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Strategic Analysis

 

A structured framework of football analytical prompts categorizes queries into distinct operational layers—from raw data modeling and tape evaluation to in-game decision-making and front-office strategy.

Below is an organized summary of core analytical prompts tailored for football evaluation.

1. Macro Efficiency & Advanced Modeling

Focus: Measuring baseline efficiency, down-and-distance leverage, and hidden scoring value.

  • Expected Points Added (EPA) & Success Rate:

    "Analyze this game's drive data. Break down EPA per play and overall Success Rate by down (1st, 2nd, 3rd) and play type (rush vs. pass). Identify which unit was systematically sustainable versus relying on low-probability explosive plays."

  • Explosive Play & Turnover Volatility:

    "Evaluate the explosive play margin (runs 10+ yards, passes 20+ yards) and turnover-worthy plays (TWPs) versus actual turnovers. What was the net EPA swing caused by these high-leverage events?"

  • Drive Efficiency & Hidden Yardage:

    "Calculate the offense’s points per drive inside opponent territory versus overall starting field position. How much hidden yardage did special teams and penalties contribute to net field position margin?"

2. Scheme & All-22 Film Breakdown

Focus: Dissecting spatial alignment, coverage rules, pass-rush mechanics, and schematic counters.

  • Safety Shell & Post-Snap Rotation:

    "Review this drive's All-22 tape. Classify the defense's pre-snap shell (MOFO vs. MOFC) versus post-snap rotations (Cover 1, Cover 2, Cover 3, Cover 4, Cover 6). What structural tells did the quarterback exploit?"

  • Trench Win Rates & Pressure Generation:

    "Analyze line-of-scrimmage metrics: compare Pass Rush Win Rate (PRWR within 2.5s) to Run Stop Win Rate (RSWR within 3 yards). Did the defense generate organic four-man pressure, or did they rely on simulated pressures and blitzes to force quick throws?"

  • Route Concept vs. Coverage Scheme:

    "Identify the primary passing concepts used against Cover 3 and Quarters. How did the offense stress the underneath flat defenders and isolate deep third/quarter defenders?"

3. In-Game Strategy & Situational Leverage

Focus: Time management, game script effects, and critical conversion thresholds.

  • Fourth-Down & Two-Point Conversion Decision-Making:

    "Evaluate every 4th-down decision in this matchup using a Win Probability (WP) and Expected Points (EP) framework. Did the coaching staff maximize expected value on 4th-and-short attempts?"

  • Two-Minute & Clock Management Audit:

    "Audit the team's final drive of the first half: evaluate timeout sequencing, sideline boundary targeting, personnel substitution pacing, and clock bleed efficiency."

  • Game Script & Tendency Deviations:

    "How did the early-game scoring margin impact the offensive play-calling balance? Did the play-caller abandon neutral-script run-pass ratios prematurely?"

4. Player Evaluation & Role Specialization

Focus: Isolating individual performance from surrounding cast and scheme design.

  • Quarterback Processing & Pocket Presence:

    "Analyze the QB's performance by charting: Time to Throw (TTT), EPA from clean pocket vs. pressured pocket, depth of target (ADOT), and throw-away / sack avoidance rate."

  • Receiver Separation & YAC Over Expectation (YACOE):

    "Measure receiver target efficiency: isolate unassisted route separation at throw release from yards after catch gained above statistical expectation based on nearby defender pursuit angles."

  • Secondary Gap Discipline & Tackling Efficiency:

    "Track missed-tackle count, yards after contact conceded, and second-level gap-integrity breakdowns during designed interior run plays."

5. Front Office, Cap & Roster Construction

Focus: Valuation, surplus value curves, and structural team building.

  • Positional Spending vs. Production Surplus:

    "Analyze the roster's salary cap allocation by positional unit compared to league-wide EPA production. Where is the roster extracting elite surplus value, and where is it overpaying for replaceable baseline production?"

  • Draft Capital & Target Archetypes:

    "Evaluate a team's upcoming draft board using athletic testing composites (RAS/sparq) mapped against scheme fit requirements for outside cornerbacks and edge rushers."

