SLOUGH, UK - Masterfoods has parted company with Juan Jose Perez Cuesta, its European snackfood category president, after less than six months in the role.
   He will be replaced by Andy Weston-Webb, president of Masterfoods in Australia and New Zealand.
   Insiders have suggested Perez Cuesta is departing because he has failed to halt the sales slide in some core confectionery brands, including Mars, Maltesers, Snickers and Twix. The company refused to comment