Originally Posted by
Laraul
It's the responsibility of the party founder to make sure every member knows his or her role and what to do. That may mean explaining the fight, for each role, asking and responding to questions, and have an overall understanding on every person is going to do. That's the job of the leader! If the party fails, that means as leader you did something wrong.
How is checking for a clear going to prevent people from joining as a role they not familiar playing as. If I clear something as DPS, that doesn't mean I'll be able to properly function as healer or tank. So the same problem still crops up.