I would like the jobs to each branch of skill wise bc as the level increases in the game the more skills we get and less room. Easy way to fix this is have all jobs basically have to different play styles or have them branch off to two different roles. The one thing of ff11 was that i liked was that even tho a played as a red image I was different from my other peers. example let's take bard. And give it two play styles.

Bard
Marksman - Dps bard will stay the same(focus on dps with bow)

Songcraft- Healer bard will focus more on music to heal allies and weaen the for.

So basically you could play as a bard and go either role.