Liverpool's second-half capitulation is a reminder they have a long way to go despite some progress of late.
Liverpool's defeat to Southampton should be treated as a massive lesson for several figures within the football club.
A lesson for Jurgen Klopp when it comes to certain aspects of his game management with this squad of players at his disposal, how to react when the opposition makes wholesale changes (something he has actually been pretty good at to date).
It is also a lesson for the manager in bringing players back from injury, it should also be a lesson for some of the players - including areas they need to work on, and establishing a better relationship on the field with who they are most uncomfortable playing with.
A lot of focus is on the substitution at half time to replace Dejan Lovren with Martin Skrtel. The decision to substitute Lovren made some sense. He wasn't having the best of games having picked up a yellow card, and was lucky not to concede a penalty for a foul on Shane Long. In short it seemed the Croatia international was walking something of a tightrope.
It was a little odd that even though Skrtel is a very experienced defender having been at the club for eight years, that he was anywhere near the first team squad following a disastrous display for the under-21 side in midweek against West Ham United which saw him sent off for a second bookable offence.
Kolo Toure had previously performed in an accomplished manner at the heart of the Reds' defence in the absence of Lovren. While Klopp have been looking ahead to next season, it is probably wise for him to look at the here and now when the side has an opportunity to build momentum for the remainder of the campaign.
But now he has the hindsight, he has to question why a seemingly pretty solid side over the past few weeks fell to pieces at St Mary's. Skrtel's introduction may have been one reason - you could make a convincing case that he was responsible in some way for each goal that went the Saints way. But the lack of reaction to Southampton's changes was one that baffled, especially since it's something where Klopp has done well this season.
Look at the recent Europa League games against Manchester United, and wins over Manchester City and Chelsea. They're examples of where he got things right, this time he got them wrong. It's just a reminder that Liverpool's manager is human after all.
Over the past few weeks there seemed to be evidence that Liverpool were developing some inner steel. This capitulation, like with the 2-2 draw at the start of February, is a reminder that there is still some way to go.
As dispiriting as it may have been for Liverpool, this is not exactly alien for a side under a manager who has been in charge of the club for less than a year.