I absolutely agree with you, it should go without saying. I was simply asking the original poster a question, when he said the following:
I was simply asking that, if he gives a threat up front, from headers and set pieces, should a case be made for him to be a regular starter, while along with that he is a liability? That's all. Simple question. You seem to be misunderstanding it and getting bizarrely worked up over it.
The way I'm reading Wolverine's post (and I may be misunderstanding his) is that a case can be made for him to be a regular starter, due to the fact he is a danger from set pieces.
I don't believe that's the case. Disregarding the technical ability thing, as I think plenty of players are crucial without great technical ability (Steve Bruce was one of my favourite United defenders), even if he is showing a threat up front, if he's dismal in other areas, he a case should not be made for him to be a regular starter.
At the moment, it's a moot point. He's done enough in the past few games to be starting, fair play to him.