The Deputy Chief Executive Officer (CEO) of the National Youth Authority (NYA), Akosua Manu, has indicated that the appointment of ex-Minister for Environment, Science, Technology and Innovation, Prof Kwabena Frimpong-Boateng, as the chairperson of the dissolved Inter-Ministerial Committee on Illegal Mining (IMCIM) is possibly the biggest mistake made by the Nana Addo Dankwa Akufo-Addo government.