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 cost to the taxpayer" because the independent tribunals that corrected the wrong decisions, funded by the Ministry of Justice, added a further £50m a year to the costs. The Office for Budget Responsibility (OBR) found that in the period up to 2014, no savings had been made in the sickness benefit budget, which remained at more than £13 billion a year. In 2015, because many more claimants than forecast were now being placed in the Support Group, the government's fiscal watchdog had to raise its estimate for annual spending on ESA by at least one billion pounds. In 2016 the