The Gunners let slip a 2-0 lead to draw with Boca.
Wenger told arsenal.com: "That we can score goals and Gervinho is a good addition to our squad. He is very interesting because he gives us options on both sides and through the middle. He can integrate well with our team. Also we have some improvements to make in some areas, especially the way we win the ball back. On set pieces we were not convincing today, but overall it was quite positive.
"We can be extremely dangerous on the counter-attack with the players we have, we have Walcott who was not involved today, we have Gervinho and with the midfield we have I believe we can be very quick in the transition to go forwards, so that is always something very interesting. He can add that."