Motion Offense (Bob Knight / Indiana lineage)

Family: read-and-react continuity. No called plays — players make decisions based on rules and reads.

Spacing

4-out-1-in or 5-out depending on personnel. Big at high post or short corner.

Core principles

1. Pass and screen away — after every pass, screen for the next-closest non-ball teammate.
2. Pass and cut — alternative: cut hard to the rim, replace from the weak side.
3. Screen the screener — when a screen is set, the next action is to screen for that screener.
4. Read the defense, not the diagram.

Required reads

• On-ball: drive lane → drive; help comes → kick to skip or short corner.
• Off-ball cutter: if defender turns head → backdoor; if defender plays high → curl.
• Screener: slip if defender hedges; pop if defender drops; roll if defender switches late.

Counters / answers

• vs Pack-line: stretch the floor with shooters; use back screens to attack the gaps; flash to high post for ball reversal.
• vs Switch-everything: screen with mismatched bodies, attack the switch immediately (post-up or drive-by).
• vs 2-3 zone: ball-screen the top guard, drag the zone, hit the short corner / high post.
• vs 1-3-1: flash to free-throw line, attack baseline gaps, skip-pass over the trap.

Scout signals (you're seeing motion if…)

• No discernible called sets after made baskets
• Constant screening away from the ball
• Players cutting hard after every pass
• Bigs flashing high-low

Modern hybrids

• Princeton motion (cuts + chin action + back-cuts; see princeton.md)
• Read-and-react (Rick Torbett system — layered reactions)
• 5-out motion (modern NBA — replaces traditional post motion)

See also

• concepts/spacing.md
• concepts/off-ball-screens.md
• defense/pack-line.md (counter target)

Sources & further reading

Verified citations (this file's content can be checked against)

• Wikipedia — Motion offense — confirms Bob Knight's role developing the modern motion offense at Indiana, his influence from Pete Newell and the Princeton offense (after the 1972 Olympic trials), and the rules-based (not play-call) structure described in this file.
• Jeff Walker, "Knight Developed Motion Offense Through Research, And He's Always Adapting" (Avalanche-Journal, archived) — primary source on Knight's evolution from Army's "reverse action" to the Indiana motion.
• FastModel Sports Playbank — Motion Offense tag — diagrammed examples of pass-and-screen-away, pass-and-cut, screen-the-screener actions matching the rules in this file.
• Dean Smith, Basketball: Multiple Offense and Defense (Allyn & Bacon, 1981) — UNC's "passing game" variant, a major influence on modern motion concepts (cited in most motion-offense literature).
• Hubie Brown clinic talks (available through Coaching U / Championship Productions) — rules-based motion teaching from a Hall of Fame source.

Recommended further reading for staff

• Hoop Coach — Motion Offense article — practical install progression for HS programs.
• Slappin' Glass — episodes on European motion concepts — modern global takes on rules-based offense.
• Bob Knight & Bob Hammel, Knight: My Story (Thomas Dunne, 2002) — Knight's own account of his offensive philosophy.

Verification notes (Claude)

• All four core principles (pass-and-screen-away, pass-and-cut, screen-the-screener, read defense) are standard and well-documented in motion-offense literature.
• "Read-and-react" is sometimes used loosely; in this file it appropriately refers to the broad family while read-and-react.md covers Torbett's specific system. Good distinction.
• "Princeton motion" is a reasonable hybrid label but not a formal system name — coaches use it informally; flag if precision is needed.
• Could not verify a specific Hubie Brown citation URL; his motion teaching is documented in Championship Productions DVDs and clinic transcripts but not always free online.