RomeArrigo Sacchi was a revolutionary who came from nowhere to lead a great AC Milan side to back-to-back European Cups in 1989 and 1990.
It is a feat that no coach has achieved since, but that Zinedine Zidane will match if he retains the Champions League trophy with Real Madrid in Saturdays final against Juventus in Cardiff.
A recent poll on the website of Corriere dello Sport saw Sacchis Milan named as the greatest Italian team of all time by internet users and the second-best side behind the Grande Torino that dominated calcio in the 1940s before being wiped out in the Superga air disaster by a panel of 10 coaches.
Sacchis team dominated Europe with a new kind of football, comprised of pressing, strength, speed and ideas, according to the Rome-based sports daily.
Thirty years after Sacchis appointment as Milan coach, his precepts no longer seem so revolutionary: a 4-4-2 system with zonal marking, the absence of a libero, aggressive and constant pressing, pace, the offside trap, intensive training sessions
But all that was revolutionary when Silvio Berlusconi hired him in 1987, despite Sacchi having never been a player and only coached in Serie B with Parma.
In a conservative Italian game where the best path to success was via a defensive style, Berlusconi and Sacchi added a new dimension by introducing a more seductive way of playing. Win, convince and entertain, is how Sacchi sums up his Milan teams outlook.
Nevertheless, the man who would become known as The Prophet of Fusignano first of all had to convince those who doubted him largely because he had never played at any notable level.
I never realised that to become a jockey you needed to be a horse first, Sacchi joked. But Berlusconis support was crucial at the beginning.
The story goes that before an important match away to Verona, when the new coachs methods had yet to convince his new side, the club president made it clear to every Milan player: Between the team and Sacchi, I take Sacchi. He is staying. Im still not sure about you.
It worked and Sacchi was able to put in place his methods, ably helped by the likes of Franco Baresi, Carlo Ancelotti, Paolo Maldini, Roberto Donadoni and the Dutch trio of Ruud Gullit, Frank Rijkaard and Marco van Basten.
Last year he was overtly critical of the work done by Allegri at Juventus, saying: The only verb they can conjugate is to win. That might be enough in Italy, like for Rosenborg, who always win in Norway. But not in the Champions League.
On Saturday, then, Allegri has a chance to both prove Sacchi wrong and allow him to remain the last coach to win consecutive European Cups. Otherwise, Sacchi will have to pass that honour on to Zidane.