Marseille president Jean-Claude Dassier wants Didier Deschamps to stay as coach next season.
OM are set to lose their Ligue 1 crown as they have slipped three points behind Lille having played a game more as the season reaches its climax.
While Dassier expressed regret at what had happened, he insisted he retains full trust in Deschamps.
"I have regrets," he told L'Equipe. "We had the potential to do better.
"I have no official announcement about Deschamps at the moment, but there is no reason I do not trust in him."
The French boss has a clause in his contract which would allow him to leave this year at a cost of three million euros, but Dassier does not see that being a factor.
"With Deschamps, this is not a concern," he said. "He will stay, I am firmly convinced. He will continue his time with Marseille. I will talk to him before the end of the month."
There is also speculation about the futures of Argentinian pair Lucho Gonzalez and Gabriel Heinze, with Dassier saying he needed to speak to the players to ensure they remain committed to the club.
"We must look at what happens with Lucho," he said. "I must ask him, looking into his eyes.
Of Heinze, he added: "I have my doubts. Like Lucho, I do not know his intentions. I do not want to retain a player against his will. We must ensure that they want to stay."