When Renault confirmed Ocon would join Daniel Ricciardo in its line-up for 2020, Hulkenberg said many factors had played a part and suspected the team’s slump in form this year tipped it “over the edge”.
“I’ve been here three years now,” Hulkenberg explained. “2017 was good progress, 2018 was still good.
“This year we have a very tough year. And with the difficult year we’re having there’s some WISh for change, or something has to give, and it contributes a bit to that and leads to this decision.
“[The financial side] was in line and we were more or less in agreement.
“But different drivers in different stages of their career, there are different commercial things and there’s also the nationality factor in here.
“It’s a bunch of things. The difficult season we’re facing tips it over the edge a little bit.”
Explaining the decision to replace Hulkenberg with Ocon, who is 10 years younger than the German, Abiteboul said: “When you make a decision like that you don’t just look at pure pace.
“You need to look at the collective dynamic and there is a dynamic that we need to restart, reset, to the team.
“Probably also we need to project ourselves into the medium- and long-term future, not just 2020, but 2021 and what is happening to his teammate [Ricciardo] and so on and so forth.
“There is all of that, and in particular the collective dynamic, and what probably Esteban can bring to the team.
“[He is] probably starving for racing, being super-happy to come back into racing because he has been out of a seat for a year.”
He lost his Racing Point drive for 2019 after missing out on the Renault seat, and Abiteboul said that another factor this time around was the confidence that Hulkenberg would not be sidelined in the same way.
“It is important to say that we have – not a certainty, because we cannot be certain of anything – but a very high chance that Nico will be able to continue his racing career,” said Abiteboul.
“So, just like it counted for us with Carlos [Sainz] last year, so too it counted for us this year with Nico.”
In crediting Hulkenberg’s contributions to the works team in their three seasons together, Abiteboul admitted it was a “difficult call” to drop him.
“With Nico’s contract coming to an end at the end of this season, a decision had to be made about whether we wanted to stay put with our driver line up or include a bit of a change,” said Abiteboul.
“It has been difficult because we all love Nico in the team. He has been instrumental to the progress that we have made – we have our challenge, struggles this season but last year he has been instrumental in securing P4 in the championship [in 2018].
“He had a good seventh place in the drivers’ championship [last year], which is clearly the best that we can target.”