A professional who analyzes performance and instructs professional athletes in game strategies and techniques to prepare them for athletic competition. Responsibilities include:

• Observes players while they perform to determine need for individual or team improvement.
• Coaches players individually or in groups, demonstrating techniques of sport coached.
• Oversees daily practice of players to instruct them in areas of deficiency.
• Determines strategy during game, independently or in conference with other coach, professional athletes or head coach based on factors as weakness in opposing team.
• May be designated according to phase of game coached as Defensive-Line Coach; Pitching Coach.
• May be designated according to game coached as Basketball Coach; Football Coach; Swimming Coach; Tennis Coach.