अतः पादार्घगुणहीनौ मध्यमावरौ ॥ कZ_०१.९.०२ ॥
ataḥ pādārghaguṇahīnau madhyamāvarau
Therefore, those lacking a quarter or a half of the requisite qualities are, respectively, middling and inferior.
It encodes a practical grading rule: partial fulfillment of competency requirements yields lower placement and responsibility.