Former HBOS chief Andy Hornby has stepped down as non-executive director of Home Retail Group after being announced the new chief executive of Alliance Boots last week.The group said Hornby decided to step down because he felt there would be a "clear conflict by continuing to serve on the board of Home Retail"Oliver Stocken, chairman of Home Retail, said: "Andy Hornby has made a significant contribution to our business as a non-executive director of Home Retail Group plc since we were established in October 2006." "His experience as a retailer and a business leader has been invaluable over the years. He leaves with our gratitude and respect. The Home Retail Group board have enjoyed working with Andy and wish him every success in his new role," he added.