I don't know if thats fair, they lost both their first-choice CBs, and for one reason or another Matip seems injury prone. The mistake is only having 3 senior centre backs and thinking Fabinho can drop in once in a while.
Klopps net spend I believe is one of, if not, the lowest in the league since he took charge. Something I read is that the owners of the club either don't have the liquidity of cash or are forcing an arbitrary sustainable financial model on the club. So what I mean is they simply don't have the cash position to spend big without selling first. Thats where our owners are simply one of the best in the league.