Ange Postecoglou's absence from Celtic this season marks a major shift from the stability the Glasgow club has enjoyed in recent years.
The Australian has left the SPFL to take charge of Tottenham Hotspur, as they seek to return to the race for Champions League football after a chaotic season which began under Antonio Conte last year collapsed midway through.
He has been replaced by Brendan Rodgers, with the Northern Irishman entering his second spell in charge of Celtic.
Rodgers has already had to deal with the departure of star winger Jota, who has joined the mass movement to the Saudi Pro League - Rodgers himself revealed he turned down an approach from the same destination.
With Celtic defending all three domestic trophies, and looking to push to the Champions League knockout stages, they will need to hold on to their remaining attacking talent - but one pundit has now suggested that Postecoglou could return to his old club to snatch Kyogo Furuhashi as a potential replacement for Harry Kane.
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Celtic star suggested as potential Harry Kane replacement at Spurs
Since arriving at Celtic, Japanese forward Kyogo has been a revelation and was the club's top scorer in all competitions last season with 27 goals in the Scottish Premier League, and 34 goals in all competitions.
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Though Kyogo has yet to play at a level higher than the SPFL, former Chelsea player Pat Nevin believes the 28-year-old Celtic player would be an ideal replacement for Harry Kane, should the Englishman's move to Bayern Munich be confirmed.
Speaking to Sporting:Post, Nevin said:
The obvious place for him to go there would be Spurs. If Harry Kane goes, they will need someone who can link up play and is a natural goalscorer. Ange would have worked with him before, so he will know all about him.
Kyogo is not the same level as Kane, and he is slighter than him. Kane is world class, while Kyogo would still have to show that in a top league. If you give Kyogo the chance to score goals though, he will score and Ange will know that.
I would like to keep seeing him in Scotland but I would not be shocked if he went to Spurs.
Kane is expected to sign for Bayern Munich, after a fee was agreed between Bayern and Spurs earlier this week. An unusual Friday morning has reportedly seen Kane grounded at London Stansted Airport, as he waits for final confirmation that the move will go ahead.
Nonetheless, a swift replacement will be crucial for Spurs if Ange Postecoglou is to bring them back to Europe's top table, and Cetic Kyogo is not the first name linked with a move to White Hart Lane.
The departures of both Kyogo and Jota would leave a major hole in Celtic's attack - though Marco Tilio and Yang Hyun-jun have both signed for the Bhoys during the summer transfer window, and Ireland's Mikey Johnston has returned to Glasgow after a loan spell with Vioria Guimaraes.