Sam Schmidt believes Arrow McLaren SP-Chevrolet can join Chip Ganassi Racing, Team Penske and Andretti Autosport in the top echelon of IndyCar in 2020.
This season the squad will field changed driver line-up with Chip Ganassi Racing refugee Felix Rosenqvist teaming up with Patricio O'Ward, who is set for his second season at Arrow McLaren SP.
O'Ward, in his first full IndyCar season, drove the #5 AMSP-Chevy to a pole, four podiums and fourth in the championship, while Rosenqvist delivered a win at Road America.
With O'Ward beaten only by one driver from each of the 'Big Three' teams in IndyCar, Schmidt believes Arrow McLaren SP can tackle them head on.
"I wouldn't say we're going to replace any team in the top three but I do think we're ready to make it a Big Four," he told Autosport.
"We saw they were right there in front of us, and we were right there in the mix.
"We have really really intelligent people on board who have a great desire to race and to win and with the added McLaren components, we just have to execute.
"Kudos to Zak and everyone at McLaren because when COVID hit last year, there were staff layoffs but the seven full-time engineers assigned to the IndyCar program were kept on, and they managed to get what we wanted to do fully integrated with what they wanted to do. So we were able to hit the ground running once the season eventually started last year [early June].
"So we have all the tools to do the job. I feel we're finally on par with budget, we're finally on par with personnel, with pitstops, with equipment. It's going to come down to the fewest mistakes."
On the topic of pitstops, Schmidt said his team has set specific targets because they have become such a vital part of the race-winning equation in the NTT IndyCar Series.
He said: "There are a lot of components to the pitstop area. It's not only the crew; it's the equipment and the drivers. In 2017 and '18 in the pitstop competition at Indy, we were second, and in 2019 we won it.
"One of the goals of the team has to be to remain in the top three teams for pitstops. There are 12 or 13 guys who can win a race on any given weekend and it's all down to milliseconds, and so whatever can be gained on pitlane is going to help.
"The lack of yellows reflects the improved depth of talent on track but it also has meant most pitstops are done in green-flag conditions.
"So it's one of the top five things you have to get right if you want to be on the podium, let alone win."
Schmidt said he was thrilled to have Juan Pablo Montoya joining the squad in a third car for the Indianapolis 500, but also hoped to add him earlier, at the IndyCar Grand Prix on the IMS road course.
"We're trying to put together the funds to run Juan Pablo at the Indy Grand Prix to give him and us a bit of momentum," he said.
"It helps get the extra pitcrew some real-time experience in a race day environment, it gets Juan in tune with his engineer [Craig Hampson] sooner - and actually, it just supplies us with more feedback for the road course too.
"We're very excited about Juan Pablo joining the program. There's no other competitor in the paddock with a 40 percent win ratio at the Indy 500 and we believe we can help him make that 50 percent. He's coming back to it with a great attitude, he's lost some weight, and he's going to be such a big help to our full-time guys."
Meanwhile, with full-time drivers Rosenqvist, entering his third year in IndyCar but his first outside of Ganassi, and O'Ward, Schmidt admitted he has no idea who will emerge on top.
"I don't know if Pato's driving style has changed much since he was in Indy Lights," he said.
"He was always on the ragged edge then and yet didn't make many mistakes. He would get his car to the finish, knew when to attack and when to consolidate what he had.
"I think that's what we saw from him last year. He's exciting to watch - he's a unique individual in terms of his energy level - but he never gets so carried away that he throws it off the road.
"As for Felix, I think that the feeling he's being treated as an equal to Pato will be the confidence boost he needs. I have extremely high expectations of Felix because the guy's been a winner in everything he's done, across a wide variety of disciplines.
"He's bright, fast, talented, and now he knows he can win in IndyCar. Unfortunately, his win came by beating us [Road America Race 2 last year], but we've forgiven him.
"Felix is such an asset to our program given his diversity of experience, and right now I can't tell you who will come out on top out of him and Pato. I think we'll see it go back and forth from race to race."