The New SGF Mr Boss Mustapha from File Photo; SUNDAY AGHAEZE/STATE HOUSE. Posted on October 31, 2017 PRESIDENT BUHARI AND NEW SGF BOSS MUSTAPHA. 1. President Muhammadu Buhari and The New SGF, Mr Boss Mustapha File PHOTO; SUNDAY AGHAEZE/STATE HOUSE PRESIDENT BUHARI AND NEW SGF BOSS MUSTAPHA. 2. The New SGF, Mr Boss Mustapha and other APC Party Chieftain. File PHOTO; SUNDAY AGHAEZE/STATE HOUSE