Same personnel but a lot of mystery

And with the 2009 incarnation of the San Francisco 49ers - a team that I've watched in the offseason and training camp more than any of the other 14 previous versions I've covered - I'm already pretty sure I don't know what I'm talking about. There has not been much turnover in personnel. I'm projecting that only five players in uniform for the 49ers on Sunday - and no starters - will be players who are completely new to the organization. But that familiarity only makes things more difficult to gauge just how the 49ers are going to fare this season. The exhibition season did not supply any answers. That is why today's game against the Cardinals, last season's NFC representative in the Super Bowl, should be enlightening. Offensive line: The same starters are back in the same spots. The only player added to the mix is veteran Tony Pashos, and I'm not sure exactly where he fits in. After all, he is a right tackle. Backups have to be a lit...