Marks & Spencer has poached a new finance chief from sandwich maker Greencore with a golden hello worth up to £2.5m. Eoin Tonge will join the retailer in June and has vowed to help make M&S "special again" following a long slump in performance. He will be compensated with up to £2.5m in Marks & Spencer shares after giving up the right to Greencore stock which had been coming his way under various bonus schemes. M&S is expected to decide how much to hand out closer to the time Mr Tonge joins, taking into account financial targets. He replaces interim finance boss David Surdeau, who was drafted in just last month following the sudden departure of Humphrey Singer after just 14 months in the role.