Vitaly Petrov is a pay driver. A good one, but a pay driver nonetheless and if his friends in Russia do not deliver the cash for him to continue in F1 in 2013 then Caterham will take another driver who can provide what is needed. The second driver role is not that important. At the moment Vitaly does it well, but there is no room for sentiment in F1. If the money does not arrive there are others who can do the job. They may not be as good as Vitaly, but the standards are pretty high these days. The team needs a solid number one, with drive, passion and experience.
Despite a fair amount of waffle about his future, Heikki Kovalainen is still the obvious candidate. He will be lucky to get an offer from elsewhere. His speed and experience are of value to Caterham, but he has not outshone Petrov as much as one might have expected. There are other options out there for the ride if Heikki tries to pay hard ball, so he needs to have reasonable financial demands and be keen to stay where he is.