@Rafateria Not buying this idea that Mane, Coutinho, Firmino, Salah, or even Suarez can be counted as big signings. They've turned out great for you, but they certainly weren't considered big signings when you actually signed them. For most, if not all, Liverpool was either a step up or at least a step sideways, and this was when you were finishing 8th for some of them. At the time, you weren't fighting off the likes of Real, Barca, PSG, Bayern, United, City or Chelsea for their signatures because none of them were interested enough.
Coutinho signed off the back of a loan to Espanyol because he couldn't establish himself at Inter. Firmino had essentially outgrown Hoffenheim, who had finished 8th in Bundesliga the season before you signed him. At the time you signed him, Mane was pretty much taking a step sideways, taking what I assume was a higher wage and the chance to work with Klopp. Suarez had outgrown the Dutch league, and was actually suspended for biting when you signed him. Salah had impressed at Roma, and is possibly the closest to a big signing of all of them, but even then, it was something of a step sideways, and you broke your transfer record to bring him in. I also don't remember there being any real competition to sign him.
The aforementioned players might have come good at Liverpool, but you've also got a list including Carroll, Downing, Borini, Aspas, Alberto, Markovic, Balotelli, Origi, Lambert, Benteke and Ings that were signed over the same time period, that cost as much (or more) than the ones that did come good, and they were almost, to a man, utter duds. Only two on that list are still at the club, and I can't see Ings lasting much longer, and last I heard Origi was hardly pulling up any trees at Wolfsburg.
In recent years you've also very publicly missed out on signing Alexis Sanchez and Thomas Lemar, from Barcelona and Monaco respectively.
There's obviously an element of not being able to pay the transfer fees that big signings command (whether that's down to FSG refusing to stump up for just one player or simply not having the funds), but I certainly think it's disingenuous to be claiming that Liverpool have successfully attracted any big signings to Anfield over the last few years, and probably not since Mascherano or Torres signed nearly ten years ago.