Nzog is simply having a run of poor form which can happen. he is in a new team, is still getting to grips with how we play, and is getting to know how his fellow players play, what runs they make etc.
Yes, he is playing poorly, yes his confidence is shot, but we need to give hime time. I understand fans expect our players to give 100% and if they aren't playing well to get some stick. He seems to be bereft of confidence at moment. It looks as though he is in 2 minds whether to run with ball or make the pass. He may simply be trying to hard at the moment.
I hope he turns it around and becomes a success at the Villa.