I get what you mean but still you don't want an over-aggressive player in the holding MF player as its easier to pick up bookings and give away needless fouls. Luiz still imo doesn't read the game as well as he could, still dives in when if he could read the situation, he'd probably not give a foul away or whatever. Still good to have him back, his distribution from CB/DM is impressive. Gives us more options and means we are able to rest Mikel/Lampard/Ramires more frequently.