Approximately four years and four months ago, Ange Postecoglou was named as the head coach of Celtic and tasked with restoring the Hoops place at the top of Scottish Premiership.
Appointed on 10 June 2021, the Australian boss entered the Celtic Park doors with the club in the midst of a crisis. Rangers had won the league in invincible fashion and a protracted move to install Eddie Howe as their new boss has fallen at the final hurdle. Big Ange - as he came to be known - was a supposed ‘second choice’. The rest, as they say, is history.
His success ultimately saw him poached by Tottenham Hotspur, where he went on to win the Europa League last trophy last summer before being sacked by the North London outfit the following week. A short stint at Nottingham Forest would follow, where he last just 39 days before being shown the door.
Linked to the vacant role at Celtic Park earlier in the week, following the resignation of Brendan Rodgers, there a plenty of supporters who would welcome his return, with many believing the bulk of his success in Glasgow came from his ability to spot talent and recruit them into a system which was very much his own.
But who were his best signings during his tenure at the club? With Kyogo Furuhashi, Matt O’Riley and Jota making huge improvements to Celtic during his time as head coach, it is hard to pick his best buy. However, here at The Scotsman, we tried our best to do so.
These are the 27 Celtic signing made during Postecoglou’s time at the club, ranked from worst to best.
9. Moritz Jenz
The Berlin born defender expressed his desire to remain at Celtic beyond his loan spell but ended up seeing his deal terminated the following January. He currently plays for VfL Wolfsburg, who he joined permanently two summers ago. | SNS Group Photo: SNS Group
10. Sead Haksabanovic
Agreed a move to Malmo this summer after falling out of favour under Brendan Rodgers. Firing a parting shot at Brendan Rodgers in his leaving statement on social media. Under Postecoglou though, he played 26 times as Celtic won the treble in 2023. Currently plays for Malmo FF in Sweden. | Alan Harvey - SNS Group Photo: Alan Harvey - SNS Group
11. Oh Hyeon-gyu
Was an able deputy for Kyogo when called upon, and looked to have a bright future with Celtic after signed a five-year contract upon his arrival. Was never able to hold down a regular starting spot, though, and left to sign for Genk in the summer of 2024. A regular starter for the Belgian's, he hit double figures in his debut season. | SNS Group Photo: Craig Williamson - SNS Group
12. Tomoki Iwata
Barely featured in the first half of the campaign after moving to the club last year but grew into the team and became a more influential figure during the latter half of the campaign, filling in for the injured Callum McGregor. Left to sign for Birmingham City last year, where he played a major role in their record breaking EFL League One title winning campaign. | Paul Devlin - SNS Group Photo: Paul Devlin - SNS Group