"That is a challenge, because yes, people are used to the damage/healer/tank dynamic," Tornquist admits. "In certain situations that dynamic will still exist, it's just a case of making sure your group stacks the deck of cards the right way, if you see what I mean. You do need this set of abilities, or this or this, but the main difference is you're not stuck being the healer or the tank."
See that's what turned me off of WoW. If you play a Tank, you have to always play a tank, and always have to do X when playing a tank. Rinse, repeat. boring.
If only Asherons Call was still around, they could show them how a good MMOG could be.