[throwaway34241]

Your boss reports to his boss. He can deny responsibility and blame his team, but normally if he has the power to hire/fire people that's still his problem.

From what I've heard about Valve, it sounds like there's a class of people that can fire you and therefore force you to do things, but you are still directly responsible if things go wrong. So the high-level people have power without accountability, and the low-level people have accountability without power.

That doesn't sound like a bad deal if you enter with a lot of political capital (maybe you are a world-renowned expert or friends with Gabe Newell). Doesn't seem like a particularly great place to work for everyone else though.