In a week when two of the UK's Big Four issued sales numbers, it is perhaps unsurprising that the spotlight should shine on how their respective CEOs see their businesses performing. Away from Tesco and Sainsbury's so-called "row", the usually taciturn Carrefour insisted it would not quit "growth" markets like China and Brazil, while some saw the imminent sale of Dutch retailer Super de Boer as providing some relief to Carrefour's domestic rival, Casino.