She said: "It has been a real privilege to work alongside the great social reformer, Iain Duncan-Smith MP, during my time as Minister for Employment. Since coming to office in 2010, he has made a real difference to the life chances of people throughout the country by reforming the welfare system to ensure that work always pays. The fact that over two million more people are in employment than there were in 2010 is a testament to his commitment to help people aspire and achieve their potential."