Due to the word limit, I had to cut a lot from my original post, but I wasn't meaning that SMN should be made from DPS into a pure tanking class. I also acknowledged that currently, Titan doesn't have the skills or stats to function as a solid tank, and even if it did, there would need to be changes made to SMN's spells, to ensure that its tanking abilities are equivalent to that of the other tanking classes. Implementing something like a stance change that would allow for jobs to change their roles could alleviate this problem, however, by altering the effects of certain skills and allowing/disallowing the use of others. Furthermore, by making it so that these stance changes could not be changed in duties, it could be ensured that players couldn't abuse them by rapidly changing back and forth between roles. In this way, a party would still consist of one tank, one healer, and two DPS. The only change would be that there would be more options for how people can tank.