Quote Originally Posted by Canadane View Post
Another would be keeping them facing the same direction for the majority of the time, as to help melee DPS perform positional attacks properly. I've encounter a lot of tanks that simply had no idea that was a thing because they've never played as a DPS class before.
It seems a lot of skill issues come down to players thinking of their own job in isolation and not in terms of how it impacts everyone else's jobs. Sometimes this comes from unfamiliarity with the other jobs and sometimes is just a matter of tunnel vision on what they themselves are doing, but the effect is much the same either way.

Tanks should practice situations where the boss needs to be kept facing a consistent direction, and they need to watch for anyone else (especially healer) picking up unwanted aggro.

DPS classes need to practice not just what patterns give the highest overall DPS numbers, but which can do so without pulling aggro away from the tank. And if they have support skills, they should be in situations where (along with dodging, dps requirements, and handling other mechanics) they have to at the same time watch for when those support skills are needed and use them appropriately.

(I'm not as familiar myself with what healers need, except that they should learn to recognize when it's safe to Cleric Stance for a bit of damage, and when it's not. There's probably also some prioritization lessons that would be useful when heals and esuna are needed on multiple targets.)