McLaren's first win of the season only came after six rounds at the Miami GP back in May, but now the team has picked up two wins out of the last four races.
However, Stella insists that his team will pick their moments to play favourite to certain drivers despite Norris being the closest to championship leader Verstappen.
With that in mind, Stella seems keen to prevent any further team order controversy as they battle for the drivers' and constructors' titles.
A curious 'papaya rules' message was sent out on team radio in Monza, instructing the Norris and Piastri that they are free to race, but to give each other plenty of room.
Speaking before Sunday's race, he said: "I think when it comes to these conversations about being the number one, I don't think that's a good way of approaching racing.
“For us, we'd rather approach racing from fairness, integrity, and then see what comes, what sheds from this kind of approach.
"Whether on some occasions we need the team to take a certain direction in a 50-50 decision, or if we want to have a conversation with Oscar and say, like, ‘Oscar, would you be available to do this to support Lando chasing the World Championship?’, but it will always have to be a conversation before the race.
“We all should be in agreement because ultimately we chase and we are in the quest for a driver's World Championship as a team.
“There's nobody that goes his own way, and then the others will have to follow.
“So that's our style, which is I don't think it can be necessarily and simply summarised in like, we elect a number one, and then we work accordingly. I would like to keep this more articulated as a team, and then be more on a case-by-case situation.”