By Frank McAvennie

20th Sep, 2021 | 6:00pm

McAvennie fumes at 'mad, behind-the-scenes' Celtic issue that's the real 'big problem'

Frank McAvennie claims it is “a joke” that Ange Postecoglou is yet to bring his own backroom staff to Celtic.

The Parkhead icon, speaking exclusively to Football Insider, reacted to recent developments at the club.

The Hoops lost their sixth game of the season in all competitions on Sunday, leaving them four points behind Rangers at the top of the table.

Postecoglou did not bring his own staff to Parkhead when he took the reigns after John Kennedy’s brief spell in charge.

He is also still yet to find a settled 11 amid several off-field developments.

On 10 September, Celtic announced chief executive Dom McKay had departed the club and cited “personal reasons” as an explanation.

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Gordon Strachan also rejoined the Hoops on a three-month consultancy project earlier this season.

McAvennie remains baffles at these off-field developments and insists they are harming Postecoglou’s efforts.

“I don’t care what anyone says, this is the big problem,” McAvennie told Football Insider correspondent Ben Wild.

“Postecoglou still doesn’t have his own team in. He has to have that there.

“I said he needed his own guys all summer. I can’t believe that, as a manager, surely he must have people he wants to bring in.

“I really don’t get it. I don’t think Strachan was his pick, what’s going on? It’s a joke.

“All this mad behind the scenes stuff is not helping anything on or off the pitch.”

The Hoops are next in action against Raith Rovers on Thursday in the Scottish League Cup.

Postecoglou will be looking to end his side’s mini winless run with a convincing win over lower league opposition.

In other news, Whelan: Celtic have found their new Scott Brown amid ‘massive dressing room’ verdict.