I have a soft spot for Kenny, but even from a neutral point of view, I am not too see if getting rid of him is the right option. He has made the right decision more often than he has made the wrong. And I am talking about coaching decisions not managerial decisions like player buying/dealing with a racist incident.
The team he put out there pretty much dominated Arsenal. Its not HIS job to put the ball in the back of the net.
........and its not the first time.
If you replace him with a manager that produce better finishing......then yes.