The guy at Liverpool is flavour of the month like the guy at Leicester was. It’s only ever short lived.
we had good recruitment initially following takeover (preceded by excellent signings of zabaleta and kompany), then a bad period headed by marwood when we were restricted by ffp and should have just kept the money in our pockets. Then we had another good run (Fernandinho top of that list) and another lull before pep. Another good run started just before pep (de bruyne, sterling, ederson, Walker, Jesus, sane - when you look back arguably our best recruitment period post toure/silva/aguero) and we have just been through another dip (Rodri, mahrez).
the reality is, players are humans not computers and you can look at the stats all you like but it sometimes just doesn’t work out. Law of averages dictates you will end up with a run of successful signings and a run of poor ones not an even spread.
if it was all about stats then there would be no scouts and managers wouldn’t watch videos/go and watch players.