When Jurgen Klopp first walked through the doors at Anfield back in October 2015, he delivered a message that feels eerily prescient today. "History is the base for us," the German declared. "It's not allowed to take the history in the backpack."

Fast forward to now, with Arne Slot's tenure over amid dressing room discord and fan unrest, and those words carry fresh weight. Klopp had spotted something crucial about this club – our tendency to let the glory days weigh us down rather than propel us forward.

The noise has already started. Mohamed Salah's social media post calling for a return to "heavy metal football" might have warmed hearts among supporters frustrated by Liverpool's laborious end to what became a tortuous campaign. But the calls for Klopp-style football – and in some quarters, even Klopp himself – miss the point entirely.

Football has shifted dramatically in the two years since Klopp left Anfield. That evolution is precisely why Liverpool decided Slot was no longer the right fit for where the game is heading. Arsenal have become the benchmark across multiple metrics – physicality, power, height, and squad depth. Though as their Champions League final showed, those qualities can only take you so far.

The question is what we mean by heavy metal football. Is it the relentless pressing, the front-foot intensity, the full-throttle approach? Or is it simply about leaving every ounce of effort on the pitch when the final whistle blows?

If it's the latter, then there's plenty of work to do with this current squad. It became painfully obvious during the final third of the season that some players weren't fully invested in Slot's methods. You don't need a detective to work out which players weren't giving 100% to the cause – and this summer's transfer business will likely provide further clues.

The attitude issue cuts deeper than tactics or personality clashes. Players with the right mentality find ways to rise above those challenges because they understand who they're really serving – the supporters. That clearly wasn't happening.

Andoni Iraola emerges as Liverpool's preferred choice to replace Slot, with formal talks expected to begin with the Spaniard's representatives this week after his departure from Bournemouth following three years in charge. The connection to Klopp's philosophy is clear – Iraola favours high-intensity attacking football backed by surprising physicality.

The numbers tell the story. Only Chelsea and Tottenham collected more yellow cards than Bournemouth's 88 this season, with the Cherries ranking second highest in 2024/25. Compare that to Liverpool's 57 – the lowest bar Arsenal's 51 – and you see the contrast in approach.

But here's the thing Klopp understood better than most: history serves as foundation, not blueprint. It's there to learn from, not to recreate. The German wouldn't want Liverpool supporters gazing backwards when the future demands our attention.

Whoever walks through that door next – whether it's Iraola or another candidate – deserves the time and resources to build something in their own image. The temptation to demand carbon copies of past glories has held this club back before.

Klopp's warning about the backpack feels more relevant than ever as Liverpool stands at this crossroads, ready to write the next chapter rather than reread the old ones.