have to agree with this - murphy is doing exactly the job he was brought in to do, which is score goals when the first choice strikers (gayle and mitrovic) are injured or not in form. i also think that benitez was originally thinking 4-4-2 but has found a 4-4-1-1 / 4-3-3 more effective with one central striker.
it's arguably also the case that murphy has now made himself 2nd choice striker which is quite good going. mitrovic is no mug, scored twice against austria and once v wales in our group for example, and gayle is the player of the championship so far.
murphy has had to bide his time to some extent and take his chance when it came, and fair play to him he is doing that so far.