Mackay's position at the club is looking increasingly tenuous after he was told to resign or he will be sacked by club owner Vincent Tan.
And it would appear that Tan, who is flying in to the country on Friday, is determined to follow through with his threat with the news that they are actively seeking a replacement for Mackay.
Tensions have been running high between the pair after Tan publicly criticised Mackay for saying he was hoping to sign three new players in the January transfer window, with the chairman accusing his manager of unfairly raising the expectations of the club's supporters.
Mackay was absent from the club's Friday press conference ahead of the weekend's game at Liverpool after it emerged that Tan had emailed the Scot on Monday, outlining his grievances at length and issuing an ultimatum regarding his job.
However, Mackay is believed to have taken training on Friday and will fly to the north-west with the squad ahead of the weekend's game.
In his email, Malaysian businessman Tan was allegedly critical of Mackay's signings, style of play, results and overall performance as a manager.
He is also believed to be unhappy at an overspend on players during the summer, with £15m more being spent than the originally slated budget of £35m.
In Mackay's absence, assistant boss David Kerslake told reporters at the conference that the manager was still in charge, adding: "No one has said any different to me, everything has been as normal. Players have got on with their jobs.
"Without being boring it has been a normal week."
When Kerslake came in for sterner questioning on Mackay's position a club spokesman stepped in to say: "Malky Mackay is unavailable to speak to the media, the assistant manager is here."
Mackay insisted earlier this week that he would not walk away following a fresh rebuke from Tan, who said he would not receive 'a single penny' of transfer funds in January.
Mackay said: "I will not resign from my post. I was surprised obviously, but at the same time my job doesn't change.
"It would be wrong of me to walk away from a job because the owner doesn't want to give me more money in January."
The 41-year-old Mackay's future has been under scrutiny since Tan removed his head of recruitment Iain Moody in October amid suggestions of a summer transfer window overspend, an accusation denied by the coaching duo.
Mackay took Cardiff into the top flight at the end of last season for the first time since 1962.
They are currently 15th in the Premier League table, four points clear of the relegation zone.
I'm hoping for a funny appointment at least, I mean, surely no serious candidate would be interested in joining this basket case club?- markarogers