Structural Template for Custom Prompts

When building a custom football analytics prompt, include four essential anchors:

\text{Role/Persona} + \text{Dataset/Film Context} + \text{Analytical Model (EPA, PRWR, All-22)} + \text{Specific Output Format}

Example formula:

"Act as an NFL quality control coach. Review [Dataset / Drive Log]. Evaluate [Metric/Scheme, e.g., 3rd-down EPA against Cover 1]. Present your findings in a summary table showing down, distance, play call, defensive alignment, EPA result, and key diagnostic takeaways."

Pass Rush Win Rate (PRWR) and Run Stop Win Rate (RSWR) are tracking-data metrics developed by ESPN Analytics using NFL Next Gen Stats.

Rather than relying on human charting or box-score outcomes (like sacks or tackles), both metrics process high-frequency radio-frequency identification (RFID) tracking chips embedded in player shoulder pads to measure spatial relationships, speed, and orientation across every snap.

Pass Rush Win Rate (PRWR)

PRWR isolates trench play from secondary coverage and quarterback release speed. A pass-rusher could instantly beat his blocker, but if the quarterback throws a quick slant in 1.6 seconds, traditional stats record no pressure or sack. PRWR solves this discrepancy.

  • The Core Definition: A pass-rusher earns a "win" if he beats his blocker within 2.5 seconds of the snap.
  • Calculation: \text{PRWR} = \frac{\text{Pass Rush Wins}}{\text{Qualified Pass Rush Snaps}}
  • How a "Win" Is Determined by the Algorithm:
    • Engagement: The model tracks player proximity and orientation to establish who is blocking whom.
    • Separation & Path: A win is awarded if the defender gets past the blocker toward the quarterback or forces the blocker completely out of position to establish a clear pursuit lane before the 2.5-second mark.
    • Double-Team Logic: If a defender faces a double team, he must beat both blockers to receive a win. Beating one while the second secures him does not count.
    • Inverse Relationship: A pass-rush win automatically awards a loss to the blocker; conversely, if an offensive lineman holds his block for at least 2.5 seconds, he earns a Pass Block Win.
  • League Context: Elite edge rushers typically register a PRWR between 22% and 30% (roughly 1 win every 4 passing snaps).

Run Stop Win Rate (RSWR)

RSWR assesses how effectively a defender blows up a designed running play at or near the line of scrimmage, even if another teammate eventually cleans up the ball carrier.

  • The Core Definition: A defender earns a "run stop win" on a run snap if he disrupts the run scheme by meeting any of four criteria:
    1. Beating the block: Shedding or out-leveraging the blocker into a primary position to tackle the runner.
    2. Collapsing the lane: Driving his blocker backward into the running lane or intended gap.
    3. Forcing a redirect (Containment): Setting the edge or plugging a gap so definitively that the runner is forced to alter his path (e.g., bouncing outside or cutting back).
    4. Making a short tackle: Executing a tackle within 3 yards of the line of scrimmage.
  • Calculation: \text{RSWR} = \frac{\text{Run Stop Wins}}{\text{Qualified Run Defense Snaps}}
  • Inverse Relationship: A run stop win awards a Run Block Loss to the offensive lineman assigned to him, and vice versa.
  • League Context: Dominant defensive tackles and edge defenders typically register an RSWR between 32% and 40%.

Summary Comparison

FeaturePass Rush Win Rate (PRWR)Run Stop Win Rate (RSWR)
Primary Clock/Spatial BenchmarkBeat block in \le 2.5 secondsTackle within \le 3 yards or redirect/penetrate
Offensive CounterpartPass Block Win Rate (PBWR)Run Block Win Rate (RBWR)
Primary ValueRemoves QB time-to-throw biasCredits block disruption, not just credited tackles
Data EngineNFL Next Gen Stats (RFID tracking)NFL Next Gen Stats (RFID tracking)

Analyzing an NFL game requires looking far beyond the final score. Below are 20 distinct lenses coaches, analysts, and advanced scouts use to evaluate performance.

