Rakitic is primarily a CMF - as well as Attacking and Defensive MF. De Jong is CMF and Defensive MF - who can even play as a backup CB. His profile match more with Busquets or Kante! Though we see him a lot to go to up in the opponent's box - has speed and pass accuracy -which makes him a hot product in the market.
Arthur, Parejo and Pogba - on the other hand more Like Rakitic - who can be a D-CMF as well as A-CMF.
Arthur is not fast enough moving with the ball - what Parejo is.
Lo Celso is a CMF/AMF, Van De Beek is an AMF/CMF and Rodri is a defensive MF and CMF.
Vidal and Pjanic - both CMF / DMF - like Busquets and Kante.
Joao Felix is one who is more of an Attacking MF / false 9 - as well as a CMF. He can also play RW.
We can let go Rakitic if we can get Parejo. Pogba is too much to handle.
Considering path forward we must get Parejo and let Rakitic go! Busquets, Vidal, Rakitic/Parejo, Arthur, De Jong, Alena and Roberto - should look good this year. Vidal should be replaced by either Rodrigo or Donny Van De Beek - next year.