Mika Salo has said that he thinks his countryman Kimi Raikkonen remains the best choice for Ferrari beyond 2016.
The Maranello team appear to be shopping around for alternatives to the Finn, with rumours that Sergio Perez and others are in the frame.
However, Salo told Finland's Ilta Sanomat newspaper: "I do not see any reasonable options.
"If I was the team boss, I would keep the same drivers because everything is running smoothly.
"With a new driver there is always a risk regarding how he adapts and things. Continuity is always the key to success."
Asked what he thinks of Raikkonen's performances so far in 2016, he answered: "Admittedly they have not been too good, but he still has the speed and the desire to win. That is what's most important."
Raikkonen currently sits fourth in the driver rankings.
