Is there a need for job rolls anymore?

[GIJO]

When the game first started out each job had a specific role (tank/healer/magic dd/physical dd/debuff/etc). The game has come a long way from traditional parties. I think all of these new additions to the game are great. It gives players more freedom in leveling and playing the game in general. But as the levels increased some jobs became very diversified and some are still confined to their original roles...PLD, DRK, WHM, for example. It seems like some jobs have just become situational while other are more versatile and can do almost any content in the game.

This brings me to my question. Should all jobs be given more balance to play a more varied part in the game? Give WHM more white magic attack/enfeeble spells, give PLD more dd properties, give DRK more defensive options like MNK and SAM?

This would increase the freedom of the game and to me the more freedom we have to play the class we like the more fun the game becomes. I know a few people that have stopped playing because the job they liked was no longer fun.

How would you modify the jobs?