Alright thanks, so heres hte jobs needed:
At least 3 Programmers: 1 for the server, and 2 for the client (or 1 for the client, one for the tools, such as plug-ins for the artists, a world editor, etc.). Having up to 6 programmers is good, more than 6 might be too much. It really depends on your leadership abilities.
At the very least 1 artist, but preferably 2 or 3. If it's a 3D game you will need a 3D artist, a 2D artist (textures, interface, etc.), an animator, and an art department leader. Unless you are a good artist, the art department needs to be kept together and coordinated by an experienced artist.
A few world builders: Building all your maps is a very long process, and it's critical to the game's success. Again, you will need a leader for the world building department. You can't just have anyone making whatever the hell they want since your world design should be consistent.
A webmaster is a must, unless you are really good at web design, and are willing to spend your time making a website. Having a sound and musician is not required, but a game with sound and music can be more enjoyable than a game without it.
A designer of the game's economy. You might think that this is easy, and you can do it all yourself, but in fact it is one of the most complicated things. If your economy is poorly designed (i.e. items not properly balanced, resources put randomly on the maps, etc.) the players will get bored/frustrated and will quit. We had a big problem in one of our early stages, especially because the economy was mainly made by me (a programmer), and it wasn't properly planned. So it took us about 2 months to rethink and re-implement an entire new economy system. This also required a total elimination of the items. Let me tell you, players are usually unhappy when you delete all their items. Fortunately, most of our players agreed with the idea, but it was still frustrating to spend so many hours arguing, compromising, explaining, and, in general, wasting time. But more on the economy later.
