Tesco turnaround under Dave Lewis (2014-2020)
Weeks after Lewis took over Tesco, the UK's largest grocer admitted it had overstated half-year profit by £263 million. He cut costs, reshuffled management, closed stores, and restructured the balance sheet.
Tesco stabilized and, in October 2017, paid its first dividend since 2014.
Sales growth stayed modest, and the chain later lost ground again to discounters like Aldi and Lidl.
Lewis is running the same playbook at Diageo — cut costs first, then invest. The Tesco outcome shows cost-cutting can stabilize a company but doesn't by itself restore demand growth.
