Considering their poor outings, Arsenal needed more than one signing to increase squad depth and quality still the arrival of Nacho was more important than Villa or any other attacker. Nacho is an experienced left back with brilliant crossing ability that to support in the attack as well.
The Spanish defender is only second to compatriot Jordi Alba in the national side but he is not far away from him in terms of quality.
Arsenal fans are disappointed with the little business done in the transfer window when the funds were available. However not signing Villa is by no means a calamity. In fact Arsenal needed another defender more than a striker.