Speculation is ramping up that Haas will wave goodbye to one of its drivers.
Already struggling with the Pirelli tyre situation and in a new war with the team's own title sponsor, boss Gunther Steiner could not hide his fury after Silverstone.
"I don't want to blame one of them right now, but I don't like the situation," he told Ekstra Bladet newspaper.
Asked if the problem is the 'chemistry' between the Frenchman and the Dane, Steiner answered: "I don't know.
"I need to think about it with a clear head and find out what we do. That's my job. Because that's not acceptable.
"I don't have the solution now but I have to find out how we move forward. For me, this is a question of the team above the individual," he added.
It is believed the driver most likely to leave Haas would be Romain Grosjean, potentially to be replaced by Sergio Perez.