Final answer:
Without specific incidents from the game against Marshall, it's difficult to describe the behaviors precisely; however, Coach Gaines and his staff, including Trapper, are generally professional, focused, and strategic during games.
Step-by-step explanation:
The student's question refers to the behavior of the Permian coaches, including Coach Gaines and the trainer Trapper, during the game against Marshall in the book or adaptions of Friday Night Lights. Unfortunately, without additional context such as which game or specific incidents during a game, it's challenging to provide a detailed response. Typically, Coach Gaines is depicted as a dedicated and disciplined coach, focused on the game and making strategic decisions. He, along with his coaching staff like Trapper, exemplifies professionalism and the intensity that comes with high-stakes high school football. They tend to remain resolute and proactive during the game, making adjustments as needed and providing support and guidance to the players to execute the game plan.