Depends on how you define the job. Technically, the an animator is the person that makes characters come to life, and makes objects move - his only job is, like word suggests, the actual animation. In the company where I work, there are seperate people for the modeling, the rigging and character set up, the texturing, the lighting and final rendering, and post production stuff like compositing, sound mix and sound effects are even done outside of the studio - people are rarely equally good at all aspects of the job. There's usually also a technical director (or TD) supervising the most tedious technical aspects of the character set up, fixing problems where they occur, and there's an animation director to make certain the animators aren't doing individual scenes, but are integrating the scenes into the story. In professional productions, each of the seperate stages are done by experts in their field - which is mostly why individual artists have to struggle so hard, since they have to do everything by themselves, and still want their scenes to be good in every aspect...