Now, Bonucci is gathering his observations from Allegri and the other coaches who have influenced his career, as he sees himself fulfilling the same role in the future.
“My dream is to become an important coach of a great team, possibly Juventus,” he told Corriere dello Sport.
“So, I’m observing and putting aside all the secrets of the various coaches that I have had to try to get the best out of myself.”
Bonucci, who has won eight Serie A titles with Juventus, reflected on his fallout with Allegri, which culminated in the veteran defender being dropped for a Champions League tie against Porto in February 2017.
Now that he and the manager have settled their differences, Bonucci acknowledges it was a mistake for him to leave the club last summer.
“With clever and mature people, it becomes clear: you shake hands, and look together towards the same goal,” said Bonucci.
“A talent all coaches have is intelligence, and this allows him [Allegri] to know how to manage a dressing room as important as that of Juventus.
“Leaving was a difficult choice, taken in a moment of anger. This experience has taught me that in times of anger, instinct can make us make the wrong choices.
“Things had happened during the last four months at Juventus that had touched me at the level of pride, on a personal level, intimately, and I was not good enough.
His love for Juventus is clear, however, as he says playing for the club gets the best out of him.
“Only here, wearing this shirt, can I express my potential on the field and off it.”
Cristiano Ronaldo watched on from the stands as Paulo Dybala hit a hat-trick in Juventus’ 3-0 win against 10-man Young Boys in the Champions League.
In the absence of the banned Portugal superstar, Dybala delightfully volleyed home a trademark searching long ball from Italy centre-back Leonardo Bonucci’s to open the scoring in searing fashion in the fifth minute.
The lead was then doubled when the Argentina forward followed in a spilled low shot from France workhorse Blaise Matuidi past the half-hour mark. A first treble at Allianz Stadium from him was then completed with a tap-in from Colombia winger Juan Cuadrado’s centre after a smart move.
Swiss Super League champions Young Boys, predictably, offered little further resistance as Juve eased to two wins from two games in Group H. Their night was made even harder when Guinea centre-back Mohamed Ali Camara picked up two yellow cards in three minutes to be dismissed near the death – the last for a flailing arm in Dybala’s face.
Wojciech Szczesny – 6: Quiet night for the Poland goalkeeper. Faced just one shot on target.
Andrea Barzagli – 6: The veteran coasted through the evening as part of the back three of old.
Leonardo Bonucci – 7: This was the Bonucci from his first spell in Turin. Consummately cut out any threat and produced an assist of rare quality for Dybala’s opener. Missed a second-half sitter with his head.
Mehdi Benatia – 7: Was allowed to charge out and try to break through the lines. Positive display. Led way with two tackles.
Juan Cuadrado – 6: Inconsistent as ever. Came up with the assist for Dybala’s last strike.
Miralem Pjanic – 6: Did the simple things well, without really shining. Easy as you like, for the matchwinner last time out against Valencia. Pumped in a leading five crosses.
Blaise Matuidi – 7: Smashed in a shot to allow Dybala to double up. Came off at half-time, however.
Alex Sandro – 7: A steady presence in Young Boys’ half of the pitch. Only one accurate cross from three attempts will disappoint.
Federico Bernardeschi – 6: Never burst into flames in the hole. One darting run in second half nearly produced an electric goal.
Paulo Dybala – 8: This could be the moment when Dybala’s 2018/19 truly begins. Blossomed in absence of Ronaldo, with two predatory strikes following an eye-catching opener. Had previously scored once in his last 17 UCL matches.
Mario Mandzukic – 6: Very much the foil for Dybala. Had no attempts on goal before being substituted on 77 minutes.
Emre Can – 6: Kept things tidy during the second half.
Sami Khedira – 6: The Massimiliano Allegri-favourite ensured Young Boys would not come back into proceedings.
Moises Kean – N/A: Correct offside flag denied Italy youth striker a first Champions League goal.
Juventus won their crunch clash against Napoli, beating last season’s runners-up 3-1 at home thanks to two goals from Mario Mandzukic and one from Leonardo Bonucci, with all three set up by Cristiano Ronaldo.
The win extends Juve’s lead at the top of Serie A to six points, a decisive blow in the title race even this early in the season.
Here’s a look at how the players rated.
Wojciech Szczesny 7 – Made some crucial saves, including one when his defence had left him completely exposed, but his one-on-one stop denied Jose Callejon an equalising goal.
Joao Cancelo 7 – The Portuguese right-back was solid both in defence and attack, continuing his fine start to his Juventus career.
Leonardo Bonucci 6 – Was entirely at fault for Napoli’s goal, playing a poor pass out from the back. Scored a clinching third goal, but looked shaky at times otherwise.
Giorgio Chiellini 7 – A typical Chiellini display, as the Juventus centre-back was everywhere, putting out fires in defence and often finding himself in good attacking positions.
Alex Sandro 8 – Sandro’s attacking prowess sometimes detracts from his defensive ability, but this was a game where the latter came to the fore. Put in one goal-saving clearance and was solid throughout.
Emre Can 6 – Still looks unconvincing as a Juventus player, as he looked like the weakest link in his side’s midfield. His passing needs to improve for a side that is often in control of the ball in domestic games.
Miralem Pjanic 7 – A characteristically assured display from the midfielder, who helped Juve control possession and win the battle in the middle of the park.
Blaise Matuidi 6 – Good defensively, but wasteful from an attacking sense as a few of his attempts to link up with players like Ronaldo and Dybala failed thanks to poor touches or decision-making.
Paulo Dybala 5 – Struggled to have an influence on the game, blazing one shot wide when the Dybala of early last season would have at least hit the target. Still looking to find top form.
Mario Mandzukic 9 – Enjoying a run as Juve’s lead striker, as the decision to play him through the centre and Ronaldo out wide continues to pay dividends. Two excellent poachers’ goals from the Croat.
Cristiano Ronaldo 9 – Would have wanted to get on the scoresheet himself, but will have to be content with knowing he set up all three goals on Saturday. His cross for Mandzukic and flick-on for Bonucci were excellent.
Rodrigo Bentancur 6 – Came on for Can, but offered little improvement as his passing was even more wayward.
Federico Bernardeschi 7 – Would have been disappointed not to start, and in the half-hour cameo that he had, he showed that he probably should have, making much more of an impact than Dybala had.
Juan Cuadrado 6 – A late substitute, Cuadrado had little time to make an impact, although he provided fresh legs as Massimiliano withdrew the superb Mandzukic.