the one who is most efficient

"During the period of occultation of the infallible Imam (A), the one who is most efficient and best of those who enjoy the requirements is to assume the leadership of the society and by holding the highest post of the government, he is to organize its organs and direct it toward perfection."

SOURCE: A CURSORY GLANCE AT THE THEORY OF WILAYAT AL-FAQIH | AYATOLLAH MISBAH YAZDI (R)