The biggest lesson we should have learnt isn't apparent to many posters on here obviously!
It is not all about Klopp - in fact, Klopp is just one piece of the jigsaw! We as fans, as a club, HAVE to get away from this **** of the Manager that we have been obsessed with for so long.
The point at which Liverpool turned the corner was when they appointed Michael Edwards and his team of analysts to modernise the way they assessed footballers. I remember articles at the time ridiculing the owners and writing supportive articles of Brendan Rogers, claiming Edwards and the infamous 'transfer committee' where undermining him........well look at how badly those articles have aged!
ALL of the players currently tearing it up for Liverpool were recommended and bought in by Edwards and his team. Mane, Salah, Allisson, Wijnaldum, Robertson, Van Dijk, Firminho.....I could go on.....some of the them have been expensively purchased but they all without exception look like fantastic value now. Meanwhile, we have stumbled around making some of the most atrocious signings for huge money in modern history.
What Klopp does at Liverpool is important - but never overestimate the importance of a single manager to Liverpool or Manchester City, for that matter. What they have achieved is down to the modernisation of their structure and the staff they have bought in, often unheralded, who provide critical support for the manager
If you don't understand the above, you won't understand why we have struggled so badly