Yes and no.
It could be argued that the D played well enough to win the Washington, Philly, and second Patsies** games if Hotrod had been able to do anything late in the game.
Throwing picks, turning it over on downs, and fumbling twice on the same play is NOT good enough to get us to the playoffs. I like a lot of what the kid did last year, but he needs to be much better in the clutch if we are to make playoffs.
Think of Seattle. One of the best Ds, but Russell Wilson brings them back with clutch play to win several games per year.