Let's be honest, there's a reason he's got three Champions' League medals, but has never actually played in a final. He's just not quite good enough for the very top level. His physical profile suggests a destroyer, but he doesn't quite have that top level anticipation and reading of the game. And while he's good at carrying the ball and has a decent shot on him, neither are good enough to make up for his shortfalls. Hence why wherever he's played, he's been a supporting player.
But he also represents this odd shift in our recruitment away from players that can pass well first and foremost, to players who can carry the ball. Him, Doku, Nunes, Phillips, (apparently looking at Eze last summer) all at their best running with the ball, but with pretty average passing. And we've had midfielders that are good bursting forward with the ball before, like Toure and KDB, but they also had the incredible passing range to go with it. I don't get this shift, but it's quite obvious that they were looking for these sorts of players for some reason.