The stamina bar is simply a unglorified ATB gauge from FF13, SE needs to plan more carefully that putting the all class abilities does indeed cause a bottle neck like i read in some these other posts. The bar could be improved, but SE needs to admit like someone said before: server lag, UI lag, animation lag puts a huge damper on tank jobs to perform without waiting 20s between sequences of abilities that keep hate, cover PT members, etc. The key is to balance the bottle neck. I mean provoke and taunt and other relevant JA should be removed and go to timers. Main JA should be instant abilities otherwise by the time u get all your buffs stacked the mobs dead anyways.
The stamina bar should apply to melee type attacks and ones that don't need to spammed for delay purposes. I mean really though, either way its a timer.....do we need a fancy timer that doesn't tell time right?? Either that or drop back to weapon delay. Just because you can make something fancy, only makes it that...fancy...