Nothing wrong with that .
Didn't Fergie do that by signing RVP.
Given how the post-SAF period went, not sure that's the best example. Our post-SAF managers may have been poor, but the ageing squad he left behind was definitely a part of the problem.
Not sure why people are mentioning long term planning etc. Klopps not leaving for another 4 years minimum, 4 years ago he had just started his first full season and rebuilt/restructured the squad over the course of 2 years in to a title challenging one. Someone like Werner would have been ideal long term squad planning but it’s a bit strange to accuse him of a lack of planning given he’s got another four years.
By the time he leaves he’ll likely have rebuilt the squad for his successor which is what he said he’d do.
We're not really talking about 4 years plus, this is stuff that will be an issue during Klopp's time. This time next summer you’ll be going into a season where 6 of your first team (plus Thiago, if you get him) turn 30 or above, and a few of your bench players do too. That means either replacing maybe 7 or 8 players in a couple of closed seasons, or relying on first team players until they're in the 32-34 yo age range. Thats a fairly risky approach either way. Starting next summer gives you very little margin for error. Its doable of course, but needs totally flawless recruitment and integration into the first team, which hasn't been the case so far under Klopp. Seems odd to take such a risk when Liverpool are on top now and are making changes from a position of strength.
Comparing it to the last time Klopp built the team is a bit fruitless because during those seasons Liverpool were only challenging for the top 4 and were nowhere near the title race. I assume Klopp isn't happy taking a back seat for a season or two while he rebuilds, so the process is likely to be different. He can't just change the team wholesale this time, he needs to evolve it.