The surprise resignation of Campbell's president and ceo has raised fresh speculation as to whether the US soupmaker is up for sale. Dale Morrison, who was at the helm of the company for three years, has been temporarily replaced by predecessor David Johnson, who revived the Campbell's brand in the early 1990s. Analysts are divided as to whether the Dorrance family ­ which owns 54% of the company ­ will sell out. Heinz and Bestfoods are still the most likely candidates for a buyout. Neither would comment on the news. Some industry observers say there is still time for Campbell's to find a new ceo and turn around the business. But the company's second quarter results showed only a small improvement from its "disappointing" sales of last year, when profits fell $50m. Its condensed soups business is also underperforming. {{NEWS }}