No tactical nous.
We play one way and one way only.
And if that way fails, we continue to play it.
Wengers weakness, well one of them is that he has too much belief in his squad of players to come good so that he doesnt concentrate on the oppositions weaknesses and how to exploit them or their strengths and how to counter it.
He fully believes that if we play our way then we will succeed. Worked domestically til 2005 but never in Europe