The Cubs are quietly working to amend their proposal to renovate Wrigley Field, according to a report in The Chicago Tribune. They would match its previous tax payments to the city -? $16 million in 2009 -? while keeping any tax revenue above the base for park renovations and perhaps construction of the long-planned triangle building. "The plan they came up with for this renovation was a non-starter," governor Pat Quinn said Monday on "Chicago Tribune Live" on Comcast SportsNet. "It didn't have public support. They have to go back to the drawing boards."