I think Klopp is a very good manager and his teams are wonderful to watch, which does count for something, but I genuinely don't understand why he isn't fine with selling Coutinho for 90M and Moreno and Origi for 15M each as long as he gets to buy a replacement and 2 defenders with the money. Say they bought Seri (40), Rose (45) and Sanchez (35M) to pick the most popularly rumored players moving this week in their spots of needs.
I'd be way more confident in Liverpool challenging for a title and getting out of (and first into) the CL Group stage with the following team than their current one with Coutinho:
-------Firmino-------- (Sturridge, Solanke)
Mane-----------Salah (Firmino, Kent, Markovic)
-----Seri-Lallana----- (Winaldum)
------Henderson----- (Can)
Rose------------Clyne (Robertson, Milner)
--Matip--Sanchez---- (Lovren, Sakho, Gomez, Klavan)
-------Mignolet------- (Karius)
Keeper and DM and a 3rd winger in case Mane or Salah get hurt are real issues, but I'd be shocked if that team didn't do better than Liverpool would do with Coutinho in place of Seri (and in fairness, giving them a 3rd wing option which you need in a long season) but also Robertson, Moreno or Milner at LB, Lovren having sporadic mares at CB rather than being a decent backup.
In most sports, the manager and the GM need to be separate people for it to work. In football it seems to be mixed, but I haven't seen anything to suggest Klopp understands his team's personnel issues at their obvious problem spots or how to fix them.