Tesco boss Dave Lewis’ revelation that he would be stepping down from the supermarket giant after five years at the helm stunned the sector.

Adding to that sense of shock was the announcement that Ken Murphy, most recently chief commercial officer and president of global brands at Walgreens Boots Alliance, would take the reins as his replacement. And he has big shoes to fill. 

The Tesco that Lewis is set to hand over to Murphy next year is a very different business to the one he was parachuted into five years ago.