Australia earlier saying he was considering his options after being offered a contract. "If Usain wants to join that club and become a professional footballer, he should follow a journey pretty similar to other trialists, not withstanding for a minute the amount of marketing that somebody like Bolt - the fastest man in the world - can bring to Central Coast and to the broader A-League". The eight-time Olympic champion will have no shortage of suitors, having already demonstrated his huge commercial appeal.
It is understood Football Federation Australia has not contributed to the deal and was unaware of the pitch.
But O'Rourke said marketing components had been discussed with Bolt's potential contract.
Bolt began a trial with the A-League club in August, following short spells trying out in Germany, Norway and South Africa.
"But you have a look at our frontline today and you wonder if he could get into any of those positions, wouldn't you?"
On Sunday, it was reported Bolt's representatives had been sent a proposed contract by Mariners chief executive Shaun Mielekamp in recent days.
While the world outside Gosford seems to be following every detail of Bolt's bid to become a professional footballer, it hasn't managed to captivate one of the A-League's most experienced central defenders.
Bolt, who scored twice in his final trial game a couple of weeks ago, did not travel with the team for the 1-1 draw against Brisbane Roar and that's when news of his contract emerged.
"The FFA's been consistent that they won't fund him as a footballer", O'Rourke told SEN radio station in Melbourne.
But he added: "There were some conversations about contributions towards attendances - appearance fees if you like".
"Purists would said if you have money to invest, we don't think you should put it into a trials like Usain".
Mulvey said post-game: "I don't know anything about what you're talking about and that's God's honest truth".