Last weekend, the remarkable rise of one of the most respected young managers in the game continued as Kieran Mckenna's Ipswich Town clinched promotion to the Premier League.
Fermanagh native McKenna is just 37 years old.
Having retired when he was 22 due to a debilitating hip injury, he threw himself into coaching, making swift and impressive progress.
The former Northern Ireland underage international got his first break at Tottenham, starting off as their head of academy performance analysis before eventually taking over the club's Under-18s.
In the summer of 2016, he moved to Manchester United to take over their Under-18s. He excelled, earning promotion - along with Michael Carrick - to the first-team's coaching set-up under Jose Mourinho. He was retained under Ole Gunnar Solskjaer and later Ralf Rangnick before jumping ship to take the Ipswich job in December 2021.
The Tractor Boys were 12th in League One at the time. In his first two full seasons at the helm, McKenna has steered them to the top flight for the first time since 2002, working within a very modest budget and achieving success while playing a progressive, attractive brand of football.
If McKenna can establish Ipswich in the Premier League, he will be one of the most sought after managers around.
"I don't think people have quite taken in how big an achievement it is. To do back-to-back promotions is crazy, it really is crazy.
"I'm looking at this and, not to be negative about it, in the back of my own head I'm thinking, 'is Kieran McKenna going to be a flash in the pan, is he going to go on to be a brilliant coach and briliant manager?'. But you look at his CV.
"He clearly has a pedigree that all these people can't be wrong, can't be looking at him thinking, 'ah I'm not too sure'. (Mourinho, Solskjaer and Rangnick) would have wanted their own people to come in the door. The fact they kept him there means he's extremely good at his job and understands what he's doing.
"The fact he's stepped out now with Ipswich doing his own thing and gone and done back-to-back promotions, as an Irishman I'm thinking, 'please somebody persuade this fella to take the Irish job!'. But you wouldn't begrudge him a chance at having a swipe at the big boys in the Premier League."
Surviving among the sharks that swim in England's eye-wateringly big-spending top division will be treacherously difficult.
McKenna still has the rump of the squad that played their way out of League One, and will have seen the likes of Burnley, Norwich and Huddersfield Town come unstuck when attempting to stay up with a dedicated passing game.
Treacy hopes they don't abandon their approach, but warned McKenna will need to bolster his ranks ahead of the new campaign.
"I'm on the edge of my seat waiting to see how they do it," he said.
"I think they'll need a couple of players. I hope they don't deviate away from what they are. In the Championship they were excellent. I know Leicester won the league but they were the best team for me within it. They were tougher to beat, they scored the most goals and they were really good to watch.
"It's been really, really encouraging. Little things like that give you hope, don't they? When these big clubs, like an ex-club of mine Sheffield Wednesday, when they drop down the leagues you think it's going to be years before they'll ever find themselves back at the top of the tree but just take a look at Ipswich. It can turn around so quickly if you get the right man, the right environment and the right momentum.
"It's unbelievable stuff and already mind has switched to, 'can they stay in the Premier League next season?'. I hope they can."
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