Every action or inaction impacts the game. I've shared a "Ratings Performance System" that allocates positive and negative value to actions.
Excerpts:
+3/-3 points (drawing a charge, committing a charge)
+3/-3 making or missing a three point shot
+2 (offense) two point goal, assist, screen leading to a basket, offensive rebound
-2 (offense) two point miss, turnover, missed free throw
+2 (defense) steal, forced turnover, blocked shot
-2 (defense) lost assignment, bad foul leading to free throws
+1 made free throw, defensive rebound, forced held ball
-1 allowed held ball, common foul
But how does a player become more efficient? It sums the components of vision, decisions, and execution.
Vision: Aside from playing, players can improve their vision using software like Intelligym. The old "Asteroids" video game is the poor man's version.
Decisions: Video helps reinforce positive and negative decisions. Positive decisions impact spacing, passing, shot selection, as well as defensive positioning, help, rotation, and recovery. Decisions affect everything.
Execution: The former two unleash skill. Skill training must translate to game actions. Defense, pressure, and fatigue degrade execution. A player who designs his skill training has to take those factors into consideration. For example, shooting fifty consecutive free throws is not as good as shooting 3-5 and running a sprint or sideline to sideline in between.
Returning to 'ratings performance' we find the low hanging fruit includes:
- better shot selection
- fewer turnovers
- reducing "bad fouls" (fouling bad shots, bad shooters, frustration fouls)
Tracking and recognizing "hustle stats" also rewards positive performance not available in conventional box scores.
Lagniappe. A separating move and good observations about film.