Allan is currently the only healthy midfielder we have who is worth a start in the prem. In a 3-man midfield, with someone sitting behind him and Doucoure to shield the back 4, he'd work well... like he did in the first half of the season under Ancelotti. He's fading due to age, sure... but any system using a 2-man midfield neuters him.Allan is not good, he is very poor.
We currently need two CMs. If you bin off Allan, we need three.