Criticism of the Work Capability Assessment oversaw the study" and named the lead experts as a professor of psychiatry, a consultant psychiatrist in learning disability, a professor of rheumatology, and an expert in human resources. The review's conclusion was that "the WCA produced consistent results on the whole, and is an accurate indicator of work capability compared with expert opinion". But the following year the firm that had carried out millions of WCAs on behalf of the DWP since 2008 said it had come to the conclusion that "in its current form, the WCA is not working for claimants, for DWP or for Atos Healthcare". The
Incapacity Benefit and cognitive descriptors" but the DWP's own doctors were not convinced by the evidence presented. The department decided to set up an 'evidence-based review' to look in more detail at the proposed changes, which concluded that the existing criteria "produced consistent results on the whole" and that the WCA was already "an accurate indicator of work capability as compared with expert opinion". DWP ministers replaced Professor Harrington once he had submitted his third annual report in 2012. In 2013, "The Guardian" quoted Professor Harrington as saying: "I would have preferred to do a roll-out [the IB reassessment] in the second