Oh harbl. I'll never cease to be amused by people's generalities.
Regardless, the real issue then just seems to relate to a bcnm-esque problem of needing certain jobs for specific fights. What we'll have to do then is determine the patterns of the items we are aiming for and concentrate on that path, thus determining the demand for which jobs, etc.
A fair assessment of mages and tanks are done, but we still need a buffer proper puller and a backup tank from what I read.