Eddie Howe had already spoken to potential transfer targets before his move to Celtic collapsed, according to Frank McAvennie.
The Hoops icon, speaking exclusively to Football Insider, is furious the club have wasted so much time in their pursuit for the former Bournemouth boss.
In a statement last week, the club confirmed Howe would not become their new manager due to reasons “outside both his and Celtic’s control”.
Howe had been a front runner for the vacant post since April, when this site revealed he had verbally agreed to take the position before having second thoughts.
A Celtic source has now told Football Insider that Yokohama F. Marinos boss Ange Postecoglou has asked for permission to be released from his contract so he can join the club.
The latest is that the Hoops are hopeful are tying up a deal in the coming days.
McAvennie, who lives in Glasgow and remains closely linked to Celtic, has heard Howe spoke to potential transfer targets before his move fell through.
“I don’t know what contacts the new guy has,” McAvennie told Football Insider correspondent Ben Wild.
“At least Eddie Howe has contacts in the English game. I was told by a Celtic source he was speaking to players already, ahead of coming in.
“That was part of the attraction with Howe, he could get those players in.
“I might be wrong. This guy might have contacts but we don’t know that. We don’t know anything really and that’s the problem.
“The Celtic players will have been expecting Howe too. So who knows how they feel now.
“Three months wasted, honestly, I just hope it’s all over soon.”