Seven years after knocking back the role, Ewen McKenzie has boldly claimed he's ready to take up the Wallabies reins - but does not believe he has placed extra pressure on incumbent coach Robbie Deans.

McKenzie was quick to hose down "conspiracy theories" on Tuesday after confirming he would step down as Queensland Reds director of coaching at the end of the 2013 Super Rugby season.

Besides claiming his announcement had "nothing to do with Robbie", McKenzie also brushed aside speculation that he had the Ireland job in his sights but did concede he would look overseas if the Wallabies option fell through.

McKenzie was offered the Wallabies position in 2006 following Eddie Jones' dumping but did not feel he was ready.

And when McKenzie did apply after John Connolly stepped down following the 2007 World Cup, the Wallabies reins were handed to Deans.

Deans is off contract at the end of the year but the Wallabies job may be formally advertised sooner rather than later if the Lions roar in June-July.

Not that McKenzie would admit it.

"I don't think it will put pressure on Robbie Deans at all," McKenzie said in Brisbane.

"Everyone gets bogged down on that - my competition is not with Robbie.

"The ARU runs the Wallabies. It's got nothing to do with Robbie.

"There's no conspiracy.

"I don't sit here saying I have a rails run or something is guaranteed. I am looking at that level, if nothing comes up I will have to look at something else.

"I would love to coach the Wallabies but I don't decide that."

McKenzie did however scoff at claims he was already in the running for besieged Ireland coach Declan Kidney's job.

Kidney will reportedly know his fate in three weeks after Ireland finished second last in the Six Nations tournament.

"I haven't spoken to anyone from Ireland and no one has spoken to me," McKenzie said.

"People love a conspiracy, that's what you blokes do.

"But it's really not that sinister.

"It's just about making a decision to allow the Reds to move forward."

McKenzie said he was prepared to sit out the next Super Rugby season if he did not land an international job.

He joined the second-last Reds in 2009 and guided the franchise to their first championship by 2011 while also claiming back-to-back Australian conference titles.

Richard Graham was appointed Reds head coach this year while McKenzie assumed the director of coaching role.

Meanwhile, Reds forward Radike Samo (knee) has already been ruled out of Saturday night's Suncorp Stadium clash with the Bulls while Liam Gill (knee) is in "some doubt".