Leading Tottenham to their first major cup success in 17 years - the 2024/25 Europa League - wasn't enough to stop Daniel Levy from sacking him shortly after that triumph back in May.
Levy out, Ange back in business
And here we are just a few months later, and Levy has left the North London outfit whilst the Australian has been announced as the new man in the Nottingham Forest dugout.
Had things been different, Ange would have been leading Spurs into the Champions League, though he will oversee a European campaign at his new club (albeit in the Europa League), giving him a chance to win back-to-back titles with different clubs.
Forest fans will certainly have to brace themselves for a much more attacking team this season.
READ MORE: Stan Collymore brands Forest's sacking of Nuno 'a disgrace'
Where Nuno Espirito Santo got the best out of his squad by playing a counter-attacking game brilliantly, Postecoglou's modus operandi has always been about taking the game to the opposition, come what may... except in the Europa League final, as it were.
Results were Postecoglou's undoing at Spurs
Football is all about results, however, and whilst injuries obviously played a part in Tottenham's poor Premier League campaign in 24/25, the refusal to play a way that was more in-keeping with grinding out a win is ultimately what undid all of the good work that underscored Ange's beginnings in North London.
Though the 60-year-old has extensive managerial experience, it's more pertinent to highlight his time in England. For a start, Postecoglou won 47 of his 101 games in charge domestically and in Europe.
29 of those were at the Tottenham Hotspur Stadium, where his name was sung heartily week in and week out, at least until Spurs started slipping down the English top-flight last season.
184 goals scored would generally be seen as a positive in terms of attacking intent; however, when coupled with the 157 conceded, it doesn't make for great reading.
A win percentage of 51.2% in his first season dropped significantly to 41.5% in 24/25, though this was against the backdrop of that Europa League success - granted, a success that came despite Postecoglou being without a number of starters and experienced heads for long periods of the campaign.
Nuno's brilliant 24/25 should be recognised
By contrast, Forest had one of their most successful recent seasons under Nuno, who should be rightly acclaimed for getting Forest within a whisker of the Champions League with the squad that he had available.
What shouldn't escape anyone's notice, however, is that the Portuguese only managed a win percentage of just 38.4% during his time at the club - and a best showing of 46.3% last season.
Even Steve Cooper's reign at least saw him end with a slightly better 38.9% overall win percentage.
What's perhaps even more worrying is that of the last 13 managers at the club, since 2014/15, only Steven Reid (one game), Aitor Karanka (52 games), Dougie Freedman (57 games) and Nuno (71 games) have ended their tenures with a positive goal difference.
In Nuno's case, his side scored just six more than they conceded (106 and 100).
Even though the club can now boast the likes of Elliot Anderson, Morgan Gibbs-White, Callum Hudson-Odoi, Oleksandr Zinchenko and others in their ranks, there clearly has to be a change in the way that the Midlands-based club approach games - taking matches to opponents rather than sitting back and looking for openings.
Marinakis must take a back seat
It's about getting players to think differently, to alter what's been pre-programmed within their psyche and to have them playing with confidence and without fear.
Whilst that's certainly not beyond Postecoglou, and will almost certainly be something he'll want to implement as quickly as possible, it isn't going to see success happen overnight.
Firebrand owner, Evangelos Marinakis, will therefore have to buy into those new concepts and ideas too - and not look to bring about change for change's sake.
Anderson is a perfect example of the type of player who is an ideal fit for the new manager's expected system.
A formation that's normally a 4-4-1-1 or 4-3-3, that allows players to press aggressively when not in possession, and which gives them some versatility when they have the ball, allowing them to dominate.
There's a definitive style to a Postecoglou side, and it's that identity which everyone connected with the club has to get behind and support.
Spurs' loss is Forest's gain?
With the right signings in January and injuries permitting, there's every reason to expect the Australian will get it right at the City Ground. Indeed, what's Spurs' loss could very much become Forest's gain.
