DEFINITELY: Attacking central midfielder: Kagawa. Done.
DEFINITELY: Creative central midfielder: Someone who has a solid all-round game and has a good range of passing, is tactically and technically sound and also not afraid to do some defending. Fit job description: Modric, Javi Martinez.
POSSIBLY: Holding Midfield: Can break up play, tackle and provide a shield for the back 4. Possibles: M'Vila, Javi Martinez.
POSSIBLY: RIght back: Although we dont have a regular, natural right-back (that will be able to play a whole season) I can see Jones or Smalling being developed into the job on a full time basis. Not going to happen.
I say along with Kagawa we only need to sign ONE or maybe TWO others this transfer window.