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jhodges Commentary
Posted 10/17/10
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Commentary: 2010 Mid-Season Report Card: Defense
by Jonathan Hodges
Despite losing some key contributors on defense, the 2010 Wildcats looked to
continue its recent success on that side of the ball that they've seen under DC
Mike Hankwitz. Yes, NU lost Corey Wootton on the line as well as three of the
four starters in the secondary, but NU's recent recruiting success supposedly
stocked the cupboards with talent ready for action. The D also featured three
top tier linebackers, including NFL prospect senior Quentin Davie. In spite of
their issues, the D has pretty much held to form and given the Wildcats a chance
to win each of their games thus far in the 2010 season.
Although
Northwestern's defense hasn't faced any top-flight offenses as of yet, they are
giving up a middle-of-the-road 356.8 yards per game (53rd nationally), but they
have continued the trend of bending-but-not-breaking, as the 'Cats have given up
just 18.3 points per game (23rd nationally). Much of that success has come
thanks to takeaways: NU ranks 22nd nationally with 14 turnovers on the season,
leading the 'Cats to a +5 cumulative turnover margin through the first half of
the year.
The issue has been when those turnovers don't come. In
Northwestern's three games with a positive turnover margin (Illinois State,
Rice, and Central Michigan), the 'Cats are 3-0 and have outscored its opponents
97-41. In the other three games, NU has a total -1 turnover margin, has a 2-1
record, and have actually tied their opponents in cumulative score, 69-69. It's
clear that without that valuable turnover margin in its favor, NU plays in much
closer games.
Also, the defense has had its share of penalty issues,
something that has plagued the 'Cats over the last 3 games heading into the
bye. The NU D has accumulated 16 penalties this season (34.8% of NU's total
penalties), with 11 of those turning into first downs for NU's opponent
(accounting for 10% of opponents' first downs in the 2010
season).
Finally, although the 'Cats have been quite successful at
getting off of the field on third downs (NU ranks 10th nationally in third down
conversion defense, giving up a first down just 29.5% of the time), they have
been susceptible to big plays, giving up 27 plays of 20 yards or longer on the
year and 12 plays of 30 yards or longer. These "explosion" plays by the
opponent were especially noticeable in NU's most recent game, its loss to
Purdue, with over 40% of the Boilermakers' yards coming on two 50+ yard plays,
both leading to Purdue scores. Now, onto the unit
breakdowns.
Defensive Line: B-
Northwestern has been
respectable at stopping the run, ranking 48th nationally in rushing defense
(giving up 140.5 yards per game), but have allowed 4.4 yards per carry on the
ground. Unfortunately, the 'Cats' first five FBS opponents of the year have an
average rushing offense ranking of 71, while the final six average a ranking of
50, including three in the top 30 (NU's only loss of the year came to the only
team they have faced so far that's in the top 30 nationally in rushing:
Purdue).
The problems stopping the ground game can't be completely
attributed to the DL, though, so let's move onto one of their primary
responsibilities: pass rush. NU ranks a disappointing 78th nationally in sacks,
averaging just 1.7 per game. DE Vince Browne leads Northwestern with exactly
half of their 10 team sacks, but he came out for much of the Purdue game,
leaving basically no pass rush threat on the DL (the remainder of the defensive
line has totaled just 1.5 sacks on the year). The DL has also accumulated 14 QB
hurries on the year so far.
Despite some troubling statistics in the
running game and not generating enough of a pass rush, the DL has been
successful in other areas, grabbing 2 surprising interceptions, breaking up 2
more passes, forcing 2 fumbles, and blocking 3 kicks (which were key in beating
Central Michigan, as those blocks essentially took 5 points off the board, the
same as NU's margin of victory).
The D-line has admittedly been dinged up
a bit with injuries through the first half, and have been putting a lot of youth
into the fire, so one hopes that the 'Cats will see improvement from the line in
the second half as they have more experience and
health.
Linebackers: B
The LB's take some of the blame
for the run game issues detailed above, but they have been quite active in the
passing game, with Quentin Davie grabbing 3 INTs and breaking up 2 additional
passes. Ben Johnson and David Nwabuisi have also tallied an interception each,
while the LBs have totaled 6 pass break-ups. Those numbers against the passing
game have been big reasons that NU ranks a very respectable 24th nationally in
pass efficiency defense, despite giving up 216.3 yards per game through the air
(71st nationally, and that's even after playing Purdue who had just 47 yards
through the air).
The Northwestern linebackers have generally been doing
their primary job: tackling. NU LBs account for 124 tackles on the year, 33.9%
of Northwestern's tackle total for the season thus far. Nate Williams ranks
second on the team with 39 total tackles, and that despite being rotated out in
favor of Nwabuisi on most passing downs.
There were definitely high
expectations for this unit heading into the year, with three experienced guys
backed up by even more talented players, and thus far they've somewhat
underwhelmed, especially against the run. And, as mentioned in the defensive
summary, they have been responsible for some of those big plays yielded by the
NU D, as all it takes is one LB to be slightly out of place for a run to go a
long way. Hopefully this is an area where some basic corrections can be made
during the bye week and this unit that features both talent and experience can
put the pieces together for a solid second half.
Defensive
Backs: C
Northwestern had a lot of talent and experience in the
secondary last year that was lost going into this season: all-Big Ten performers
Brendan Smith, Brad Phillips, and Sherrick McManis, the last of whom is now
playing on Sundays. Those were some big shoes to fill, and while the current
slate of DBs have done a decent job taking over, there is some left to be
desired.
Brian Peters has filled in nicely after garnering a good amount
of playing time a year ago, as he leads NU in both total tackles (44) and solo
tackles (34). The secondary also has 7 of NU's 15 pass-break ups on the
season. An issue has been that the INTs haven't necessarily come from this
unit, and there have been at least a couple of drops that would have put
additional turnovers in NU's hands.
As mentioned in the linebacker
section, the 'Cats have done a pretty respectable job in pass efficiency D,
despite giving up a good amount of yards. While they've kept teams out of the
end zone in many situations, they will face much tougher tests down the stretch
that include a slew of offensive weapons.
Like the rest of the D, this
unit has experienced its share of dings, with S David Arnold sitting out for the
first four games of the year, but hopefully they're back at full health now and
can show some improvement in order to help contain some solid opposing offenses
through the final six games of the regular season.
Overall: B
The defense as a whole deserves a grade that is higher than the sum of
their parts, as demonstrated by their pretty solid yards allowed statistic (the
aforementioned 18.3 points per game allowed). Despite having breakdowns and
weaknesses in almost every unit, others have filled in when needed, and overall
the 'Cats have done a good job at stopping opponents when
necessary.
Credit Hankwitz for keeping this unit sound despite some
issues (giving up big plays and giving opponents fresh sets of downs with
penalties, in particular), as the D has given NU a chance to win every game (and
a chance to dominate some). Their play will be key down the stretch as it's
clear that the offense relies on Persa, and NU will need a boost from the
defense in the eventual game where Persa is focused upon and contained by an
opponent.
Look out for takeaways down the stretch; if Northwestern can
generate them, NU will be in good shape. If they can't, then things could get
ugly, as demonstrated through the first six games of the year. Finally, it will
be interesting to see what additional schemes Hankwitz throws into the mix and
how the 'Cats' fare against better offenses.
Go 'Cats!!!
e-mail: j-hodges@alumni.northwestern.edu
Previous jhodges commentary
jhodges
is the primary content provider of HailToPurple.com. His commentary
and game analyses appear regularly during the season and occasionally
in the offseason.
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