The chairman of the Chesterfield County Board of Supervisors, Dan Gecker, a developer skilled in the art of tax-credit financing, is a proponent of rational growth in a county long run by good old boys. Gecker has become the voice of reason, distilling debates into rational, depersonalized political choices. But be careful what you wish for, Chesterfielders: Gecker's support for boondoggle-in-the making SportsQuest led the county to invest $4.3 million in a jarringly flimsy business model. He's playing with your money now.