Ferrari CEO and chairman Sergio Marchionne says there is no need for an overhaul of the Formula 1 team despite its recent failures that have seen Mercedes to surge clear at the front of the field.

Mercedes wrapped up its fourth consecutive constructors' title on Sunday as Lewis Hamilton won the United States Grand Prix, with the Briton also moving to within a top-five finish of the drivers' crown.

Ferrari's Sebastian Vettel was left to settle for P2, leaving him 66 points behind Hamilton with just 75 left to play for following a dramatic turnaround in fortunes that saw him retire in Singapore and Japan.

Pressure has been building on Ferrari team principal Maurizio Arrivabene in recent weeks due to the on-track struggles, but Marchionne stressed when speaking to reporters after the race in Austin he was not looking to blame one person.

"I don't think we need to overhaul the team. Both Mattia [Binotto] and Maurizio have been involved in this process," Marchionne said.

"Picking one or the other is a bit idiotic. They were both at the table when the operation was going on and technically I'm involved too, I was the chairman. But that's not going to solve the issue.

"We need to win, that's the more important thing. I don't think it's attributable to a single guy. Processes may have not helped and those things are being addressed."

Marchionne explained that Ferrari is tightening up its processes off the track to ensure the technical issues that arose in Malaysia and Japan do not occur again, having dealt a serious blow to Vettel's title hopes.

"With the exception of the technical failures we've had, which are quality driven, everything else was just a fluke and it happened. The likelihood of us repeating those errors is hopefully very small," Marchionne said.

"We've made one change to the organisation by bringing in someone who's got experience on the quality side to try and strengthen our skills. The rest of it I think is within the way in which we manage.

"I think we'll be alright, I don't think we need to overhaul the team, I don't think we need to make changes.

"This team knows how to win and knows how to get it done, just give them the space."