Final answer:
The assistant coach gave Rudy a chance to play on Notre Dame's scout team because of his dedication, hard work, and perseverance. This opportunity would motivate other players and enhance the competitive spirit of the team.
Step-by-step explanation:
The assistant coach's reason to give Rudy a chance to play on Notre Dame's scout team was because Rudy showed immense dedication, hard work, and perseverance. Despite being undersized for a college football player, Rudy demonstrated a strong work ethic, passion for the sport, and a never-give-up attitude.
The assistant coach recognized these qualities in Rudy and believed that his presence on the scout team would not only motivate other players but also enhance the overall competitiveness and spirit of the team. By giving Rudy a chance to play, the coach acknowledged his commitment and provided him with an opportunity to prove himself.