 In December 2010, the trust announced another interim Chief Executive, Martin Flaherty of the London Ambulance Service.At the beginning of January 2011, UNISON (the only approved union within GWAS until January, when the GMB was accepted) announced the results of a ballot for industrial action.From those that voted, the result was 96% in favour of taking industrial action as a form of protest against the changes implemented during 2010.