Tanks can trade survivability for DPS/hate generation with VIT and STR

Healers can trade healing power for DPS with DET/CRIT and ACC (Coil only)
(WHMs can also trade any of that for "endurance" with PIE)

What about DPS? And Astrologian who doesn't need ACC to increase DPS? (card buffs can't miss right?) Can they trade in some secondary stats for ... say stats that help with boss mechanics?

E.g. movement speed, damage reduction(BiS for DRG), offgcd cooldown reduction etc. You can create a specialized gear spec to "pick up" forced targeted damage mechanics. Of course it doesn't have to be stats to do this, but I think this offers a good tradeoff by making the DPS and healers' jobs easier.

Currently, DPS can trade between DET, CRIT and speed but these aren't much different from each other because they are all stats for DPS (and so they all have to have roughly the same potency otherwise people will just pick one). VIT doesn't work because healers still have to heal through the same amount of damage and the damage lost through losing main stats (STR/DEX/INT) is just too high.

Astrologian is another problem, do they get to deal out damage (as expected to do in Alexander hard) for free by buffing the DPS, while the other healers need ACC? Perhaps this effect will be weaker compared to the other healers' direct DPS?

Thoughts?