Newman is from an era where a half back flank had time to have a bounce, line up their target and spot them. This is no longer the case. He seems a bit confronted by this situation of having to instantly sum up and deliver in a quick moment, just before getting buried into the turf by a defensive forward.
He might be captain but he should not be immune to having something different done with him at training. He just doesn't seem to be coping with the frantic forward pressure this year. But I think he is good enough to overcome this.