Antonio Conte is a head mentor who prides himself on his group's capacity to shield, having won three titles in Italy from the back.
At the point when Juventus won Serie An in 2011-12, they let in 20 objectives – the best by a long shot in Italian's top division. When they won it in 2012-13 and 2013-14, as well, they let in only 24 and 23 individually – once more, both the best.
Presently at Chelsea, he's seen his side surrender nine in the Premier League. Here, Sportsmail investigates Chelsea's catastrophe of a safeguard.
NO Organization!
There was a minute in the 56th moment at the Emirates when Chelsea attempted to play the offside trap and it fizzled awfully, as Arsenal just about scored a fourth objective.
Gary Cahill and Branislav Ivanovic had pushed up to play Theo Walcott off – N' Golo Kante had, as well, having apparently slipped into the back four. The inconvenience is, David Luiz didn't.
The £32million summer marking didn't get the reminder – possibly it was sent to Paris rather than Chelsea? – and unexpectedly Arsenal were in once more.
It was only one case of by no association from Chelsea on Saturday and this is something that Conte needs to deal with.
A GOOD ENOUGH GOALKEEPER?
Another minute at the Emirates saw Thibaut Courtois neglect to come to gather the ball and Cahill ran wild with his goalkeeper for not doing as such as it practically got Chelsea stuck in an unfortunate situation.
Is it true that this isn't the goalkeeper who Real Madrid are apparently going to attempt to sign sometime in the future? In the event that their scouts were in north London on Saturday, then they won't have been awed by his uncertainty.
Of course, he made some shrewd recoveries and it could have been more awful for Chelsea were it not for him, but rather he has looked precarious between the sticks all season.
CAHILL LOOKS LOST WITHOUT JT...
Indeed, even at 30 years old, Cahill resembles a lost young man without the man five years his senior close by as supervision.
Cahill was at deficiency for Arsenal's opener as he tarried on the ball and was pick-stashed by Alexis Sanchez.
Weapons store's pace was quick, Chelsea's was lazy, and the England focus back was among the individuals who let his group down.
He and Luiz weren't working pair as they ought to have been and there was no administration in Terry's nonattendance in the back four, in particular from Cahill.
...What's more, LUIZ IS NO JT
Burn through £32m on an inside back and you ought to, at any rate, have the capacity to depend on him to supplant a 35-year-old. Luiz attempted to fill in for Terry, however fizzled.
Chelsea's inside back targets traveled every which way in the mid year. Leonardo Bonucci of Juventus and Napoli's Kalidou Koulibaly were needed however Conte was left with what he as of now has.
Ozil's objective – Arsenal's third – demonstrated that Luiz is no Terry.
He and Cahill weren't certain where to go or who to check as Ozil and Sanchez counter-assaulted.
Sanchez kept running over Chelsea's cautious team as a distraction and both took after to leave Ozil with space at the back. At that point, when Sanchez had the ball, he crossed, and Ozil finished the 3-0 whipping. Simple.
WHAT NEXT?
Sportsmail uncovered before in September that Chelsea's scouts had begun to search for home-developed guarded ability.
Burnley's Michael Keane and Middlesbrough's Ben Gibson are among the individuals who have been viewed.
That is intuition for the future, however. A fleeting arrangement might be required and Conte will more likely than not attempt to settle this in the January exchange window.
What's more, shouldn't something be said about the full-backs? In 2012, Cesar Azpilicueta was marked as a swap for Branislav Ivanovic, their 32-year-old right-back.
However after four years, gifted Azpilicueta, 27, is as yet being utilized on the left.
Chelsea marked left-back Marcos Alonso in the mid year, yet is that enough? Once more, enlistments are no doubt required in the event that they are to contend with the Premier League's huge young men.