Enzo is more than capable of being in the double pivot with Moi. The issues the pair have had are pretty obvious to me and are ignored by media and even some of our own because of their transfer fees.
Firstly, Enzo was our best player last season playing deep and he has done it internationally and in Portugal and Argentina's respective leagues and secondly, the rumours of him not being okay this term are overstated. Figure in that Lavia was bought primarily to help cover for our two overworked and over travelled South American mids and has never been around for them TO rest.
Enzo had had no break from playing for two years when he arrived and surely had none since he got here and has been carrying that hernia for months too. Caicedo has had similar issues and importantly isn't used under pressure to break the press as he was at Brighton. Enzo was moved around different roles by Poch while Moi has been used to just destroy which is not him.
In short neither have been truly fresh or fit, neither rested nor often played in their best roles. Moses has been hammered by the media this term very unfairly when you consider the madness around him yet has good player partnerships with Palmer and Gusto as.the most settled area with the ball in our team.
Give both of them a more consistent role with players they know better next term and, provided they get rest things can only improve imho.