Two misc. questions:

Quelling Strikes is obviously useful on pull, but is it worth using any time afterwards? The tanks should have no problems after they get started up, right?

Is it better to stack/stagger buffs or use them one at a time? Every time my DoTs need to be refreshed, I pop a cooldown. I've read some rotation guides saying it's better to stagger them - like Internal Release --> Windbite --> Hawk's Eye --> Venomous Bite --> Raging Strikes --> etc. but I don't understand why that's better.