Hmm, seems to be the same exact location.
http://cms.elderscrolls.com/sites/default/files/tes/screenshots/Cave01_wLegal.jpg
http://i.imgur.com/NUpbZ.jpg
Nice catch. Looks like him and a buddy are sending signals via morse code with the light further down the cavern in the second screeny. I know that isn't the case, but that was my first reaction to his staff in the foreground and the light shining back at him in the background. Wonder if that's the exit to the cave?
Anyway, on topic, I think it would be nice if your staff did something different than what you can do casting spells. Something other than the flamethower, rune, fireball, etc... mode. Maybe you could make it with a PBAOE effect or a wide cone. It would just seem redundant if the staff could be cast in the same modes (fireball, rune, flamethower) as you. Maybe they can only do one mode like a ranged attack. But having a mode other than what you can use as a player might make staves a more viable option other than when your magicka is low.