Playmakers dictate play, usually from the middle. You're quite right that Silva over the years has started wide and drifted inside.
I appreciate De Bruyne often played centrally for Wolfsburg and did brilliantly. The difference being Wolfsburg were a top 6 side, teams didn't park the bus against them. Most of De Bruyne's good work was exploiting space in behind teams, either hitting an early, direct ball or running in to the space behind.
The difference playing for City is we're the best team in the league. Most teams park the bus, sit back and leave no space in behind. That negates a lot of De Bruyne's game. It requires more acute technique, intelligence and subtlety. De Bruyne is currently not at or anywhere near Silva's league on those things.
De Bruyne has tried to play as a playmaker for us in the first 25 minutes against Newcastle, and in the 7 weeks Silva was out. He was dreadful trying to play that role, it's not his game.
Playing as a playmaker for a top 6 Bubdesliga side who play on the counter is quite different from being a playmaker for the best team in the Premier League who dominate possession. By the same token, Silva wouldn't have been suited in doing the job De Bruyne did for Wolfsburg, he's got a different set of skills.
I've seen De Bruyne's biggest fan on here say "well he's got the best goals and assists record, and the stats are the most important thing". Unfortunately if you look at the game only through those parameters you don't really understand the game, and probably never will.
For me the most important thing is for the team to play well. If they do, results will come. The team has played best without De Bruyne in the side. Maybe it's coincidence, or maybe he's upset the balance of the side? For those who struggle with intricacies of football and only understand stats, check the stats from the first 5 games of the season before De Bruyne signed.
I would add to that, in the Premier league a 'play maker' needs to constantly show for the ball and be very difficult to take the ball off. De Bruyne despite having many fine qualities doesn't yet possess these particular qualities. The very nature of his game is reactive, he responds to the actions of his own and opposition players. I've not seen many better at creating a chance in a snap, his attributes are almost impossible to defend.
However a team like us, as Shaelum points out that dictate play, commit men forwards in an effort to play to our strengths.
Unfortunately as good as some of De Bruyne's stats are, his retention and possession stats are really quite poor.
It's vital we retain posession when on the attack. De Bruyne and Sterling are both often guilty of gifting possession cheaply and as we are not exactly solid or disciplined in midfield we heap pressure on the back 4.
When the likes of Silva, Navas and Nasri or even Ya Ya occupy the creative roles we look much more solid in possession and in turn in defence. Granted non of those three can have the explosive input that messers Sterling and De Bruyne can have but in my opinion we look much more solid and cohesive as both an attacking and defensive unit.
Is De Bruyne an excellent talent? Yes. Does De Bruyne possess the ability to turn any game on its head? Win any game? He sure does. Are City at our best with him in the team? Not for me.