Fiery Liverpool doing it Jurgen Klopp's way
Man City 1 - Liverpool 4
You have to hand it to Jurgen Klopp: he even wears a Liverpool scarf well. It can look like a self-conscious fashion statement around the wrong neck but his was stuffed inside his collar for warmth.
This is the individual whose confidence appears to require no front. Simply to watch Klopp dispense with the usual rituals on Saturday evening and walk around Manchester City's pitch, shaking hands with the opposition players after his side had defeated them 4-1, was to feel that what lies ahead might be very interesting.
A number of us were similarly taken with his predecessor Brendan Rodgers for a long while, so some circumspection is required.
Yet what we witnessed was the most striking manifestation of Klopp's ability to deploy players in the roles to which they are best suited, convert them to the relentless workload of his counter-attacking football and make them want to run through walls for him.
One picture - Adam Lallana, the manifestation of the Rodgers ornamental style, in embrace with his boss after putting in a James Milner-like shift - painted a thousand words about Klopp as an agent of change.
He's using his powers of persuasion to scramble the notion that a top-four finish is achievable.
"It's only OK if you ask it as well after we lose. I would love to win a game like this at Anfield," said Klopp.
He also spoke of a psychological deficit: a group of players who at half-time were "surprised" to be 3-0 ahead. When it was put to him that his job might entail telling them, "Believe! Don't be surprised", he indicated it was not as easy as that.
"It doesn't work," he said. "If you are stuck in a forest and it's dark and you are afraid and someone tells you not to be, it doesn't work. It's your own mind. Only you can affect that. We need the confidence in ourselves but we cannot switch the lamp on and off."
The speed of adaptation has been extraordinary, though, and implemented by a manager with the clarity of thought not to overthink and overcomplicate, as Ulsterman Rodgers did in the end.
Klopp said publicly when Roberto Firmino joined Liverpool that it was £29m of good business. His decision to use the player Rodgers started with only four times was vindicated. There was an energy not seen in a Liverpool striker since Luis Suarez.
His deployment as a false nine was bold because Christian Benteke, a late substitute, had been fit enough to start. Firmino, who scored, set up Philippe Coutinho's goal, provoked Eliaquim Mangala's own goal and missed two more chances, simply works harder.
The ubiquitous Klopp "helicopter" hand gesture tells the story. He whirls his arm above his head to beckon his players to switch flanks. There is none of the complex science of the triangles Rodgers made with his fingers.
Milner said: "He wants a reaction when we lose that ball and wants to get after it quickly. We press in different ways depending on who we're against and how we play. He wants us to be calm as well. It's one thing going after the ball at 100 miles an hour but when you win it you have to be calm.
"He'll tell you if you're not doing the right things and that helps. He's in the game and you know he's there with you. He wants you to do well. He knows you're going to make mistakes and you'll get a rocket but he'll come up to you after and say, 'Well done'.
"Every manager is different. He's different to the old manager but the longer we're together the better we'll get."
It helped that City were so poor, with Sergio Aguero's crisp goal and Joe Hart's rescue work providing the only quality. They found Klopp's strikerless system unfathomable and removing the overrun Yaya Toure and Jesus Navas at half-time made no difference.
Manuel Pellegrini looked tired and simply out of ideas. The whole world knows that Klopp's team press, yet City seemed completely unprepared.
Even Milner was surprised by how cheaply they sacrificed possession. "Yes…" he said.
The promising aspect for Liverpool is that Klopp feels his side have a quality deficit.
The German said: "They changed the manager here.
"It wasn't because of the weather and it wasn't a problem with Brendan Rodgers, because he is a brilliant manager. But they had to change something.
"I can't say that we are good enough but if you want to write it, you can."
Yes. What lies ahead might be very interesting.