Macro & Situation-Based Lenses

  1. EPA (Expected Points Added) per Play: Measures play-by-play net impact against historical drive expectations based on down, distance, and field position.
  2. Success Rate: Measures the percentage of plays that gain acceptable yardage relative to the situation (e.g., 50% on 1st down, 70% on 2nd down, 100% conversion on 3rd/4th down).
  3. High-Leverage Situations: Evaluates execution in decisive moments: 3rd-and-short, 4th-down conversion attempts, red zone efficiency, and goal-to-go stops.
  4. Game Script & Win Probability Leverage: Tracks how early-lead margins or deficits alter play-calling tendencies, run-to-pass ratios, and clock-drain strategies.
  5. Two-Minute & Clock Management: Evaluates end-of-half and end-of-game efficiency, timeout usage, sideline targeting, and delay-of-game avoidance.
  6. Explosive Play Ratio: Tracks runs of 10+ yards and passes of 20+ yards versus allowed explosives, often the single strongest correlation to winning margins.
  7. Hidden Yardage (Field Position & Penalties): Analyzes kickoff/punt net return averages, touchback efficiency, starting drive position, and penalty yard differential.
  8. Drive Finishing Rate: Evaluates points scored per drive crossing the 50-yard line, identifying whether offenses convert field position into touchdowns or settle for field goals.

Scheme & Matchup-Based Lenses

  1. Trench Line-of-Scrimmage Metrics: Uses Next Gen Stats to measure Pass Rush Win Rate (PRWR), Run Stop Win Rate (RSWR), and offensive line pocket clean-pocket duration.
  2. Pre-Snap Mechanics & Disguise: Evaluates how offenses use pre-snap motion to identify coverage, and how defenses shift two-high/single-high shells post-snap to deceive the quarterback.
  3. Personnel Groupings & Matchups: Tracks efficiency out of specific offensive packages (11 personnel: 1 RB, 1 TE; 12 personnel: 1 RB, 2 TE) against defensive personnel (Base, Nickel, Dime).
  4. Target Distribution & Coverage Schemes: Maps completions against defensive shells (Cover 1, Cover 2, Cover 3, Cover 4/Quarters) and evaluates individual route-win separations.
  5. Blitz vs. Base Pressure Efficiency: Analyzes whether a defense generates organic four-man pressure or must send 5+ rushers, paired with the quarterback's EPA under pressure vs. a clean pocket.
  6. Passing Depth & Spray Chart Analysis: Evaluates route trees by depth (behind line of scrimmage, short 0–9, intermediate 10–19, deep 20+) and field third (left, middle, right).

Player Execution & Film Study

  1. Quarterback Time-to-Throw & Processing Speed: Measures seconds from snap to release, progression pacing, sack avoidance, and scrambles vs. designed runs.
  2. Tackling Efficiency & Yards After Contact: Tracks missed tackle counts, broken tackles, and defensive gap-integrity failures in the second level.
  3. YAC (Yards After Catch) vs. Anticipated Separation: Compares actual yards gained post-catch against statistical models predicting expected YAC based on nearby defenders.
  4. Turnover Margin & Turnover-Worthy Plays: Separates raw turnovers (which include flukey fumbles or tipped balls) from interceptable passes and ball-carrier security lapses.
  5. Special Teams DVOA (Defense-adjusted Value Over Average): Isolates the stand-alone value added by kicking accuracy, hang time, coverage units, and return blocking.
  6. All-22 Film Alignment & Assignment Review: Studies the full-field overhead camera angle to evaluate untelevised play, such as backside blocking, safety rotation depth, and secondary discipline.

 

Reading coverage on All-22 film comes down to a two-step sequence: classify the pre-snap safety shell as Middle of the Field Open (MOFO) or Middle of the Field Closed (MOFC), then watch the cornerback eyes and hip direction at the snap to verify the post-snap rotation.

The Baseline Anchor: MOFO vs. MOFC

  • MOFC (Cover 1 & Cover 3): One safety is stationed in the deep middle of the field (12–15 yards deep). The second safety drops into the box, over a tight end, or into the flat.
  • MOFO (Cover 2 & Cover 4): Two safeties split the field, typically aligned on or just outside the hash marks (10–14 yards deep), leaving the deep center open.

