We could have easily conceded 3 against Leicester, Vardy should have scored the one-on-one, and Huth hit the bar. In a game we absolutely bossed. That's the problem, a game we ran away with in the end could easily have become a problem because of soft defending.
Whichever way you dress it up, defending is a problem for us. It's wishful thinking that we can win the title by outscoring other teams, because there will be patches where we're not firing on all cylinders, or where key players aren't available, and that's when it becomes an issue because our problems will still be there and we might not have the goals to bail us out.
I think Matip is a good addition, but even he isn't without a mistake or too, he went to ground easily in one game that cost us a goal, and he was poor at the weekend. Klavan has made mistakes too, Clyne has cost us in a few games, while the keeper issue is up in the air.
Our system hasn't really changed much, we're still incredibly expansive in our approach, we still fail to defend setpieces well. Until we sort that out, we're banking on too much luck to see us through, like a few years back. I think we will sort it out, or at least improve, but defensively at the moment we're still in more or less the same place as we have been in recent years. 10 goals conceded in 7 games, on that form we're looking at 54 goals conceded over the season. Nowhere near good enough.