The weak attack last year was part of the poor defence and mid. I would say what we needed to strengthen in order was: Defence, Midfield, Attack.
Insecurity in defence makes you unable to feel like you can attack without jeopardize everything.
Midfield had to cover up defence last year, making us weaker in attack and creating less. We even tried double pivots sometimes, making us create even less.
Its hard for the attack to score if you dont gett he passes needed from midfield. Iniesta had to pretty much do everything alone last year on midfield. Cesc didnt do to much to help him, and Xavi is not the old Xavi anymore.
But as usual, our board only sees attack and buys Suarez. Hes an extremly good player and im happy to have him. But we should have focused on defence.
Ter stegen, Aurier, Benatia or Hummels, Mathieu as backup, Pjanic, Gamble on Gündogan, Suarez. That would have been dream transferwindow. Could have skipped Suarez to afford it.