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	Comments on: How Consistent Is Defensive Sack Data From Year To Year?	</title>
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		<title>
		By: Phil		</title>
		<link>http://www.footballperspective.com/how-consistent-is-defensive-sack-data-from-year-to-year/#comment-326697</link>

		<dc:creator><![CDATA[Phil]]></dc:creator>
		<pubDate>Wed, 21 Jun 2017 15:18:00 +0000</pubDate>
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					<description><![CDATA[Couple of thoughts:

- I wonder, if you looked at just divisional games, whether the consistency would change at all, yr to yr the matchups in divisional game should have somewhat less turnover

- obviously there are two sides to the sack rate, some defenses are better at getting sacks, and some offenses are better at preventing sacks, how much of the variation is a function of last year our non divisional games were against the AFC South and NFC South, and they have a bunch of offenses with poor sack rates, and this year, we&#039;re playing the AFC West and NFC West, and they have a bunch of offenses with good sack rates (just creating a random example)

just looking at divisional games might smooth that out a little

- staying with that theme, is the offensive sack rate more or less consistent than the defensive sack rate?  How much of the sack rate is a function of the QB holding the ball and not making quick decisions, poor offensive line play, the OC being outschemed/calling poor plays, WR not running the right hot route, etc

sacks might be more of a function of capitalizing on offensive mistakes, than something the defense can generate at will

- I think some of these are questions that we&#039;ll be better able to answer as the game gets tracked better in the future, a sack that happens 1.2 seconds after the snap has different implications of who deserves credit and fault than a sack that happens 3.7 seconds after the snap, same thing with when the defense rushed 6 vs when it rushed 3, when the offense kept both backs and the TE in blocking vs had 5 guys in the route, etc

there&#039;s obviously a ton of noise that goes into the sack rate, and obviously, the offense will change tactics to attempt to manage going against the better pass rushing team (more screens/draws, quicker throws, keeping more guys in to block) which adds additional noise]]></description>
			<content:encoded><![CDATA[<p>Couple of thoughts:</p>
<p>&#8211; I wonder, if you looked at just divisional games, whether the consistency would change at all, yr to yr the matchups in divisional game should have somewhat less turnover</p>
<p>&#8211; obviously there are two sides to the sack rate, some defenses are better at getting sacks, and some offenses are better at preventing sacks, how much of the variation is a function of last year our non divisional games were against the AFC South and NFC South, and they have a bunch of offenses with poor sack rates, and this year, we&#8217;re playing the AFC West and NFC West, and they have a bunch of offenses with good sack rates (just creating a random example)</p>
<p>just looking at divisional games might smooth that out a little</p>
<p>&#8211; staying with that theme, is the offensive sack rate more or less consistent than the defensive sack rate?  How much of the sack rate is a function of the QB holding the ball and not making quick decisions, poor offensive line play, the OC being outschemed/calling poor plays, WR not running the right hot route, etc</p>
<p>sacks might be more of a function of capitalizing on offensive mistakes, than something the defense can generate at will</p>
<p>&#8211; I think some of these are questions that we&#8217;ll be better able to answer as the game gets tracked better in the future, a sack that happens 1.2 seconds after the snap has different implications of who deserves credit and fault than a sack that happens 3.7 seconds after the snap, same thing with when the defense rushed 6 vs when it rushed 3, when the offense kept both backs and the TE in blocking vs had 5 guys in the route, etc</p>
<p>there&#8217;s obviously a ton of noise that goes into the sack rate, and obviously, the offense will change tactics to attempt to manage going against the better pass rushing team (more screens/draws, quicker throws, keeping more guys in to block) which adds additional noise</p>
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		<title>
		By: Frank Yi		</title>
		<link>http://www.footballperspective.com/how-consistent-is-defensive-sack-data-from-year-to-year/#comment-326683</link>

		<dc:creator><![CDATA[Frank Yi]]></dc:creator>
		<pubDate>Tue, 20 Jun 2017 17:11:00 +0000</pubDate>
		<guid isPermaLink="false">http://www.footballperspective.com/?p=33462#comment-326683</guid>

					<description><![CDATA[Nice data set.  For the highly concentrated teams, you pretty much know who the one/few are (Watt, Ware, Freeney/Mathis, Allen, etc).  Big changes are likely due to either the loss of a player (Allen going to the Vikings), or guys coming off record/near-record performances (Strahan in 2001, Aldon Smith in 2012), but it makes sense that teams built around a premier rusher would experience consistent performances year-to-year.

The change for less concentrated teams is not statistically significant.  The consistency here also makes sense: teams that fall here probably rely more on scheme to generate sacks (speculating); I would guess the biggest cause for the changes would be either inheriting a premier rusher, or a coaching change (especially the DC)]]></description>
			<content:encoded><![CDATA[<p>Nice data set.  For the highly concentrated teams, you pretty much know who the one/few are (Watt, Ware, Freeney/Mathis, Allen, etc).  Big changes are likely due to either the loss of a player (Allen going to the Vikings), or guys coming off record/near-record performances (Strahan in 2001, Aldon Smith in 2012), but it makes sense that teams built around a premier rusher would experience consistent performances year-to-year.</p>
<p>The change for less concentrated teams is not statistically significant.  The consistency here also makes sense: teams that fall here probably rely more on scheme to generate sacks (speculating); I would guess the biggest cause for the changes would be either inheriting a premier rusher, or a coaching change (especially the DC)</p>
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