Whilst I agree that, for De Bruyne, his best position is probably in a free role behind Aguero, I can't agree that would be the best place for him "for the team". City are extremely lucky in that, in my opinion, we've got the best player in World football when it comes to playing in the number 10 position, behind a lone striker, and that player is David Silva. If fit (or not being "rested") Silva should play that role. De Bruyne's time will come, 6 or so years younger than Silva, but for the time being De Bruyne is most likely to be on the right of an attacking formation.