Criticism of the Work Capability Assessment group of experts — a professor of psychiatry, a consultant psychiatrist in learning disability, a professor of rheumatology, and an expert in human resources — reviewed the WCA in 2013 and concluded that "the WCA produced consistent results on the whole, and is an accurate indicator of work capability compared with expert opinion". But in the year that the study was published, the firms running back-to-work training for people on ESA said they had "ongoing concerns about the accuracy of the WCA". And in 2014, Atos announced that it had come to the conclusion that "the WCA is not working
Criticism of the Work Capability Assessment United Nations Committee on the Rights of Persons with Disabilities said in 2016 that despite previous modifications to the WCA, it still paid too little attention to "personal circumstances and needs, and barriers faced by persons with disabilities to return to employment, particularly those of persons with intellectual and/or psychosocial disabilities". In its reply to the United Nations, the DWP stressed the efforts it was making to bridge the 'disability gap' and boost the number of disabled people in work. In 2016, Iain Duncan Smith described the WCA as having been "unbelievably harsh" when introduced under New Labour; the Labour