Not sure if this is referring to my earlier post but if it is, you have missed the point.
While a playoff may be a better way to end the season, it also has an affect on the beginning of the season. Take this weekend- Bama/Penn St., Fla St/Oklahoma, Oregon/Tenn. Some important games there. What makes them important is the impact they have on a team's chances of making it into a BCS game.
With a playoff based on conference championships all of these games lose their value. Teams can afford to treat OOC games the way the Colts treat pre-season games because winning or losing has zero affect on your chances to make the playoffs. Oregon can come to Knoxville and play all their backups, work on their schemes and timing and completely ignore the scoreboard because OOC games are simply a glorified practice when your conference record is the only thing that matters.