Well, your complaints are valid, to some extent only, just compare this:
Rabiot - Arthur - Locatelli
with this:
Rabiot - Jorginho - Locatelli
The second is CLEARLY better. Sure, we have to dump useless Rabiot for someone else, totally. Jorginho himself though, makes a lot of sense, he basically frees up Locatelli to play as B2B.
Then, we spend some cash for that LCM and suddenly the midfield looks much better.