Sarri likes to build up from the back patiently starting with the goalkeeper who distributes short to one of the central defenders who then look to find the deepest lying midfielder, they do this to try and lure the opposition attacker(s) into pressing them thus either tiring them out or causing the opposition midfielder(s) to push up opening space for the Napoli's more advanced midfielders to move into. When Napoli have possession they look to play quick incisive one touch passes with lots of movement to open up vertical passing lanes while retaining possession and trying to overload the opposition. Similar to Guardiola, Sarri looks to win the ball back quickly by closing down the opposition in their own half forcing them into a misplaced pass or a clearance up field which complemented with a high line means Napoli can regain possession and try to rebuild attacks from there.
Translating this into Football Manager
Formation, Player Roles & Duties
Essentially another outfield player, he will need to have very strong mental & technical attributes particularly First Touch, Passing, Rushing Out, Composure, Positioning, Anticipation & decisions.
Ball Playing & Central Defender:
Must be comfortable on the ball, all around good defenders with strong Physical, Mental & Technical attributes. (Naturally you wouldn't play a Ball Playing Defender with the instruction to play out from the back as they essentially cancel each other out but Koulibaly did play longer passes occasionally.)
Excellent all around footballers, high levels of Work Rate, Stamina, Natural Fitness, Passing, Off The Ball, Marking, Positioning, Dribbling, Crossing First touch are all massively important.
The linchpin of this system, must have exceptional Technical & Mental attributes particularly First Touch, Vision, Passing, Technique, Composure & Decisions. (Balance & Agility help too)
Ball Winning Midfielder:
Could swap this out for a Carrilero or a Box To Box Midfielder however I prefer the mentality of a BWM. Attributes to prioritize would be Work Rate, Bravery, Team Work, Natural Fitness, Stamina & Tackling.
An all around quality player is required, must have solid physical, mental & technical attributes, this role is basically your attacking outlet and you will force a lot of your attacks through him.
Strong technically, physically & mentally. Being right footed is ideal so he can naturally cut inside. Standout attributes would be Off The Ball, Passing, Technique, First Touch, Vision, Flair, Acceleration, Balance & Pace.
An all around quality player is required, ideal attributes would be First Touch, Passing, Flair, Off The Ball, Balance, Agility, Teamwork, Finishing & Anticipation.
Essentially a wide poacher who will look to make bursting runs into space the opposition defenders leave, the ideal attributes would be Finishing, Anticipation, First Touch, Composure, Off The Ball, Stamina, Acceleration & Concentration.
The idea behind this is to encourage quick incisive one touch football with lots of off the ball movement and freedom for the players to express themselves. When out of possession try to win the ball back as quick as possible by closing down and pushing the defensive line up to restrict space for the opposition and force them into playing it long losing possession or play it back/sideways. Close down the keeper to stop them from trying to build from the back.
Season Review & Analysis
I went on a manager holiday from the end of December right up until the end of the season just to see how the tactic performed without any kind of influence from myself during the games and I still won the league comfortably. This isn't a plug and play tactic; it's just a blueprint for you to have a foundation to build on and ultimately get a great all around tactic for your team.
I hope you enjoy and found something useful from this, thanks for reading