Camera crews are usually independent contractors who travel to shoot games, and not necessarily employees of the network.
Yup. Typically, though, the majority will travel with a given package (ie, the Tuesday 8pm game). Lets face it -- the Tuesday night crew probably isn't an A+ crew. Lots of weird switching errors in the game, too (half-cross-dissolved shots, etc.).
Also, welcome NIU. I'm guessing if things fall as they seem they will, we'll be seeing you for the next couple weeks. You guys have a very complete football team, from the games I've been able to watch. If we do play, I think the teams styles should produce an entertaining game.