Former FIA president Max Mosley has warned that F1 is in a fight for "survival" partly because of the ineffectiveness of Jean Todt.
Mosley, who was a staunch campaigner for cost cutting measures, believes F1 is in trouble as costs are again soaring and are set to do so even more next season with the introduction of V6 engines.
"It's about the survival of Formula 1 if nothing happens, F1 will shrink," the 73-year-old told Welt am Sonntag.
"The problem is that the smaller teams struggle to find lenders to be competitive.
"As a result they are forced out of the sport at the end. They are forced to give it up. It's high time for a rethink."
Mosley, however, denied that Bernie Ecclestone's big chunk of the profit is the problem.
Asked whether a solution to the problem could be for Ecclestone to give the teams more money, he said: "The big teams get more money from Ecclestone and would spend yet more money.
"Proper [solution] would be a mandatory spending limit for all the teams - whether large or small. F1 would not change in substance if less money was spent by all the teams. It would only be fair to all."
And the former FIA president believes his successor, Jean Todt, is largely to blame for the "ineffective" cost-cutting.
"My successor Jean Todt was never a friend of cost cutting," he said.
"The FIA has not properly taken care of the problem of cost control. Formula One now has a big problem."