Niki Lauda believes Ferrari should sign Kimi Raikkonen as he is a driver who could "annoy" Fernando Alonso.
Although Ferrari team boss Stefano Domenicali recently gave his backing to Felipe Massa, there is no guarantee that the Scuderia will re-sign the Brazilian who has again failed to match his team-mate.
With just 67 points to Alonso's 151, Massa's days at Ferrari could be numbered with reports claiming that Raikkonen is in line to replace the 32-year-old.
And Lauda reckons the Finn, who won the 2007 Drivers' Championship with Ferrari, is the perfect driver to give the Italian stable the "boost" they need.
"Ferrari has a problem," Lauda told Bild.
"Kimi is someone the mechanics and engineers would immediately look up to. He could give the team a boost as Lewis Hamilton has done at Mercedes.
"And he would be in a position to annoy Alonso.
"If I were Montezemolo, I would pick Kimi."
As for speculation that Sauber's Nico Hulkenberg could replace Massa, Lauda believes the German needs another year in a midfield team before stepping up.
"Hulkenberg is not bad, but surely needs another year until he is established. And Ferrari do not have time," said the triple World Champion.
The 64-year-old also weighed in on this year's Championship, saying it is only a matter of time before Sebastian Vettel, who holds a 46-point lead over Alonso, wraps up his fourth Drivers' crown.
"Vettel is no longer fighting anyone. I am committing myself: he will be World Champion in Abu Dhabi, the third last race.
"His lead is already big enough after Spa, where he dominated even though the Red Bull was not really suited to the track.
"His best circuits are still yet to come. Red Bull won't be the favourite at Monza but on all other circuits he has the best car."