अर्धगुणहीनः शासनहरः ॥ कZ_०१.१६.०४ ॥
ardhaguṇahīnaḥ śāsanaharaḥ
An envoy who carries the king’s instruction may be deficient in up to half the ideal qualifications (yet still be employed for message-carrying).
Task-fit staffing: for low-discretion duties (message delivery), the state can use a less-than-ideal agent, conserving higher talent for higher-discretion missions.
Limit discretion: a mere message-bearer executes a bounded function, so competence requirements can be lower than for negotiating envoys.