Here is a question for those who watch both Koke and De Bruyne frequently:
we know that Koke is versatile. He is a CM but mostly plays out wide for Atletico. He is good on set pieces, his crossing is decent. His work rate and graft are his biggest assets IMO
De Bruyne on the other hand is more an AM who can play out wide. Also good at set pieces and crossing. But in recent games he has shown a criminal lack of work rate (inter, the game for belgium when they were down to ten) which is probably no better (or worse) than Nasri
Now, with Koke, you'd probably see something like this (for the moment ignore whether we can get the other players or not)
--------Gundogan/Fernandinho-------
----------Pogba-------------Koke----------
Silva------------------------Sterling/Bale
which can easily become:
--------Pogba---Gundogan/Fern----------
Koke----------Silva----------Sterling/Bale
with De Bruyne, we will likely see:
--------Pogba---Gundogan/Fern----------
De Bruyne---Silva----------Sterling/Bale
If you had to choose between the two, who'd you get?