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In preparation for this week’s B1G championship game, which this year will serve as a play in game for the College Football Playoff, I decided to study the All-22 film of the last meeting between Michigan State and Iowa from 2013. The Spartans defense did a nice job of using base coverage concepts and some effective wrinkles in order to create turnover opportunities and hold Iowa to only 14 points. While the personnel has obviously changed for both of these teams, the schemes are pretty much the same, so I believe a decent amount of these tactics and strategies will still translate to the 2015 title game.
Let’s start with the Michigan State blitz package. Mark Dantonio and his defensive staff have a large variety of 6 man pressures that feature 3 deep/2 under coverage. While Michigan State will bring the pressure in a number of different ways, one of their favorite blitz schemes is the Mike/Will A gap Cross-Dog. They ran this blitz 6 times versus Iowa, with one leading to an interception early in the first quarter. One of the things that makes the Michigan State blitz package so tough to deal with is that their is almost no indictor that the pressure is coming. Michigan State will align exactly like the same pre-snap as they would in their base defense. Post snap they will rotate to a 3 deep-2 under zone coverage and bring 6 rushers.
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The hook defenders responsibility is to wall off any crosser and protect the hashes. They are playing a “Hot” technique. Meaning they will run flat to where the QB is looking. Once the QB’s hand comes off the ball, they’ll turn their head and find an underneath route to cover. This is a common technique in blitz coverage. Here is an example from Pete Carroll’s Defensive Playbook.
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As long as the hook defenders do not allow a seam route down the hashes and disrupt that type of route, then the Deep 1/3 cornerbacks should be able to play depth & divider Cover 3 principles and defend any vertical route between the hash and the numbers. Depth and divider is a term for the cornerback with #1 vertical and #2 in the seam. Depth and divider in 3 deep zone is one yard on top of the numbers. The 2/1 read for the cornerback to the trips side means that the cornerback will read the release of the #2 receiver. So versus any type of smash concept, the cornerback will play the corner route by #2 and pass off the hitch route to the hook defender. The MOF 1/3 safety would be responsibility to defend any post route between the hashes.
Here is how Mark Dantonio divides the field in terms of pass defense.
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Iowa uses their tight end and running back to max protect. To the field side they are running a smash concept. So the cornerback playing the depth and divider and reading 2/1 will play the corner route from #2. As the pocket collapses the Iowa quarterback tries to target #1 to the weak side on a fade, probably thinking he’s seeing some type of zero coverage, which is typically the case with 6 man blitzes. But the cornerback plays perfect three deep zone technique and makes the interception.
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Versus 3×2 empty formations Michigan State’s base coverage adjustment is known as Midpoints. With midpoints Michigan State will match 4 over 3 to the strong side using pattern match Cover 3 principles and 3 over 2 to the weak side with Quarters coverage. Here are the rules for midpoints coverage: The field corner is midpointing #1 and #2, meaning he will lean on the inside shoulder of #1. If #1 runs under, then the field corner will try to work over the top of any vertical route by #2. The technique is the same for the safety midpointing #2 & #3. Lean on the inside shoulder of #2, if #2 runs under, work over the top of #3. The mike linebacker will wall #3 in order to funnel #3 to the safety midpointing #2 & #3. If #2 or #3 runs under, then the mike will play that route man to man. The curl-flat defender will reroute #2 and play any under route from #1 man to man. Here are some examples of the midpoints pattern reads versus various route combinations. Three verticals can be tough on this coverage, but here is the philosophy of former Michigan State defensive coordinator on midpoints coverage, “If they want to throw deep, let them throw deep to number one. It’s too far of a throw to number one to the field anyway.”
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Michigan State had a nice wrinkle with their coverage to the weak side of their midpoints coverage concept. To the weak side Michigan State is playing quarters coverage. A common quarters coverage beater is double slants. The quarterback will read the curl-flat defender with this concept. Typically the first slant will clear out the curl-flat defender, opening up a window to throw the slant to #1.
