Although each candidate was supposed to be interviewed for an hour, some interviews took as long as two hours before JSC announced Frida Mokaya Boyani as the candidate chosen.
Senior county staff in Nairobi have been directed to seek clearance from Governor Sakaja before addressing the media.
TSC CEO Nancy Macharia called on the teachers to apply for promotions, saying interviews will start on December 4. She regretted that in the past the exercise attracted few applicants.