Former Tesco boss has cheered the markets by taking helm at Guinness owner, but there may be forces he cannot overcomeDiageo names former Tesco boss to lead turnaround pushOn landing a new job, nothing puts a spring in the step like knowing that news of your appointment has inflated the stock market value of your employer by more than £2bn.Dave Lewis could be forgiven for keeping that confidence-boosting figure front of mind as he faces up to the challenge of reviving Diageo. Continue reading...