Romain Grosjean believes Haas can benefit from the raft of changes at Toro Rosso to overhaul the Italian team in the championship.
While Grove-based Williams look set to secure fifth place in the Constructors Championship, positions six, seven and eight remain up for grabs with just two races to go.
Heading into Sunday’s Brazilian Grand Prix, Toro Rosso lead the way of that mini pack on 53 points, five ahead of Enstone’s Renault and six in front of Banbury’s Haas.
But the Faenza-based team, who have only scored once in four races and have changed both drivers this season, are there for the taking, according to Grosjean.
The Haas top scorer said: “I think out of those teams, Renault is the faster one. They’ve got a really good car through to the end of the season.
“They’ve had a bit more of a difficult time in the races, which has allowed us to close the gap and keep them in sight [but] Toro Rosso is the one we can try to go for.
“They’re not performing better than we are, and they’ve got less experience among their drivers, so that should help us.”
Team-mate Kevin Magnussen called for focus ahead of the penultimate race of the season in Brazil.
The Dane said: “It’s only one point now to Renault for seventh and it’s only six points to Toro Rosso.
“It’s extremely close and anything can happen in these last two races.
“We just need to be on top of everything and get everything out of it that we can.
“It’s not going to be easy. Those teams are doing well and they’re tough competitors.”