I think that there have been personal issues behind the scenes (mum ill) that have led to his drop in form. Confidence is so important for a striker and his has been affected.
His major problem is that he isn’t a Captain or leader on the field, as he needs to concentrate on his own game.
Whereas when Laca wears the armband you can see him trying to inspire the team and encourage them.
Auba is only Captain because he is the highest earner, and I think he would benefit from this being given elsewhere, but in a way that the press don’t go overboard on