Cafodd y Grwp Gorchwyl a Gorffen ei sefydlu ym mis Medi 2015 er mwyn datblygu atebion ymarferol i argymhellion nifer o adroddiadau a awgrymodd sut y gellid cryfhau'r ddarpariaeth EOTAS bresennol yng Nghymru. Cadeirydd y Grwp oedd Ann Keane, cyn-Brif Arolygydd Estyn.  Roedd y grwp yn cynnwys cynrychiolwyr o Lywodraeth Cymru, awdurdodau lleol, ysgolion, Unedau Cyfeirio Disgyblion, Estyn a Swyddfa Comisiynydd Plant Cymru.
Chaired by former Estyn Chief Inspector, Ann Keane, the EOTAS Task and Finish Group was established in September 2015 with the purpose of developing practical solutions to the recommendations of a number of reports  which highlighted where current EOTAS provision in Wales could be strengthened. The group included representation from the Welsh Government, local authorities, schools, Pupil Referral Units (PRU), Estyn and the Office of the Children’s Commissioner for Wales.