I know there's a role in the WDW College Program (Maybe regular WDW full and part-times jobs) called a "Hopper" where you get to be trained in Attractions, Merchandise, Quick Service Food and Beverage (Counter Service), Main Entrance Operations, and Custodial. I don't know how often you can get that role though. I applied for it, but didn't get it (I got Main Entrance though!)
In 2007 I did notice a girl who worked It's a Small World and then we went over to Peco Bills to eat and she was there organizing the orders.