The difference is that I made my assesment based on what we did last season until final match of preseason. Our back 4 consist of Azpi, Ivan, Cahill, and Terry are very solid. If you asked me about our defender performance this season so far (4 match), I am agree with you. About Luis, unfortunately it is not me nor you are the boss. Jose is the boss, he knows the condition inside the team, we don't know what's the problem and I trust his choice. I think, whatever the problem Luis have at the moment, or how good Luis was last season, Jose feel he is not ready yet. That's why Jose still stick with our main back 4 for the first 4 match, despite some of them have already made some mistakes, I believe they are still the best choice at the moment, if Jose think so. Also who can guarantee if Luis replace one of them, we will not conceded a lot of goals against the likes of Everton and Swansea? Nobody. Yes we made some mistakes that should not happened, but Everton and Swansea are in their best performance too. We are not playing against Qphaha or something, who is the shittest team in the league.