Tuchel’s side extended their unbeaten to 11 matches with a 2-0 win against Everton on Monday, maintaining their impressive run under the German.
The German tactician has regularly rotated both his squad and his system since replacing Frank Lampard, and he’s recently found success with a 3-4-3 formation.
Chelsea took a huge step towards a top four finish with a 1-0 win against Liverpool last week, putting a further dent in the Reds’ woeful title defence.
Jurgen Klopp’s side have lost six games on the bounce at home and though the Reds have rotated, the former Dortmund boss has stuck with his preferred 4-3-3 system throughout.
And Merson believes that Klopp could learn a thing or two from Tuchel by switching systems.
‘If there was one team in the country that could play with a back three, I thought it was Chelsea,’ Merson told SkySports.
‘They have actually got wing-backs rather than just full-backs, if I’m being honest, and the switch has worked a treat.
‘If you look at Liverpool at the moment, it’s probably the way they should have gone. When you look back at it now, Jurgen Klopp should have been a bit more flexible and thought we don’t really have good defenders without Virgil van Dijk and Joe Gomez.
‘Maybe he should have been flexible and switched to a back three to give the players a bit more protection and also, they have wing-backs too in Andrew Robertson and Trent Alexander-Arnold, who like to go forward more than they do defending as well.
‘Tuchel has come in and spotted that at Chelsea, and Klopp could have learnt a bit of a lesson from that.
‘Going back to Klopp and Liverpool, this is hard to say but I think Klopp has been a bit blinkered.
‘It really is hard to say because he is a really top manager, but when you look at their situation, you’ve got Robertson and Alexander-Arnold, who are two of the best attacking full-backs in the country and they are up there as two of the best in the world too. There is no doubt about that. You only have to look at there assists and there crossing.
‘But, at the moment, they haven’t got the personnel in defence to keep things tight. If Van Dijk and Gomez aren’t there, Liverpool’s centre-backs aren’t good enough. That screams at me that they needed to switch to a back three.
‘That would give you bit more protection and it would just change things up a bit. However, he stuck with 4-3-3 time and time again, and they’ve been exposed.’