.
"Beyond that, the aim is the same as it always is: to win the Championship. That aim never changes when you're with a team like McLaren."
As for the new rules, including the switch to 1.6-litre V6 engines, the 2009 World Champion says it could shake up the order.
"These are such huge changes that they'll have a massive impact on the competitive order, so we need to wait and just see how things shake out.
"I don't think anybody's anticipating the next few months to be easy, with every single person in Formula One sitting on the edge of the unknown.
"That's both exciting and unsettling in equal measure."
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