Arsenal crushed Reading 5-2 to get back to winning ways following their exit in the Capital One Cup to Bradford.
"Our game is based on movement and technical quality and that demands freedom of initiative and, when you are in a crisis, that suffers sometimes," Wenger said.
"But we have to go beyond that and focus on the way we play football. Have we been in crisis? It depends on what you mean by a crisis. If you call it being slaughtered by everybody, then we were in super-crisis.
"In any bad thing, there is a good thing and you discover who is strong and who can remain united. In our job, you have to be mentally strong. It is a test when you have been in a position like we were in."