For me to be convinced the Lions have what it takes to beat the Packers, they're going to have to start Dominating, not overcoming.
The Packers have dominated every game this year even when their defense is giving up 400-500 yards a game. Best QB in the game right now, with a receiving corps that leaves you little hope and a pair of powerful running backs. Cover Jennings, Nelson beats you. Cover him, Finley beats you. Cover him, Jones beats you. Cover him, Starks or Grant pound you. Score, Cobb is waiting to run it back. And if you manage to cover everyone, Rodgers runs for 10-15.
The Lions are a tough team, but I don't see how they can do any better, and this is a big maybe, and that is split the series with Green Bay. They will be a WC contender if they don't have their patented mid season meltdown, but too many come from behind wins tells me they aren't going to win the division.