The former Sheffield United chief executive, who fronts a group which is also thought to include controversial former Newcastle United chairman Freddie Shepherd, has bid £8.5m for the club and is poised to be named preferred bidder.
Supporters have already expressed reservations about the deal, not least because Green reportedly had dealings with a firm connected to disgraced owner Craig Whyte, but McCoist said last night he had spoken to former team-mate Nigel Spackman, who worked under Green at Bramall Lane, and was at least prepared to keep an open mind.
"That [the Whyte connection] would obviously be a concern to any Rangers supporter really, in the current climate, but it is not for me to say because I don't know these guys," said McCoist. "It is wrong for me to comment on anything other than facts that are available and things that I know. I can understand Rangers fans might have concerns, they are still hurting about the way that the club has been run, certainly over the last period.
"I did speak to Nigel, but to be fair I spoke to a few people about the potential purchaser," the Rangers manager added. "He is part of a consortium and if things push forward I would obviously be looking to speak to Charles Green as soon as possible. I certainly don't have a preferred bidder, that is not my job. My job is just to talk to all the interested parties. Whoever is handed preferred bidder status, I would be more than happy to meet them."
Brian Kennedy said on Friday night that administrators Duff & Phelps would have "blood on their hands" should the club lurch into liquidation, but McCoist – who also spoke to Kennedy yesterday morning – felt joint administrators Paul Clark and David Whitehouse were being fair and open-handed.
"I would hope so," McCoist said. "If not you are accusing them of something which would be outrageous. I know the administrators are getting their fair share of heckling from certain areas, but all I know is that they are keeping me posted and trying their best for the club and the creditors."
This has been another chastening week for Rangers, with the SFA publishing the reasons behind imposing the 12-month transfer embargo in the starkest terms on Friday. The damning report pointed fingers at Sir David Murray, Donald Muir, Lloyds' "man on the board", financial controller Ken Olverman and even John Greig and John McClelland for not blowing the whistle on concerns about Whyte, and McCoist hinted it may force him to reassess a few opinions. "I will be keeping my views to myself, but I will read the whole thing," he said. "But it certainly looks the wrong decision 14 months ago. It's arguably been the worst year in the club's history."
The club's appeal will be heard on Wednesday, however, and McCoist feels the timing of the publication was far from ideal. "The timing of it is very strange," he said. "Whether it [prejudices the appeal] or not there's probably only the three men can tell you. You would hope it wouldn't, but you would have to say the timing of it, at best, would be questionable."
Whether or not today's meeting with St Johnstone is the club's last ever fixture, it will be the end of a traumatic season, and an era. With players set to return to their existing contracts on June 1, the most optimistic outlook for McCoist is to spend an anxious summer wondering which players will be there when pre-season starts on June 28.
"I have already spoken to them as group, but I will speak to them briefly after the game," he said. "I can't tell them anything definite in terms of a new purchaser, but we are, I believe, really, really close. We have got to be positive. As soon as we hear anything you can bet we will give you a call and hopefully it will be good news."
As for his own plans this summer, he will make sure he gets out of the Glasgow pressure cooker. "I will be drinking cocktails out of a goldfish bowl with a golf brolly in it," he joked.