Dave Lewis: Tesco share prices jumps as investors bet on new CEO’s strong Unilever record July 21, 2014 Investors have been reassured by the appointment of Dave Lewis as Tesco's new top dog. Despite a profit warning, Tesco's shares sprang up by as much as three per cent as markets opened. Part of that can be explained by the coming departure of CEO Philip Clarke. While he will continue to serve in his [...]