He added: “When I first stepped in way back in October, that was my main concern. Not having managed for some time, there are different ways of playing the game.
“That was my concern, not about destroying anything I might have done 20-odd years ago but being too old to be in this game. That is certainly a great sense of pride for me now.”
Celtic had been linked with Motherwell’s Jens Berthel Askou, but he is joining Toulouse, while Ferencvaros boss Robbie Keane has also been mentioned.
O’Neill says he has not held major talks with Celtic’s hierarchy about a potential role next season.
Asked if there will be any talks after the Scottish Cup final, the Northern Irishman said “I genuinely do not know”.
“I would not have expected anyone to say anything to me anyway,” he added.
“The response would have been we have to get Saturday out of the way and we’ll see what develops from there.”
