Again, totally dependant on the guild and how the player and players around them perform. I really dislike when people say this and mention their guild or something (not that you did but it sounds like your comparing). Get a bunch of people together that are really like skilled and are having to have the Shaman on priority target adds and the Ele isnt going to have a great time.
You need to learn how to really push your strengths and really shine at them and maybe, if the raid leader doesnt know, that you if possible are not suited to certain roles.