Ferrari's technical director Aldo Costa has relinquished his position as the team's technical director on the back of a disappointing start to the season, the Maranello squad announced on Tuesday.
Ferrari said Costa, who had been appointed technical director at the end of 2007, will "take on new responsibilities within the company".
The Italian squad also confirmed a new structure for the technical department, with Pat Fry becoming the director of the chassis side.
Production will be in the hands of Corrado Lanzone, while Luca Marmorini continues to be in charge of engine and electronics.
All of them will report directly to team principal Stefano Domenicali.
Ferrari endured a very disappointing Spanish Grand Prix last Sunday, with Fernando Alonso finishing a lap down despite having led in the early stages.
The Italian squad is currently third in the standings, but 110 points behind leader Red Bull.