The oldest, most glamorous and successful team in the sport, finalist last year, are fifth in the championship with Sebastian Vettel and Charles Leclerc pushed into a more midfield battle.
Ferrari said in a statement the team would have a more focused and streamlined chain of command, with the heads of each department being “empowered to achieve their goals.”
Ferrari said Enrico Cardile will lead a new performance development department.
The other roles remain the same, with Enrico Gualtieri supervising the powertrain, Laurent Mekies remaining sporting director in charge of track activities and Simone Resta in charge of chassis engineering.
“We are making changes to the technical side of the organization in order to accelerate design and development on the performance front of the car,” said manager Mattia Binotto.
“A change of course was necessary to define clear lines of responsibility and work processes, while reaffirming the company’s confidence in its pool of technical talent.
“The department headed by Enrico Cardile will be able to count on the experience of Rory Byrne and senior engineers like David Sanchez. It will be the cornerstone of the car’s development.
South African designer Byrne, 76, was a key figure in Ferrari’s golden age at the turn of the century with seven-time champion Michael Schumacher in a team led by Jean Todt with Ross Brawn as technical director.
Ferrari has not won a driver’s title since Kimi Raikkonen’s success in 2007 when their last manufacturer’s title dates back to 2008.
Vettel, quadruple world champion with Red Bull, leaves at the end of the year with the Monegasque Leclerc face of the future.
Binotto said Ferrari must “make a decisive change, raising the bar in terms of the responsibilities of department heads”.
“We have said it many times, but it bears repeating: we have started to lay the foundations for a process which should lead to a new sustainable winning cycle,” he added.
“It will take time and we will suffer setbacks like the one we are currently experiencing in terms of results and performance.”