Masch is not going to be staying and I think you need Gerrard further up because him, cole and Nando will be devastating in attack my line would be:
Reina
Johnson Carra Agger Taiwo/Ziegler
Aqua L.Diarra
Jovanovic Gerrard Cole
Torres
Apparently Real are willing to sell Diarra and I think he could be our steel. Aqua is physically weak but technically strong and can pass so he provide the link play. Johnson, Taiwo/Ziegler be great at bombing up the wings.
The forward line needs no explanation! If we can get Ruiz or Turan then I would take Jovanovic out.
Sorry, can't agree that Aqua is up to a deeper, more defensive role. Tackling is not is strong point and he's not robust enough for that job, IMHO.