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
Work Capability Assessment from start to finish by Professor Harrington and to run in parallel with his annual reports for Parliament — to look at the WCA. This 'evidence-based review' did not publish its findings until December 2013 — three years after it had originally been conceived — by which time most of the Incapacity Benefit reassessment programme had been completed. The review concluded that the proposed alternative assessment was less accurate than the WCA and that "the WCA produced consistent results on the whole, and is an accurate indicator of work capability as compared with expert opinion". DWP ministers decided to replace