Mets COO Jeff Wilpon has been running Sterling Project Development, helping develop stadiums and arenas. : (Bloomberg)—New York Mets fans complain the team’s owners don’t spend enough on expensive free agents. In Chief Operating Officer Jeff Wilpon’s other business, clients appreciate a frugal streak. For the last decade, Wilpon’s been running Sterling Project Development, charging a fee to develop stadiums, arenas and other complex projects. Wilpon says he’s leveraged his relationships in sports and reputation for delivering projects under budget to win business from the Green Bay Packers, New York Islanders and other pro franchises.