Liverpool arrived at the King Power Stadium with revenge on their agenda, having been knocked out of the Carabao Cup by Leicester City in midweek.

However, the two sides bore little resemblance to the teams on show in the League Cup, with managers Craig Shakespeare and Jürgen Klopp combining for 15 personnel changes in their starting line-ups.

The Reds got what they came for, though, coming away with three points after a thrilling encounter which ended 3-2, and could have been all square if not for Simon Mignolet denying Jamie Vardy from the spot in the second half.

We ran our analytical eye over proceedings to pick out our five tactical takeaways, and here's what we found.

Liverpool Wise To Leicester's Diagonals

Learning from past mistakes having been hurt by the very same tactic in the past, Liverpool were switched on to Leicester‘s attempts to counter quickly by playing long, diagonal balls into the channels for Vardy and Shinji Okazaki to chase.

The Reds held their defensive line five-or-so yards deeper than they ordinarily would, and were constantly aware of the threat of Vardy's pace in particular. Any time the Foxes looked to play high up to the England international or his Japanese partner in crime, the Liverpool backline, who've come in for their share of criticism of late, retreated while facing the ball, positioning themselves well to snuff out any threat.

Leicester tried the simple, yet often effective, tactic several times in the opening 25 minutes, but were forced to take a more considered approach by the away side.

Firmino's Movement Causes Confusion

Roberto Firmino is not your average centre-forward. The Brazilian has spent a large chunk of his career as a No.10, and even featured as a wide player, cutting in from the flanks, at times while at Hoffenheim.

Now spearheading the Liverpool attack as the central member of Jürgen Klopp's front three in a 4-3-3 shape, the 25-year-old is operating as a false nine, roaming from his station, popping up on either wing, or deeper, in a position more associated with a midfielder.

This allows Liverpool's wide men to break into the central space that Firmino vacates, something that Mohamed Salah and Barcelona transfer target Philippe Coutinho – as well as the suspended Sadio Mané – look to do whenever possible.

It also presents a quandary for the defending team: do the centre-backs follow him, or do they sacrifice a midfielder to track his movement?

Firmino didn't have an especially eye-caching game against Leicester, but merely his presence, drifting around and creating uncertainty, was impactful.

Vardy's Hustle Ideal Against Shaky Defence

Leicester striker Jamie Vardy

He could have rescued a draw with a second-half penalty, which he won by drawing a foul from Mignolet, only for the Belgian goalkeeper to save his kick, but Vardy's general display kept Leicester right in the game throughout.

Up against a backline that has struggled with their positioning at times this season, and whose occupants have made an inordinate amount of individual errors, the 30-year-old's ability to exert pressure was always likely to pose problems for Liverpool.

As discussed, the Reds dealt well with Leicester's direct attack, but Vardy's pressing bred panic within the Liverpool defence at times, not allowing the likes of Dejan Lovren and Joël Matip to settle on the ball.

His effort was rewarded with a goal, and he could've had more if not for Mignolet.

Liverpool's Set-Piece Issues Continue

Okazaki's first-half strike, ensuring Leicester went into the break within one goal of their visitors, undoubtedly came with a stroke of good fortune for the home side: the Japanese striker could, and should, have been penalised for a foul on Mignolet as the initial corner was swung over.

But, even so, Liverpool once again were exposed by their failure to properly deal with set-pieces. Mignolet came to punch the ball to safety but missed, his progress hampered by Okazaki's unpunished infraction. Yet the Reds still had plenty of opportunity to deal with the cross into the box.

Some have chosen to criticise Klopp's use of a zonal marking system in such situations. But, zonal or man-to-man, Liverpool's defenders have to do better individually.

Zonal marking's success is predicated on each man aggressively defending the space allocated to them, seeing off the threat of any opponent who enters their zone. Liverpool‘s defenders are too often caught inactive and punished.

Can And Henderson Offer Real Balance

Between them they made 121 passes, controlling the midfield and offering Liverpool resistance against Leicester‘s press.

Emre Can,  in particular, was a fantastic outlet when his side were under pressure. The German midfielder, though lacking pace, is a good dribbler, able to take the ball in tight spaces and carry it forward while shielding possession through astute body positioning.

The former Bayern Munich player's ball progression is an underrated asset of Liverpool's. His ability to push his team forward is becoming more and more crucial to the way Klopp's men operate.

In tandem with Henderson, who scored Liverpool's third after winning the ball in his own half and bursting forward to complement the attack, the duo offer great balance to Liverpool; when one goes forward, the other, instinctively, holds the fort.

With Mané returning from suspension next weekend, there is reason to believe that Klopp would be well advised to give 4-2-3-1 a try, with Can and Henderson in a double pivot, and Coutinho ahead of them as a No.10.

Premier League