You said he and a 19 yr old kid with 4 or 5 appearances for the 1st team. Can do the same job as Carvalho. My argument was they can’t, as gana is not a natural defensive midfielder, who sits in front of the 2 CB’s. He’s not disciplined enough to play that role. And he’s not good enough to play the box to box role.
Gana is a natural defensive midfielder though.
He doesn't lack the discipline to play there at all. It's just too often he's been asked to be the player that pushes forward from midfield (mainly because Schneiderlin doesn't have the legs to do it).
When he's tasked with being the sole defensive player in the system, he's excellent. Ask him to be the player that instigates our moves and you're negating a huge part of his game.