This would be smart business. People should stop thinking in terms of comparisons with other players and think more in terms of how he would compliment others and allow greater tactical flexibility. We should get him and Angelino back as well.
He would certainly add a bit more tenacity and aggression to our midfield which we're severely lacking at the moment. It depends how we want to move forward as a team, I'd be happier with Luiz than Aouar but I can see the benefits of both players.