To pop my two pennies worth on Van Dijk I do think he is one of the best centre halves in the league, which is reflexive of the world record fee they paid for him.
Alisson however is a bizarre signing. They are paying close to 70 million, for a lad who's a couple of years older than Pickford and significantly weaker than him from the little I've seen of him. He looks ok but by no means world class. I am not sure I have him in the top 5 goalkeepers in the league (De Gea, Courtois, Pickford are all better than him). You have a debate about Cech, Lloris, Schmeichel and it's a debate he doesn't fair favourably.
None of this is wise after the event either, I have put my position very clearly well before they were even linked with him. I saw a few honest reds saying they felt he was not a significant upgrade on Karius, no doubt they will be silenced by the cult when the party line is issued.
As for "doing a Leeds" as we keep saying I don't think that is the argument anyone is putting forward. What we are saying is the hundreds of millions of pounds Klopp has now spent (net, never mind gross) will need to be accounted for. I suspect some of this will be going onto the debt to push the figure beyond 300 million. Alongside this there will be an expectation to deliver from the fans.
They have assembled one of the most expensive squads in world football, and leading them to 4th again, being 20+ points off the top of the league will not be tolerated in the wider media and from sections of their own fan support.
The last time this happened, a well respected manager went out and spent huge sums on decent (though not world class players) was Benitez. It spiralled a debt crisis that led to them "doing a Leeds" but being bailed out by the Tory Establishment through the courts. They will not get so lucky a second time, the situation is radically different, in May's Tories will not get away with bailing out their favourite pet project if it gets to that situation again.
Good luck to them next season. When you spend the money he has you need to win the league. Failure to do that will potentially set a chain of events in mind that could be calamitous. They are gambling at the big stakes table now, and for their sakes I hope the numbers come in.
65 million for Allisson. It's insane.