Andretti is the highest profile contender of the teams that have indicated an interest in joining the grid, and an answer is expected soon on whether any of the contenders have been successful.
However, the incumbent teams who face a dilution of their future income have made it clear that any new entrant has to bring something valuable to the table and that benefits the series, which is a view echoed by F1 boss Stefano Domenicali.
Andretti has bolstered its bid by hooking up with Cadillac to badge a Renault power unit, but Vasseur insists that pitching the project as all-American is not enough.
"My position is that the 10 teams that made huge efforts even when it was tough to be on the grid, and to survive for some of them, now that if we have to welcome another team, it has to be for mega good reasons," he said.
"The fact that you have an American team is not a good reason. Because for me, first, we have an American team, thanks to Haas. And the second one is that if you want to be at the top in the country, it's a matter of drivers.
"Have a look on what's happened in the Netherlands. It's the biggest success of the world today, and they don't have a team, they have Max.
"I think first, we have a good success in the US. If you want to increase the success in the US, it's more a matter for me to have an American driver. It's not about the team."
Source: Autosport