Klopp's first Liverpool XI v Klopp's latest Liverpool XI

Forwards

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Adam Lallana, Philippe Coutinho & Divock Origi (2015) v Mohamed Salah, Sadio Mane, Roberto Firmino (2019)

Coutinho left Liverpool in the middle of last season

This is the part of the field that underperformed the most. Although Coutinho was decent, the other two did not contribute much. Origi did not feature much and was never a real goalscorer. Though he did start a run of scoring in the next season under Klopp, injury halted his progress and now struggles to get first-team minutes.

Lallana' story is similar in the sense that he too performed poorly in that season, then gave brilliant performances in the next two seasons, confirming the first-team birth but then injury caused a hindrance and now is way down the pecking order. Coutinho was arguably Liverpool's best player then and in the next season but got his dream move to Barcelona.

There are no words left to describe the front three of Salah, Mane and Firmino. They are the best attacking trio in the world currently after their exploits last season. Salah won the big individual awards of the league as well as UEFA awards. They have been on fire and though they might not be scoring as freely as before, they are still very dangerous on the counter.

With Firmino's hard work and Mane and Salah's guile and pace, this trio is hard to stop and without an ounce of a doubt better than the front three Klopp put out in his first game in charge of Liverpool.

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Bench

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The bench also shows a stark difference, as now, the quality of players on the bench is as good as the first XI.

Bench in 2015: Adam Bogdan, Connor Randall, Kolo Toure, Joe Allen, Joao Carlos Teixeira, Jordan Ibe, Jerome Sinclair.

Bench in 2019: Simon Mignolet, Dejan Lovren, Alberto Moreno, Fabinho, Naby Keita, Xherdan Shaqiri, Daniel Sturridge.