I don't know who calls the shots in terms of signing players, but from the outside looking in, 450mil was spent but not on players that were needed. Half the money spent on Isac could have been spent on a CB, which may have improved the performance/results.
Anyway, besides the money spent, I still feel it's okay for a team to be in the CL spots after a league win. With quite a few games to go, if he finishes in top, that should suffice.
Are you sure it's not a healthy dose of Alonso-itis that's hitting the Liverpool fans?