And yet they still won 4/6 games, and even had a chance to win the CIN game with about 1:30 left in the game, until the pick six sealed the deal.
Manning also had a 64% completion percentage or better (70 percent twice) in 3/6 games as well, so even his worst performances are still likely to put DEN in a better place then they'd see with anyone else playing QB.
No doubt that Manning looking different in the second half of the season last year. The big question is how much the injury comes into the equation. I suppose we won't know until this next season though.