
But Silverstone based Force India's boss and co-owner Vijay Mallya on Tuesday said the technical team "is still very much intact".
"Mark will stay with us until April 2011 and we will, in due course, announce a structure that will take us to the next level of performance," Vijay Mallya said. "I'm very comfortable with where we are as a team and where we are going."
The Indian billionaire also played down the impact of Force India's legal action against Lotus, Mike Gascoyne and the Italian wind tunnel Aerolab.
"The structure and any off track events are for me to worry about, so the team can get on with doing what they do best at the track," he added.
Moreover on Tuesday, Mallya publicized that Vitantonio Liuzzi will switch to a different VJM03 chassis at this weekend's Canadian GP. "Tonio will also revert back to the chassis used for the first four races as we continue to look into why he's got the lack of grip," he said.