Alfa Romeo team principal Frederic Vasseur has described Formula 1's current financial structure as "unsustainable" for more than half of the grid.
The new regulations that will be introduced for the 2021 season are set to include a budget cap, aimed at allowing the field to get closer together.
Vasseur has called on F1's commercial rights holder Liberty Media to go ahead with the proposed budget cap, but warned that it's unlikely to find common ground between the ten teams.
"The issue is that we are 10 teams around the table with completely different approach, completely different structure, different budget," he told RaceFans.net.
"I don’t want to speak about competitiveness but at the end you can have Haas and Renault, for example, they are more or less at the same level but with a completely different approach.
“And if you listen to everybody I think that you will never find a compromise because you won’t find something fitting with every single company. At the end of the day, they have to act. To take decisions.
“Honestly it’s good to listen to everybody but at one stage we have to take decisions and to take responsibilities.
"For sure some teams won’t be very happy but you have to find the best, not compromise, but the best direction for the series.
“It has to be the start honestly because you know that the situation is just unsustainable for at least six teams on the grid.
"I think that we, the owners, the shareholders of the teams are doing their best effort to survive until [the] 2021 change. It has to change.”