There is a trend amongst City fans to assume that a deep lying midfielder has to be a hard tackling De Jong like player or a player with an engine like Fern or Milner but it could be a technical player like De Bruyne. Guardiola played in that position. Players like Alonso and Javi Martinez played a deep midfield role for Bayern so I could see De Bruyne playing there.
I prefer him using his running power and passing in danger areas but when you have players like B.Silva, David Silva etc in advanced positions, it might make sense to use him in a deeper role.
Yes the DM can be a technical player but the crucial error you make imho is perceiving that you can do this withought having any defensive oriented ball winning midfielder present somewhere else in the midfield. Usually when the option is taken to have a deep lying playmaker then there still will be a Fern type of ball winning midfielder somewhere else in the midfield, often in the CM role.
When on the attack usually one midfielder stays back somewhat to recover lost balls or kill counters when need. Thats simply where you will typically atleast need 1 defensive oriented type of player. You don't want to give KDB this role because it wastes a lot of his skills if he is not given more freedom to roam and attack even if it makes sense for reasons to start him from the DM position.
Totally agree - KdB's wasted at DM. Much rather try Delph there, or work with Zinchenko - he's pretty close to being a great option at DM.
Not nessecarily but he could be wasted there if he's not given a very fiting role when starting from that position AND when not been provided enough defensive cover when moving forward.
Practicly speaking KDB must be given the "roaming playmaker" when in the DM role, a very free role that simply starts from deep.
I doubt that anyone would be against KDB starting in the DM role providing that it doesn't restrict him from playing his part in the attack all the way up to the box. That simply requires having capable people covering his back then.
The problem however with a midfield 3 made up of 2 Silva's and KDB is the question "which one will be the one expected to stay back for defensive duty?" knowing they all like to attack and would be rather wasted on purely defensive duty.
Knowing that someone has to stay back, then he can just aswell be a prefferably athletic and great on defense given what he will be doing. And if possible it would be nice if he is fairly technical aswell or perhaps even has a good long shot. A type of player like Fernandinho is exactly what you want for this and it has proven its value?
KDB is great at orchestrating killer counters and that usually starts from the DM position, thats the more compelling reason why you want him positioned there providing that it doesn't inpact his attacking contribution