This guy sounds more like the people we've encountered in our careers who seem to get by entirely on confidence and bullshit. All he needs to do is find one vulnerable company that has a weakness in its hiring chain, nestle in, and schmooze his way as fast as possible to a Director or some other "thought leader" job where he doesn't have to write code. It's a tried and true strategy.

Usually the schmoozers don't take such an aggressive route right from the start, but I can see it working on a certain type of company.

In the rare chance that "Adam" was, in fact, as good as he said he was, you still dodged a bullet because nobody wants to work with a brilliant, arrogant jerk, no matter how good he is. Someone could have the demonstrated programming skills of Linus Torvalds and John Carmack put together, but if he acts and talks like "Adam" I'm not going to hire him.