I don't disagree with much of that but I would ask when did Murphy last beat the full back and get in a decent cross. He doesn't do it anywhere near enough considering his talent but certainly there are plenty of players who have had disappointing starts to the season so no need for a witch hunt...
I think Murphy is a better player than he believes he is. He doesn't seem to have the confidence to try and beat the defender and so too often doubles back and the momentum is lost. I do think he's got it in him if he just believed in himself but until he does that he constantly disappoints for me.