Why would we move one of the very best defensive midfielders in the world, so key to our success, out of position?
Very strong chance Rodri will be first choice by new year meaning that Fernandinho can be utilised as a utility player when he doesn't need to start at DM. We can afford to move one of the very best defensive midfielders in the world, because we just signed one of the other very best DMs.
I think if Fernandinho is to continue his career here on a more long term basis, his future will partly be at CB as he ages. He has the ability to be very good in this position.
Pep's played him there before in the past, but hasn't needed to, nor been afforded the opportunity to play him there more due to having no proper DM cover. Reports that he will be 4th choice next season haven't just been plucked from thin air.