Who should I start this week?

I'd keep your lineup as it is, except I'd insert Jon Kitna in place of Favre, who has a tough matchup against the excellent Denver secondary (Champ Bailey, Dre Bly, John Lynch, and Nick Ferguson). Kitna ped for over 200 yards and 2 TDs when he led the Lions over the Bears earlier this season, so there's no reason to believe he can't do that again. Good luck!