Cover 1 (Man-Free)

Cover 1 is a single-high man-to-man coverage. One deep safety protects the post, while all other perimeter defenders lock onto individual assignments.

  • Safety Alignment: MOFC. One deep centerfielder at 12–15 yards. The other safety is "down" in the box as a robber, blitzing, or covering the tight end.
  • Cornerback Technique: Pressed or playing close-off coverage (3–5 yards). Cornerbacks align with inside leverage (shading toward the inside hip of the receiver) to wall off crossers and slant routes, trusting deep safety help over the top.
  • The Post-Snap Tell: Eyes and hips. Cornerbacks do not look at the quarterback; their eyes remain locked on the receiver's hips or chest. When the receiver releases, defenders turn and run shoulder-to-shoulder with them.

Cover 2 (Two-Deep, Five-Under Zone)

Cover 2 splits the deep field between two safeties, leaving five underneath zone defenders to disrupt short routes.

  • Safety Alignment: MOFO. Two safeties split roughly on the hashes, 12–14 yards deep, backpedaling at the snap to cover their respective deep halves.
  • Cornerback Technique: Squatting at 4–6 yards off the line of scrimmage with an outside shade (funneling the receiver inside toward the linebackers and safeties).
  • The Post-Snap Tell: Cornerbacks keep their eyes in the backfield on the quarterback. Instead of bailing deep, they aggressively jam/re-route the outside receiver, release him downfield, and sink into the flat to trap underneath throws. In Tampa 2, watch the middle linebacker (Mike): he will open his hips and sprint down the deep middle "pipe" between the two safeties.

Cover 3 (Three-Deep, Four-Under Zone)

Cover 3 is the most common single-high zone scheme, assigning three deep defenders to cover thirds of the field while four defenders patrol underneath.

  • Safety Alignment: MOFC. One free safety occupies the deep middle third. If the defense shows a two-high pre-snap shell, one safety will rotate down toward the line of scrimmage immediately before or at the snap ("spinning down").
  • Cornerback Technique: Off-coverage (6–8 yards deep). Unlike Cover 1, the cornerbacks play with outside or head-up leverage.
  • The Post-Snap Tell: At the snap, both outside cornerbacks immediately execute a bail technique—opening their hips at a 45-degree angle toward the sideline and retreating to protect their deep outside thirds. Their eyes read through the #1 receiver to the quarterback's drop.

Cover 4 / Quarters (Four-Deep, Three-Under)

Cover 4 gives the appearance of Cover 2 pre-snap, but splits the field into four deep quarters across both cornerbacks and both safeties.

  • Safety Alignment: MOFO. Two safeties deep, but noticeably flatter and tighter to the line (10–12 yards) than in pure Cover 2, positioning them to trigger downhill against the run.
  • Cornerback Technique: Off-coverage at 7–8 yards, often aligned head-up or slightly inside the #1 receiver.
  • The Post-Snap Tell: Four defensive backs bail deep. The definitive tell is how the safeties read the #2 (inside/slot) receiver:
    • If #2 runs a vertical route (seam/post), the safety matches him man-to-man down the field.
    • If #2 breaks flat or underneath, the safety keeps his eyes inside to rob the in-breaking route of the outside #1 receiver, leaving the cornerback isolated one-on-one deep.

Quick All-22 Diagnostic Flowchart

MetricCover 1Cover 2Cover 3Cover 4
Middle of FieldClosed (1 High)Open (2 High)Closed (1 High)Open (2 High)
CB Eyes at SnapLocked on ReceiverLocked on QBQB through ReceiverReceiver release to #2
CB AlignmentPress / Inside ShadeSoft squat / Outside7–8 yds off / Bail7–8 yds off / Deep Bail
Deep Responsibility1 Safety (Middle)2 Safeties (Halves)2 CBs + 1 Safety (Thirds)2 CBs + 2 Safeties (Quarters)

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