This week we're joined by Roger Davies,  CPO from M&S, John Lewis and deliveroo - a great selection of British institutions.

I spoke to Roger about:

• The most important thing he learnt in his career
• His leadership philosophy
• What skills we need for the future of procurement
• What does the future hold for procurement
• What he dislikes about procurement
• Which book changed your thinking about procurement
• How Procurement has changed in the past 30 years