Thomas Greco has been named president, PepsiCo sales/chief customer officer at Purchase, N.Y.-based PepsiCo Inc. He will be responsible for sales of food and beverages across all channels, and succeeds Al Carey, who has been named president and chief executive officer of the Frito-Lay North America division... John Lennon, president and chief executive officer at Pyramid Brewing Co., has resigned from that position. Scott Barnum, a member of the company’s board, has taken over that post... The Wine Institute has selected Mendocino Wine Co. partner Paul Dolan as chairman for the 2006-2007 financial year. Jay Indelicato of Delicato Vineyards was named first vice chairman and Margaret Duckhorn of Duckhorn Vineyards second vice chairman. Raymond Chadwick of Diageo Chateau & Estate Wines was named treasurer, and Tom Klein of Rodney Strong Vineyards secretary... J. Ronald Frump has been named president and chief executive officer of Mile High Deep Rock Water Co., Denver... Castle Brands Inc., based in New York City, has named Con Constandis managing director, Americas and senior vice president of strategic planning... Triple A Products, Boca Raton, Fla., has selected James M. Lee as chief operating officer.