Quote Originally Posted by Shurrikhan View Post
While I enjoy performing positionals, I don't think they're a very sensible mechanic overall, at least as they're presently implemented, so if there was such an ultimatum between the two, I'd have to go with boss positions being important. That said, I don't think there would be an ultimatum so long as enemies weren't so quick to give up the illusion of being mobs, with limbs and eyes and a main body and so forth, instead of simply a spinning cylinder.

If mobs could just turn at visually reasonable rates, we could start to work even tank positionals into combat. Add to that stagger and an improved DR system for CCs and we could absolutely still support positionals, and likely more intuitively, even while letting boss positions matter.
I was speaking more along the lines of things like pulls, pushes, immobilizations, and the like.

Actual flank/rear type stuff seems the kind of thing a tank would open up rather than exploit themselves, but for the sake of argument, what if tanks had actions that created this windows of vulnerability that they themselves may not be able to exploit but the party can? It might even be the defining feature of a less offense oriented tank, creating a vulnerability on one of the target's 4 facings (Front, rear, left flank, right flank), and you coordinate around a team to really abuse it.

For instance, it lasts for just one action, so the action that hits it you want it to match in characteristics as much as possible. Auto crit, resource refund, +potency-per-hit, that sort of thing.