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Nov
1st,
2007 - Page Updated at 9:45am
Scott Spreitzer - NFL Stats: Proceed
With Caution
WagerOnFootball.com
I noticed something pretty amazing when I
was browsing through the NFL stats late last
week. I was focusing on pass defenses, because
the ability to keep teams from moving the ball
downfield through the air is one of the most
vital skills a team can have. That's particularly
true down the stretch of the season when many
games are won and lost based on what happens
in two-minute drills at the end of the first
half or the game.
If you watched the recent Minnesota/Dallas
game on TV, you heard the announcers spend
literally the whole game talking about how
Minnesota had the worst pass defense in the
league. Tony Romo was on pace to set a record
for completions. The Vikings had no hope to
be competitive if they couldn't stop the pass.
That kind of stuff.
When the game was over, Romo did have good
stats. But the Cowboys only scored 17 points
on offense all day (seven more came on a blocked
field goal return). Any defense that holds
the Dallas attack to 17 points is doing a great
job, not a bad job. Why weren't the announcers
focused on that?
Then, a few days later I was looking at the
defensive passing stats. Minnesota was the
worst in the league in total yards allowed
per game. But it wasn't as bad as it seemed.
In fact, you could make the case that #32 Minnesota
had a better pass defense than #2 Denver!
Check it out (all stats through the first
8 games for each team):
Opponent's QB Rating:
Denver: 99.2
Minnesota: 89.5
Opponent's TD/Interception ratio:
Denver: 11-6
Minnesota: 9-7
Average Yards per Pass Attempt:
Denver: 7.8
Minnesota: 7.3
Sacks:
Denver: 13
Minnesota: 16
Total Points Allowed per Game
Denver: 27.3
Minnesota: 19.0
Isn't that amazing? Across a full spectrum
of stats, there's no way in the world Denver
has a better pass defense than Minnesota does!
The Vikings have more interceptions and sacks,
allowed fewer passing touchdowns, allowed fewer
yards per attempt, forced a much lower passer
rating on opponents, and the net result was
that they were allowing less than 20 points
per game overall while Denver was allowing
more than 27 points per game.
Yet Minnesota was "ranked" as the
worst pass defense in the NFL, while Denver
was second best. You've got to be kidding me!
This is why you've got to be careful with
NFL statistics (and with the things announcers
say on TV!). Pro defenses tend to prioritize
one element or play or another. Some focus
on stopping the run, and don't mind giving
up passing yardage that moves the ball between
the 30's but doesn't hit paydirt. Some teams
focus more on protecting against the long ball,
and give up yardage on the ground as a result.
It's possible for a good or average defense
to look horrible in an area they aren't prioritizing.
But, that doesn't mean the defense as a whole
is horrible, or that this particular area is
ready to be exploited in a way that really
matters. Dallas had a good passing day against
Minnesota. Yet, they only scored 17 offensive
points when the Vegas line had projected about
28 (line of 9.5, total of 46 means a projected
score of 27.75 to 18.25). It was a great defensive
game for Minnesota, not a bad one!
Whether you're evaluating defenses in pro
football, you need to take a comprehensive
approach so that you can really pin things
down. Don't focus so much on passing yards
allowed, or rushing yards allowed. Look at
TOUCHDOWNS allowed! That's what defenses are
trying to prevent. Look at total points allowed
(because field goals can add up too). Look
at high impact plays like sacks and takeaways.
If a team allows 50 yards on passes then takes
the ball away, it's the same as allowing 20
yards and forcing a punt. That's another one,
look at how many times they force an opponent
to punt.
You'll find that different defensive strategies
can yield the same kind of quality results.
You'll also find that really bad defenses will
have some stat area where they look good. Don't
be fooled!
Do the same thing when evaluating offenses.
Look at the stuff that matters on the scoreboard,
not the stuff that looks good on paper when
taken out of context. Too many fans are worried
about fantasy league stats. Picking winners
is going to be just a fantasy if you don't
know what's really happening on NFL football
fields!
Article Used By Permission
From: PicksOnline.com
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