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Michigan State will drop their weak side defensive end right into the window for the 2nd slant with an engage peel technique. What this means is the defensive end will engage the tackle, then drop out right into the window of the 2nd slant. It’s this type of subtle tweak that can make Michigan State so dangerous defensively. They will show you a base look, but add some nuance that can create a takeaway for their defense.
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This was the perfect gameplan adjustment versus Iowa. The QB thinks he has a window to throw the slant to #1 after the slant from #2 clears out the curl-flat defender, but he throws it right to the defensive end on the engage-peel technique. Unfortunately for the Spartans the defensive end drops the interception, but this coverage scheme probably should have led to a pick 6.
Michigan State’s base coverage versus Trips or Trey is commonly referred to as Solo. I have written about this concept in detail here. Solo is a 3×1 adjustment that pushes the coverage to the trips 5 over 3, leaving the weak side defenders matched up man to man.
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While Michigan State did play plenty of Solo coverage versus Iowa, they also used their midpoints concept versus trips formations. In theory, any coverage you play to the trips side in 3×2 empty can be utilized versus a 3×1 set, as long as you’re not involving any weak side defenders into the coverage. So by playing midpoints and matching 4 over 3 versus 3×1 formations to the trips side, it allowed Michigan State to be creative versus the single receiver to the weak side. Michigan State played man-trail technique with their cornerback to the weak side with a deep 1/2 safety over the top, then used their weak side linebacker to play the running back man to man. They were able to keep Iowa off-balance and force incompletions by mixing up this look along with their Solo coverage.
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As I have pointed out in this article, the Spartans will make minor adjustments throughout the game to continue to change the look for the quarterback. Here is the same midpoints/2 man under concept versus Trips Split, except this time they tag the Mike linebacker with man to man coverage on #3. Everything else within the structure of the coverage remains consistent with the last example.
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One possible weakness with Solo coverage is that you leave the weak side cornerback man to man with no help. But Michigan State did use a Solo variation versus Iowa that also allowed them to bracket the single side receiver in a trips formation. In their sub-package the Spartans used a 3 man rush, matched 5 over 3 to the trips side using Solo principles, then played Cover 2 on the weak side with a squat cornerback and deep 1/2 safety.
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It’s 3rd and long and Michigan State is able to eliminate any vertical threats, force a check down and get a defensive stop deep in Iowa territory.
Michigan State is primarily a zone coverage team. But I did notice against the Hawkeyes that they played a Cover 1 Rat concept a couple of times. Cover 1 Rat is a man coverage with a MOF safety and a rat in the hole. The rat plays the low hole and will read the eyes of the quarterback, looking to rob any underneath throw in the middle of the field. Because Iowa is pretty static with their formations, it allowed Michigan State to look the same on defense pre-snap but continuously change up the coverages and keep the quarterback guessing.
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Most likely the Spartans were playing a funnel concept with the mike linebacker and weak side linebacker in their Cover 1 concept. What this means is that if the running back released to the strong side, then the mike linebacker would have covered him man to man and the will linebacker would become the rat in the hole. This is the best way to deal with the running back out of the backfield in Cover 1 in order to disguise the coverage and not get out leveraged no matter which way the back releases.
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In terms of elite college football coaches, Mark Dantonio and his staff have to be at or near the top of the list. The job they have done this year in spite of their injury situation and loss of defensive coordinator Pat Narduzzi has been remarkable. I thought the win in Columbus versus Ohio State a couple of weeks ago my was the finest coaching job of Dantonio’s career. His defense dominated the Ohio State offense on the road in a way that I did not think was possible. With a win versus Iowa on Saturday, the Spartans will take the next step as a program and have the opportunity to play for a national championship. I expect an aggressive and multiple game plan defensively from Michigan State, similar to what they showed in the 2013 meeting with the Hawkeyes,