They are not very good at the back but they've got the attack firing again they've got 2 very good strikers who are scoring and working together which can cover up a lot of problems.
The big problem for them is they've probably still got to many players for the number 10 positions Ozil, Mkhitaryan, Ramsey & Iwobi all kind of need that free role and it seems they've made the decision to let Ramsey go for nothing rather than give him the super money contract but that still leaves 2 big earners not in the team together.
To me they're looking like Arsenal again which is a team that can compete for top 4 but not for the title which is at least a step back in the right direction but there's still quite a few missing pieces to put in place.