I know other's has quoted you already, but just I need to say, all of the points above are useless, in a pug all that matters is experience and Mythic kills. I can be sure a mythic guy will know what to do, else no way he is at aggramar plus(anything below isn't cutting edge, and honestly are just throwing themselves at bosses IMO)
Interrupts: Only encounter this is done is argus, if you're doing it on any other boss its for sephuz period, you dont do it even purposely on mythic. If you even interrupt at all.
Soaking: Only first boss has it, but its often just assigned to the ranged squad. We have our lowest dps go for it, as the highest ones shouldn't have to do it, since we have too many people. The highest will do it, but if you can have a 1.9mil do it over a 2.6mil why not?
Target swapping: Anything but robots on kingaorth are just passively cleaved down as they don't matter at all. Whilst it'll also favor going pad specs. which also boosts your overall DPS. So padlords are already doing that shit.
Stuns/CC: uhmm. aggramar? But you can just do mythic strat, of perma slowing them, and its under 5 people that get ranking. again useless.
Avoiding damage: ?????
rest, yea I wont go over, you get the point, anything and everything will be broken. DPS and log reading is what matters for mythic, anything below is just dont suck a fat horse donger. We overgear content anyhow, if you do mechanics it dies.