I think the mindsets are too different for that partnership to make sense.

Andretti has a stated goal of being able to fight for the F1 title in 5-6 years and had started throwing money and resources at the prospect of being on the grid. While they will eventually be bound to the cost cap like everyone else, they've already shown a willingness to use their financial standing to their advantage. They don't just want to compete. They want to win, and it shows.

Haas on the other hand have been on the grid since 2016 and had an F1 program at least a couple years before that. With several seasons on the books they've shown little willingness to do much more than survive in F1. They could be building their own cars, or Gene could have taken the initiative to add carbon fiber manufacturing to his company holdings. Anything but tread water and pray for a miracle as the Steiner Ship goes down.

It's hard for me to believe that combination of leaders would be anything but a headache for Andretti and a detriment to a team. I think his offers to buy the Haas team show Michael wants his own team, or at least wants to be the one running the show. Who knows what Gene wants out of all this.