Why is that?

 

6 teams sit with perfect records, and 4 have imperfect records.  Why?  I decided to take a look at contributing factors.  Clearly most at the top have good QBing, but there are other fators as well.

The ones at the bottom?  Well, they're just bad all the way around, except for KC which has suffered from a lot of bad luck,

 

	QB	Run Game	Defense	Special Teams	Coaching	Comments
Saints	Excellent	Very Good	Very Good	Very Good	Good	The Saints rally behind Brees and believe in themselves
Giants	Very Good	Excellent	Very Good	Good	Very Good	One Manning is having a lot of success on a team that works hard and knows it can win
Colts	Excellent	Good	Good	Good	Good	The other Manning is the best QB in the game.  Period.  Everything else falls behind that fact
Broncos	Good	Good	Good	Good	Good	A lot of luck has led the way, but getting rid of Cutler was a stroke of genius, and now Brandon Marshall is a "convert" to the philosphy
Vikings	Very Good	Excellent	Very Good	Good	Good	A healthy Brett Favre is a great thing for a few games.  The run game is what powers this team.  And the defense doesn't hurt
Jets	Good	Very Good	Very Good	Good	Good	Ryan's defense is the catalyst, but I still have my doubts about the consistency of Sanchez
Bucs	Bad	Average	Average	Bad	Average	There's a lack of talent on the team, a new coach, and a new QB
Titans	Mediocre	Very Good	Good	Bad	Average	Coaching may be part of the issue here: why stick with Collins through 0-5?  But special teams certainly is a critical factor.
Rams	Bad	Good	Bad	Average	Average	They also lack talent, and a new coach
Chiefs	Mediocre	Good	Average	Poor	Poor	Cassel made the most of his time in New England and benefitted from the schemes and support players.  That's not quite enough in KC