The creativity in that midfield of Rabiot, Loca, Kostic and MDS. They'll supply and link up well with defense and attack. Or not. I'd rather see us put in Fag that can link up.
Perin; Danilo, Bremer, Gatti, Kostic; Fag, Loca, Rabiot; ADM, Dusan, Chiesa. Danilo can sit back to cover for Kostic. Preferably Rabiot on RCM to increase width and allow Fag to roam more. Otherwise the right flank will be empty. Unless Cuadrado is put on as RB or Danilo asked to step up and Rabiot and Loca is set to cover spaces.