What if we got the Sub-Job System in FFXIV?

[Kazrah]

I would consider the Tactics system to be subjob. It wouldn't work in an MMO, but you still took a bunch of skills from one class, in addition to picking up a couple more (few?) from others. That first option was the sub-class.

That was the cross-class system pre-SB. It worked for a little bit, but it was much worse with that "illusion of choice" problem than the current role system.