Ok.
I'll clarify. Liverpool FC has proven itself utterly incapable of replacing quality players consistently, & each time we have sold our best players we have regressed as a team.
Torres then Suarez is the arguable exception, but that's pretty unique as he was that good he improved those around him too, & if you remove him from the equation it's hard to argue that selling our best players has proven to strengthen the side in following seasons.
Perhaps Klopp may have the ability to turn that around, but I'd prefer to err on the side of caution & not only keep our best players, but add more of them.
Let's face it, this is the weakest side we've had for a very long time, & the fact an inconsistent Coutinho is our best player highlights that.