[nimajneb]

Some of them had experience in map making and modding though, correct? I don't know if Dario Casali had a CS degree at the time or if he does now, but he was making Doom maps and contributed to Final Doom prior to being hired at Valve. I think he had economics degree at the time. He recently did a play through of HL with him giving commentary and realy fascinated, definitely watch that. He talks about how a bunch of them didn't really know how to make a game and somehow they did it.

That doesn't take away from a bunch of inexperienced people making an awesome game though. That was hard to do I'm sure. I couldn't even dream of accomplishing that.