This.
It's not Nixon's fault we're using him at QB with his limited passing abilities. He's doing what he can, which to be honest, is more along the lines of using his running abilities. He did run for 200 yards as a QB, which is quite impressive. He was by far our most effective option on the ground game.
Problem is, when you fall behind by two and three TDs and need to start rallying, you've got to at least have a THREAT of a passing game. He just can't give us that.