Massengo and Korey Smith different midfielders imo. Smith much more of a Kalifa Cisse type, break up the play to allow others to show their attacking prowess.
Massengo has flair, has attacking prowess but hasn't scored a goal for us in nearly 100 games. I know he is a decent player, but that's poor for a player of his talents. I don't view him as a Korey Smith type midfielder, he is far more talented on the ball than what Smith was.