Not all can deliver the playmaking qualities which is the main focus of the Regista role, example being Fern.Yeah its pretty obvious. DM is a position on the pitch. Regista is a role that a DM can play.
Conversely not all can deliver the defensive security which Fern in this role has been able to provide City.
Its a case of risk and reward I suppose.
Having a deep lying playing maker in this role would theoretically bring reward with allowing City to break a manic high line press more comfortably such as the one Liverpools tend to deploy against us and recycle, retain and make swift transitions from deep.
However, the risk is that Jorghino's lack of pace and mobility would affect are team shape with either one of the fullbacks or central defenders being pulled out of their positions to cover which ever player has broken free from Jorghinio or he has been unable to track a player effectively.