By Omowumi Omotosho     President Bola Tinubu has approved the appointment of Mrs. Didi Esther Walson-Jack, OON, as Head of the Civil Service of the Federation, with effect from August 14, 2024. Mrs. Walson-Jack was appointed as Federal Permanent Secretary in 2017 and has served in several Ministries. An esteemed alumna of the Federal …