Indeed, but I think the issue is more complex in that. For one, based on Klopp's past comments, I very much doubt Klopp wants 8 midfielders. I think we have stumbled into an imperfect situation which is not probably ideal for either Klopp or the club, and especially not the financial situation.
This sums it up perfectly for me. We're in this situation by accident, not by design. We added Fabinho, Keita and Ox at significant cost, and probably expected that to be our 1st choice midfield to eventually replace players like Hendo and Gini. Only one of those 3 has worked out as planned (far better than planned), but that doesn't mean the intent or the spending weren't there. Keita had all the makings of a perfect midfielder under Klopp, and Ox looked ready to revive his career with the clear talent he had, despite the injuries.
Klopp can't just hand out P45's and get new players in. There are contracts and financial obligations to all of our squad, and we can't sell unwanted players if there's no buyers.
People complaining about not replacing Gini forget that we bought Thiago a season earlier when arguably we were already well stocked. Alhough he's no spring chicken, there's no doubt Klopp planned for him to get him involved quickly and become a regular. His injury was unlucky and unforseen, and certaintly not FSG's fault.
Milner has been an incredible servant, and steps up when needed, even if he can't play as many games these days. Henderson looks tired but remains a great leader and driving force. Jones showed plenty of promise over the last 2 years and has age on his side. Elliot looked like he was going to make a big impact before that horrible injury.
So that's 8 players for 3 positions, and whilst some are injury prone, I'd argue only Ox was like that regularly before he joined. We also have Firmino or Minamino who can drop deep when needed, although not as midfielders in the purest sense.
So it's been a mixture of bad luck, timing, injuries, or poor form - certainly not all down to the owners, lack of spending, or losing Wijnaldum (although Gini was a firm favourite of mine in his time here).
Too many people are trying to find someone to blame when sometimes you just need to accept that we are where we are. Two seasons ago many people were moaning we had no cover for the front 3, or for the defence, and that we needed an extra body in midfield. The club went out and bought Jota, Thiago and Konate in two summers. The fact that they didn't solve every problem is more down to unforseen injuries or form in other players - not a lack of planning or spending.