Working with someone that thinks he's a dev but couldn't program a hello world if he tried. Turns a small project into a huge headache.

I'm currently a senior in Computer Science at my university which I would argue has a fairly good computer science program. The amount of students that could barely write hello world by the end of their freshman year was astonishing.

But how? What does he actually do? He comes in to the office and sits down and does not write code? How does that work?