Lewis Hamilton can become world champion again at Mercedes, says BBC Formula 1 chief analyst Eddie Jordan.
Hamilton, 27, is to leave McLaren and race for the German manufacturer from next season, in a move first revealed by Jordan at the start of September.
"Hamilton has ability and global presence," Jordan told BBC Radio 5 live. "I do not see why he cannot win the world title with Mercedes."
Hamilton became the then youngest world champion in Formula 1 history in 2008.
Since then, though, he has been unable to secure a second title.
In 2009 the Briton won only two races on his way to finishing fifth.
Hamilton finished fourth and fifth respectively in 2010 and 2011, and his retirement from last weekend's Singapore Grand Prix left him in fourth place, 52 points behind leader Fernando Alonso of Ferrari, with six races remaining.
Mercedes have struggled to repeat the success enjoyed by the then world champion Brawn outfit they bought to enable their return to the sport as a works team in November 2009.
It is believed they successfully sold themselves to Hamilton on the basis that new chassis and engine regulations should favour them in 2014.
Jordan drew comparisons with another former world champion who went on to revitalise a big team's fortunes.
He said: "Michael Schumacher transformed Ferrari when he went there, and they were certainly lacklustre before he arrived. I think Hamilton will make a big, big effort at Mercedes."
The move ends an affiliation with the Woking-based outfit for Hamilton which stretches back to 1998 when he became the youngest ever driver to secure a Formula 1 deal aged 13.
Jordan continued: "It is a big shock for Formula 1 in the context that most people felt he was a lifer to McLaren. He was nurtured and brought on by Ron Dennis and the world at large felt that was where he would end his career.
"This will have been a very big decision for Lewis because of the family context. He has been in there since 13 and probably felt so comfortable.
"However, there were some things niggling away and some little demons in there getting into his head. There have been a number of little items unfolding that gave me the impression things were not quite as we thought or hoped at McLaren.
"His new management team probably were very much behind this because they want to make him into a global name just like they have done with David Beckham and the Spice Girls."
Mercedes have agreed a more financially lucrative contract with Hamilton than the one offered by McLaren, but BBC Radio 5 live commentator James Allen said it is wrong to believe the decision has been motivated by money.
He said: "He is not getting into a faster car at this point, but it would be wrong to say it is all about money.
"They will give him more money and more freedoms to make money outside his contract, but history in F1 tells you that you build a team around proper managers and engineers, then the last piece of the jigsaw is the driver.
"There have been signs Hamilton's relationship with McLaren was coming to an end, and if he had signed a new contract with McLaren it would have been like a couple staying together for the children."