I wasn't meaning we should only look at nDPS and aDPS. More so to say that it is the metric usually talked about when some of us say they should top the damage.

Since they have no raid buffs, then their nDPS / aDPS better be high enough so their rDPS / cDPS is still close enough to everyone else. The presence of certain self or raid defensive cooldowns may also affect our decisions on how much cDPS needs to be taxed to make it fair too. Eg. Tengetsu, Mantra, Raise, Shield Samba, Curing Waltz, Troubadour, Nature's Minne, Tactician, Dismantle, etc.