But Germany's Sport Bild on Wednesday reports that an interesting character is coming with Kolles -- former Minardi driver and Dutchman Christijan Albers.
Albers, now 35, raced under Kolles' leadership at the pre-Force India team guises of Midland and Spyker.
Albers has also driven for Kolles in DTM and, most recently, in sports cars.
But he is not making an F1 driving comeback. Correspondent Bianca Garloff claims Albers will in fact be a boss of the Caterham team.
The Dutch newspaper De Telegraaf has the same story on Wednesday, claiming Albers will be Caterham's F1 chief executive.
It will be announced, the report said, in the "coming days", with Albers having already visited Caterham's Leafield factory on Tuesday.
Caterham has not commented.