ORCHARD PARK, N.Y. - Now that Daunte Culpepper officially has been ruled out of the exhibition finale tonight at Buffalo, I don't know what to think about the Lions' quarterback competition. A week ago, I thought the odds were that Culpepper would start the season opener Sept. 13 at New Orleans and Matthew Stafford would take over at some point. But I'm not so sure anymore. If Stafford plays well tonight, does he claim the job? Or are the Lions being especially careful with ...