But the investigations come at a difficult time for Tesco as Lewis is attempting to turn around performance in the UK and manage ailing businesses overseas.
The benefit to being a private equity fund right now is that private equity investors are not clamoring for month-end numbers and demanding to know what the fund will do differently to turn around performance.
Clarke is under pressure to turn around performance at the chain, which has been the worst performer of Britain's big four supermarkets this year.
Selig is being passive aggressive in his response, an inappropriate one considering his track record around performance enhancing drugs.
Bruno Monteyne, an analyst at Bernstein Research warned that Morrisons would not turn around performance in the short term.
The asset management firm Legg Mason is searching for a new leader after its chairman and chief executive, Mark R. Fetting, decided to step down amid struggles to turn around performance and retain client money.
