Ireland is the most Intellegent of all 3.
When I say brains I mean players that control the team's midfield and orchestrate the play such as Cesc for Arsenal, Xavi for barca & Spain, Sneijder for Inter & Holland, Pirlo for Milan a few years back... that one central guy that drives the team even if he is not the Main Star or the top Goal scorer or Assister.
That player is no shinning star like Messi, Rooney, C.Ronaldo , Torres or Drogba.. he is rather the origin of the whole team's performance.
The stars will shine almost everywhere they go but a Team won't without a brain.
Tevez is a star and a goal scorer but not a brain.. the same can be said about adebayor and Bellamy. Silva, Phillips, Ze-maria, Jesus Navas, Valencia, Lennon..etc are all very talented players but not the kind that moves the whole team.
Inter's most important player is Sneijder even If Milito scores all the goals and Maicon Makes these runs forward.
Its the difference between Zidane and Ronaldo (the brazillian) Where the former Drives the whole team as he proved with france even though he is less technical and less talented than \the brazillian legend.
Think of Ribery as a talented brainless player.
City needs one middle guy that links the whole team together.. Dinho has the means to do so... he single handedly took milan to 3rd spot.. a squad much worse than ours.