Ninjas can go a bit crazy on their moves, but be mindful of silence, Jugulate is very important for silencing when necessary.
Monks might have a bit of trouble with their positional requirements, but all you lose is the maximum DPS output, the side effects, buffs and debuffs will all still proc, so its not that unforgiving.

Ninja's 'Vulnerability Down' can hit once every 60 seconds, which lasts for 10 seconds, and if not executed from behind target, it will fail, and good bye Vul-Down for 60 seconds regardless.

Monks can do the 'INT-down' by doing their normal rotation, so expect it to be up in 7.5 seconds in the fight and stay there for as long as it lasts.