While 4-2 isn't the end of the world, I'd give them a straight C at this point.
Worse than expected:
O-Line. Yes, the expected line-up didn't start a single game together, but this line looks very average. Bright spot has been RS FR Jackson at LT. He's solid.
D-Line. Our DC was gushing over this line in the pre-season, and there is depth there to rotate, but there is also zero pass rush and they're not exactly formidable against the run.
Secondary. This one wasn't expected to be an area of strength, but nobody back there has excelled.
Question marks that proved to be true concerns:
QB. Efficient at times, makes mostly good short-to-intermediate passes. No touch on deep ball, has missed no less than 7 TD bombs in 6 games. Only 2 picks on the year, but fumbled 5(?) times.
Punter. We didn't know what to expect, and my god, it's been bad.
Better than expected:
Kicker.
WR? They're an upgrade over previous years, but still not striking a lot of fear in opposing secondaries.
About as expected:
TE. Good, not great.